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2235

OSCILLOSCOPE SERVICE

INSTRUCTION

MANUAL

7 eIctro ηά COMMITTED TO E XC ELLENCE

WA RN I N G

THE F O LLOWIN G SERV ICI NG I NSTRUCTION S ARE FO R US E BY Q U ALI F I ED PERSONNEL ONLY . TO AVOID PER SO NAL I NJUR Y, DO NOT PERFORM ANY SERV ICI N G OTHER THAN THAT CO NTAI NED IN OPERATI N G I N STRUCTION S UNLE SS YOU ARE QUA LI FI ED TO DO SO . REFER TO OPERATORS SAFETY S UMMARY A N D S ERV ICE SAFETY S UMMA R Y PR IO R TO PERF O RM I NG ANY SERV IC E.

Te k tro n ix N atio n al M ar k eting Ce n ter

for P roduct Order Information, call

1-800-426-2200 ext 41

In Oregon call collect (503)627-9000 ext 41 Tektronix Natio n al Mark eting Cente r P.O. Box 500 D/S Υ6-088, Beaverton, OR 97077

PLE AS E C HE CK FOR C HAN GE INFORMATIO N AT THE REAR O F T H IS M ANUAL.

2235

OSCILLOSCOPE SERVICE

Inc . Ρ . Ο. Box 500

I N ST RU CTIO N

Te k tronix,

B eaverton, Oregon 070-4206-00 Prod uct Group 46

97077

Serial

M A NU A L

N umber First P rinting DEC 1982 R evised MAY 1983

Copyrig ht ύ 1982 Tektronix, In c. All rig hts reserved . Contents of this p ublication may not b e reproduce d in any form without the written permissio n of Tektronix, Inc. Products of Tektronix, I n c. and its subsidiaries are cove red b y U .S . and foreign p atents and/or pending paten ts . TEKTR O N IX, ΤΕΚ, SCO PE-MOBILE, and are Ta registered trademarks of Tektronix, I nc. TELE Q U I PMENT is α registered trademark of Tektronix U .K. L imited . Printed i n U .S.A. Specification and p rice change p rivileges are reserved .

I NSTRUMENT SER IAL NUMBER S Each i nstrument h as α serial n umber on α panel insert, tag, or stamped on the ch assis . T he first nu mber o r letter desig nates the country of manufact ure. The last five d igits of the serial n umbe r are assigne d sequentially and are unique to each i n str ument . Those manufactured in t he United States h ave six unique d igits . The country of manufacture is i dentified as follows : ΒΟΟΟΟΟΟ 100000 200000 300000 700000

Tektronix, I nc ., B eaverto n , Orego n , USA Tektronix G uern sey, Ltd ., Channel islands Tektronix United Kingdom, L td ., Lo n don Sony/Tektronix, J apan Tektronix Holla nd , NV, Hee renvee n , The Neth erlands

2235 Service

TA BLE OF CO N T EN TS L IST OF ILLUSTRATIONS . . . . . . . . . . . . . . . . . . . .

LIST OF TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . OPERATORS SAFETY SUMMARY . . . . . . . . . . . . . SERVICING SAFETY SUMMARY . . . . . . . . . . . . . . . SECTION 1

SECTION 2

iii iii ίν ν

SPECIFICATION INTRODUCTION . . . . . . . . . . . . . . . . 1-1 ACCESSORIES . . . . . . . . . . . . . . . . . 1-1 PERFORMANCE CONDITIONS . . . . 1-1 OPERATING INSTRUCTIONS PREPARATION FOR USE . . . . . . . . SAFETY . . . . . . . . . . . . . . . . . . . . L INE VOLTAGE . . . . . . . . . . . . . . POWER CORD . . . . . . . . . . . . . . . L INE FUSE . . . . . . . . . . . . . . . . . . INSTRUMENT COOLING . . . . . . . CONTROLS, CONNECTORS, AND INDICATORS . . . . . . . . . . . . . . . . . . . POWER, DISPLAY, AND PROBE ADJUST . . . . . . . . . . . . . . . . . . . . VERTICAL . . . . . . . . . . . . . . . . . . HORIZONTAL . . . . . . . . . . . . . . . . TRIGGER . . . . . . . . . . . . . . . . . . . REAR PANEL . . . . . . . . . . . . . . . . OPERATING CONSIDERATIONS . . . GRATICULE . . . . . . . . . . . . . . . . . GROUNDING . . . . . . . . . . . . . . . . SIGNAL CONNECTIONS . . . . . . . INPUT COUPLING CAPACITOR PRECHARGING . . . . . . . . . . . . . . OPERATOR'S ADJUSTMENTS . . . . INTRODUCTION . . . . . . . . . . . . . TRACE ROTATION . . . . . . . . . . . . PROBE COMPENSATION . . . . . . OSCILLOSCOPE DISPLAYS . . . . . . INTRODUCTION . . . . . . . . . . . . . B ASELINE TRACE . . . . . . . . . . . . SIGNAL DISPLAY . . . . . . . . . . . . M AGNIFIED-SWEEP DISPLAY . . DELAYED-SWEEP DISPLAY . . . . DELAYED-SWEEP MEASUREMENTS . . . . . . . . . . . . SINGLE-SWEEP DISPLAY . . . . . . Χ-Υ DISPLAY . . . . . . . . . . . . . . . . TV SIGNAL DISPLAYS . . . . . . . .

2-1 2-1 2-1 2-1 2-1 2-2 2-2 2-2 2-3 2-4 2-6 2-7 2-8 2-8 2-8 2-8 2-8 2-9 2-9 2-9 2-9 2-10 2-10 2-10 2-11 2-11 2-11 2-11 2-12 2-12 2-12

SECTION 3

THEORY OF OPERATION . . . . . . . . INTRODUCTION . . . . . . . . . . . . . . . . GENERAL DESCRIPTION DETAILED CIRCUIT DESCRIPTION VERTICAL ATTENUATORS . . . . . In p ut Coupling . . . . . . . . . . . . . B uffer Amplifier and Gain Switching N etwork . . . . . . . . . . Paraphase Amplifier . . . . . . . . . VERTICAL PREAMPLIFIERS . . . CHANNEL SWITCH A ND VERTICAL OUTPUT . . . . . . . . . . Delay L ine Driver . . . . . . . . . . . Vertical Output Amplifier . . . . . Α/Β Sweep Separation Circuit . TRIGGER AMPLIFIERS AND SWITCHING . . . . . . . . . . . . . . . . . Internal Trigger . . . . . . . . . . . . . Internal Trigger Amplifier . . . . . Α External Trigger Am plifier . . . L ine Trigger Amplifier . . . . . . . . Α TRIGGER GENERATOR . . . . . . Α Trigger Level Circuit . . . . . . . Α Trigger Level Comparator . . Α Schmitt Trigger and TV Trigger Circuit . . . . . . . . . . . . . Α SWEEP GENERATOR AND L OGIC . . . . . . . . . . . . . . . . . . . . . . Α M iller Sweep Generator . . . . Α Sweep Logic . . . . . . . . . . . . ALTERNATE Β SWEEP . . . . . . . . Β M iller Sweep Generator . . . . Β Trigger L evel Comparator . . Runs After Delay . . . . . . . . . . . Β Delay Time Position Comparator . . . . . . . . . . . . . . . Β Sweep Logic . . . . . . . . . . . . Alternate Display Switching Logic . . . . . . . . . . . . . . . . . . . . Β Ζ-Axis Logic . . . . . . . . . . . . . HORIZONTAL . . . . . . . . . . . . . . . . Horizontal Preamplifier . . . . . . . Χ-Υ Amplifier . . . . . . . . . . . . . . Horizontal Output Amplifier . . . Z-AXIS AMPLIFIER . . . . . . . . . . . Dc Restorer . . . . . . . . . . . . . . .

3-1 3-2 3-3 3-3 3-3 3-4 3-4 3-5 3-5 3-6 3-6 3-7 3-7 3-7 3-8 3-8 3-8 3-9 3-9 3-9 3-9 3-9 3-10 3-11 3-11 3-12 3-12 3-12 3-12 3-12 3-13 3-13 3-13 3-14 3-14 3-15 3-15 3-16

2235 Service

TA BLE OF CO N T EN TS (cont) SECTION 3

SECTION 4

SECTION 5

SECTION 6

ιι

THEORY OF OPERATION (cont) POWER SUPPLY AND PROBE ADJUST . . . . . . . . . . . . . . . . . . Power Input . . . . . . . . . . . . . Preregulator . . . . . . . . . . . . . Inverter . . . . . . . . . . . . . . . . . Crt Supply . . . . . . . . . . . . . . Focus Circuit . . . . . . . . . . . . Low-Voltage Supplies . . . . . Probe Adjust . . . . . . . . . . . .

Page

. . . . . . . .

. . . . . . . .

PERFORMANCE CHECK PROCEDURE INTRODUCTION . . . . . . . . . . . . . . . . PURPOSE . . . . . . . . . . . . . . . . . . STRUCTURE . . . . . . . . . . . . . . . . TEST EQUIPMENT . . . . . . . . . . . L IMITS AND TOLERANCES . . . . PREPARATION FOR CHECKS . . INTRODUCTION Τ0 PERFORMANCE CHECK STEPS VERTICAL . . . . . . . . . . . . . . . . . . HORIZONTAL . . . . . . . . . . . . . . . . TRIGGER . . . . . . . . . . . . . . . . . . . EXTERNAL Z-AXIS AND PROBE ADJUST . . . . . . . . . . . . . . . . . . . . ADJUSTMENT PROCEDURE INTRODUCTION . . . . . . . . . . . . . . . . PURPOSE . . . . . . . . . . . . . . . . . . STRUCTURE . . . . . . . . . . . . . . . . TEST EQUIPMENT . . . . . . . . . . . L IMITS AND TOLERANCES . . . . ADJUSTMENT INTERACTION . . PREPARATION FOR ADJUSTMENT . . . . . . . . . . . . . . . INDEX TO ADJUSTMENT PROCEDURE STEPS . . . . . . . . . POWER SUPPLY AND CRT DISPLAY VERTICAL . . . . . . . . . . . . . . . . . . . . . H ORIZONTAL . . . . . . . . . . . . . . . . . . TRIGGER . . . . . . . . . . . . . . . . . . . . . EXTERNAL Z-AXIS AND PROBE ADJUST . . . . . . . . . . . . . . . . . . . . . .

M AINTENANCE

SECTION 6

3-17 3-17 3-17 3-18 3-18 3-18 3-19 3-19

4-1 4-1 4-1 4-1 4-1 4-2 4-3 4-4 4-8 4-12 4-15 5-1 5-1 5-1 5-1 5-1 5-1 5-1 5-3 5-4 5-6 5-14 5-20 5-24

STATIC-SENSITIVE COMPONENTS 6-1 PREVENTIVE MAINTENANCE . . . . . 6-2

MAINTENANCE (cont)

Page

I NTRODUCTION

. . . . . . . . . . . .. GENERAL CARE . . . . . . . . . . . . . INSPECTION AND CLEANING . . LUBRICATION . . . . . . . . . . . . . . . SEMICONDUCTOR CHECKS . . . PERIODIC READJUSTMENT . . . TROUBLESHOOTING . . . . . . . . . . . . INTRODUCTION . . . . . . . . . . . . . TROUBLESHOOTING AIDS . . . . TROUBLESHOOTING EQUIPMENT . . . . . . . . . . . . . . . . TROUBLESHOOTING TECHNIQUES . . . . . . . . . . . . . . . CORRECTIVE MAINTENANCE . . . . INTRODUCTION . . . . . . . . . . . . . M AINTENANCE PRECAUTIONS . OBTAINING REPLACEMENT PARTS . . . . . . . . . . . . . . . . . . . . . M AINTENANCE AIDS . . . . . . . . . I NTERCONNECTIONS . . . . . . . . . TRANSISTORS AND INTEGRATED CIRCUITS . . . . . . . SOLDERING TECHNIQUES . . . . REMOVAL A ND REPLACEMENT I NSTRUCTIONS . . . . . . . . . . . . . . Cabinet . . . . . . . . . . . . . . . . . . . Cathode-Ray Tube . . . . . . . . . . Power-Supply Shield . . . . . . . . Filter Circuit Board . . . . . . . . . . Alt Sweep Circuit Board . . . . . Attenuator Circuit Board . . . . . Timing Circuit Board . . . . . . . . Bottom Shield, Attenuator a nd Timing Circuit-Board M odule . . Front-Panel Circuit Board . . . . M ain Circuit Board . . . . . . . . . . REPACKAGING F OR SHIPMENT SELECTABLE COMPONENTS . .

SECTION 7

OPTIONS

SECTION 8

REPLACEABLE ELECTRICAL PARTS

SECTION 9

DIAGRAMS

SECTION 10 REPLACEABLE MECHANICAL PARTS Accessories CHANGE INFORMATION

6-2 6-2 6-2 6-4 6-4 6-4 6-5 6-5 6-5 6-6 6-6 6-10 6-10 6-10 6-10 6-10 6-10 6-11 6-12 6-13 6-13 6-13 6-14 6-14 6-15 6-15 6-16 6-17 6-17 6-18 6-20 6-20

2235 Service

L IST O F I LLU ST R ATIO N S Fig ure 1-1 2-1 2-2 2-3 2-4 2-5 2-6

Page Th e 2235 Oscillosco pe . . . . . . . . . . . . . . . . M aximum input voltage vs . frequency derating curve for CH 1 OR Χ, CH 2 OR Υ, and ΕΧ 7 INPUT conn ectors . . . . . . . . . . . . Voltage, power cord, and fuse data . . . . . . F use h ol d er and p ower co rd connector . . . Power, display, and probe adjust co ntrols co nn ector and indicator . . . . . . . . . . . . . . . . Vertical controls and conn ectors . . . . . . . . . Horizontal controls . . . . . . . . . . . . . . . . . . . Trigger controls, connector, and indicator .

vi 1-7 2-1 2-2 2-3 2-4 2-5 2-6

F igure 2-7 2-8 2-9 3-1 3-2 3-3 3-4 3-5 6-1

Page R ear-panel connector . . . . . . . . . . . . . . . . .

Gratic ule measureme nt markings . . . . . . . . P ro be compensation . . . . . . . . . . . . . . . . . . B lock diagram of the Vertical Atte nuators . B lock diagram of the Channel Switching circ uitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . B lock diagram of the Α Sweep Generator and Logic Circuitry . . . . . . . . . . . . . . . . . . . Block diagram of the Horizontal Am plifier . Sim p lified diagram of the Dc Restorer circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . M ulti-conn ector holder orientatio n . . . . . . .

2-7 2-8 2-10 3-4 3-6 3-10 3-14 3-16 6-6

L IST O F TA BLE S Ta ble 1-1 1-2 1-3 4-1 4-2 4-3 4-4 4-5 4-6 5-1 5-2 5-3

Page Electrical Characte ristics . . . . . . . . . . . . . . Environmental Characteristics . . . . . . . . . . Physical Characte ristics . . . . . . . . . . . . . . Test Equi pment R equired . . . . . . . . . . . . . Deflection Accuracy Limits . . . . . . . . . . . . Settings for Band wi dth Chec ks . . . . . . . . Settings for Timi ng Accuracy Chec ks . . . . Settings for Delay Time Accur acy Checks Switch Combinatio ns for Α Trigge ring Chec ks . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ad justment Interactions . . . . . . . . . . . . . . Power Su pply L imits . . . . . . . . . . . . . . . . . Deflection Accuracy Limits . . . . . . . . . . . .

. . . . . . . .

1-2 1-8 1-9 4-2 4-4 4-6 4-9 4-10

. . . .

4-12 5-2 5-4 5-8

Table 5-4 5-5 5-6 5-7 5-8 6-1 6-2 6-3 6-4 6-5 6-6

Page Attenuator Compensation Ad ju stments . . . Settings for B andwidth Chec ks . . . . . . . . . Settings fo r Timing Accuracy Chec ks . . . . . Settings for Delay Time Accuracy Checks . Switch Combinations for Α Triggering Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R elative Susceptibility to Static-Disc harge Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . External Inspection Chec klist . . . . . . . . . . . Inte rnal Inspection Chec klist . . . . . . . . . . . . Power Supply Limits and R ip ple . . . . . . . . . M ai nte nance Aids . . . . . . . . . . . . . . . . . . . . Trigger Bandwidth Alteration . . . . . . . . . . .

5-9 5-12 5-17 5-18 5-21 6-1 6-3 6-3 6-8 6-11 6-20

2235 Service

O PER ATO R S SA FE TY S UMM A R Y The gen eral safety information in th is part of th e summary is for both operating and servicing personnel. Specific warnings and cautions will be found through ou t the manual wh ere th ey apply an d do not appea r in th is su mmary.

Terms in

Th is Manual

n ts i dentify con d itio ns or practices stateme CA UTION that coul dof resu lt in d amage to the equ ipme nt or other pr operty . WA RN ING state m ents

identify co nd itio ns or practices t h at coul d resu lt i n personal injury or loss of life . Te rms as

M arked

on

E qu ipme nt

CAUTIO N i nd icates α perso n al injury h azard not immed iately accessi ble as one r eads the ma rk ings, or α h azard to property, incl ud ing the equ ipment itself . DA NG ER in d icates α p ersonal i njury hazard imme diately accessible as one reads the ma rking. Symbols in This Manual Th is symbol in dicates wh ere ap plica ble cautio nary or ot her information is to be foun d. F or maximum input voltage see Ta ble 1-1 . Symbols as 114

M ar ke d

on Equi p me nt

DA NG ER - H ig h voltage.

Ο P rotective ground (earth) termin al . ΑΤΤΕΝΤΙΟΝ - Refer to ma nual. Power Source

Th is prod uct is inten d e d to operate from α power so urce that does n ot apply more than 250 volts rms between th e supply con d uctors or between either s up ply cond uctor and groun d . Α protective groun d co n nectio n by way of the grou nding co n d uctor in the powe r cord is essential for safe operation.

Groun d ing the

P rod uct

This produ ct is grou nded t hr ough the groun d ing cond uctor t he p ower cord. To avoid electrical shoc k, pl ug the p ower cord into α properly wi red rece pta ble b efore connecting to the pr oduct i npu t or outpu t terminals. Α p rotective grou nd co nnection by way of the grounding co nductor in t he power cord is esse ntial fo r safe operatio n .

Danger Arising From

Loss of

Groun d

Upon loss of the protective-groun d co nn ection , all accessi ble co ndu ctive parts (incl ud ing kno bs and co ntrols th at may appea r to be in su lati ng) can r end er an electric shoc k.

U se the Proper P ower

Co rd

U se only the power cor d and co nnector specifie d fo r

your p ro du ct .

U se only α power cord t h at is i n good cond itio n. F or detailed i nformation on power cords an d co nn ectors see F ig ur e 2-1 .

U se the P ro per F use

To avoi d fire h azard , use only α fuse of the correct ty pe, voltage rating and cu rrent rating as specifie d in the parts list for yo ur p rodu ct. Do

N ot Operate in E xp losive

Do

N ot R emove Covers

Atmosp heres

To avoi d ex plosion, d o n ot operate th is pro d u ct i n an ex plosive atmosp here u nless it has b een specifically certified for s uch o per atio n. Or

P anels

To avoi d perso nal inj ury, d o n ot remove the pr odu ct covers or p anels . Do not ope r ate th e p ro du ct with out the covers and panels properly i n stalle d.

2235 Service

S ERV ICI NG SA FE TY S UMM A RY FOR QUALIFIED SERVICE PERSONNEL ONL Y Refer also to the preceding Operators Safety Summary. Do

N ot Service Alo ne

Do not p erform internal se r vice or adjustmen t of th is product unless an oth e r person capable of r enderin g first aid a nd resuscitatio n is prese n t.

U se Ca re Wh e n Servici n g W ith Power On

Dangerous voltages exist at seve ral points i n th is product . To avoid pe rso n al i nj ury, do not touc h exposed connectio n s or com p on ents wh ile power is on .

Disco n nect power before removing protective pa n els, solderi n g, or re p lacing com ponents .

P ower So ur ce Th is product is inte nded to ope r ate from α power source t h at does not apply more t h a n 250 volts r ms between th e supply co nd uctors or between eit her supply con ductor a n d grou n d . Α p rotective ground co nnection by way of the grou n d i n g connecto r in t he power cord is essential fo r safe ope ration.

2235 Service

ατο 6-ο 1 T he 2235 Oscilloscope

Section 1-2235 Service

S PE CI FICATIO N I NTRODUCTION

PERFORMANCE CONDITIONS

The TEK TRON IX 2235 oscillosco pe is α rugged , lightweig ht, d ual-channel, 100- MH z instrument that features α b right, sharply defined trace on an 80- by 100-mm cath oderay tu be (crt). Its vertical system provides calibrated deflection factors from 2 mV per division to 5 V per division . Trigger circuits enable stable triggering over the full bandwidt h of the vertical system . The h orizontal system provides cali brated sweep speeds from 0.5 s per d ivision to 50 n s per division along with delaye d-sweep features for accurate relative-time meas urements. Α Χ10 magnifie r extends the maxim um swee p s peed to 5 ns per d ivision.

The following electrical characteristics (Table 1-1) are ναΙid for the 2235 when it h as been adjusted at an am bient temperat ure between +20°C and +30°C, h as had α warmup period of at least 20 minutes, and is operating at an am bie nt temperature between 0°C and +50°C (u nless ot h erwise noted) .

ACCESSOR IES The instrument is shipped with t he following standard accessories : 1 Operators Manual 1 Service Manual

2 Probe packages

F or part numbers and furt her i nfo rmation about both standard and optional accessories, refer to the "Options and Accessories" section (Section 5) of this manual . Your Te ktronix re presentative, local Tektronix Field Office, or Te ktronix prod uct catalog ca n also provide accessories information .

Items listed in the "Performance Requ irements" column are verifiable qualitative or quantitative limits, while items listed in t he "S upplemental Informatio n" column are either explanatory notes, cali bration setup descriptions, perfor mance characteristics for whic h no absolute limits are specified, or characteristics that are impractical to chec k.

Environmental characteristics are give n i n Table 1-2. The 2235 meets the requ irements of MIL-T-288000, paragraph s 4.5 .5.1 .3, 4.5 .5 .1 .4, and 4.5 .5 .1 .2 .2 for Type III, Class 5 equipment, except where otherwise noted.

i

Ph ysical characteristics of the instru me nt are liste d n Τα-

b le 1-3.

Sp ecification-2235 Service Ta ble 1-1

Electrical Characte ristics Ch aracteristics

Performance Requ irements

Supplemental Info rmation

VERTICA L DEFLECTIO N SYSTEM Deflection F actor 2 mV per division to 5 V per d ivision n α 1-2-5 sequence

R ange

i

Accuracy +15°C to +35°C 0°C to +50°C

+2%. ± 3ο/ο.α

R ange of V OLTS/DIV Variable Cont rol

Continuously variable between settings . Increases deflection factor by at least 2.5 to 1 . Rise time is calc ulated from t he for mula :

Step Res ponse

0.35

R ise Time

0°C to +35°C 5 mV per Division to 5 V per Division 2 mV per Division +35°C to +50°C 5 mV per Division to 5 V per Division 2 mV per Division

B and widt h (-3 dB) 3.5 n s or less .' 3.9 ns or less .a 3.9 n s or less .' 4.4 ns or less .a

M easured with 5-division reference

Aberrations Positive-Going Step 2 mV per Division to 0.5 V per Division 1 V per Division to 5 V per Division

+4 ο/ο, -4%,4% ρ-ρ. +12%, -12ο/ο, 12 ο/ο ρ-ρ.α

B andwidth (-3 dB) 0°C to +35°C 5 mV per Division to 5 V per Division 2 mV per Division

Dc to at least 100 MH z. Dc to at least 90 MH z.

+35°C to +50°C 5 mV pe r Division to 5 V per Division .

Dc to at least 90 MHz.'

2 mV per Division

Dc to at least 80 MHz.'

AC Coupled Lower 'Perfo rma nce

5 mV per d ivision to 5 V per division gain is adjusted with V OLTS/DIV switch set to 10 mV per d ivision. 2 mV per d ivision gain is adjusted with VOLTS/DIV switch set to 2 mV per d ivision

Limit

Requirement

10 Hz or less at -3 d B.a

not checked in Service Manual .

signal, centere d vertically, from α 50 Ω source d riving α 50 Ω coaxial cable terminated in 50 Ω at the input conn ector with t he V OLTS/DIV Variable co ntrol in th e CA L detent.

M easu red with α vertically centered 6-division refere nce signal from α 50 Ω source driving α 50 Ω coaxial ca ble that is terminated in 50 Ω, both at the input connector an d at the probe in put, with t he V OLTS/DIV Variable control in the CA L detent .

S pecification-2235 Service Table 1-1 (cont) S Characte ristics

Performance Requirem ents

upplemental Info rmation

VERTICA L DEFLE CTIO N SYSTEM

B andwidth Limiter

Upper limits (-3 dB) bandpass at 20 MHz ± 10% .

Chop Mode Switching R ate

500 kH z ±30% .α

In put Characteristics R esistance

1 ΜΩ ±2%.α

Capacitance

20 p F ±2 ρ F. α

M axim um Safe Inp ut Voltage Α

~ See Fig ure 1-1 fo r de rating cu rve .

DC Coupled

400 V (dc + pea k ac) Or 800 V ac ρ-ρ to 10 kH z or less .α

AC Co up led

400 V (dc + pea k ac) Or 800 V ac ρ-ρ to 10 kH z or less .α

Common-Mode R ejection R atio (C MRR)

At least 20 to 1 at 50 MHz.

Input Current

1 .0 ηΑ Or less (0 .5 division trace s hift at 2 mV per division).α

Trace Shift with Attenuator Rotation

0.75 division or less .α

Trace Shift as V OLTS/DIV Varia ble Control is R otated

1 .0 division or less .α

Trace Shift with Invert

1 .5 division or less .α

Channel Isolation

Greater than 100 to 1 at 50 MH z.

POSITIO N Control R ange

At least ± 11 d ivisio n from graticule ce nter.

8Perfo rma nce

R equ irement

i

not chec ked n Service Manual.

Chec ked at 10 mV per division for common-mode signals of 6 divisions or less with VOLTS/DIV Variable control adj usted for best CMRR at 50 kH z.

V OLTS/DIV Variable co ntrol in CA L

detent.

Specificatio n -2235 Service Ta ble 1-1 (cont)

P erfo rman ce Requ irements

Characteristics

Suppleme ntal Info rmation

TRIGGER SYST EM Α TRIGGER Sensitivity Ρ-Ρ A UTO and NO RM /TV LINE Modes I nternal External

10 MHz 0.3 div 35 mV

Ι

60 MH z

100 MHz

1 .0 div 120 m V

1 .5 d iv 200 mV

Lowest Useable Frequ ency i n Ρ-Ρ AUTO Mode

20 Hz with 1 .0 d ivision internal or 100 mV external .a

TV FIELD M ode

1 .0 division of composite sy nc.a

Β TRIGGER Se nsitivity (I nternal Only)

10 MHz L60 MHz _L100 MHz 0.3

d iv

1 .0 d iv

1 .5 div

ΕΧΤ ΙΝΡ UΤ

M aximum Input Voltage 2L

I nput R esistance

I nput Ca pacitance AC Coupled

400 V (dc + peak ac) or 800 V ac; ρ-ρ at 10 kH z or less (see Fig ure 1-1) .α 1 ΜΩ ± 2% .α 20 pF ±2 .5 p F.a 10 Hz or less at lower -3 dB point .a

LEVEL Control Range Α TRIGGER (N ORM) ΙΝΤ

Can be set to any point of the trace that can be d isplayed.a

ΕΧΤ, DC

At least ± 1 .6 V, 3.2 V ρ-p.

ΕΧΤ, DC - 10 Β T R IGG ER

I n ternal

VAR H OLDO FF Control

At least ± 16 V, 32 V ρ -ρ.α Ca n be set to any point of the trace that can be displayed .α Increases Α Swee p h oldoff time by at least α factor of 10 .α

Trigger V iew System Deflection Factor Internal

Same as vertical .

Extern al AC and DC

100 mV pe r division.

DC - 10

1 V per division .

Accu r acy

±20% .

Delay Differe nce B etween ΕΧΤ INPUT and Eit her Vertical Channel

Less than 2.0 ns.a

°Performa nce Req uirement n ot chec ked in

Service Manual .

Exter n al trigger signal from α 50 Ω source driving α 50 Ω coaxial ca ble te rmi nated in 50 Ω at the i nput co nn ector.

S pecification-2235 Service Ta b le 1-1 (cont)

Perfo rma n ce Req u i r eme nts

Cha racte r istics

Supple m ental Information

H O R IZONTAL D EFLE CTION SYST EM Sweep

R ate

Cali b rated R an ge Α Sweep

0.5 s p er division to 0.05 As per division in α 1-2-5 sequence. Χ10 magnifier extends maximum sweep s pee d to 5 ns p er division.

Β Swee p

50 ms per d ivision to 0.05 As p er division in α 1-2-5 sequence . X10 magnifier exte nds maximum sweep spee d to 5 ns per division.

Accuracy

Un magnifie d

Magnified

+15'C to +35°C 0°C to +50°C POSITIO N Control Range

Start of swee p to 10th division will position past the center vertical graticule li ne in Χ1 or 100th division in X1 0.

Swee p Linearity

±5%.

V ariable Control Range

Continuously variable between cali brated settings . Extends the Α an d Β sweep speeds by at least α factor of 2.5 .

Swee p Le n gt h

Greater than 10 division .

Α/ Β SWP SEP Range

±3 .5 d ivisio ns or greater.

Delay Time

Applies to 0.5 As pe r divisio n an d slower.

Dial Co ntrol R ange

10 d ivisions .

J itter

One part or less in 20,000 (0.005%) of the maximum availa ble delay time .

Sweep accu racy applies over the center 8 d ivisio ns. E xclude the first 25 n s of the sweep for magnified swee p speeds and anything beyond the 100th magnified division .

L inearity meas ure d over any 2 of the ce nter 8 d ivisio ns. W ith magnifier in Χ10, exclude the first 25 ns and anything past the 100th division.

Delay time is functional but not cali brated at swee p settings above 0.5 As pe r division.

E xclu de delayed o peration when Α and Β

Differential Time Measurement Accuracy +15'C to +35'C

± 1 ο/ο +0 .015 major dial division

0°C to +50°C

±2 ο/ο +0 .015 major dial division .'

'Perform ance Requirement n ot ch ec ked in Service Manual .

SE C/DI V kno bs are locked together at a ny sweep speed or when Α SE C/DI V switch is at 0.5 As per division or faster. Accuracy applies over t he Β DE LAY TIME P OSITIO N co ntrol ra nge .

Specificatio n-2235 Service Ta ble 1-1 (cont) Characte ristics

Performa nce R equ irements

Suppleme ntal Info rmation

Χ-Υ OPERATIO N (Χ 1 MAG NIFICATIO N) Deflection Factors

Same as Vertical Deflection System (wit h VOLTS/DIV Varia ble co ntrols in CAL dete nt).

M easured with α dc-coupled, 5-division

Accuracy

reference signal .

Χ-Axis +15°C to +35°C

±3%.

0°C to +50°C

± 4ο/ο.α

Υ-Axis

Same as Vertical Deflection System .a

Bandwidth (-3 dB) Χ-Axis Υ-Axis

Ph ase Difference Between Χ- a nd Υ-Axis Amplifiers

Measured with α 5-division Dc to at least 3 MHz. Same as Vertical Deflection System .a

±3 ο from do to 150 kH z.a

reference signal .

With dc-cou pled inputs .

PROBE AD JUST

Output Voltage of PROBE AD JU ST J ack

0.5 V ± 5ο/ο.

Repetition R ate

1 kHz ±20ο/ο.α Z-AXIS INPU T

Se nsitivity

5 V causes n oticeable modulation . Positive-goi ng inp ut decreases i ntensity.

M aximum Safe Input Voltage

30 V (dc + peak ac) or 30 V C ρ-ρ ac at 1 k Hz or less .a

Input R esista nce

10 k Ω ± 10 ο/ο.α PO WER SO UR CE

Line Voltage R anges

90 V to 250 ν.α

Line Frequ ency

48 Hz to 440 Hz .a

M axim um Power Co nsumption

40 W (70 νΑ).α

L ine Fuse

1 .0 Α, 250 V, slow- b low. CATHODE-RAY T UBE

Display Area

80 by 100 mm .a

Standard Ph osphor

Ρ31 .α

Nominal Accelerati ng Voltage

14 kV .a

° Perfo rmance Requ irement not chec ked

in Service Manual .

Useable frequency r ange is do to 20 MHz.

S pecification-2235 Service VO L TS (DC PLU S PEAK AC)l 400

300 200

100

50

)2 .5 ν

l

20

10

10 KH z

50 KH z

100 ΚΗτ FRE Q UEN CY

500 ΚΗτ

1 MH z

100 MHz 4207-28

Figu re 1-1 . Maxim um inpu t voltage vs. fre que ncy d e rati ng cu rve for CH 1 OR Χ , CH 2 O R Υ , and ΕΧΤ INPUT connectors.

Specification-2235 Service Ta ble 1-2 Environmental Characte ristics

C h a racteristics

Descri ption ΝΟΤΕ The instrument meets th e requiremen ts of MIL-T-288000, paragraphs 4.5.5 .1 .3, 4.5.5.1 .4, and 4.5 .5.1 .2.2 for Typ e ΙΙ/, Class 5 eq uipmen t, excep t wh ere otherwise noted.

Temperat ure Operating

0°C to +50°C (+32 0 F to +122°F).

N onoperating

-55°C to +75°C (-67° F to +167° F). Tested to ΜΙ L-Τ-288000 paragra ph s 4.5 .5 .1 .3 and 4.5 .5 .1 .4, except in 4.5 .5 .1 .3 steps 4 and 5 (0°C operating test) are p erformed a head of step 2 (-55°C nonoperating test). E quipment shall remain off upon return to room am bient during step 6. E xcessive cond ensation s hall be remove d before operating duri ng step 7.

Altitude Operating

To 4,500 m (15,000 ft). M aximum operating temperature decreased 1 °C per 1,000 ft above 5,000 ft .

N onoperating

Το 15,000 m (50,000 ft).

Hu midity (O perating and N onoperating)

5 cycles (120 hours) refere nce d to ΜΙ L-Τ-288000 p aragra ph 4.5 .5 .1 .2 .2 for Ty pe III, Class 5 instruments . Operating and non-operating at 95% +0% to -5% relative h umidity. Operating at +50°C and +30°C. Non-operating at +30°C to +60°C.

Vibration (O perating)

15 minutes along each of 3 major axes at α total displacementof 0.015 inch ρ-ρ (2 .4 g's at 55 Hz) with frequency varied from 10 Hz to 55 Hz to 10 H z in 1-minute sweeps . H old for 10 minutes at 55 H z in each of the 3 major axes . All major resonances must be above 55 H z .

Shock (Operating and N o n operati ng)

30 g's, half-si ne, 11-ms du ration, 3 shocks p er axis each direction, for α total of 18 s h oc ks.

EMI

M eets radiated a n d conducted emission re qu irements per VDE 0871 Class Β.

Specification-2235 Service Table 1-3 Physical Characteristics Characteristics

Description

Weight With Power Cord With Cover, Probes, and Pouch

7.1 kg (15.7 lb).

Without Cover, Probes, and Pouch

6.1 kg (13.5 lb).

Domestic Shipping Weight

8.2 kg (18.0 lb).

Height With Feet and Handles

137 mm (5 .4 in).

Width With Handle

360 mm (14.2 in).

Without Handle

327 mm (12.9 in).

Depth With Front Cover

445 mm (17.5 in).

Without Front Cover

440 mm (17.3 in).

With Handle Extended

511 mm (20.1 in).

Section 2-2235 Ser vice

O PER ATI N G I N STR U CT I O N S PREPARATION FOR USE SA FE TY

Plug Configuration

Refer to the "Operators Safety Summary" at the front of this manual for power source, grounding, an d other safety consi d erations pertaining to the use of the 2235 . B efore connecting the instrument to α power source, carefully read the following information about line voltage, power cor d , and fuse .

ANSI

Usage

Voltage

Reference Stan dards

N um ber

N orth American

120V

C73.11 ΝΕΜΑ 5-15-Ρ

Standar d

240V

C EE 133 (7},II,IV. VII

Α1

240V

Θ5 1363 IEC 83

Α2

240 ν

AS C112

Α3

240V

ANSI ς73 .2ρ ΝΕΜΑ 6-15- Ρ

Α4

2201

SEV

Α5

120Α/

I

Euro 240V/

240V/ 13 Α

VOLTAGE

Austra ι ian

240Α/ 10Α

input voltages that range from 90 V to 250 V nominal at frequencies from 48 Hz to 440 Hz .

N orth

American 240V/

WER

O

Α detachable three-wi re

i

CO

p ower

15 Α

RD

cord with α th ree-co ntact

p l ug is provided with each nstru m ent to permit connection to both the power source and protective ground . The pro-

tective-ground contact in the plug connects (through th e protective-ground con ductor) to the accessible metal parts of the instrument . For electrical-shoc k protection, insert this plug only into α p ower-source outlet that has α properly grounded protective-groun d contact . Instruments are shippe d with t he required power cord as ord ere d b y the customer. Available power-cord information is presente d in Figure 2-1, and part numbers are liste d on

the "Accessories" page at the back of this manual- Contact your Tektronix representative or local Tektronix Field Office for a d ditional power-cord information .

L I NE FU S E The instrument fuse holder is located on the rear panel (see Figure 2-2) an d contains the line fuse. The following proce d ure can be used to verify that the p roper fuse is in stalled or to install α replacement fuse .

Ι

10-16Α

This instrument is capable of continuous operation with

P

Ι

I EC 83

Option

Universal

UK

L NE

Line

Switzerland

220Υ/ 6Α

I EC

I EC 83

Abbreviations :

ANSI - American Natio nal Standards Institute Α5 - Standar ds Association of Australia Β5 - Britis h Standar ds Institution ςΕΕ - International Commission on Rules for the Approval of Electrical Eq ui pment I EC - Inter national Electrotechnical Commission ΝΕΜΑ - National Electrical Manufacturer's Association S EV - Sc hweizevisc her Eιektrotechischer Verei ο

2931-21

Figure 2-1 . V oltage, pow er cord, an d fuse d ata. 1 . Unplug the power cord from the power-input source (it applicable) . 2. Press in an d slightly rotate the fuse-hol der cap counterclockwise to release it . 3 . Pull the cap (with t he attached fuse insi d e) out of the fuse holder. 4. V erify proper fuse value (see Figure 2-1) .

Op erating

I nstructions-2235 Service

5. R einstall th e fuse (o r r eplacement fuse) and the fuseh olde r ca p.

LI N E FUSE

CA UTION CσΝΤιΝυεσ

FOR FIRE PRCTECTION R EPLA C E ONLY WITH SPE CI F IE D TYPE AN Ο RATED FUSE . σ 1SCO NNECT POW ER INPUT BEF ORE ΑΣΡιΑςιΝ G FU S E L IN E VO LTA G E R AN GE 9015 ΟΥΑ [

DO NOT REM O V E COV E R . R EFER 5 ERV I[I N G TO COAL IF I ED ΡΕΟS ΟΝΝ FL .

FUSE 250V ΙΑ SLOW

I NSTRUMEN T COO LI N G

CAUTION

TO AVOID ELECTRIC SHOCK THE POWER CORO PROTECTIVE GROUNDING CONDUC70 π4111T BE CONNECTED ι tρυΝυ .

Always maintain adeq uate instru ment cooling . The ve n tilation holes on bot h side of t h e equi pment cabinet and on t h e rear p a nel must remai n free of obstructions .

L AXIS INPUT GOING ΙΝΡυΤ O FCAEΑS ES '-'- INTENSITY 5 VOLT Ρ - Ρ CAUSES ' 1 N OTIC E A BLE : ΜΟσ U ΙΑΤΙΟΝ ΑΤ ~ N OR M A L ΙΝΤΕΝ5 ΓΤΥ . ° -310V PEAK

ισχα Ρσsιτινε ιαι

POWER ΜΑ%

WATTS



ΜΑΧ VA 70 FF Ι1 45 - 440 Η ;

POWER CORD 4207-03

Figure 2-2. Fuse hol d e r and power cord connecto r.

CO N T RO L S, CO NNE CTO R S, A N D I NDICATO RS The following descri ptions are intended to familiarize the operator with t he location, operation, and function of the instrument's controls, connectors, a nd ndicato rs.

i

POWER, DISPLAY, AND PROBE ADJU ST Refer to Figu re 2-3 fo r location of items 1 th ro ug h 8. Internal Graticule-Eliminates parallax viewing error between the trace an d graticule lines . R ise-time am p litu d e an d meas urem ent points are indicated at the left e d ge of the g ratic u le . POWER Switch--Turns instrument power on and off. Press in for ON ; press again for OF F.

Ο

2-2

Power Indicator-An LE D that illuminates when power is availa ble to the instrument and the PO WER switch is set to ON (bu tton in).

ΟFOCUS 4 Control-A djusts d efi n ition.

far

optimum

display

PRO B E AD JU ST Connector- Provides an approximately 0.5 V, negative-going, square-wave voltage (at a pproximately 1 kH z) that perm its an operator to compensate voltage probes and t he chec k operation o f t h e oscilloscope vertical system . It is not in tended to verify t h e accuracy of the vertical gain or ti me-base circ uitry . BEAM FI ND Switch -Wh en held in, co mpresses the d isplay to within the graticule area and provi d es α visible viewing in te nsity to ai d in locating off-screen displays . TR AC E ROTATION Control-Screwdriver adju stmen t used to align the crt trace with t he h orizontal graticule lines .

Operating Instructions-2235 Service

2235 , ο

Tdd roni c

ο ο ο

ο

4207-04

F igure 2-3 . P ower, display, and probe adjust co ntrols, conn ector, and indicator.

Α an d Β INTENSITY Co ntrols- Deter mi n e the brightn ess of the Α an d t he Β Sweep traces .

0 MHz OSCILLOSCOPE

VER TICA L R efer to Figure 2-4 for location of items 9 thro ugh 18 .

CH 1 V OLTSIDIV a nd CH 2 VOLTSIDIV SwitchesUsed to select the vertical deflection facto r i n α 1-2-5 se quence . To obtain α cali brated d eflection factor, the VOLTSIDIV variable control must b e in the cali brate d (CAL) detest (fully clockwise). 1 Χ-I ndicates the deflection factor selected wh en using either α 1 Χ p robe or α coaxial cable. 10 Χ PR OBE-Indicates the deflection factor selected when using α 10 Χ probe. V OLTSIDIV Variable Controls-When rotated coun-

terclockwise out of their cali brate d detest positions, these co ntrols provide co ntinuously variable, uncalibrated d eflection factors betwee n t h e calib rated settings of the VOLTSIDIV switches .

4207-05

Fig ure 2-4. Vertical co ntrols and connectors.

O perati ng I n st ru ctio n s-2235

Service

CH

1 OR Χ and CH 2 OR Υ Co nnecto rs- P rovi de for app lication of external sig n als to th e i nputs of t h e ver-

sweep. Th e switc hing rate is app roximately 500 kH z. Th is mo d e is usefu l for viewing both h a n nel

C

tical deflection system or for an Χ-Υ display. In the ΧΥ mode, the signal conn ected to the CH 1 OR Χ con n ector provides horizontal deflection, and the signal connected to the CH 2 OR Υ connector provides vertical d eflection.

1 and Channel 2 input signals at swee p speeds fr om 0.5 ms per division to 0.5 s per division. TR IG V I EW -Press in and h ol d th is push button to display α sample of the signal present in the Α Trigger amplifier (for all Α SO UR CE switch settings). All ot h er signal displays are removed while the TRIG V IEW Pu sh button is h eld in .

In put Coupling (AC-GND-DC) Switches-Used to select the method of coupling inp ut signals to the vertical deflection system .

BW LIM IT-Wh en p ressed in, this pu sh-button switch limits the b andwidt h of the vertical am plifier an d t he Α Trigger system to app roximately 20 MHz. Pus h button mu st be pressed α secon d time to release it and regain full 100 MH z band widt h operatio n. Provides α method for reducing interferen ce from h ig h-fre qu e ncy signals when viewing low-frequency signals .

AC-Inpu t signal is capacitively co up led to the vertical amplifier. The do component of the input sigηαΙ is b locked . Low-fre qu ency limit (-3 Db poi nt) is app roximately 10 Hz. G ND-The input of the vertical am plifier is grou nded to provide α zero (groun d) r eferen ce-voltage display (does n ot groun d the input sig nal). This switch 15 position allows prechargi ng t h e input coupling capacitor.

POSITIO N Co ntrols- Used to vertically p ositio n t he display on the crt. Wh en the S E C/DI V switch is set to Χ-Υ, the Channel 2 POSITIO N control moves the display vertically (Y-axis), and the H orizo ntal POSITIO N control moves the display horizontally (X-axis) .

DC-All freq uency components of th e input signal are coupled to the vertical deflection system . 13 INVER T Switch-Inverts the Channel 2 d isplay when button is p ressed in . Pu sh button must be p ressed in α second time to release it and regain α noninverted display. 14 VERTICA L MOD E Switches-Two three- position switches and two pus h-bu tton switches are u sed to select the mode of operation for the vertical am plifier system . CH 1-Selects only the Channel 1 in put sign al for display. BOTH-Selects b oth Ch ann el 1 and Channel 2 input signals for d is play. T he BOTH position must be selected for either ADD, ALT, or CH OP Operatio n.

16 GND Connecto r-Provides direct connection to the instrument c h assis grou nd . 17

SER IA L an d Mod Slots-The SER IA L slot is im printed with t h e in strument's serial n umber . The M od slot contai ns any option number that is installed i n t he inst ru ment .

H ORIZONTAL R efer to F igure 2-5 for location of items 18 thr ough 24 .

18 Α an d Β SEC/DI V Switches-U sed to select the sweep speeds fo r t he Α and Β Swee p Generator in α 1-2-5 sequence . To obtain cali brate d sweep speeds, th e Α and Β SEC/DI V Variable co ntrol must be in the CH 2-Selects only t he Channel 2 in put signal fo r cali brated detent (fully cloc kwise). display. Α S E C/DI V-T he cali brated swee p speed is ADD-Disp lays the algebraic sum of the Chan nel 1 shown between the two black lines on t he clear and Channel 2 inp ut sig nals. plastic skirt. This switch also selects the delay time for delayed-sweep operatio n when used in conALT-Alternately disp lays Channel 1 and Chan nel junction with the Β DELAY TIME P OSITION 2 in put signals. The Alteration occurs du ri ng recontrol . trace at the end of each swee p. Th is mode is useful for viewing both input s'ιgnals at swee p s peeds Β SEC/DI V-T he Β -Sweep s peed is set by pu lling from 0.05 Ειs p er division to 0.2 ms per division . out th e (D LY'D SWEEP PULL) knob and rotati ng it cloc kwise to α setting opposite the white line CHOP-T he d isplay switches between the Chanscribed on the k nob. The Β Sweep circuit is used nel 1 and Channel 2 input signals duri ng the only fo r d elayed-sweep operation.

2- 4

O perating Instructions-2235 Service

10, POSITION

VER TICA L MODE --'; ALL TRIG WE- AW LΙΜΙΤ CH1 VOLTS

/DΙΥ

Γσχ εχσ~ε

ALI

11

VOLTS/01V' ιχνεκΤ CH 2 ,_,

 s~_rΡσσε "

Figure 2-5. Horizontal co ntrols.

Α and Β SE CIDI V Variable Control -Provides continuously variable, u ncalibrated Α Sweep sp eeds to at least 2.5 ti mes the calibrated setting. It extends the slowest sweep s peed to at least 1 .25 s per d ivision .

Χ10 M agnifier Switch-To i n c r ease displayed swee p sp ee d by α factor of 10, p ull out the Α and Β SE CIDI V Variable k no b. The fastest sweep spee d can be extended to 5 ns per d ivision . Push in the Α an d Β SE CIDI V Varia ble knob to regain the Χ1 sweep s pee d. HORIZONTA L MOD E Switch-T his three-position switch determi nes the mode of operation fo r t he h orizontal d eflection system . Α-Horizontal d eflectio n is provided by t h e Α Sweep ge nerator at α swee p s peed determi ned b y the Α SECIDI V switch setting. ALT-Alternates the horizontal d isplays bet ween the Α Swee p (with an intensified zo ne) and the Β Delaye d Swee p. The Α Sweep s peed is d etermined b y the setting of the Α SE CIDI V switch . The Β Sweep speed and t he length of the intensifie d zone on the Α Swee p a re both determine d by the Β SECIDI V switch setting .

B--Horizontal d eflection is provid e d by the Β Sweep ge nerator at α sweep spee d determined by th e Β S E CIDI V switch setting. The start of the Β Swee p is delayed fro m t h e start of the Α Sweep by α time d etermi ned by the settings of both t he Α SECIDI V switch an d t he Β DELAY TIME POSITION co ntrol . ΑΙΒ SWP SEP Control- Vertically positions the Β Sweep trace with respect to the Α Sweep trace when ALT H ORIZONTA L MOD E is selected . Β DELAY TIME POSITIO N Control-Selects the amount of delay time between the start of the Α Sweep and the start of the Ι3 Swee p. Delay ti me is variable from 0.5 times to 10 times the Α SE CI DIV switch setting . POSITIO N Control- Horizontally positions both the Α Sweep an d t he Β Sweep d isplays and ho rizontally p ositions X-axis in the Χ-Υ mo de.

O perating Instructions-2235 Service IN-When push button is presse d in, s w eep is triggered from the negative-going slope of the trigger signal .

TRIGGER Refer to Figure 2-6 for locations of items 25 through 34 .

TRIGGER Mo d e Switches-Three p ush-button switches that determine the trigger mode for the Α Sweep . SGL SWP RESET-Press in

push

the

bu tton momentarily to arm the

cuit fo r α si ngle-sweep t he same as

N ORM,

d ispl ay . This

spring-return Α Swee p ci r-

ιι FA

:

mode operates

except only one sweep is

d is-

played for each trigger signal . Another sweep cann ot be d isplaye d u ntil the SGL SWP RESET Push bu tton is momentarily presse d in again to reset the Α Sweep circuit. This mode is useful for displaying and p hotographing either nonrepetiti υe signals or signals that cause unstable conventional d ispl ays (e .g ., signals that vary in amplitud e, shape, or time). Ρ-Ρ AUTO-TV LINE-Permits triggering on waveforms h aving r epetition rates of at least 20 H z and television lines. Sweep free-runs in t he absence of an adequate trigger signal or when the repetition rate is below 20 Hz. The range of the Α T RIGGER L EVEL control is restricted to the peak-to-peak range of the trigger signal . NORM-Sweep is initiated when an a d equate trigger signal is applied . In the absence of α trigger signal, no baseline trace wil l be present. TV FIELD-Press in both Ρ-Ρ AUTO an d N ORM push b u ttons. Permits triggering on television field signals . TRIG'D READY Ind icator-T h e L ED i l luminates when eith er the Ρ-Ρ AUTO or the NORM Trigger Mod e is se lected to indicate that the Α Sweep is triggered (TRIG'D). When t he SG L SWP RESET button is momentarily pressed in, the LED illuminates to indicate that the Α Trigger circuit is armed (READY) for α single-sweep display. Α TRIGGER LEVEL Control-Selects the amplitude p oint on the trigger signal at which t he sweep is triggered . 28 SLOPE S w itches-Select the slope of the signal that triggers the sweep. OUT-Wh en push button is rel eased out, sweep is triggere d from the positive-going slo p e of the trigger signal .

4207-07

Figure 2-6. Trigger controls, connector, and indicator. 29 Α SOURCE Switch-Determines the source of the trigger signal that is coupled to the inpu t of the Α Trigger circuit. ΙΝΤ-P ermits triggering on signals that ar e applie d to the CH 1 OR Χ an d C H 2 OR Υ input cοηπeεtors . The source of t h e internal signal is selected by the Α & Β ΙΝΤ switch .

L INE-Selects the p ower -source waveform as the source of the trigger signal . This trigger source is useful when vertical-input signals are time related (multiple or submultiple) to the frequency of the power-source voltageΕΧΤ-Permits triggering on signals applied to the ΕΧΤ I N PUT connector. 30 Α & Β ΙΝΤ Switch-Se l ects the source of the intern al trigger signal when the Α SO U RCE switch is set to INT. CH 1-The signal applied to the CH 1 OR Χ input connector is the source of the trigger signal .

Operating Inst ructions-2235 Service

REA R PA NEL

V ERT M ODE-The inte rnal trigge r source is deter-

mi ned by the signals selected for display by the VERTICA L MODE switches . CH 2-The sig n al applied to the CH 2 OR Υ i np ut conn ector is the source of the trigger signal . Α ΕΧΤ CO UPLI NG Switch-Determines the method used to couple external signals to the Α Trigger circ uit from the ΕΧΤ I NPUT connecto r. AC-Sig nals above 60 Hz are capacitively coupled to the input of the Α Trigger circ uit . Any d o components are blocked, and signals below 60 Hz are atte nuated. DC-All components of the signal are coupled to the input of the Α Trigger circ uitry . This position is useful fo r displayi ng low-frequency or low-repetition-rate signals . DC - 10-External trigger signals are atte nuated by α factor of 10 . All components of the signal are cou ple d to th e input of t he Α Trigger circu it . ΕΧΤ I NPUT Co nnector-Provi des α means of introduci ng external signals into the Α Trigger circ uit thro ugh t he Α ΕΧΤ CO UP LING switch.

R efer to Figure 2-7 fo r location of item 35 .

ΕΧΤ Z-AXIS Connecto r-P rovides α means of connecting exte rn al signals to th e Z-axis amplifier to intensity mo du le the crt d isplay. Applied signals do not affect d isplay waυes hape. Signals with fast rise times and fall times provide the most abru pt intensity change, and α 5 V ρ-ρ signal will produce noticeable mo dulation. The Z-axis signals must be time-related to the d isplay to obtain α stable presentation on the crt.

1

CAUTION

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Β TR IGG ER LEVEL Control-Selects the amplit ud e

p oint on the trigge r signals at which the swee p is triggered. When fully cloc kwise ; (β R UN S A FTER DLY), the Β Sweep circuit runs im mediately following the delay time selected by the Α S ECIDI V switch and the Β D ELAY TIME POSITION co nt rol . VΑR HO L DO FF cont rol-Provides co nti n uous control

of ha λdoff time between swee ps. Increases the holdoff time by at least α factor of 10 . Th is contro l improves the ability to trigger on aperiodic sign als (such as co mplex digital waυeform s) .

α2 ο7- οα F ig ure 2-7. R ear- panel connector.

Operating Instructions-2235 Service

O PER ATI N G CO N SI DER ATIO N S T he following basic operating information a n d techniques should be co n si d ered before atte m pting to ma k e any measurements with yo ur instrume nt. G RATICULE The gratic ule is internally marked on the face p late of th e crt to enable accurate measurements without p arallax erro r (see Figu re 2-8) . It is ma rked with eight vertical and te n horizo ntal major divisions. E ac h major division is d ivid e d into five subdivisions . The vertical deflection factors and horizontal timing are calibrated to the graticule so t h at accu rate measurements can be mad e d irectly from the crt. Also, percentage markers for the meas urement of rise and fall times are locate d on the left side of the graticule.

G R OUNDI NG The most r eliable signal measurements are mad e when t he 2235 and the unit under test are connected by α common reference (groun d lea d ), in a dd ition to the signal lea d or probe. The probe's groun d lead provides the best grou ndi ng method for signal interconnection a nd ensures the maximum amount of signal-lea d shielding in the probe cable . Α separate groun d lead can also b e connecte d from the unit under test to the oscillosco pe GN D connector located on the front p anel .

SIG NAL CONNECTIONS Generally, probes offer the most convenient means of connecting an input signal to the instrument . They are shiel d e d to prevent p ickup of electromagnetic interference, an d t he su pplie d 10 Χ p robe offers α h igh input imped ance that minimizes circuit load ing . This allows the circ uit u nder test to operate with α minimum of change fro m its no rm al cond itio n as meas u reme nts a re being mad e. Coaxial cables may also be used to connect signals to the input con nectors, but they may have co n si d erable effect on the accuracy of α displayed waveform . To maintain the original freq uency characteristics of an applied signal, only h ig h-quality, low-loss coaxial ca bles shoul d be u sed . Coaxial cables s h oul d be te rmin ated at bot h en ds in th ei r c h a r acteristic impe d ance . If this is not possible, use suitable imped ance-matc hing d evices .

I ST O R LEFT VE R TICA L G RATICU LE LINE

11TH O R RIG HT VERTICA L G RATIC ULE LIN;E/ . .

. .

. .

90

RIS E AND FALL TIME M EASU REMENT PERCENTAGE M ARKER S

CEN TE R VERTICAL GRATIC ULE LINE

C EN TE R H O R IZO N TAL GR ATIC ULE LI N E

4207-09

Figure 2-8. Graticule measur emen t mark ings .

I NPU T COUPL ING CA PACITO R PRE C HAR GI NG Wh e n t h e inp ut coupli ng switc h is set to GN D, the input signal is connecte d to ground thro ugh t he input coupling capacitor in se ries with α 1 ΜΩ resistor to form α precharging network. Th is network allows th e input coupli ng capacitor to ch arge to the a verage d c-voltage level of the signal applied to the probe. Thu s any large voltage transients that may accidentally be ge nerated will not be app lied to the am plifier i np ut when t he input coupling switch is move d from G ND to AC . The precharging networ k also provides α meas ure of protection to the external circuitry by re d ucing the current levels that ca n be drawn fro m the ex ternal ci rcuitry during ca pacito r chargi ng. Th e following procedu re should be use d whenever the probe ti p is con n ected to α sign al sou rce having α different do level th an t hat p reviously ap plied , es pecially if the dc-

Operating Inst ructions-2235 Service level difference 3 is more than 10 times the VOLTS/DIV switch setting :

1 . Set t h e AC-G N D-DC switch to GND.

. Con n ect th e p ro be tip to the signal so urce an d wait several seconds for the input coupling capacitor to c h a r ge .

4. Set th e AC-G ND-DC switch to AC . The display will remain on t h e screen, and the ac component of the sign al can be measured in the no rmal mann er.

2. In sert th e pro be tip into the oscilloscope GND co nnector an d wait several seconds for the input coupling ca pacitor to disc harge .

O PERATOR'S ADJU STMENTS

I N TR OD U CTIO N Two adjustments should be performed before ma king measurements with your oscilloscope : Trace Rotation and Probe Compensation . B efore starti ng either of these ad justments, set the instrument co ntrols and obtain α b aseline trace as describe d under " Baseline Trace" on th e next page. Allow the instrument to warm up for at least 20 mi nutes when specified in t he proce dure.

TR AC E R OTATIO N 1 . U se the Channel 1 POSITION control to move the baseline trace to the ce nter h orizontal graticule line .

ΝΟΤΕ

Normally, the res ulting trace will be pa rallel to the cen ter horizontal graticule line, an d the Trace Rotation a djustment should not be re quired. 2. If the resulting trace is not parallel to the center h orizo ntal graticule line, use small flat-bit screwdriver to ad ju st the TRAC E ROTATIO N con trol and align the trace with the center h orizontal graticule li ne.

PR OBE CO MPEN SATIO N M isadjustment of probe com pensation is one of the source of measu rement error. M ost attenuator p robes are equ ipped with α compensation adjustment. To ensure optimum measureme n t accuracy, always compensate the oscil-

loscope probes b efore making measurements . compensation is accomplished as follows:

Probe

1 . Connect the two 10 Χ probes (s upplied with t he instrument) to the CH 1 an d CH 2 in put co nn ectors . 2. Set b oth VO LTS/DIV switches to 0.1 (10Χ PR O BE) and set bot h AC-G N D-DC switches to DC .

3. Select CH 1 VERTICA L MOD E and insert the ti p of the Channel 1 p ro be into the PR OBE AD JU ST output j ac k. 4. Obtain α d is play of th e PR OBE ADJU ST signal (approximately 1 kH z sq uare-wave) by following steps 3 throug h 6 under "Signal Display" on the next page .

5. Check t he waveform presentation for overshoot and rolloff (see Figure 2-9) . If necessary, adjust the probe compensation for flat tops on t he waveforms. Refer to the instructions supplied with th e p robe for details of compensation adjustment. 6. Disconnect the Channel 1 probe ti p, select CH 2 VERTICA L MOD E, an d co nnect the C hannel 2 pro be tip to the PR OBE AD JU ST Output j ac k. 7 . R epeat steps 4 and 5 for t he Channel 2 p ro be. 8. Disconnect the Ch a nnel 2 probe tip.

Operating Instructio n s-2235 Service

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4207-11

F ig ur e 2-9 . Probe compensation,

OSCILLOSCOPE DISPLAYS INT R OD U CTIO N

Horizontal

The proce d u re in this section will allow you to set up and operate yo ur in st r u men t to obtain t he most commo n ly used oscillosco pe display. 0

ΑΙΒ SWP SE P POSITION HO RIZONTA L MOD E Α an d Β SECIDI V SECIDI V Variable Χ 10 M ag n ifier Β DELAY TIME POSITION

B AS EL I NE T R AC E

Off mi drange M i drange Α .5 ms CA L d etent Off (k nob in) Fully coun terclockwise

1 . Set the instru me n t front-panel controls as follows:

Β

Display

I NTEN SITY

FOCU S

S LO PE

As desi red Best focused d isplay

V ertical (Bot h C h a nn els) POSITION M i d range VERTICA L M OD E CH 1 ΒW LI MIT Off (button out) VO LTSIDIV 50 m V O LTSIDIV Variable CA L d etent INVERT Off (bu tton out) AC-GND-DC AC

TRIGGER LEVEL

Α

OUT Fu lly cloc kwise

T RIGGER VAR HO LDO FF Mo d e

NORM Ρ-Ρ AUTO

LEVEL Α&Β ΙΝΤ Α SO UR CE Α ΕΧΤ CO UPLING

Mi d range V ERT MOD E

S LO PE

OUT ΙΝΤ AC

Operating Instructio ns-2235 Service 2. Press in the POWER switch butto n (on) and allow the instrument to warm up or at least 20 minutes .

I

3 . Pull out the SEC/DI V Varia ble k no b (Χ10) to obtain sweep magnification .

3 . Ad just the Α NTEN SITY control for desired display brightness.

4. Adjust the H orizo n tal POSITIO N control for precise positioning of the magnified display .

5 4. Ad just b oth t he Vertical and Horizontal POSITIO N controls to center the trace on the screen.

. To calc ulate the magnified sweep spee d, d ivide the Α SEC/DI V switch setting b y 10 .

SIGNAL DISPLAY

DELAYED-SWEEP DISPLAY

1 . Obtain α b aseline trace.

1 . Obtain α Signal Display.

2 . Apply α signal to either vertical-c hannel in put connector and set the VERTICA L MOD E switch to d isplay the channel used . To display two time-related input signal, use bot h vertical-c hannel input co nnectors and select BOTH VERTICA L MOD E ; then select either ALT or CH OP, depending on the frequency of input signals.

2. Select ALT HORIZONTA L MOD E. Adjust the Α and Β NTEN SITY controls for desired display b rightness.

I

3 . Adj ust t h e appro priate channel POSITIO N co ntrol and the Α/Β S WP SEP control to d isplay the Α trace above the Β trace.

3 . Adjust the Α I NTEN SITY control for desired display brig h tness. If the display is not visi ble with the I NTEN SITY midrange, p ress the BEAM F IND pu sh button an d control at4 hold it in while adjusti ng the app ropriate V O LTS/DIV switch (es) to reduce the vertical d isplay size . Ce nter the compressed display within the graticule area u sing t he Vertical and H orizontal POSITIO N control, then release the

th e intensified zone distinguis hable from the remainder of

4. Adj ust th e Α TRIGGER LEVEL co ntrol, if necessary, to

5. Adjust th e Β DELAY TIME POSITIO N control to move the intensified zone to cover that p ortion of the Α t race that is to be d isplayed on the Β trace. The Β HORIZONTA L M OD E may be used to display the intensified portion of the Α Swee p.

BEAM FIND push bu tton .

obtain α stable d is play.

5. Set the ap pro priate V OLTS/DIV switches) and readjust th e Vertical and H orizontal POSITIO N controls to ce nter th e d isplay within t he gratic ule area . 6. Set the Α SEC/DI V switch to d isplay seve ral cycles of the d is played signal . Then adjust the FOC US control for the best-defined display.

M AGN IFI ED-SWEEP DISPLAY 1 . Obtain α Signal Display (see

p receding instructions).

2. Ad just the Horizontal POSITIO N control to move the trace area that is to be magnified to the center of t he crt graticule (0.5 division on each side of the ce nter vertical gratic ule line). Change the Α SEC/DI V switch setting as required.

I

. Ad j ust the Α NTEN SITY co ntrol as needed to make

th e display. Set the Β S EC/DI V switch until the intensified zo ne is the desired length.

DELAYED-SWEEP MEAS UREMENTS 1 . Obtain α Signal Display. 2. Select ALT H ORIZONTA L MOD E. Adju st the Α and Β I NTEN SITY controls for desired display brig htness. 3. Adjust the appropriate chann el POSITIO N control and the Α/Β SWP SEP control to d is play the Α trace above th e Β trace. 4. Adjust the Α I NTEN SITY control as needed to ma k e the inte nsified zone d istinguis hable from t he remainde r of the display. Set the Β S EC/DI V switch until t h e inte nsified zone is the desired le ngt h.

Operating Instructions-2235 Service 5. Adjust the Β DELAY TIME POSITION control to move

the intensified zone to the leading edge of the first pulse of interest ; then fine adjust u ntil the rising p ortion is centered at any convenient vertical graticule line .

6. R ecord t he Β DELAY TIME POSITION control d ial setting . 7 . Adjust the Β DELAY TIME POSITION control clockwise u ntil the rising portion of the second pulse of interest is p ositioned to the same vertical reference line selected in step 5.

2 . Use equal-length coaxial cables, or the two 10 Χ

probes supplied with t he instrument, to apply the h orizontal signal (X-axis) to the CH 1 OR Χ i nput connector and to apply the vertical signal (Y-axis) to the CH 2 OR Υ input connector. 3. Select Χ-Υ mode b y rotating the Α SEC/DIV switch to its fully counterclockwise position.

4. R otate the Α I NTENSITY control clockwise until two dots are displayed . The display can be positioned h orizontally with t he H orizontal POSITION control and vertically with the Channel 2 POSITION control.

8. R ecord the Β DELAY TIME POSITION control dial setting.

NOTE display ob tained when sinusoidal signals are plied to the Χ- and Υ-αχίs Is called α Lissajous ap figure. This display Is commonly used to compare the frequency and phase relationships of two inpu t signals. The frequency relations h ip of the two inpu t signals determines the pattern seen . The pattern will be sta ble only if α common divisor exists between the two frequencies. The

9. Use the following formula to calculate the time difference : Time second first Difference = dial - dial (delayed swee p) setting setting

Α SEC/DIV switch setting (delay time) )

SI N GLE -S WEEP DIS PL AY 1 . Obtain α Signal Display. 2 . F or random signals, set the Α TRIGGER LEVEL control to trigger the sweep on α signal that is approximately the same amplitude as the random signal . 3. Momentarily press in the Α TRIGGER SGL SWP RESET push button . If no trigger signal is present, the TRIG'D-READY light should illuminate to indicate that the Α Sweep Generator circuit is set to initiate α sweep when α trigger signal is r eceived . The next trigger pulse will initiate the sweep, and α single trace will b e d isplayed . 4. When t he single sweep is triggered and the sweep completed, the Sweep-Logic circuitry is then locked out. Another sweep cannot be generated until the SGL SWP RESET push button is again pressed i n to set the Α Sweep Generator to the READY condition .

Χ-Υ DIS PL AY 1 . Obtain α b aseline trace.

TV SIG N AL DIS PL AYS Displaying α

T V Line-rate Signal

1 . Display of the desired TV signal (see "Signal Display" procedure) . 2. Set the Α SEC/DIV control to 10 μs, and the Α & Β ΙΝΤ switch either to CH 1 or to CH 2, as appropriate for t he applied signal . 3. Set the Α T RIGGER S LOPE switch either for α positive-going signal (lever up, if the applied TV signal sync pulses are positive-going) or for α n egative-going signal (lever down, if the TV sync pulses are n egative-going) . 4. Adjust the Α TRIGGER LEVEL control for α stable display, and the Α NTENSITY control for desired display brightness . If necessary, adjust the VERTICAL VOLTS/DIV control to obtain α trace h aving 5 d ivisions or greater amplitude with α stable display.

I

ΝΟΤΕ To examine α TV Line-rate sign al in more detail, either Χ10 Magnifier or HOR IZON TA L MODE functions may be employed as previously described in this manual. the

Op erating Inst ru ctio ns-2235 Service Displayi ng α T V Field-rate Signal 1 . Obtain α Signal Display of the desired TV signal (see "Signal Display" procedure). 2. Set the following co ntrols: 2 ms Α SE C/DI V TV FIELD Α TR IGGER Mode Eit her CH 1 or CH 2, Α & Β ΙΝΤ app ropriate 3. P erfo rm Steps 3 and 4 unde r t he p recedi ng "Dis playing α TV Line-rate Signal" procedu re . 4. To d is play either F ield 1 or Field 2 individually at faster swee p rates (dis plays or less than o ne full field), set VERTICA L MOD E to BOTH and ALT simultaneously . Th is sync hronizes the Channel 1 display to one fiel d and t h e C h ann el 2 disp lay to the ot her field.

To c hange the field that is dis p layed, inte rrupt the trigge ring either by r epeatedly setting the AC-G N D-DC switch to GN D or by disconnecting and reconnecting the signal from t h e input connector until the ot her field is displayed. To display bot h fields simultaneously, apply the in put signal to both the CH 1 and CH 2 inputs, using either two probes, two ca bles, or α dual-input co up ler. NOTE To examine α TV Field-rate signal in more detail, either the Χ10 Magnifier or HORIZONTAL MODE func tions may be employed as previously described in the subsection of the manual. 5. To disp lay α selected horizontal li ne, first trigger the sweep on α vertical (field rate) sync pulse, then u se t he delayed sweep to delay out to that line for close examin atio n. Th is procedure is useful for examining V ITS signals.

Section 3-2235 Service

T HE O RY O F O PER ATIO N

I N T R OD U CTIO N SECTION I ORGAN IZATIO N This section of the manual contains α general summary of instrument functions followed by α detailed descri ption of each major circuit. Α basic block diagram, α detailed b lock diagram, and the schematic diagrams are located in the tabbed "Diagrams" section at the back of this manual . They are used to show the interconnections between p arts of the circuitry, to indicate circuit components, and to identify interrelationships with t he front-panel controls .

The schematic diagram number associated with each description is identified in the text and is shown on the block diagrams . For best understanding of the circuit being d escribed, refer to the appropriate schematic d iagram and the two block diagrams .

NTEGRATED CIRCUIT DESC RIPTIONS Digital Logic Conventions Digital logic circuits p erform many functions within t he instrument . Functions and o peration of the logic circuits are represented by logic symbology and terminology . Most logic functions are d escribed using the positive-logic convention . Positive logic is α system of notation whereby the more p ositive of two levels is the TRUE (or 1) state; the more n egative level is the FALSE (or 0) state. In this logic description the TRUE state is referred to as HI, and the FALSE state is referred to as LO. The specific voltages which constitute α HI or α LO state vary b etween specific devices. For specific device characteristics, refer to the manufacturer's data book.

L inear Devices The functioning of individual linear circuit devices in this section use waveforms or other techni ques such as voltage measurement and simplified diagrams to illustrate their operation.

Theory of Operation-2235 Service

G ENER AL D E SC R I P TIO N NOTE When reading this genera/ circuit description of the 2235 Oscilloscope, refe r to the basic block diagram (Fίgure 9-4) and to the detailed block dίagram (Fίgure 9-5) located in the "Diagrams" section of this manual. /η Figures 9-4 and 9-5, the numbered diamond symbol in each major block refers to the appropriate schema tis diagram n umber.

tions the Β trace with respect to the Α trace when Alt Horizontal M ode is selected .

Signals to be displayed on the crt are applied to either t he CH 1 OR Χ input connector or t he CH 2 OR Υ input

The Α Trigger circuitry uses either an Internal Trigger sigηαΙ, an External Trigger signal, or α L ine Trigger signal obtained from the ac p ower line to develo p t he gate signal for t he Α Sweep Generator . The Β Trigger circuitry uses only t he Internal Trigger signal to gate the Β Sweep Generator . Α Ρ-Ρ Auto Trigger circuit ensures that the range of the Α TRIGGER LEVEL control tracks the peak-to-peak ampli tude of the trigger signal when either the Ρ-Ρ Auto or TV Field trigger mo de is selected . This allows triggering on most signals without needing to adjust the Α TRIGGER LEVEL control . In Norm mode, the Α T RIGGER LEVEL control must be adjusted for the correct trigger signal level b efore α sweep can b e generated . When the TRIG V IEW switch is activated, the signal ap p earing at the input of the Α Trigger circuit is applied to the Delay Line Driver and d isplayed on the crt.

The output signal from the Attenuator circuit is applied to the Vertical Preamplifier for further am plification . AdditionalΙγ , the Channel 2 Attenuator can invert the Channel 2 d isplay on the crt. Trigger Pickoff Amplifiers in each channel su pp ly an internal trigger signal from either or both channels to the Internal Trigger Am plifier .

Α TV Field sync circuit p rovides stable triggering on television vertical-sync pulses . Triggering at the television line rate is accomplished when either Ρ-Ρ Auto or N orm mode is selected .

Input signals are selected for d isplay by the Channel Switching circuit under control of the front-panel VERTICAL MODE switches . The output signal from the Channel Switching circuit is applied to α Diode Gate circuit to enable either the vertical or trigger view signal to d rive the Delay L ine Driver stage. This stage converts α current input to α voltage output and provides an impedance match for the Delay L ine. The Delay L ine p roduces app roximately 90 ns of delay in the vertical signal . This allows the Horizontal circuitry time to start the sweep so that the operator can see the signal that triggered the sweep.

The Α Sweep Logic circuit controls sweep generation and Ζ-Axis unblanking for the Α Sweep d isplay . When the Α TRIGGER Mode switches are set to either Ρ-Ρ AUTO or TV FIELD and no trigger signal is p resent, the Auto B aseline circuit causes the Sweep L ogic circuit to produce α sweep for reference p ur poses . In the NORM setting, the Auto Baseline circuit is d isabled and sweeps are inhibited until α trigger event occurs . This is useful for triggering on lowrepetition-rate signals . The SGL SWP setting enables only one swee p to be generated after being reset. Following the single sweep, the Α Trigger circuit is d isabled until the SGL SWP button is pressed again .

connector. These signals may be directly (DC) coupled to t he Attenuator circuit or ac (AC) coupled through an in putcoupling capacitor. The in put signals may also b e d isconnected from the oscilloscope circuitry and the in put attenuator grounded by setting the coupling switch to the GND position .

Final am plification of the vertical signal is performed by the Vertical Output Amplifier. This Am plifier su pplies the sigηαΙ levels necessary for vertical deflection of the electron beam in the crt. The upper frequency response of the Amplifier can be reduced by enabling the B andwidth Limit circuitry . For locating the position of off-screen displays, the dynamic range of the Amplifier can be limited with t he Beam Find circuitry . This circuitry also intensifies the trace and limits h orizontal deflection . The Α/Β Sweep Separation circuitry supplies α dc-offset current to the Vertical Out p ut Am plifier which vertically posi-

The Α Sweep L ogic circuit controls the operation of the Α Miller Sweep Generator circuit . The Swee p circuit produces α linear sweep output with α ramp time that is controlled by the Α SEC/DIV switch . The sweep signal is app lied to the Horizontal Preamplifier for initial amplification and then to the H orizontal Output Amplifier to drive the crt h orizontal deflection plates . The Horizontal Preamplifier gain is increased by α factor of 10 when the X10 M agnifier is used . Horizontal positioning of the display is accomplished in the Horizontal Preamplifier circuit.

Theory of Operation-2235 Service In the Χ-Υ mode of operation, the Channel 1 signal from the Internal Trigger circuitry p asses through t he Χ-Υ Amplifier to the Horizontal Preamplifier . In this operating mode, the Channel 1 Internal Trigger signal su pplies the h orizontal deflection to the crt, and the M iller Sweep circuit is disabled to inhibit sweep generation . The Alternate Β Sweep circuitry controls the Alt and Β Horizontal mode displays and includes the Β M iller Sweep Generator and Β Sweep Logic circuitry. In addition to p roviding the Β Sweep sawtooth waveform, signals are generated which control the d isplay switching between the Α and Β displays . The intensity levels of both t he Α and Β Sweeps are set by the front-panel Α and Β I NTENSITY controls . These controls, along with signals from the Α and Β Sweep Logic circuits, determine the drive level to the Ζ-Axis Amplifier. The Ζ-Axis drive from both t he Α Sweep L ogic circuit and the Alternate Β Sweep circuit is applied to the Ζ-Axis Amplifier . The output signal from the Ζ-Axis Amplifier circuit sets the crt intensity. When using Chop Vertical mode, α b lanking

signal from the Chop Oscillator circuit blanks the crt d isplay while switching between the vertical channels . The Dc R estorer circuit applies the output voltage of the Ζ-Axis Amplifier between the cathode and grid of the crt. High do potentials on these elements p rohibit direct coupling to the crt. The Power Supply provides the necessary operating voltages for the instrument . Operating p otentials are obtained from α circuit composed of the Preregulator, Inverter and Transformer, and Rectifiers and F ilters . The Preregulator p roduces approximately +43 V do from the ac p ower line which is used to drive the 20 kHz Inverter stage. The transformer secondary windings provide various ac levels that are rectified and filtered to produce the operating voltages . Α h igh-voltage multiplier circuit produces the accelerating, focus, and cathode potentials req uired by the crt. Α front-panel PROBE ADJUST output is p rovided for use in adjusting probe compensation . The voltage at the PROBE ADJUST connector is α negative-going square wave that h as α peak-to-peak amplitude of approximately 0 .5 V and α repetition rate of approximately 1 kHz.

DETAILED CIRCUIT DESCRIPTION VERTICAL ATT ENU ATORS The Channel 1 and Channel 2 Attenuator circuits, shown on Diagram 1, are identical with t he exception of the additional Invert circuitry in the Channel 2 Paraphase Amplifier. Therefore, only the Channel 1 Attenuator will b e described and the Invert circuitry of Channel 2 will be d iscussed se p arately. The Attenuator circuit (see F igure 3-1) p rovides control of input coupling, vertical deflection factor, and variable voltsper-division gain . Input signals for crt vertical deflection may be connected to the CH 1 OR Χ and the CH 2 OR Υ input connectors . In the Χ-Υ mode of operation, the signal applied to the CH 1 OR Χ connector provides h orizontal (X-Axis) deflection for the display, and the signal applied to the CH 2 OR Υ connector provides the vertical (Y-Axis) deflection for the display.

I nput Coupling

The signal applied to the CH 1 OR Χ i nput connector can be ac coupled, do coupled, or disconnected from the input of the High-Impedance Input Attenuator circuit. Signals applied to the CH 1 OR Χ in put connector are routed through resisfor R9100 to Input Coupling switch S1 . When S1 is set for do coupling, the Channel 1 signal is applied directly to the input of the High-Impedance Attenuator stage. When ac coupled, the input signal passes through dc-blocking capacitor C2 . The b locking capacitor prevents the do com ponent of the input signal from being app lied to the Attenuator circuit . When switched into the signal p ath, attenuators ΑΤ 1 an d ΑΤ 2 attenuate the input signal by factors of 100 and 10 respectively . When S1 is set to GND, the direct signal p ath is opened and the input of the B uffer Amplifier is connected to ground . This provides α ground reference without the need to disconnect the applied signal from the input connector. The coupling capacitor precharges through R4 to prevent large trace shifts when switching from GND to AC .

T heory of Operation-2235 Service

FROM VERT I CA L INPU T CO UPL I NG

ΗΙ GΗ-Ζ ATTENUATOR =1 , = 10, =1 θ0

GA I N

SW I TC H I NG

BUFFER AMPL F AST PATH ρ13, Q18

NE TWO RK

=1 , = Ζ , =4, +10

τ0

VERTICAL

PREAMP

BUFFER A MPL SLOW PATH --aU 10 > Q15 FRE QUENCY GAI N BALANCE R 47 42θ6-1 θ

Figur e 3-1 . B loc k d iagram of t he V ertical Atte nu ato r s.

B uffer Amplifie r

an d Gai n Switc h ing

N etwor k

The B uffer Am p lifier presents α h ig h-impedance, low-capacita nce load to the signal from the Hig h-Impedance Attenuator and α low outp ut impedance to the Gain Switching Network. Α dual-pat h amplifier is used to combine h ig h-d c stability with hig h-s p eed p erforman ce . In the slow pat h , the input sig nal is applied to b ot h the gate of source-followe r Q13 and the inverting in put of U10 thro ugh the divide-by-two netwo rk composed of R 3 and R 5. Transistor Q13 and emitte r-followe r Q18 isolate the input signal from the loa d ing of t he Gain Switching Network. The divider network at the output of the Am plifier (1146, 1347, and R 48) is co nnected to the oth e r i npu t of U 10 . Am plifier U10 com p ares the two divider voltages and changes the conduction level of current-source transistor 015 to correct for any error at the source of 013. Ca p acitor C10 limits the bandwidth of U 10 so that th e slow pat h res ponds only to frequencies b elow 100 kH z. In the fast path , input signals are coupled throug h R6, C6, 013, and Q18 to the ci rcuit output . By ad justing R47, the gain in both path s is matc hed . In put offset voltage compensation for U 10 is provided by R 10 to eliminate trace shifts when switching betwee n Volts/Div settings . The Gain Switching Network divides d own t he Buffer Am p lifier outp ut signal for app licatio n to the P araph ase Amplifier and has an output im pedance of 75 Ω for all Volts/Div switch settings . Th e particular V olts/Div switch setting will determine whic h co n tacts of S10 are closed and th erefore whether the Para p h ase Amplifier will receive α - 1, - 2, 4, or - 10 signal .

P ara ph ase

Am plifie r

The Paraphase Am plifier co n verts the single-e nded signal from the Gain Switching Network into α differential sigηαΙ for a pp lication to the Vertical Pream plifier. In cluded i n the ci rcuitry is switching t h at provides extra gain for th e 2 mV p osition of the V OLTS/DIV switch, adjustments fo r am plifier do b alance, and circuitry fo r the V aria ble Volts/Div function . Additionally, the Channel 2 Paraphase Am plifier co ntains circ uitry to invert t h e Chan nel 2 display . The signal from the Gain Switching Network is a p plied to the base of one transistor in U30 . The ot her in put transistor is b iased b y the divider networ k com posed of R 30, R31, and R 33 to α level that will p roduce α null b etween the outputs of U30 (no trace shift on th e crt screen) when the VOLTS/DIV control is switched between 5 mV and 2 mV . Emitter current for the two in pu t transistors is su pp lied by R 21, R 22, R23, and R 25, with R29 servi ng as the gain-setti ng resistor between the two emitters . In the 2 mV position, am plifier gain is increased b y closing contact 15 of S10 to shunt R 29 with R26 . The collecto r current th roug h the two in p ut transistors serves as emitter current for th e two d iffe rential output transistor pairs . B ase-bias voltages fo r the two pairs are derived from the d ivider network com posed of R 39, R41, R42, and R 43 . M onolit hic IC U30 has match ed transistor characteris tics, so the r atio of curren ts in t h e two diodes co nnected to pin 11 d etermines the current ratios in the output transistor pairs. As V OLTS/DIV Variable potentiometer R43 is rotated from the calibrated to uncalibrated position , the co nductio n level of the transistors connected to R 35 will increase . Since t h e transistor pair outputs are cross-wired, this increased co nduction will subtract from the signal produced by the

Theo ry of Operation-2235 Service transistors connected to R38 a nd the overall gain of the Am plifier will d ecrease. Potentiometer R25 adjusts the balance of the Amplifier so there is minimal do trace shift as the V OLTS/DI V Variable control is rotated . Incorporated in t he Channel 2 Paraph ase Amplifier is circuitry to invert the polarity of t he Chan nel 2 signal . Wh en INVERT switch S90 is out, the transistor p airs in U 80 are biased as they are in U30 and t here is no trace inversio n. For the IN position of S90, connectio n s to th e bases of the o utput transistor pairs are reversed to p roduce an inverted Chan nel 2 trace. Potentiometer R 75 is adju sted so that there is minimal do trace shift as th e INVER T b utton is change d between the IN an d OUT positions .

VERTICA L PREAMPLIFI ER S The Vertical Pream plifier, shown on Diagram 2, u tilizes differential signal current from the Parap h ase Amplifier to produce differential output curre n t to d rive the Delay L ine Driver . Internal trigger signals for the Trigger circ uitry are picked-off an d chan nel selection for crt display is controlled by the Chann el Switch circuitry.

Channel 1 a nd Channel 2 output signals are then conducted to ground . Zener diode VR 200 turns on and CR200 and C R201 become reverse biased . Trigger V iew transistors Q440 and Q441 are t h en co upled to the Delay Line Driver throug h forward-biased d iodes C R202 and CR203. The crt trace will then be α disp lay of the Α Trigger signal .

CH A NNEL S W ITC H A N D VERTICA L O UTPU T

The Channel Switch circuitry, s hown on Diagram 2, utilizes the front-pa nel VERTICA L MOD E switches to select the crt display format . See F igure 3-2 for α block diagram of the circuit. When any display mode oth er t h an Χ-Υ is selected, the ΧΥ line connected to S550 is at groun d potential. VERTI CA L MOD E switches S545 and S550 control the co nnection between the ΧΥ line and th e S and R nputs of U 540A to obtain the various d is play formats descri bed below .

i

CHANNEL 1 DISPLAY ONLY. Th e C H 1 position of S550 grounds the S input of U 540A while the R input is h eld HI b y R 539 . This will produce α HI and α L O on the Q an d Q outp uts respectively, and the Channel 1 Preamplifier signal Common-base transistors Q102 and Q103 co nvert differwill drive the Delay Line Driver as descri bed in the "Vertical ential current from the Paraph ase Am plifier into level-shifte d Pream plifier" section. The Chan n el 2 Pream plifier will be voltages that drive the b ases of the input transisto rs of disabled . U 130 and the Internal Trigger circuit ry. E mitter current for the in pu t transistors is supplied by Q114 and Q115, and the base b ias is adjuste d by R 111 . The collector current of each CHANNEL 2 DISPLAY ONLY. The CH 2 position of S550 in put transistor of U130 serves as emitter current for two h olds the R input of U540A L O throug h C R 538 and t he d ifferential output transistor p airs . One of the collectors of S in put is h eld HI by R 538. The outputs will t h en be Q L O each output pair is grounded and the ot her provides output the an d ?i HI to enable the Channel 2 P reamplifier signal to drive drive to the Delay Line Driver . The b ase voltages of the Delay Line Driver while the Cha nnel 1 P reamplifier is transistors with grounded collecto rs are h eld at ground ροdisa bled . tential b y R 136. The b ase voltages of th e oth er transistors are controlled by the Channel Switch and Trigger View circuitry. To display the ADD, ALT, or CHOP formats, S550 must be in t he BOTH position to ground t h e Α, C, and F pins of S545 . Wh en Channel 1 is selected to d rive t he Delay Line Driver, the Q output of U 540A is HI . The t r ansistors with t he ungrounded collectors will then be forward-biased and the ADD DISPL AY . In the ADD position of S545, b oth th e S Channel 1 signal will b e conducte d t hrough to the Delay Lin e and R inputs of U 540A are hel d LO by CR534 and CR537 . Driver . If Channel 1 is not selected, then the Q output of The Q and Q outputs are then bot h HI a n d signal currents U540A is L O. The transistors with t he un grounded collecfrom the Channel 1 an d Channel 2 Preamplifiers ad d togeth to rs are then reverse-biased and the output signals will be er to drive the Delay L ine Driver . conducted to ground by the ot her transistor p air. The gain of the Pream plifier is set by adjusting R145 to d etermine h ow much signal current will b e shunted between t h e two differCHOP DISPL AY . In the CHOP position, th e C h op E na ble ential outputs. li ne is h eld LO k eeping the Q output of U 540B Hl . This enables multivibrator U537D to ru n at α frequ ency that is de n ressed in, termined by R544, R 545, and C545 . The out pu t of U537C, When TRIG V IEW push butto S200 is p the inverted output of the multivibrator, is used to d rive -8 .6 V is applied to R138 and R188 to turn off the transisU537A and U 537B. tors in U130 and U 180 with u ngrounded collectors . B oth the

T h eory of

Op e ration-2235 Service

C H A NNEL 1 ATTENU ATO R

FR OM

CH ANNEL 1

A MPL /S W Ι TC H U 13 θ

D I ODE

SW I TC H I NG

LOGIC

C R2 0 0

, CR20 1 , CR2θ2, CR2θ3

S55θ , U54ΘΑ U5408, U537A U537C, U537D

C H A NNEL 2 ATT ENU ATOR

FROM

C HANNEL 2

AhPU SWITCH U 180 α206-12 Fig ure 3-2. Bloc k diag r a m of th e Ch a nn el Switc h i ng ci rc u itry .

Co u p ling capacitor C547 an d resistors R 547 a nd R 548 form α d ifferentiating ci rcuit that p ro duces p ositive- and negative-going sh ort-duration pulses . These pulses are inverted b y U537 B to ge n erate the Chop Blank signal utilized b y th e byAxis Am plifier . Th e Alt Sync signal applied to one in put of U 537A is HI except during H oldoff . This allows the outpu t of U 537C to be inverted by U537A which drives the clock input of U540A . Si nce th e Q outpu t of U540A is co nnected back to the D input an d both t he S and R in puts are ΗΙ , the outputs of U540A will toggle with each cloc k input. The Delay Line Driver will th e n be driven alternately by the Channel 1 and Channel 2 Preamplifiers at α rate determined by multivibrator U 537D . ALTERN ATE DISPL AY . In th e A LT p osition, th e Chop Enable line is hel d HI and multivi brator U 537D is disabled . The output of U 537C will be LO and the Chop Bla nk sig nal from U537 B will also be LO. In p ut signals to U537A will b e the L O from U537C and the Alt Syn c signal from the Holdoff circuitry in the Α Sweep Generator . T he output of U537A will then be the inverted Alt Sync signal which cloc k s U540A . This causes the outputs of U 540A to toggle at the end of each swee p so that the Ch annel 1 and Channel 2 Preamplifier sign als will alternately drive the Delay L ine Driver .

3- 6

Delay

L i n e Drive r

The Delay L ine Driver converts th e signal current from the Vertical Preamplifiers or the Trigger V iew circuitry into α signal voltage for input to the Delay L ine. Transistors 0202, 0203, Q206, and Q207 form α differential shunt-feedback am plifier with th e gain controlled b y R216 and R 217. Ampli fier compensation is p rovided by C210 and R 210 and out pu t common-mode d o stabilization by U 225. Should the voltage at the j unctio n of R 222 and R 223 deviate from zero, U225 will sink or source b ase current to Q202 and Q203 through R202 and R 203. This will return t h e outputs of the Delay Line Driver to an average do value of zero volts. Delay L in e D L210 p rovides α vertical signal delay of about 90 n s so that the Sweep Generator has sufficie n t time to produce α sweep before the vertical signal that triggered the swee p reac hes th e crt deflection plates . Th is permits viewing the leading ed ge of the internal signal th at originated the trigger pulse . Vertical O u tput Am plifier The Vertical Output Amplifier provides final am plification of the input signals for app lication to the vertical d eflection p lates of the crt. Signals from the Delay L ine are applied to α differential amplifier composed of Q230 an d Q231 with lowand h ig h-frequency compensation p rovided by the R C networks connected betwee n the emitters . Thermal compensation is p rovided by R T236, and overall gain is set b y R 233.

T h eor y of The output stage of the Amplifier utilizes two totem-pole transistor p airs, 0254-Q256 and 0255-Q257, that convert the collector currents of Q230 and Q231 to p roportional output voltages . R esistors R 256, R 258, R257, and R 259 serve as feedback elements and also as divider networks so that each transistor in α p air drops h alf the final output voltage. The Am plifier output signals are app lied to the vertical deflection plates of the crt to p roduce deflection of the crt beam . BW LIMIT switch S226, C228 and C229, and α diode

b ridge consisting of CR226, CR227, CR228, and CR229,

are utilized to reduce the bandwidth of the Am plifier if desired . W ith t he bandwidth limit off, R 226 is grounded and the nonconducting diode bridge isolates C228 and C229 . With bandwidth limit on, R226 is connected to the +8 .6 V supply and t he d iode bridge conducts . The two capacitors are no longer isolated and will attenuate h igh-frequency signals. BEAM FIND switch S390 adjusts output-amplifier biasing to limit the voltage swing at the crt plates . This keeps the vertical trace within the graticule area for locating offscreen traces . W ith t he switch in the normal out position, the -8 .6 V supply provides emitter current to the Amplifier output stage through R261 . When the BEAM F IND switch is in, the d irect -8 .6 V supply to R 261 is removed and emitter current is now supplied through R261 and R262 in series . This reduces the amount of available emitter current and limits the Amplifier dynamic r ange . Α/Β Sweep Separation Circuit The circuit composed of Q283, Q284, Q285, and associated components p rovides α means of vertically positioning the Β trace with respect to the Α trace during Alt Horizontal Mode displays . During the Β Sweep interval, the Se p signal from the Alternate Display Switching circuit is LO and Q283 is biased off. This allows Α/Β SWP SEP potentiometer R 280 to affect the bias on one side of α differential current source composed of Q284 and Q285 . This supplies α do offset current to the Vertical Output Amplifier and changes the position of the Β trace on the crt screen . During the Α Swee p i nterval, the Sep signal is HI and Q283 is turned on . The b ase voltages of Q284 and Q285 are then the same, and equal current is supplied to both si des of the Vertical Output Amplifier so that no offset of the Α t race occurs .

TR IGGER AMPL I F I ER S

AN D SW ITC H I N G

The Trigger Am plifiers, shown on Diagram 3, provide signals to the Α Trigger Generator circuit from either the Vertical Preamplifiers, the ΕΧΤ INPUT connector, or the power

O p eration -2235 Service

line . The Α&Β ΙΝΤ switch selects either Channel 1 or Channel 2 as the trigger source, and the Α SOURCE switch se lects between internal, line, or external trigger sources. Internal Trigger Signals from the Vertical Preamplifiers drive the Internal Trigger Amplifier with channel selection determined by the VERTICAL and HORIZONTAL MODE switches . Trigger pickoff from the Preamplifiers is accomplished by Q302 an d Q303 for Channel 1, and 0327 and Q328 for Channel 2 . The circuitry associated with Channel 2 is the same as that for Channel 1 except that it does not h ave α trigger offset adjustment . Signals from the Channel 1 Preamplifier are applied to 0302 and Q303 . These emitter-follower transistors each drive one input transistor in U310, and t he collectors of the U310 input transistors in turn supply emitter current to two current-steering transistors . The compensation and biasing network connected to the emitters of the input transistors in U 310 is fixed for Channel 2 but not for Channel 1 . Potentiometer R309 adjusts the emitter bias levels of the two input transistors so that do offsets between c hannels can be matched. The b ase bias voltages of one transistor in each output differential amplifier pair is fixed by the divider network composed of R 321 and R322. The other base voltage is εοη trolled by the Ch 1 Trig li ne from the Trigger Channel Switch . When t he Ch 1 Trig signal is HI, the transistors in each output p air with t he collectors connected together are b iased on and the other transistors are off. The collector signal currents are equal in magnitude but opposite i n polarity and signal cancellation occurs . If the Ch 1 Trig signal is LO, the other transistors in each pair will be biased on and an output signal will be developed across R314 and R315 to drive the Internal Trigger Amplifier. Internal trigger channels are chosen by the Α&Β ΙΝΤ switch with the Α SOURCE switch set to INT. The ΙΝΤ position of S392 reverse b iases CR393 and C R399 to p revent external trigger signals or the line trigger signal from reaching the Α Trigger Generator . Signals from the Internal Trigger Am plifier are p assed to the Α Trigger Generator t hrough forward-biased CR372. CHANNEL 1. For triggering from Channel 1, the Α & Β ΙΝΤ switch is set to CH 1 . The ΧΥ line connected to S555 will be at ground potential and one in put of U555B will be held LO by CR556. The output of U555B will then also be L O and the Channel 1 signal path t hrough U310 will be enabled. The Channel 2 signal path is d isabled by the outputs of both U555C and U565B being HI . 3-7

Theory of Operation-2235 Service CHANNEL 2. For triggeri ng from C hannel 2, th e Α&Β ΙΝΤ switch is set to CH 2. One input eac h of U555C and U555D will be LO and force both gate outputs LO. The LO from U555C will enable the Cha nnel 2 signal path t h roug h U335 and the HI outputs of U555 B and U565C will disable the Channel 1 p at h. VER T M OD E. Wh en the Α&Β ΙΝΤ switch is set to VERT M OD E , trigger so urce selection is determined by the two VERTICA L M OD E switc hes . For all VERTICAL M OD E switch combi n ations exce p t BOTH-CHOP, the V Mode Τ line is HI . The in puts and o utp uts of U555 B, U555C, and U555D will all be HI, and triggeri ng selection will then be d etermi ned by the in puts of U 565B an d U565C that are co ntrolled by U540A in the Chan nel Switch circuit. When Ch an nel 1 is selected (VERTICA L MOD E switch set to CH 1), th e in put to U565C will b e HI . The gate output will be L O and th e Channel 1 signal will be selected. The LO from the ot her outp ut of U 540A is applied to U565B an d causes the Ch 2 Trig line to go HI and the Chann el 2 Trigger signal is disabled . Wh e n Ch a nn el 2 is selected ( VERTICA L MOD E switch set to CH 2), the outputs of U540A, U565 B , and U565C will be th e reverse of t h e states described for Channel 1 selection . The Channel 2 signal will be selected and the Channel 1 Trigger signal disabled. Wh e n selecti ng ALT VERTICA L MOD E, the in puts of U565 B and U565C will toggle with eac h swee p. The outputs of th e two gates will also toggle and th e Trigger sig nal source will alternate with t h e displayed c h an nel . In the ADD VERTICA L MOD E position, bot h in puts to U565 B and U565C will be HI and the gate outputs will be L O. Bot h Channel 1 and Chann el 2 sign al path s will be enabled and thei r output current will be summed at th e inputs of the Internal Trigger Am plifier to produce th e internal trigger signal . The CHOP VERTICA L MOD E position grounds the V Mode Τ line and places α LO on an in put of b ot h U555B and U555C. The outpu ts of these two gates will th en be LO and the signal to the Internal Trigger Am plifier will be the same as for the ADD mode .

Signal current is app lied to the emitters of U 350D and U 350E. The collector current of U 350D is converted to α

voltage across feedback resistor R357 . The opp osite-phase collector current of U350 E ca uses α voltage drop across R 359 whic h adds to the voltage at the collector of U 350C . This voltage appears at the base of U350A whic h bu ffers and level shifts the signal b ack to 0 V . The emitter signal of U350A d rives the Χ-Axis Am plifier, the Β Trigger Generator, and the base of U350 B. The emitter signal of U350 B in turn d rives the Α Trigger Generator whenever CR372 is forward b iased.

Α

External Trigge r Am p lifier

The Α External Trigger Amplifier buffers signals applied to the ΕΧΤ INPUT connector to drive the Α Trigger Generator. In put signal coupling is d etermi n ed by Α ΕΧΤ CO UPL ING switch S380 which selects AC, DC, or DC - 10 co up ling . Wh en S380 is in the AC position, the inp ut signal is accoupled throug h C376. In the DC position , the input signal is connected directly to the Am plifier. The DC - 10 position attenuates the input signal b y α factor of 10 through the compensated divider composed of R 377, R378, C380, and C381 . The signal is then applied to the gate of Q382A. Th is source-follower drives emitter-follower transistor 0384 whic h lowers the Amplifier output im pedance . The two FETs are α matc hed p air, and since the gate and source of 0382 Β are connected together, 0382 Β will supp ly source curre n t for Q382A suc h t h at t here will be no voltage d rop across the gate-source j u nction of Q382A. Protection-diode C R381 clamps the signal at the gate of Q382A to about -9 V . The Am plifier output will drive t he Α Trigger Generator throug h forward- biased CR393 when ever t he Α SO UR C E switch is set to EXT. When th e Α SO UR CE switch is not set to ΕΧΤ, the base-emitter j unction of 0384 will be reverse biased and the Am plifier will be disabled .

L ine Trigge r

Am plifier

The L ine Trigger Amp lifier su pp lies α lin e-freque n cy trigger signal to the Α Trigger Generator when t he Α SO UR CE switch is in t he L I NE position.

Internal Trigger Am plifier The Internal Trigger Am p lifier co nverts the d ifferential trigger signals from the Vertical Preamplifiers into α si ngleended sign al th at drives the Χ-Axis Am plifier and th e Α and Β Trigger Generators .

Transformer Τ390 in the Power Su pp ly provides α linefrequ ency signal throug h R397 to Q397 . Diode CR399 is forward biased when S392 is in the LI NE positio n, and the emitter signals of Q397 will drive the Α Trigger Generator .

Theo ry of Operation-2235 Service

Α TR IGG ER

G ENER ATOR

The Α Trigger Generator, shown on Diag ram 3, supplies trigger signals to the Α Sweep Generato r. Included in the Α Trigger Generator circ uit are the Ρ-Ρ Auto Trigger, Auto Baseline, and TV Triggering circ uitry .

biased on an d U 460A and U 460D are b iase d off. For the negative slope position, the transistors reverse states to invert the comparator outpu t p olarity. Α Sc hmitt Trigger a nd

T V Trigge r Circuit

This circuitry ge nerates α signal that drives the Α Trigger

Α Trigge r Level Ci rcuit The Α Trigger L evel Circ uit establishes voltages at the ends of the Α TR IGGER LEVEL potentiometer as α function of the Α TRIGGER p ush bu tton selection and trigge r signals selected by the Α SO UR CE switch.

Logic as α fu nctio n of the Trigger Level Comparator output

signal and the Α TRIGGER Mode switches .

The output signals from the Α Trigger Level Comparator drive Q460 and Q463 . These transistors are configured as α current mi rror that converts the d ifferential output to α single-ended current to drive am plifier U480C . Slope Balance potentiometer R 471 D corrects for d o offsets betwee n p osiIn the Ρ- Ρ Auto a nd TV F ield modes, 0413 is off and tive and negative slope. S h unt-feed back amplifier U480C CR414 a n d C R415 are reverse biased . Trigger signals selected b y the Α SO UR CE switch are applied to pea k detecco nverts α curre n t in put to α voltage output to drive th e input consisting of Q420-Q422 and 0421-Q423. These peak of the Sc hmitt Trigger, U 480D, through R 469 . Positive tors feedback for the Schmitt Trigger is p rovided by potentiomedetectors trac k do levels a nd h ave α hig h voltage transfer ter R 479, and C479 reduces trigger j itter by increasing posiefficie ncy . Th e positive- and negative-peak sign al levels tive feedback at h igher frequ encies . T he setting of R479 stored by C414 an d C415 are near th e peak levels of the determines the circuit h ysteresis. trigger signal . Am p lifiers U426A a nd U 426B are configured as voltage followers with transistors 0428 and Q429 in the feedback loops. Th ese transistors thermally compensate for Wh en TV Field is not selected, the TV Trig Ena ble line Q420 and 0421 and level shift the am plifier outpu ts bac k to connected to R 402 and R 473 is LO . Transistors 0402 and the original do levels of t h e input trigger signals . The output Q403 are biased off an d α L O is p lace d on one inp ut of of U426A will b e the positive peak voltage of the input trigU480A by R474. This LO in put will cause U 480A to invert ger signal and th e out p ut of U 426B will be the negative p ea k voltage. Potentiometers R 434 and R 435 adjust for do offthe outpu t from U 480D . Wit h Q403 off, α LO will be placed on one input of U480B by R405 and U480B will also act as sets in the trigger ci rcuit ry. an inve rter. The Α Trigger signal at the outpu t of U 480 B is therefore the same as the input signal to U480A . h Norm V is app lied to the j unction of In t e mode, +8 .6 R 411 and R 414. Diod e C R414 is forward b iased, turning on Q413 which forward b iases CR415. Input transistors Q420 Wh en TV Field is selected, th e TV Trig E nable line is HI . The outputs of U480D will determi ne the co nd uction states and Q421 are then biased off and no trigger signals will of 0402 and Q403, an d t he i np ut of U 480A con n ected to reach t h e Α Trigger Level ci rcuit . The inputs and outputs of R473 will b e HI . The output of U 480A will be LO and U480 B U 426A and U 426 B will then be fixed voltages and indepenwill invert t he signal at its ot h er input. Signals at the collecdent of trigger-sig nal am plitude . tor of Q403 are filtered b y C408, R 405, and C405 to reject TV video information and average the TV horizontal-sync pulses. Setti ng t h e trigger-level th resh old near the center of Α Trigge r Level Comparatoι t h e horizontal-sync-pulse swing establish es the untriggered The Α Trigger Level Comparator compares signals selevel. When t h e TV vertical-sync bloc k occurs, the o utpu t of lected by th e Α TRIGGER SO UR CE switch to α voltage set t h e filter app lied to U 480B pin 7 rises to α level that will b y th e Α TR IGG ER LEVEL co ntrol . Positive or negative cause t h e Schmitt Trigger circuit to switch . Precise TV fiel d slope trigge ring is selected by the Α TRIGGER S LO PE syn c h ro n ization is obtained as α result of this filtering action. switc h. The Α Trigger signal outpu t will b e th e inve rse of t he filtered signal appearing at U480B pin 7. Tran sistors U 460B and U460E compare the wi per voltage on the Α TRIGGER LEVEL control to the input trigger signal, and the transistor with t he h ig her b ase voltage will conduct more of the available emitter current. The output collector currents su pply emitter current to two transistor p airs whic h serve as cross-wired switches that are biased on or off by the Α TRIGGER S LOPE switch. Wh en S464 is set to the positive slope position, U 460C and U460F are

Α

S WEEP G ENER ATOR A ND LOGIC

The Α Swee p Ge n erato r and Logic circuitry, shown on Diagram 4, p roduces α li nea r voltage ramp th at is amplified by the H orizontal Am plifier to provide h orizontal deflectio n of the crt beam . The Sweep Generator circuits also produce

Th eory of Op eration-2235 Service sign als th at are used to ge nerate correct timing of t h e crt u nb lank ing and intensity levels used for viewing t h e dis p lay. See Figure 3-3 for t h e b loc k d iagram of t h e Α Swee p Gen erator a nd L ogic ci rcuitry . The Sweep Logic circuitry controls th e hol doff time, starts t he sweep upon reception of α trigger signal, a nd termi n ates t he swee p at t h e proper swee p level. When using Ρ-Ρ Auto or T V F ield triggering, t h e Sweep Logic circ u itry will cau se t h e Sweep Ge n erator to free run, prod ucing α baseli n e t race if α trigger sig n al is not received wij: h i n α predetermi n e d time period . Α

Mille r Sweep Gene r ato r

T h e Α Miller Swee p Generator prod uces α linear voltage ramp t h at drives t h e H orizo n tal Amplifie r . It produces t h is r am p by maintaining α co n stant c u rre n t t h rough timing capacitors to obtain α li n early inc reasing voltage. Field-effect transistors Q704A and 0704 Β are match e d devices wit h Q704 B so u rci n g current for 0704 Α . Si n ce th e gate and source of Q704 B are connected toget her, th e sou rce current of Q704A will b e of α magnitude such th at t here is no voltage drop across its gate-sou rce j unction . Wh en t h e swee p is not runni ng, 0701 is biase d on to hold t he timing ca p acitors in α disc harged state. Th e low im peda n ce of Q701 in t h e fee dbac k path h olds t he Α M iller

Sweep output near groun d p ote ntial . T he voltage across Q701, i n addition to t he base-emitter voltage of Q706, prevents saturation of t h e output device .

T R IGGER

SIG N A L S FRO M THE Α T RA IGGER U TO CI R C U I T RY Ι B ASEL I NE U 5Θ2Β , U 5θ 4 Α , Q ςφ 9

Α swee p ramp is initiated wh en 0576 is biased off. Th is will b ias off Q701 an d t he timi n g ca pacitors can c harge at α rate dete r mined by timing resistors R 701 and R 702 and t h e p osition of Α S E C/DI V switc h S701 . On e end of timing resistor R 701 is co n nected to t h e wi per of R 721 and t he ot h er end is con nected to t h e in pu t of th e M ille r i ntegrator . Due to feed b ack from t h e circ u it ou tput th rough t he timi n g capacitors, t he i n tegrator inp ut voltage remains fixed a nd esta b lis h es α constant voltage across t h e timing resistors. T h is constant voltage, wh ic h p rodu ces α co n stant current t h roug h t he timi n g capacitors, res u lts i n α lin early increasi n g voltage at t h e output of t he Α M iller Sweep circuit.

When t h e o utp ut reac h es a pp roximately 12 V, the Sweep

Logic circuitry will initiate t he holdoff p eriod i n wh ic h Q701 is

turned on and th e Α Swee p Generator is reset . T h is h oldoff period is n ecessary so th at t he timi n g ca p acitors can be fully d isch arged b efore anot h er sweep starts . Capacitors C702 an d C703 are always i n th e c h arging circuit an d are used for h ig h swee p s p eeds. Ca p acitor C701 Α i n series wit h C701 Β are used for medium sweep speeds, and C701 Β is used for slow swee p speeds .

T he Sec/Div Varia b le circu itry utilizes an operational amplifier to mai ntain α co nsta n t refere n ce voltage at one en d of R 721 i nd e p end ent of th e circ u it load . Th e voltage ap plied to t h e timing resistors varies wit h t he rotational position of R721, t h e S E C/DI V V ariable control. Α fixed do voltage is applied to th e noninverti n g in p ut of t h e operatio n al am p lifier and feedback resistors R 717 and R 718 establis h d oub le t h at voltage at t h e anode of VR 720 .

SWEEP

Α

Α SWEEP

L OG I C

GENER ATOR

U532 B , U5θ2Α

,

U5Φ6 Α , U5Θ6Β , U506C

SI N GLE SWEEP U 532A

HO LOO FF

Q701, Q7 Θ4Α , 0704B, 0706, U715

TO HO R I ZO N TAL AMPL I F I ER

U504B

EN D-O F -S WEEP Q525 42 θ6-13

Fig ur e 3-3 . B loc k diag ram of th e Α Sweep Gen e rator a n d Logic ci r cu it ry .

3- 1 0

Theory of Operation-2235 Service of U 532D is h eld L O by R569 and the output will follow the signal p rovided by the Q output of U502 . If trigger signals The Α Sweep Logic circuitry controls swee p generation, are b eing received by U502, the output of U532D will b e HI as α functio n of incoming trigger signals and the Α Trigger and cause the output of U532C to b e LO . Flip-flop U506A mode selected . will respond to trigger signals as descri bed in the "N O RM" section . If trigger signals are not being received by U 502, the outp ut of U532D will be L O. The output of U 532C will Incoming trigger signals from the output of U480B will then be the inverse of the in put signal applied to p in 11 so cloc k U 502, α one-shot multivibrator, and cause the Q outt h at U506A will be reset when hol d off ends, causing α put to go from L O to HI . If another trigger signal is not sweep to be generated. With no new trigge r p ulses being received b y U502 within α time period determined by the applied to the circuitry, U 506A will b e continuously set and timethen constant of R 503 and C501, th e Q output will return reset in this manner to generate swee ps. L O. Wh enever trigger signals are b ei ng received, t h e 0 output of U502 will b ias on Q509 and ill umi n ate TRIG'D LE D DS518 . The output state of U 502 is used in th e Auto B aseSG L SWP. In th e Sgl Swp mode, both t he Ρ-Ρ AUTO and line circuit as desc ribed in the "P-Ρ AUTO an d TV FI ELD" NORM butto n s are o ut. This results in α LO at the output of section . U532C so that U 506A is not held reset. Α L O is also on input pin 4 of U532A . Α Swee p Logic

NORM . Wh en NO RM Trigger mode is selected, input p in 12 of U532D is h eld HI b y S401 Β, causing th e gate output to also be HI . The output of U 532C will th en b e LO and U 506A will not b e h eld reset. Input p in 4 of U532A is h eld HI by S401 C, causing the output to be L O whic h places α LO on the D input of U506A . Trigger signals received at the clock input of U 506A will then cloc k t his L O to t he Q output . During the previous h oldoff period, U506A h ad been set by U 532B so that t he Q output went L O. This b iased on Q576 and the Α M iller Sweep was p revented from running . Wh enever U 506A is clocked following holdoff by α trigger

signal, the LO on the D in put will be transferred to the Q output and the 0 output will go Hl . This will b ias off 0576 and the Α M iller Swee p will generate the sweep ramp as described in the "Α M iller Swee p Generator" section. Wh en t he ramp voltage is about 12 V, Q525 will be b iased on . The outpu t of U532B will c hange from LO to HI, setting U506A and b iasing on 0576 . With Q576 con ducti ng, h oldoff oneshot U 504B will be triggered and the Α M iller Sweep Generator will be reset to turn off Q525 .

During the previous holdoff period, U532 B had reset U506B to cause t h e Q outpu t to be L O. The D in put of U506A will therefore b e HI and cloc k signals to the gate will keep the Q output LO and t he sweep disabled . Wh en t he SG L SWP button is pus hed n, t he Q output of U504A will go LO for α time period determined by the time constant of R 504 and C504 and t hen return HI . This ΗΙ will then cloc k through t he ΗΙ on th e D in put of U506B to the Q output . Conseque ntly the output of U 532A will go LO and CR514 will be reverse biased to bias on Q511 and light the READY LE D. The next trigger p ulse app lied to the cloc k input of U506A will then initiate α swee p as descri bed p reviously. At the end of the swee p, U 506 B will again be reset, causing the TRIG'D LE D to go out an d place α HI on the D in put of U506A . Α new swee p will n ot b e initiated until the SG L SWP button is again p us hed .

i

Χ-Y. In the Χ-Υ mode of operation, the ΧΥ li ne is LO which holds the input of U532 B LO thro ugh CR 518. The output of U 532B will h old U 506A set and no swee ps can be initiated .

Wit h U504 B t riggered, the Q output changes from HI to

L O and will stay LO for α time duration dete rmine d by the

Var Holdoff circuitry and the Α SE C/DI V switch position . VAR HOL DO FF potentiomete r R9521 determines t he

amou n t of c harging current available to charge C518, C519 or C520 at pin 15 to the threshol d voltage level on p in 14 . During t h e time the Q output is LO, the set input of U506A is held HI so t h at no trigger p ulses can initiate α n ew sweep. Wh en pin 15 of U 504B reaches the thres hold voltage on p in 14, the i5 out put goes HI to end the holdoff period and release U 506A from the set condition. The circuit is th en enabled to ge nerate anot her swee p once α trigger signal is again ap plied to the clock input of U506A . Ρ-Ρ AUTO and TV FIEL D. When Ρ-Ρ Auto or TV Field is selected, the Auto B aseline co nfiguration is e nabled. Pin 12

ALTERN ATE Β S WEEP The Alternate Β Swee p circuitry, sh own on Diagram 5,

produces α linear voltage r am p t hat is amplified by th e H ori-

zontal Amplifier to provide the Β Swee p horizontal deflection on the crt. The Alternate Β Swee p circuitry also p roduces the sweep-switching signals t h at control the display of the Α an d Β Sweeps, and th e gate signals u sed by the Intensity an d Ζ-Axis circuits to establis h t he crt unblan king and inte nsity levels needed fo r p rodu cing bot h the Α Intensified and Β Sweep d isplays. The Β Sweep ramp is e n abled by the Β Sweep Logic circ uit either immediately after the end of the esta blished

3- 1 1

Theory of Operation-2235 Service delay time (Runs After Delay) or upon receipt of the first trigger signal after the delay time h as elapsed. This delay time is α function of the Β Delay Time Position Comparator circuit and the Α sweep. Β

Miller Sweep Generator

T he Β M iller Sweep Generator is composed of 0709, 0710 Α, 0710 Β, Q712, and associated timing components. This circuit produces the Β Sweep and functions in the same manner as the Α M iller Sweep Generator; see the "Α M iller Sweep Generator" section for α description of circuitry operation . The output at the collector of 0712 drives the Horizontal Amplifier and Q643 . Β Trigger Level Comparator The Β Trigger Level Comparator is composed of transistor array U 605, U 625C, Q619, and Q620 . This circuit determines both t he trigger level and slope at which t he Β triggering signal is produced. It functions in the same manner as the Α Trigger Level Comparator with the exclusion of the TV Trigger and Trigger View circuitry. See the "Α Trigger L evel Comparator" section for α d escription of the circuit operation . Buffering of the inverting and noninverting outputs of U625D is provided by U 625A and U625B, and Q630 and 0631 level shift the signals to TTL levels . The circuit output at the collector of Q630 su pplies trigger signals to clock U670A. Runs After Delay The R uns After Delay circuit allows the Β Sweep Logic to generate α Β Sweep independently of any Β Trigger signals. In the R uns After Delay mode, Β T RIGGER LEVEL control R 602 is rotated fully clockwise. This b iases off 0637 and p laces α L O on the collector. Inverter U 660D will then h ave α HI output with resistor R 640 providing positive feedback . The output of U660A will therefore be L O and U670A will be h eld set with the Q output LO. If the Β TRIGGER LEVEL control is not fully clockwise, 0637 is b iase d on and t he Β Sweep is in the triggered mode . The output of U 660D will b e LO, the output of U660A will be HI, and U670A will no longer b e held set. Operation of the Β Sweep Logic circuitry under both of these conditions is d escribed in the "Β Sweep Logic" d iscussion . Β Delay Time P osition Comparator T he Β Delay Time P osition Comparator circuit compares the amplitude of the Α Sweep sawtooth output voltage to the do voltage level set by Β DELAY TIME POSITION ρο -

3- 1 2

tentiometer R6440 . The output of the comparator is used to initiate α Β Sweep and to control the Β Ζ-Axis Logic circuit switching. The inputs to the comparator, U655, are the wiper voltage of R9644 and the Α Sweep voltage from the d ivider network composed of R 651, R 652, and R 653. Input voltage ranges to the com p arator are determined by VR645 and R 646 for the noninverting input and by R 652 for the inverting input. Delay Start potentiometer R646 is adjusted in conjunction with potentiometer R652 to set the Β DELAY TIME POSITION dial calibration . The out p ut of the comparator is enabled or d isab led by the strobe signal connected to p in 6. When the Α Only signal is HI, the comparator is enabled . When Α Only is LO, the output of the comparator is α high impedance and t herefore α HI is present on p in 9 of U680C . Β Swee p

L ogic

The Β Swee p Logic circuitry utilizes signals from the associated Β Sweep circuitry to generate control signals for both t he Β M iller Swee p and the Β Ζ-Axis Switching Logic circuits . In the R uns After Delay mode, U 660A p laces α LO on the S input of U 670A . During the previous holdoff period, U680D p in 13 strobed L O. The output of the flip-flop composed of U680C and U680D went Hl and the output of U660F went L O. W ith both t he S and R i nputs of U 670A LO, the 0 output is HI to bias on 0709 and prevent the Β Miller Sweep from running. Once the Α Sweep voltage at U655 pin 3 exceeds the voltage at pin 2, the comparator output will go LO. The flip-flop composed of U 680C and U680D will change output states and cause the R i nput of _U670A to be HI . The LO on the S in put will then cause the 0 output of U670A to go LO. This will shut off Q709 and the Β M iller Sweep Generator will p roduce α linear ramp . If the ramp voltage reaches about 12 V, sweep-end comparator 0643 will turn on and cause the output of U 665D to go HI . The Β Miller Sweep Generator will continue to run, but the trace will b e blanked because the Β Gate line is HI which reverse b iases CR817. Once the ramp is at approximately 13 V, VR712 will conduct and prevent the voltage from increasing further. The Β Sweep Generator will be reset for another sweep by one of two means. If the Α Sweep doesn't end before the Β Sweep, the Generator will not be reset until the Alt Sync line goes from HI to LO to change the U 680C-U680D flip-flip output states . The R input of U670A will then be LO, causing the ( λ output to be HI and reset the Generator. Depending on the settings of the Α and Β SEC/DIV switches, the Α Sweep may end b efore the Β Sweep. If this occurs, the Alt

Theory of Operatio n-2235 Service Sync li ne will go LO at the end of the Α Sweep and cause an immediate resetting of the Ge nerator. In either case, α new sweep will be initiated the next time the Α Sweep voltage at U655 pin 3 exceeds the voltage at pin 2.

output states, two Α Sweeps are requ ired to cause the flipflop output levels to switch. Wit h t his switching arra ngement, the crt will first display the two Α Inte nsified Swee ps and then the two Alternate Β Swee ps.

Wh en not in the Ru ns After Delay mode, th e out put of Β Ζ-Axis L ogic U660A is HI an d U670A has α HI on both t he S and D The Β Ζ-Axis Logic circuitry switches signal current levinputs . The circuitry co nnected to t h e R input of U670A to drive the Ζ-Axis Amplifier for both the Β and the Α els F functions as descri bed above. When the output of U660 Intensified Swee p displays . The current supplied is summed goes HI, U670A is no longer hel d reset and th e fi r st Β trigger the ot her signal inputs on the Ζ-Drive line . with signal from the collector of Q630 will cloc k t h roug h th e ΗΙ on the D in put . The 0 outpu t of U 670A will t h e n go LO and α Β Sweep will be initiated . When t he HOR IZONTAL MOD E switch is in t he ALT position, pin 5 of U665 B is ΗΙ . The outputs of U 670B and t he Β Gate signal from t he out put of U 665D together with t he IN Alternate Display Switchi ng Logic TEN SITY controls determine the intensity of the Α an d Β Swee ps. The Alternate Display Switching Logic circ uitry controls H orizontal Am plifier sweep switching and t he Β Ζboth the Axis Logic switching. Wh en the Α Swee p is displayed, the Q output of U 670B is HI and the U output is L O. These output levels will bias on Q680 and bias off 0685 . The emitter voltage of Q680 will HORIZO NTA L MOD E switch S648 selects the in pu t logic reverse bias CR817 to prevent Ζ-Axis drive current from levels th at are applied to the circ uitry . In the Α Horizontal flowing throug h the diode. With Q685 off, additional Ζ-Axis Mode, the S input of U 670B is L O and the R input is HI . This current to intensify the Α Swee p will be supplied whenhdrive olds U670B set and allows only the Α Sweep to be p asse d ever CR685 is biased off. Si nce in put pin 5 of U 665 B is HI, h H orizontal Am plifier . the Β H orizontal mode, the set to t e In t he gate output and therefore the conduction state of in p ut of U670B is HI and the reset input is LO to hol d C R685 is determined by U 665B pin 4. Wh enever the Β U 670 B reset and allow only the Β Sweep to reach t he HoriSweep is running, the output of U665D will be LO. Th is will zo ntal Am plifier . cause the output of U 665B to also be L O an d C R685 will be b iased off. If the Β Swee p is not ru nning, the o utpu t of U 665B will be HI an d CR685 will b e biased on . This will b ias Wit h S648 set to ALT, and for all settings of the VERTIoff CR816 an d the Α Sweep will not b e intensified . V signal αρCA L MOD E switches exce pt BOTH-ALT, the ~lt plied to U 660E and the S and R inp uts of U670B are all HI . The L O output of U660E causes the outp ut of U680B to be If the outputs of U670B are set to d isplay the Β Swee p HI, and whenever the Alt Sync signal app lied to p in 1 goes (Q L O and Q HI), 0680 will be b iased off and Q685 will be L O, t h e gate outp ut will change from L O to HI and clock biased on . Th e emitter voltage of Q685 will reverse b ias 670B. The outputs of U670B will therefore toggle with U CR816 to prevent Ζ-Axis drive cu rrent from flowing through each Alt Sy nc signal transition to alte rnately enable the Α the d iode . With 0680 off, the Β Swee p will be displaye d if and Β Sweeps to reac h t he Horizontal Am plifier . Whenever CR680 is reverse biased . Wh enever the Β Sweep is running, the Β Swee p is selected for the Horizontal Amplifier, the 0 the output of U665D is L O. Diode CR680 will then be re670B will be HI This HI is app lied to U665C p in output of U . ve r se biased an d Ζ-Axis drive current will flow throug h p signal from U 665C 9, and since pin 10 is also ΗΙ , the Se CR817. If the Β Swee p is n ot running, the output of U 665D will be LO to enable the Α/Β Sweep Se paration circuitry . is HI, forward biasing CR680 and therefore reverse biasing CR817. No Ζ-Axis d rive cu rrent can then flow throug h CR817. n h H 2 VERTICA L MOD E switch is Wh e t e C 1-BOTH-CH set to BOTH, th e ADD-ALT-CHOP switch becomes funcV signal tional . In t h e ALT VERTICA L MOD E positio n, the ~lt is LO, t h e H alt signal is HI, an d the CH 1 Selected signal is α TT L square wave th at switches states at the end of the Α H ORIZONTA L Swee p . Inp ut p in 4 of U 680B will be HI and t he gate outpu t will b e the inverse of the CH 1 Selected signal . This output The Horizontal Am plifier ci rcuit, s hown on Diagram 6, signal is NANDed with t he Alt Sy nc signal by U 680A to provides the output signals that d rive t h e horizontal crt decloc k U670B . Wh enever the Alt Sync signal goes L O at the flection plates. Signals applied to t h e H orizontal Pream plifier end of α sweep and the Ch 1 Selected signal switches from ca n come from either the Α or the Β Miller Swee p Ge nerator L O to HI, U670B will be clocked. Since only p ositive transi(for swee p deflectio n) or fr om th e ΧΥ Am plifier (w hen Χ-Υ tions on the cloc k i np ut will cause the flip-flop to change display mode is selected). Sweep switching is under control

Theo ry of Operatio n-2235 Service of the Alternate Display Switc h ing Logic ci rcuit . See F igure 3-4 for th e block diagram of the H orizontal Amplifier. The Horizontal POSITION co ntrol, Χ10 M agnifier circ uitry, and the h orizontal portion of t he Beam Find circuitry are also co ntained in th e Horizontal Am plifier circuit.

Χ-Υ Amplifier

H o rizontal P ream plifier Th e Horizo ntal Preamplifier selects d is play mo des and am plifies in p ut signals fo r app lication to the Horizontal Outp ut Am plifier . The Α and Β Swee ps, selected by U670 B in the Alte rnate Swee p circuitry, are applied to the emitters of 0742 and Q732 respectively through gain pote ntiometers R 740 and R 730. Th e transistors are biased into the active or cutoff regions by the co n trol voltage applied at the cathodes of CR732 and CR 742. Switching between the Α a nd Β Swee ps occurs within U760, with α negative input at p in 10 or 9 disconnecti ng the respective swee p from the rest of the amplifier. The Horizontal POSITION control adjusts the crt trace position throug h p in 14 . Output bias current levels are set b y R 751 at pin 5 and frequency compensation for Χ-Axis sign als is p rovided by C751 conn ected to pi n 13 .

FR OM Α SWEEP GENER ATOR

Α SWEEP

FR OM Β SW EEP G ENER ATOR

Β

FR OM AL TERNAT E D I SPL AY S W I TCH I N G L OGIC

S WEEP

Α DI SP Β ρΙςρ

FR OM Α TR I GG ER

X-AXIS SIG N A L

FR OM Α S E C/DI V S W ITC H

ΧΥ

H orizontal X10 Gain is set by th e resistor n etwork con nected between p ins 3 and 6 . When th e X10 M ag nifier is on, S721 is closed and t h e timi ng adjustment is made usi ng R 754. M agnifier registration is adjusted by R 749 so that there is no horizontal trace shift wh e n switching between the X10 M ag nifier on and off positio n s.

Th e Χ-Υ Am p lifier am plifies the Channel

1 signal from the Trigger ci r cuitry fo r a pp lication to the H orizontal Pr eamplifier . I nternal

Wh en th e Χ-Υ mode is selected, 0737 is biase d on to esta blish α HI on U760 p i n 12 so t h at the Α and Β Sweeps are disconnected from th e Preamplifier outputs. The ΧΥ sigηαΙ line will be LO and Q756 will be biased off to enable the Χ-Axis signal to drive the noninverting input of U758 . The output of U 758 will t h e n be α f unction of the Χ-Axis signal and the Horizontal POSITIO N control wiper voltage. The ΧAxis signal gain is adjuste d by R 760 and the input voltage from t h e Horizontal POSITION control at p in 14 is d isconn ected within U760 so that it d oes not affect the Preamplifier output . The input signal at p in 11 from U758 will be converted to α d ifferential output signal an d ap plied to the Horizontal Output Amplifier.

SWEEP

SW ITC H I N G Q732 Q742

H OR IZ

X-AXIS A MPL U758

ΧΥ ~ EN ABLE 8737

OU T PU T

ΗΟ R ΙΖ PRE A MP U 76 θ

AMPL

ρ77 θ > Q78θ Q775, Q779 Q785, Q789

FR OM Z-AXIS A MPL

TO C R T

H O R IZ D EFLE CT I O N PL AT ES

BEAM

F I ND

42 θ6-11

F ig ure 3-4 . B lock d iag ram of t h e H o r izo ntal Am p lifie r .

Th eory of Operatio n-2235 Service Wh en the Χ-Υ mode is not selected, Q756 is biased on and t he Χ -Axis sign al is s hunted to ground. Horizontal Out p ut Am p lifier The Horizontal Output Am plifier provides final amplification of t h e h orizon tal sign al to d rive th e horizontal crt deflection plates . Signals from the (+) and (-) sweep outputs of U760 are used to drive two shunt-feedbac k amplifiers . Due to the feedback, the input im p edance of th ese am plifiers is low. Th e base voltages of Q770 and Q780 are at n ea rly the same do level due to forward-biased diodes CR 765 an d CR 768 between th e two emitters . Transistors Q770, Q775, and Q779 form α cascode-feedbac k am p lifier fo r driving th e right crt horizontal deflection plate with R775 setting amplifier gain and C775 providing h ig h-fre qu ency compensation . For low-speed signals, Q779 serves as α current source for Q775, and at hig h sweep rates, the ramp is coup led thro ugh C779 to the emitter of 0779 . Th is provides additional pull-up output cu rre n t to drive the crt at h ig h sweep rates. Th e amplifier consisting of 0780, 0785, and Q789 drives th e left crt h orizontal deflection plate in the same ma n ner as desc ri bed above with zener diode VR 782 level shifting t he collector signal of Q780 . The BEAM FIND function is im plemented wh en S390 is pu shed in to disconnect the cathode of CR764 from th e -8 .6 V supp ly . Th e voltage on th e cat h ode of VR 764 goes positive, causing C R 780 and CR770 to be forward biase d. Current from R 764 causes the output commo n-mode voltage of the two shunt-feedbac k am plifiers to be shifted negative to reduce the availa ble voltage swing at th e crt p lates. This prevents the trace from bei ng deflected off-screen h orizo ntally.

Z-AXIS AMPL I F I ER The Ζ-Axis Am plifier, shown on Diagram 7, controls the crt inte nsity level via several input-signal sou r ces. The effect of these in p ut signals is either to increase or dec rease tr ace intensity or to completely b la nk portions of the dis p lay. Th e Ζ-Drive signal current as determined by th e Α and Β Ζ-Axis Switching Logic and the input current from the ΕΧΤ Ζ AXIS I NPUT connector (if in use) are summed at the emitter of common-base amplifie r 0825 and th ereby determi ne t h e collecto r current of the stage. This transistor provides α lowimpedance termination for the in p ut signals and isolates the signal sources from following stages of the Ζ-Axis Am plifier . Common-base transistor Q829 esta blishes α constant cu rrent thro ugh R 832 . Th is curre n t is d ivided between Q825

and Q829 with t he portion thr ough Q829 d riving the shunt feedbac k output amplifier consisting of 0835, Q840, and Q845. The bias level of Q825 therefore determi nes the amount of emitter current available to Q829 . Feedback-resistor R 841 esta blishes the transresistance gain whic h converts the input current to outpu t voltage. Emitter-followe r Qg35 is do coupled to Q840, and for low-speed signals 0845 acts as α cu rrent source . Fast transitions couple throug h C845, providing additional current gain t hrough Q845 for fast voltage swings at the outp ut of the Amplifier. External Ζ-Axis input voltages establis h proportional inpu t currents through R822 and R 823, and Am p lifier sensitivity is determined b y the transresista nce gain of the shunt-feedb ac k amplifier . Diode CR823 protects the Ζ-Axis Am plifier if excessive signal levels are applied to the ΕΧΤ Ζ AXIS INPUT connector. The intensity of the crt display in the Α, Β, an d Alt Horizontal modes is determined b y the INTEN SITY controls and associated circuitry. The Α NTEN SITY potentiomete r controls the base voltage of Q804 to determine the amoun t of emitter current th at will flow t hroug h the transistor and t herefore the level of the Ζ-Axis signal . L ikewise th e Β INTENSITY p otentiomete r will co ntrol the b ase voltage of Q814 and the intensity of t he Β and Alt Sweep displays .

I

When only the Α Sweep is displayed, Q586 and CR 583 are biased off. The current throug h R818, as set by the Α I NTEN SITY potentiometer, will flow through CR 818 and Q825 to fix the voltage level at the Ζ-Axis Amplifier outp ut. For α Β-only d is play, Q586 is biased on to reverse b ias CR818 and preve nt Α-i nte nsity current from reaching Q825 . Current dete rmined b y the b ase voltage of 0814 will flow through CR 817 to Q825 and d etermi ne the Β Swee p intensity . For an alternating Α and Β display, Q586 will be biased off when the Α Sweep is d isplayed. During the portion of the Α Sweep in whic h the Β Sweep r un s, current from R816 is allowed to flow throug h CR816 b y the Β Ζ-Axis Logic circuit to provide an intensified zone . Wh en CHOP VERTICA L MOD E is selected, the Chop

B la nk signal is applied to the collector of 0825 through

CR824 during the display-switching time . Signal cu rrent is shunted away from CR825, and the forward b ias of 0829 increases to the b la nk ing level. When blan ked, the outpu t of the Ζ-Axis Am plifier d rops to α level that reduces the crt beam current below viewing intensity during the chop switching transition . For an Χ-Υ d isplay, C R818, CR817, and CR816 are reverse biased . The Χ signal is L O to reverse b ias CR551 and allow current in R 820 to flow throug h CR 820. The crt intensity is then controlled by the Α NTEN SITY pote ntiometer which sets the current in R820 thro ugh 0804 .

I

Th eory of Operation-2235 Service BEAM FIN D switch S390 co ntrols the b ase bias voltages of Q825 and Q829 . Wh en the BEAM FI ND bu tton is out, -8 .6 V is su pplied to α base-biasing network. Wh en the button is pus hed in , the -8 .6 V su pp ly is removed and the voltage at the anode of VR 828 rises to about -5 .6 V . This turns off Q829 so that the amplifier outpu t voltage is determined b y R835 an d the voltage at the BEAM F IND switch, as set by other p arts of the Beam F ind circuitry. The output voltage of 0835 will then be at α fixed level so that the INTEN SITY controls an d the Ζ-Drive signal have no co ntrol over the crt intensity. Α bright trace or dot will then be displayed.

voltage will b e clampe d wh enever the positive peaks reac h α level that forward biases CR 851 . Th e Ζ-Axis Amplifier outp ut voltage, whic h varies between +10 V and +75 V, is applied to the Dc Restorer at the anode of CR853. The ac-drive voltage will hold CR853 reverse b iased until th e voltage falls below the Ζ-Axis Am plifier output voltage level. At th at poi nt, C R853 becomes fo rward biased an d clamps the j unction of CR851, C R853, and R854 to th e Ζ-Axis output level . Thus, the ac-drive voltage is clampe d at two levels to produce α square-wave signal with α positive dc-offset level.

Dc R estorer

The Dc Restorer is refere nced to the -2 kV crt cathode voltage thro ugh R858 an d CR 854. Initially, bot h C855 a n d C854 will charge up to α level determined by the d iffere n ce between the Ζ-Axis output voltage and the crt cathode voltage. Capacitor C855 ch arges from t he Ζ-Axis output th rough R 858, C R854, and CR 855, to th e crt cat h ode. Ca pacitor C854 charges throug h R 858, C R854, R 854, an d CR853 to the crt cathode.

The Dc Restorer circuit p roduces the crt co ntrol-grid b ias a nd couples both d o and ac components of the Ζ-Axis Amplifier output to the crt control grid. Direct coupling of the ΖAxis Amplifier output to the crt control grid is not em ployed d ue to the hig h potential d ifferences involved. Refer to Figure 3-5 during the following discussion . Ac drive to the Dc Restorer circuit is obtained from pin 16 of Τ948. Th e drive voltage has α pea k amplitude of about ± 100 V, α frequency of about 20 kH z, and is coupled into the Dc R estorer circuit through C853 and R853 . The cathode of CR 851 is biased by the voltage applie d from the wi per of Grid B ias p otentiometer R851, and the ac-drive

Z-AXIS O U T PU T

+10V

During th e positive transitions of the ac d rive, from the lower clam ped level toward th e h ig her clamped level, the charge on C854 increases due to the rising voltage . The voltage increase across C854 is equal to the amplit ude of the positive transition . The negative transition is co upled

C855

C R 853 SΖ

+1 φφ V

CR 855 - +85 V

C R 851

-+10 V R 854

C854 CR854

AC D R IVE V O L TAG E FRO M T940, PIN 15

+100V 0-1 θθν -

8858 CAT H OD E V O L TAG E ~_ S UPPL Y (1--2kV )

CO NT ROL SΖ

Ι

R 86 φ 5

6 .2 Μ

(" ) DS856 _j"

GRID

Ι CATHOD E

DS858

C979 177 4206-14

Fig ur e 3- 5. Simplified diagram Of the Dc Resto rer ci rcuit .

Th eory of Ope ratio n-2235 Service

throug h C854 to reverse bias CR854 and to forward b ias

CR855. The increased charge of C854 is then transferred to C855 as C854 discharges toward the Ζ-Axis output level. Successive cycles of the ac input to the Dc R estorer will charge C855 to α voltage equal to the initial level p lus the amplitude of the clam ped square-wave in put . The ad ded charge on C855 d etermi nes the control-grid b ias voltage. If more charge is added to that already present on C855, the control grid becomes more negative and less crt writing-beam current will flow . Conversely, if less charge is add ed, the control-grid voltage level will be closer to the cathode-voltage level and more crt writing-beam current flows. Duri ng periods that C854 is charging, the crt cont rol-g rid voltage is h eld constant by the long time-constant discharge pat h of C855 throug h R860.

Fast-rise and fast-fall transitions of the Ζ-Axis output signal are coupled to the crt co ntrol grid thro ugh C855 to start the crt writing-beam current toward the new intensity level. The Dc Restorer output level then follows the Ζ-Axis outputvoltage level to set the new b ias voltage for the crt control grid. Neon lamps DS858 and DS856 protect the crt from excessive grid-to-cathode voltage if the potential on either t he co ntrol gri d or the cathode is lost for any r eason.

P OWER S UPPLY AND

PR OBE ADJU ST

The Power Sup ply ci rcuit ry converts the ac p ower-line voltage into the voltages needed fo r instrumen t operatio n. It con sists ο1 t he Power In put, Preregulator , and Inverter ci rcuits (wh ic h drive the p rimary of the powe r transformer) and secon dary circuits (w hic h produce the n ecessary su pp ly voltages for th e inst r ument).

P ower Input The Power Input circuit converts the ac power-line voltage to filtered do for use by the Preregulator. POWER switch S901 connects t he ac power line thr ough fuse F9001 to the b ri d ge rectifier com posed of CR901, CR902, CR903, an d CR904. Th e b ri dge full-wave r ectifies t he source voltage, an d t h e output is filtered by C906. Input surge current at the time of instrument power-up is limited by thermistor RT901 . The thermistor resistance is moderately h ig h when the power is first turned on, but decreases as the in pu t current warms the d evice . The instrument is

p rotected from large voltage transients by su pp ressor VR 901 . Conducted interference originating within t he power supply is attenuated by common -mode transforme r Τ901, differential-mode transformer Τ903, line filter FL9001, and capacitors C900, C901, and C902 . Pr eregulator The Preregulato r provides α regulate d do output voltage for u se by the Inverter circuitry. Wh en the instrument is turned on, the voltage developed across C906 will charge C925 thro ugh R926. When the voltage h as risen to α level h igh enough t hat U930 ca n reliably d rive 09070, U930 will receive operating su pply voltage t h roug h Q930 . Th is level is set by zen er d iode VR 925 in t he emitter of Q928 and b y the voltage divide r consisti ng of R925 an d R927. T he ze ner d iode will k eep Q928 off until the b ase voltage reaches approximately 6.9 V . Then Q928 will b e biased into conduction and the resulting collecto r cur rent will cause α voltage drop across R929. This voltage drop will b ias on Q930, and the p ositive feed bac k t hrough R930 will reinforce the turn-on of Q928 . Thus Q930 and Q928 will drive each ot her nto saturation very qu ickly . Once Q930 is on, U930 will begin to fu nctio n.

i

P ulse-width modulato r U930 controls the output voltage of th e Preregulator b y regulating the du ty cycle of the pu lse ap plied to th e gate of Q9070. It utilizes an oscillator with the frequency determined b y R919 and C919 (a pp roximately 60 kH z) and with α sawtooth output voltage at p i n 5. This sawtooth voltage is com p ared internally with t he output voltage produce d b y the two erro r am plifiers. Wh enever the sawtooth voltage is greater than the error amplifie r o utpu t voltage, Q9070 is b iased on to supply current to both C940 and the rest of the circuitry. The two error am plifiers maintain α constant outp ut voltage and monito r the output current of the Preregulator. One inpu t of each am plifier is connected thro ugh α divi der network to the IC internal +5-V reference . The output voltage of the Pre reg ulator is monitored by the voltage divider at p in 2. The voltage drop across R907, produce d by th e P reregulator output cu rrent, is app lied to the cur re nt limit amplifier at p in 16 .

When the instrument is first turned on, the current limit amplifie r co ntrols the conductio n time of 09070. Wh ile Q9070 is cond ucting, the outpu t current increases until α sufficiently la rge voltage drop is d eveloped across R907 to invoke the current-limit mode. The current limit amplifie r holds the output current below the current-limit thr eshold of a pp roximately 1 Α. When the voltage across C940 reaches app roximately 43 V, the voltage am plifier starts co ntrolling the duty cycle of 09070 and t he Preregulator will n ot limit current unless there is excessive current dema nd .

Theory of Operation-2235 Service W it h Q9070 off, C907 charges to the output voltage of the Power Input circuit. Wh en Q9070 turns on, current thr ough the FET will come from the winding connected to pins 1 and 2 of Τ906 and from C907 . Cu rrent to C907 is su pplied by the winding co nn ected to pins 4 and 5 of Τ906. Wh en U930 ot shuts off Q9070, the collapsing magnetic field will raise the voltage at the anode of CR907. This diode then becomes forward biased and passes the currents supplied by C907 and the winding co nnected to pins 4 and 5 of Τ906. For this part of the cycle, current to C907 will be supplied by the winding co nn ected to pins 1 and 2 of Τ906. This process will contin ue for each period of the oscillator, and the du ty cycle co ntrolli ng the conduction period of Q9070 will be altered as necessary to maintain 43 V across C940 . To shut off Q9070 duri ng each oscillator period , 0908 is used to discharge the gate-drain capacitance . Pin 10 of U 930 goes LO, reverse biasing CR908 and turning on Q908 to shut off the FE T.

p ositive voltage from the lead of Τ944 whic h is co nn ected to the b ase of the cond ucting transistor and reinforce condu ction . E ventu ally Τ944 will saturate, and as the voltage across Τ944 (and Τ948) begins to reverse, the co nd ucting transistor will cut off b ecause of the drop in base d rive . The her transistor will not start conduction un til the voltage on

the leads of Τ 944 reverse enough to bias it on . This process will continue, and t h e saturation time of Τ944 p lus the tran-

sistor-switc hing time will determine the frequency of Inverter operatio n (typically 20 kHz) . After the initial Inverter start up, the switching transistors do not saturate ; they remain in t he active region during switching.

Diodes CR946 a nd C R947 serve as α negative-pea k detector to generate α voltage for controlling the output of the error amplifier . Capacitor C943 charges to α voltage equ al to the negative peak voltage at the collectors of 0946 a n d Q947, referenced to the Preregulator input voltage. Th is voltage level is applied to the divider composed of R 937, Once the supp ly is running, power to U930 will be supR 938, and R 939. The error amplifier, composed of 0938 p lied from the wi nd ing connected to p ins 6 and 7 of Τ906. an d 0939, is α d ifferential amplifier that compares the referDiode CR920 h alf-wave rectifies the voltage across pins 6 ence voltage of VR 943 with t he voltage on the wi per of potentiometer R938. The current through Q939 will set the a nd 7 to keep filter capacitor C925 charged an d to maintain b ase drive of Q944 and thereby control the voltage on su pply voltage to U930 through Q930 . C944 . This voltage will bias Q946 and Q947 to α level that will maintain t h e pea k-to-peak input voltage of T948 . The Instrument protection from excessive output voltage is am plitude of the voltage ac ross the transformer primary supplied b y silicon-co ntrolled rectifier 0935 . Should the wi nding, an d t hus t h at of the secondary voltages of Τ948, is Preregulator outpu t voltage exceed 51 V, ze ner diode set b y adjusti ng -8 .6 V Ad j potentiometer R938. VR935 will conduct, causing Q935 to also co nduct . The Preregulato r output current will then be shunted thro ugh Q935, and t he output voltage will very q uickly go to zero . At turn on, Q938 is b iased off and Q939 is biased on . All W ith t he supply voltage of U930 no longer being provided b y the current of the error amplifier will then go through Q939 the winding connected to pins 6 and 7 of Τ906, t he to bias on Q944 . Diode CR945 allows the b ase of Q944 to Preregulator will shut down and 0935 will be reset . The go positive enoug h to initially turn on Q946 or Q947 . The supply will then attempt to power up, but may again shut current throug h Q944 controls the b ase drive for Q946 a n d down if the overvoltage cond ition is again reac hed . This seQ947 . B ase current provided by base- drive transformer quence continues is until the overvoltage conditio n Τ944 will c h arge C944 negative with respect to the Inverter corrected . . ci rcuit floati ng ground (common) level. InverterCrt Supply The Inverter circuit changes the do voltage from the Pr eregulator to ac for use b y the su pplies that are connected to the secondaries of Τ948. The output of the P rereg ulator circuit is applied to the ce n ter tap of Τ 948. Power-switc hing transistors Q946 and Q947 alternate conducting current from the Pre regulator outpu t throug h the primary windings of Τ948. The transistor switching action is controlled b y Τ944, α saturating basedrive transforme r. Wh en t h e instrume nt is first turned on, one of the switching transistors will start to conduct and its collector voltage will d ro p toward the common voltage level. This will induce α

Hig h-voltage multiplier U 975 u tilizes the 2-kV winding of Τ948 to generate 12 kV to drive the crt anode. It also uses an internal half-wave rectifier diode to produce -2 kV for the crt cathode. Th e -2 kV s upply is filtered by a low-pass filter com p osed of C975, C976, R 976, R978, and C979 . Neon lamp DS870 protects agai nst excessive voltage b etween t h e crt h eater and crt cathode by cond ucting if the voltage excee ds app roximately 75 V .

Focus Circu it

F ocus voltage is also developed from the -2 kV supply via α voltage divider com p osed of R894, R 892, FOC U S ρο tentiometer R 893, R891, R 890, R 889, R888, and Q885 . The focus voltage trac ks the Α-intensity level throug h t he action

Theory of Operatio n-2235 Service V su p ply is produced by CR967, CR970, C968, R 971, and of Q885 . The emitter voltage of Q804, set by the Α ΙΝΤΕΝ . SITY C970 control, is ap p lied to the emitter of Q885 t h rough R 885. Wh en the emitter voltage of 0804 changes, t h e curProbe Adju st re nt throug h Q885 changes p roportionally and alters the voltage at one end of FOC US control R893. The Pro be Ad just circuitry, shown on diagram 6, utilizes α s quare-wave generato r an d α diode switching n etwork to p roduce α negative-goi ng square-wave signal at PR OBE L ow-Voltage Su p plies AD JU ST connector J 9900 . Amplifier U 985 is co nfigured as The low-voltage su pplies utilize center-tapped secondary α multivi brator with t he time constant of R987 and C987 ning the oscillation p eriod. Wh en the outpu t of the determi windings of Τ948. The +100 V su pply uses CR954 an d CR955 for rectification and C954 for filtering. Diodes CR956 multivibrator is at the positive supp ly voltage, CR988 is forand CR957 rectify ac from ta ps on the 100 V winding, and ward biased. Th is reverse biases CR989 and the PROBE C956 filters the output to p roduce +30 V dc . The d iode ADJU ST connector signal is h eld at ground potential by bridge consisting of CR960, CR961, CR962, and CR963 R 990. Wh en th e multivibrator output switches states and is produces the +8 .6 V an d -8 .6 V su pplies. F iltering of the at t h e negative s upply voltage, CR988 is reverse b iased. ring Diode CR989 will now be forward biased and the circuit .6 V is accom p lished b y C960, C962, and L 960; filte +8 of the -8 .6 V is done by C961, C963, and L961 . The +5 .2 output signal be a pproximately -0 .5 V.

Sectio n 4-2235 Service

PERFORMANC E C HECK PROCED URE

IN T R OD U CTIO N PURPOSE

TEST E QU I PMENT

The "Performance Chec k Procedu re" is used to verify the Performance R equirement statements listed in Table 1-1 . It is th e recommended acce ptance chec k procedure for n ew instruments .

The test equi pment listed in Table 4-1 is α complete list of the equipment re quired to accomplish both t he " Performance Check Procedure" in t his section and t h e "Adju st ment Procedure" in Sectio n 5 . To assure accurate measurments, it is im portant that test equi pme nt u sed for making these chec ks meet or exceed the specifications described in Table 4-1 . When considering u se of equi pment oth er th an that recommended, u tilize the " Minimum Specification" column to d etermine whet her availa ble test equi p ment will suffice.

I nstrument performance should be checked after every 2000 h ours of operation or once each year, if used infreq uently . Α more frequent interval may b e necessary, if your inst rument is subjecte d to harsh environments or severe usage. The results of these periodic checks will dete rmine the n eed for readjustment. Selected procedures may also be used as p relimi nary troub leshooting aids or to verify instrument p erforman ce after repair or component re placement .

ST RU CT URE This procedure is structured into four major subsections, each of whic h can be p erformed in dependently, to p ermit chec king individual portions of the instrument. At th e beginning of each subsection t here is an equipme nt-requi r ed list showing only the test equi pme nt necessary for perfo rming the steps in that su bsection. In this list, the Item nu mber that follows each p iece of equipment corresponds to the Item number listed in Table 4-1 . Also at the begi nn ing of each subsection is α list of all th e front-panel control settings required to p re pare t he instrument for performing Step 1 in t h at subsection. Eac h succeeding step within α particu lar subsection should then b e performed, both in the se quence presented and in its entirety, to ensure that control-setti ng c hanges will be correct for ensuing steps.

Eac h procedure in this section is written using the control and connecto r nomenclature imprinted on the "recommend ed" test equ ipment . Wh en su bstitute equ ipment is use d, control settings stated in the test setup an d i n t he p rocedu re itself may n ee d to b e altered. Detailed o perating instructions for test equ ipment are not given in this procedure. If more operating informatio n is r e quired, refer to the appro priate test-equipment in struction manual .

L I MITS AN D TO LERANC ES The tolera nces given i n t his p rocedu re are valid for an instrument that is operating in and h as been previously calibrated i n an ambient temperature between +20°C and +30°C. The inst rume nt also must have h ad at least α 20minute warm-up p e r iod. Refer to Ta ble 1-1 for tolerances applicable to an inst ru men t t hat is operating outside this temperature range. All tolerances specified are for the instrume n t only and do not incl ud e test-e quipment error.

Perfo rmance Chec k Procedur e-2235 Service PREPARATIO N FOR

CHE CKS

It is n ot necessary to remove the instrument cover to accomplish any su bsection in t he "Performance Chec k Procedure", si nce all c hec ks are made using op erator-accessible front- and rear-panel cont rols and co nnecto rs. Test equi pment items 1 throug h 8 in Table 4-1 are require d to accomplish t he complete Performance Ch eck Proced ure.

B efore p erforming any procedu re in this section, set the P OWER switch to ON an d allow α 20-min ute warm-up p erio d.

The most accurate display ad justments are made with α stable, well-focused , low-intensity display. Unless ot herwise noted, adjust the INTEN SITY, F OC U S, and TR IGG ER LEVEL controls as needed to view the display .

Table 4-1 Test Equipment R equ ired Item No . a nd Desc ription 1 . Cali bration Gen erator

M inim um Specificatio n Standard-amplitude signal levels : 10 mV to 50 V . Accu racy: ±0 .3%.

Purp ose

E xamples of Su itable Test Equipme nt

Vertical and horizontal checks

TEKTRONIX PG 506 Cali bration Ge nerator.a

and adjustments.

High-amplitu de signal levels : 1 V to 60 V . Repetition rate: 1 kH z.

Fast- rise signal level : 1V . R epetition rate : 1 MH z R ise time : 1 ns or less

Flatness: ±0 .5%. 2. Leveled Sine-Wave Generator

Freque ncy : 250 kH z to above

Vertical,

horizontal, and triggering c hec ks and ad j ustmen ts . Display adjustment and Ζ Axis c h ec k.

TEK TRO NIX SG 503 Leveled Sine-Wave Ge nerator .a

3. Time-M ar k Generator

M ark er outputs: 10 ns to 0.5 s. M ar ker accuracy : ±0.1% . Trigger output: 1 ms to 0.1 μs, time-coincide nt with mar kers.

Horizontal chec k s and adjustmen ts . Display adju stment .

TEKTRON IX TG 501 TimeMark Ge nerator.a

4 . Ca ble (2 re qu ired)

Im pedance : 50 Ω. L engt h: 42 in . Co nnectors : BN C .

Signal interconnectio n .

Tektronix Part Number 0120057-01 .

5. Termination (2 re quired)

Im p edance: 50 Ω. Con nectors : BN C.

Signal terminatio n.

Te ktronix Part N um ber 0110049-01 .

6. Dual-Input Coupler

Co nn ectors : BN C- Female-toVertical checks and Dual-BN C male . ~ adjustments

Te ktronix Part Num ber 0670525-01 .

7. 10 Χ Atte nuator

Ratio : 10Χ. Im pedance : 50 Ω. Vertical compensation an d Connectors : BN C. I t riggering check s.

Te ktronix Part Numbe r 0110059-02 .

100 MH z. Outpu t amplitude: variable from 10 mV to 5 V ρ-p. Output im pedance : 50 Ω. Reference freque ncy : 50 kH z. Am plitude accuracy : co nstant within 3% of reference fre quency as output fre qu ency changes.

Performa nce Chec k Pr oced ure-2235 Service Ta ble 4-1 (cont) Item No. a nd Descri p tio n

M inim um Specificatio n

8. Τ-Connector

Co nnectors : BN C.

9. Adapter

Exam ples of Su itable Test Equipme nt

Purp ose I Sig nal inte rco nn ection .

Tektronix Part Numbe r 1030030-00 .

Connectors : BN C- Male-toMi niature Probe Ti p.

Sig nal inte rconn ection .

Tektronix Part Nu mber 0130084-02.

10 . Digital Voltmeter

R ange : 0 to 140 V . Dc

Power supply chec ks and adjustment . Vertical adjustment .

TEKTRONIX DM Mu ltimeter.a

11 . Test Oscillosco pe with included 10 Χ Probe

Band widt h : do to 10 MHz . M inimum deflection factor : 5 mV/div . Accuracy : ±3%.

H ol doff chec k and general

TEKTRONIX 2213 Oscillosco pe.

12 . DC Voltmeter

R ange : 0 to 2500 V, calibrated to 1 % accuracy at -2000 V .

High -voltage power su pply ch eck .

Triplett M odel 630-NA .

13 . Screwdriver

L engt h: 3-in shaft.

Adjust variable resistors .

Xcelite R -3323.

L engt h: 1-in shaft.

Adjust variable ca pacitors.

J .F .D . Electron ics Corp.

14 .

Low-Capacitance Alignment Tool

a Requi res

Vertical 1. 2. 3. 4. 5. 6. 7. 8.

Chec k Chec k Chec k Chec k Chec k Chec k Chec k Chec k

voltage accuracy : ±0 .15% . 4 1/2-digit display.

B it Size : 3/32 in . B it size : 3/32 in .

trou bleshooting .

Adj sutment Tool Number 5284 .

α TM 500-se ries power-modu le mainframe.

IN DEX TO PERFORM ANCE C HE CK ST EP S Deflection Accuracy and Va ria ble R ange Position R ange . . . . . . . . . . . . . . . . . . . Trigger V iew Gain . . . . . . . . . . . . . . . . . Aberrations . . . . . . . . . . . . . . . . . . . . . . Bandwidth . . . . . . . . . . . . . . . . . . . . . . . Bandwidth Limit Operation . . . . . . . . . . Common-Mode R ejection R atio . . . . . . Channel Isolation . . . . . . . . . . . . . . . . .

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4-4 4-4 4-5 4-5 4-5 4-6 4-6 4-7

H orizontal 1 . Chec k Timi ng Accuracy and Linearity . . . . . . . . . 4-8 2. Chec k Varia ble R ange and Sweep Separation . . 4-9 3. Chec k Delay Time Dial R ange and Accuracy . . . 4-10

4. 5. 6. 7. 8.

C h ec k Delay Jitter . . Chec k Position R ange Chec k Χ Gain . . . . . . Chec k Χ B andwidth . Check Swee p Lengt h

501A Digital

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4-11 4-11 4-11 4-11 4-11

Internal Triggeri ng . . . . . External Triggeri ng . . . . External Trigger R anges Single Sweep Operation

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4-12 4-13 4-13 4-14

Trigge r 1. 2. 3. 4.

Check Check Check Check

External Ζ-Axis and Pr obe Ad ju st 1 . Check Exter nal Ζ-Axis Operatio n . . . . . . . . . . . . 4-15 2. Check Pr obe Adjust Operation . . . . . . . . . . . . . . 4-15

Performance Chec k Procedu re-2235 Service

VERTICAL E qui p me nt Required (see Ta ble 4-1) : Cali bration Generator (Item 1)

50-Ω BN C Termination (Item 5)

Leveled Sine-Wave Generator (Item 2)

Du al-I np ut Coupler (Item 6)

50-Ω BN C Cable (Item 4)

10Χ Attenuator (Item 7)

I N ITIA L CO N TR OL

S E TTI NGS

Vertical (Both Chann els)

ε. Move th e ca b le from t he CH 1 OR Χ input co nn ector to th e C H 2 OR Υ in put connector. Set the VERTICA L MOD E switch to CH 2.

POSITION Midra nge VERTICA L MOD E CH 1 Table 4-2 BW LI M IT On (button in) Deflection Accuracy L imits V OLTS/DIV 2 mV V OLTS/DIV Varia ble CA L detent I NVER TSta Off (button o ut) VOLTS/DIV ndard Vertical Accur acy AC-G ND-DC DC Switch Am plitude ~ Deflection Limits ~ Setting Signal (Divisions) (Divisio ns) H orizontal POSITIO N Midrange HORIZONTA L MOD E Α 4 Α SEC/DI 0 V .2 ms SEC/DI 5 V Variable CA L dete nt Χ10 M agnifier Off (kno b in) Α TRIGGER VAR H OLDO FF

Mode SLOPE LEVEL

Α&Β ΙΝΣ

Α SO UR CE Α ΕΧΤ CO UPLING

NORM Ρ-Ρ AUTO OUT M idra nge VERT M OD E ΙΝΤ AC

α. Connect the stan d ard-amplitude generator output via α 50-Ω ca ble to the CH 1 O R Χ in pu t conn ector.

10 mv

5 mV

20 mV

3.92 to 4.08

10 mV

50 mV

4.90 to 5.10

20 mV

0.1 V

50 mV

0.2 V

0.1 V

0.5 V

d.

5

4 .90 to 5.10

5

4.90 to 5.10

Ι

4

3.92 to 4.08

Ι

5

4.90 to 5 .10

0.2 V

4.90 to 5 .10

V

3.92 to 4.08

1 V

4.90 to 5 .10

0.5

PR OC E DURE ST EPS 1 . Chec k Deflection Accur acy an d Varia ble Range

2 mV

2V

10 V

Ι

5

4.90 to 5.10

5V

20 V

Ι

4

3.92 to 4 .08

R epeat part b u sing the Channel 2 controls.

2. Chec k Positio n Ra nge b. CHECK-Deflection accuracy is within the limits given α, Set : in Table 4-2 for each CH 1 V OLTS/DIV switch setti ng an d 50 mV corres ponding standa rd-am p litude signal . Wh en at t h e 20V OLTS/DIV (both) N D-DC ( both) AC mV VOLTS/DIV AC-G switch setting, rotate the CH 1 VOLTS/DIV Variable control fully cou nterclockwise and C HE CK t hat the dis play decreases to 2 divisions or less . Then ret urn the CH 1 V O LTS/DIV Varia ble control to the CA L detent and co nb. Set th e generator to produce α 0.5-V standa rd-amplitinue with t he 50-m V c hec k. tude signal .

Performance Ch ec k c. Ad j ust t he CH 2 V O LTS/DI V V ariab le control to produ ce α 4.4-divisio n dis p lay. Set t h e C H 2 VO LTS/DI V switc h to 10 mV.

Ι.

R epeat parts

b and c.

m. Discon nect the test equi pment from th e instrume nt.

d . CHE C K-T he bottom and to p of the trace may be positio ned above and below the center h orizontal graticule li ne by rotating th e Ch an n el 2 POSITIO N control fully clockwise and co u ntercloc kwise respectively .

4. Chec k Aberrations α. Set:

BW LI M IT e. Move t he ca ble from the CH 2 OR Υ input connecto r to V OLTS/DIV (both) t he CH 1 OR Χ in p ut co nn ector and set the VERTICA L AC-G N D-DC (both) MOD E switch to CH 1 . 0 Α SE C/DI V f. R epeat parts c and d using the Channel 1 controls. 3. Chec k Trigge r View Gain α. Set: Vertical P OSITION (both) V OLTS/DIV (bot h)

VOLTS/DIV V ar iable (bot h)

Proce dure-2235 Service

Midrange 0.1 V CA L detent

b. Wh ile h ol ding in the TR IG V I EW button, u se the Α TR IGGER LEVEL co ntrol to vertically center th e display . c. CHECK-Dis play amplitude is 4 to 6 divisions while V I EW button .

h ol ding in the TRIG

d. M ove the cable from the CH 1 O R Χ in put connector to the CH 2 OR Υ in pu t connecto r. e. Repeat parts b and c. f. Move the cable from th e CH 2 OR Υ inpu t connector to the ΕΧΤ INPUT connecto r. Set th e Α SO UR CE switch to EXT . g. Repeat p arts b and c.

h . Set the Α ΕΧΤ CO UPLI N G switc h to DC .

Off (button out) 2 mV DC .05 Ει s

b. Con n ect the fast-rise, p ositive-going square-wave output via α 50-Ω ca ble, α 10Χ atte nu ator, and α 50-Ω termination to t h e CH 1 OR Χ input connector . c. Set the ge nerator to display.

p roduce α 1-MHz, 5-division

d . CHE C K-Display aberrations are within 4% (0 .2 division or less). e. R epeat part d for each of the following V OLTS/DIV switch settings : 5 mV through 0.5 V . Adjust the generator output and attach or remove the 10 Χ attenuator as necessary to maintain α 5-division display at each VOLTS/DIV switch setting . f. Disconnect the ca ble from the CH 1 OR Χ input connector . R econnect the 10 Χ attenuator (if previously removed) and reduce the generator amplitude to minimum. g. Connect the ca ble to the CH 2 OR Υ in put co nn ector an d set th e VER TICAL MOD E switch to CH 2.

h. Set th e generato r to p roduce α 5-division display. i. Repeat parts d an d e u si ng the Chan nel 2 co ntrols. j. Disconnect t h e test equ ipment from the instrument.

i . R epeat pa rts b and c.

j . Set the Α ΕΧΤ CO UPLI NG switch to DC _ 10 . k. Set 20 the generator to p roduce α 5-V signal .

5. Check Ban dwidt h α. Set: VO LTS/DIV (bot h)

Α SEC/DI V

2 mV

Ει s

4-5

Performance Chec k Procedure-2235 Service b. Connect the leveled sine-wave ge nerator outpu t via α 50-Ω cable and α 50- Ω termi n atio n to t h e CH 2 OR Υ in p ut connector. c. Set the generator to produce α 50-kH z, 6-division dis play. 10 d . CHECK-Dis play am plitude is 4.2 d ivisions or greater as the generator outpu t freq uency is increased up to the value shown in Table 4-3 for the correspondi ng VOLTS/DIV switch setting . Ta ble 4-3 Setti n gs for Ba n d wi dt h Ch ec k s V OLTS/DIV Switch Setting

Gene r ator Output Frequ ency

2 mV

90 MHz

5m V to5 V

100 MHz

e. R epeat parts c and d for all i ndicated CH 2 VOLTS/DIV switch settings, up to th e output-voltage upper limit of the sine-wave generator b eing used . f. M ove the cable from the CH 2 OR Υ input connector to the CH 1 OR Χ in p ut connector. Set th e VERTICA L MOD E switch to CH 1 . g. Repeat p arts c and d for all indicated CH 1 V OLTS/DIV switch settings, up to the output-voltage upper

e. Disconnect the test equ ipment from the instrument. 7. Chec k Common-Mode R ejection Ratio α. Set : BW LI M IT CH 2 VOLTS/DIV I NVER T

Off (butto n out) mV On (bu tton in)

b. Connect the leveled sine-wave generator outp ut via α 50-Ω ca ble, α 50-Ω termination, and α dual-inpu t coupler to the CH 1 OR Χ and the CH 2 OR Υ in p ut connectors . c. Set the generator to p roduce α 50-MH z, 6-division

d is play.

d. Vertically center the display u sing the Channel 1 POSIΤΙΟΝ control . Then set the VERTICA L MODE switch to CN 2 and vertically center the display using the Channel 2 POSITION control . e. Set the VERTICA L MOD E switches to BOTH and ADD. f. CHECK-Dis play am plitud e is 0.6 division or less . g. If the chec k in p art f meets the requirement, skip to part ρ. If it does not, continue with part h.

h. Set the VERTICA L MOD E switch to CH 1 .

limit of th e sine-wave generator bei ng used .

6. Ch ec k Band wi dth Limit Op eration α. Set: BW L I MIT On (button in) H 1 VOLTS/DIV C10 mV Α20 S EC/DI V μs

b. Set the generator to pr oduce α 50-kH z, 6-division display. c. Increase the generator output freq uency u ntil t h e display amplitude decreases to 4 .2 d ivisio ns. d. CHE CK-Generator output freq uency is b etween 18 and 22 MH z.

i . Set the gene rator to produce α 50-kH z, 6-division display. j . Set the VERTICA L MOD E switch to BOTH . k . A d ju st the CH 1 or CH 2 V O LTS/DIV Variable control for mi nimum d is play am plitud e. Ι . Set the VERTICA L MOD E switch to CH 1 . m. Set the generator to produce α 50-MHz, 6-division display. η . Set the VERTICA L M OD E switch to BOTH .

Perfo rmance Chec k Pr ocedure-2235 Service ο. CHE CK-Display am plitud e is 0.6 d ivisio n or less . ρ. Disconnect the test equi pment from th e instrument .

c. Set the generator to produce α 50-MH z, 5-division display. d . Set the VER TICA L MOD E switch to CH 2. e. CHECK-Dis play amplit ud e is 0.05 division or less . f. Move the cable from the CH 1 OR Χ input co nnector to the CH 2 O R Υ in p ut connector.

8. Chec k C hannel Isolatio n α. Set: VERTICA L MOD E V O LTS/DIV (bot h) VO LTS/DIV Variable (bot h) INVERT Chan n el 2 AC-G N D-DC 0 V Α S EC/DI

CH 1 1 V CA L detent Off (button out) GND .1 us

b. Co nnect the leveled sine-wave generator output via α 50-Ω cable an d α 50-Ω termination to the CH 1 OR Χ in pu t connector.

g . Set: VERTICA L MODE Channel 1 AC-G ND-DC Channel 2 AC-G N D-DC

CH 1 GND DC

h. CHE C K-Display am plitude is 0.05 division or less . i. Disconnect the test equi pment from the instrument .

Performance Check P rocedur e-2235 Service

HO R IZON TA L E q ui p ment Re q uired (see Table 4-1): Cali bration Ge nerator (Item 1)

Leveled Sine-Wave Generator (item 2)

50-Ω BN C Cable (Item 4) 50-Ω BN C Terminatio n (Item 5)

Time-Mar k Generator (Item 3)

I N ITIA L

CO NTRO L SE TTI N GS

PR OCE D URE

1.

Vertical POSITIO N (bot h) M idra n ge VERTICA L MOD E CH 1 BW LI MIT Off (button out) CH 1 V OLTS/DIV 0 .5 V CH 1 V OLTS/DI V Variable CA L detent Channel 1 AC-G ND-DC DC

Horizontal P OSITIO N Midrange HORIZONTA L MOD E Α Α SE C/DI 0 V .05 As SE C/DI V Variable CA L detent Χ10 M ag nifier Off (knob in) Β DELAY TIME POSITIO N Fully countercloc kwise

ST EPS Chec k Timi ng Acc uracy a n d Linea rity

α. Connect th e time-mar k ge nerator output via α 50-Ω cable and α 50-Ω termination to th e CH 1 OR Χ in put connector.

b. Select 50-ns time markers from the time-marke r generator.

c. Adjust the Α TR IGGER LEVEL control for α stable, trigge red d is p lay .

Β T RIGGER SLOPE LEVEL

OU T Fu lly cloc kwise

d. U se the Horizontal POSITIO N control to align the secon d time marker with the second vertical graticule line .

NORM N ORM OUT Midrange VERT M OD E ΙΝΤ DC -- 10

e. CHECK-Timing accuracy is withi n 2% (0 .16 division at the 10th vertical graticule line), and li nearity is within 5% (0 .1 division over any 2 of th e ce n ter 8 divisions) .

Α T RIGGER VAR HO LDO FF

Mode SL OPE LEVEL Α&Β ΙΝΤ Α SO UR CE Α ΕΧΤ CO UPLING

P erformance Check Procedure-2235

i. U se the H orizontal P OSITION control to align t he first time marker that is 25 ns beyond the start of the swee p with t he second vertical graticule line .

Table 4-4 Settings for Timing Accuracy Checks

SEC/DIV Switch Setting 0.05 0.1 0.2 0.5

As As μs As

1 μs 2 μs 5 μs

Service

Time-Mark Generator Setting

Normal

Χ10 M ag nifie d

50 ns 0 .1 AS 0 .2 As 0.5 μs

10 10 20 50

ns ns ns ns

1 μs 2 μs 5 μs

0.1 μs 0.2 μ s 0.5 μs

10 As lops 20 As 20 As 500 As 50 As 0 0.1 ms 0 .1 ms 0 .2 ms 0 .2 ms 0 .5 ms 0.5 ms

1 AS 2 As 5 As 10 As 20 As 50 As

1 ms 2 ms 5 ms

1 ms 2 ms 5 ms

0.1 ms 0.2 ms 0.5 ms

10 ms 20 ms 50 ms

10 ms 20 ms 50 ms

1 ms 2 ms 5 ms

Α Sweep Only 0 0.1 s 0.1 s 0.2s 0.2s 0.5s 0.5s

10 ms 20 ms 50 ms

ΝΟΤΕ For checking the timing accuracy of the Α SECIDI V switch settings from 50 ms to 0.5 s, watch the time marker tips only at the 2nd and 10th vertical graticule lines while adjusting the Horizontal POSITION control. f. R epeat parts ε t hroug h e for t he r emaining Α SEC/DI V and time-mar k generator setting combinations shown in Table 4-4 under the " Normal" column . g. Set: Α SE C/DI 0 V .05 μs Χ10 M agnifier On (kn ob out)

h. Select 10-ns time markers from the time-mark generator.

j . CHECK-Timing accuracy is within 3% (0 .24 division at the 10th vertical gratic ule line), and linearity is wit hin 5% (0 .1 division over any 2 of the center 8 divisions) . E xclude any portion of the sweep p ast the 100t h mag nified division .

k. R epeat parts i and j for the remaining Α SE C/DI V an d time-mar k generator setting combinatio ns shown in Table 4-4 under the " Χ10 M agnified" column. Ι . Set: HOR IZONTA L MOD E Α SE C/DI V Β SE C/DI V Χ10 M agnifier

Β .1 As .05 μs Off (kno b in)

m . R epeat p arts b t hroug h k for the Β Sweep. Kee p t he Α SEC/DI V switch one setting slower than the Β SEC/DI V switch. 2. Chec k Variable R ange and Swee p Se paration α. Set: HORIZONTA L MODE Α and Β SEC/DI V S EC/DI V Varia ble Χ 10 Magnifier Α TR IGG ER Mode

Α .2 ms Fu lly counterclockwise Off (knob in) Ρ-Ρ AUTO

b. Select 0 .5-ms time markers from the time-mark generator. c. CHECK-Time markers are 1 division or less apart.

d. Set: Channel 1 AC-G ND-DC S EC/DI V Varia ble HORIZON TA L MOD E

GN D CA L detent ALT

e. U se the Channel 1 P OSITIO N control to set the Α Swee p at th e center horizontal graticule line . f. CHE CK-T h e Β Sweep can be p ositioned more than 3.5 division s above an d below the Α Swee p when the Α/Β SWP SEP control is r otated fully clockwise an d co un terclockwise respectively .

4-9

Performance Chec k Pr ocedure-2235 Service 3. Check Delay Time Dial Range and Accu racy α. Set the Β DELAY TIME cou nterclockwise .

POSITIO N dial fully

b. Align the start of the Α Swee p with the 1st vertical graticule line using the Horizontal POSITIO N control. c. CHE C K-Intensified p ortion of the trace starts within 0.5 d ivision of the start of the sweep.

η. CHE CK-The Β DELAY TIME POSITIO N dial setting is between 8 .905 and 9.095 . ο. Repeat parts Ι t hroug h η for the remaining Α and Β SEC/DI V and time-mar k generator setting combinatio ns s h own in Table 4-5.

Table 4-5 Settings for Delay Time Accur acy Ch ecks

d. Rotate the Β DEL AY TIME POSITIO N control fully Α SEC/DI V Time-M Β SEC/DI V ark cloc kwise . Switc h Setting ~ Switch Setting Generator Setting e. CHE CK-Intensified portio n of the trace is past th e 11 th vertical graticule line . f. Set: Α and Β0 S EC/DI V .5 As Β DELAY TIME POSITION Fully co u ntercloc kwise g. Align the start of the Α Swee p with t he 1 st vertical graticule line using the Horizontal POSITIO N co ntrol . 0 50 h. CHE C1 K-Intensified p ortion of the trace starts with in 1 .1 divisions of the start of the sweep. i . R epeat p arts d and e.

j . Set : Chan nel 1 AC-G ND-DC DC HOR IZONTA L MOD E Β Α S EC/DI 0 V .5 As Β SEC/DI 0 V .05 As Β DELAY 1 TIME POSITIO N .00

0.5 As

0.05 As

0 .5 As

5 μs

0.5 μs

5 μs

0.5 ms

50 As

0.5 ms

5 ms

0 .5 ms

5 ms

0.5s

50 ms

0.5s

ρ. Set: Α SEC/DI V Β SEC/DI V Β D ELAY TIME POSITIO N

.5 ms μs .00

q. Select 0.5-ms time markers from th e time-mark generator. r. Adju st the Horizontal POSITIO N control so that the rising edge of the d is p layed time marker is aligned with the center vertical gratic ule line .

s. Without changi ng the Horizontal POSITIO N cont r ol setting, turn t he Β DEL AY TIME POSITIO N dial cloc kwise to position the next time marker leading edge to the cente r verticalgraticule line . k. Select 5-μs time markers from the time-mark generator. Ι. Adjustis the Horizontal POSITIO N control so that the to p of the first fully dis played time marker is aligned with t he center vertical gratic u le line . m. Without changi ng the Horizontal P OSITIO N cont rol setting, set the Β D ELAY TIME POSITIO N dial to 9.00. Slig htly readjust the Β DELAY TIME POSITIO N dial to alig n the top of the time marker with t h e ce n ter vertical graticule line .

t. CHE C K-The Β DELAY TIME P OSITIO N dial setting 0.975 to 1 .025 greater than the p revious setting . υ. Set the Β D ELAY TIME POSITIO N dial to t h e exact integer setting. ν. R e peat p arts r throug h υ for each successive time marker up to the marker correspondi ng to the Β DELAY TIME POSITIO N dial setting of 10 .00.

P erfo rma nce Chec k Pr ocedure-2235 Service 4. Chec k Delay J itte r

j. Discon n ect t h e test eq uipment from the instrument .

α. Set : Α S EC/DI 0 V .5 ms 0 V .5 μs Β S EC/DI Β10 DELAY TIME POSITIO N .00 b. Select 10 50-μs time markers from the time-mark generator. c. R otate the Β DEL AY TIME POSITIO N control co untercloc kwise to position α time marker within the graticule area for each major dial division and CHE CK t hat the jitter on the leading edge of the time marker does n ot exceed 0.5 d ivision . Disregard slow drift. 5. Check Position Range α . Set: HORIZONTA L MOD E Α Α10 SEC/DI V AS b. Select 10-Ει s time markers from the time-mar k generator. c. CHECK-Start of the swee p can be positione d to the right of the center vertical graticule li ne by rotating the Horizontal POSITIO N control fully clockwise . d. CHECK-T he 11th time marker ca n be positioned to the left of the center vertical graticule line by rotating the Horizontal POSITIO N control fully counterclockwise . e. Select 50-μs time markers from the time-mark generator. f. Align the 3rd time marker with t he center vertical graticule line using the Horizontal POSITIO N control .

6. Check Χ Gain α . Set: CH 1 V OLTS/DIV Horizontal POSITIO N Α SEC/DI V Χ10 M agnifier

mV Midra nge Χ-Υ Off (knob in)

b. Connect the standard-amplitude generator out put via α 50-Ω cable to the CH 1 O R Χ in p ut connector. ε . Set the generator to p roduce α 50-m V signal . Vertically center the trace using the Channel 1 POSITIO N co ntrol . d. CHE CK-Dis play is 4.85 to 5 .15 h orizontal d ivisio ns. e. Disconnect the test equ ipme nt from the inst rument.

7. Chec k Χ

B and wi d th

α. Connect the leveled sine-wave generato r output via α 50-Ω cable and α 50-Ω termination to the CH 1 OR Χ i nput connector.

b. Set the generator to p roduce α 5-division horizontal display at an output fre q uency of 50 kH z. c. Increase the generator outp ut frequ ency to 3 MH z. d. CHE CK-Display is at least 3.5 h orizontal divisions. e. Discon nect the test eq ui pment from the instrume nt.

g . Set the Χ10 M agnifier k no b to On (knob out) .

h . CHECK-Magnified time marker can be positioned to the left of the center vertical graticule li ne by r otating the

8. Check Swee p Length

Horizontal POSITIO N control fully co untercloc kwise .

α . Set the Α S E C/DI V control to 0.1 ms and position the start of the sweep at th e first ve rtical graticule li ne using the Horizontal P OSITIO N control.

i. CHE C K-Start of the swee p can b e positioned to the right of the center vertical graticule line by rotati ng the Horizontal POSITIO N control fully cloc kwise .

b. C HECK-End of the sweep is to the right of the 11th vertical gratic ule line .

Performa nce Check Proced ur e-2235 Service

TR IGG ER Eq ui pme nt R equired (see Ta ble 4-1) :

L eveled Si ne-Wave Generator (Item 2)

50-Ω BN C Termi natio n (Item 5)

50-Ω BN C Ca ble (Item 4)

S ETTINGS

I N ITIA L CO N TR OL Vertical

M idra nge POSITIO N (both) CH 1 VER TICA L MOD E Off (button out) IMIT BW L mV CH 1 V5 OLTS/DIV mV 50 CH 2 V OLTS/DIV VOLTS/DI V Variable CA L detent (both) Off (button out) I NVER T DC AC-G ND-DC (bot h)

ε. Set t he CH 1 V OLTS/DIV switch to 50 mV .

d. CHECK-Sta ble display can be obtained b y adjusting the Α TR IGGER LEVEL control for each switch combination given in Table 4-6 . Table 4-6 Switch Combinatio ns for Α Tr iggering Chec ks Α TR IGGER Mode

Α TR IGGER SLOPE

NORM

OU T

N ORM

IN

Ρ-Ρ AU TO

IN

H orizo ntal

POSITIO N

M idra nge

SE C/DI V

CA L detent

H ORIZON TA L M OD E Α0 an d Β S EC/DI V Variable Χ10 M agnifier Β DELAY TIME POSITIO N

Α

.2 μs

Off (k no b in) Fully co unterclockwise

Β T RIGG ER OU T Midrange

SLO PE LEVEL

O UT

Ρ-Ρ AU TO

e. Set the HORIZO NTA L MOD E switch to Β. f. C HECK-Stable display can be obtained by adjusting the Β TR IGGER LEVEL control in α position ot her tha n t he Β RUNS AFTER DLY position for both t he OUT an d IN positions of the Β TR IGGER SL OPE switch.

Α T RIGGER VAR HOLDO FF

Mode SLO PE LEVEL Α& Β ΙΝΤ Α SO UR C E Α ΕΧΤ CO UPLING

NORM Ρ-Ρ AUTO OU T Midrange CH 1 ΙΝΤ DC

PR OC EDURE ST EP S 1 . Chec k Internal Trigge ring

α. Connect the leveled sine-wave generator output via α 50-S2 cable and α 50-Ω termination to the CH 1 OR Χ in put co nnector . 0 b . Set the generator to produce α 10- MH z, 3-division display .

g. Set: VER TICA L MOD E H ORIZONTA L M OD E Α&Β ΙΝΤ

CH 2 Α CH 2

h. M ove the cable from the CH 1 OR Χ in put conn ector to

the CH 2 OR Υ input co nnector . i . R epeat parts d throug h f. j . Set:

HORIZONTA L MOD E Α SEC/DI V Χ 10 M ag nifier

Α .1 AS On (k no b out)

P e rfo r mance Chec k Procedur e-2235 Service k. Set c the generator to produce α 60-MH z, 1 .0-divisio n display.

d. CHECK-Stable display can be obtained by adjusting the Α TR IGGER LEVEL control for each switch combination give n n Table 4-6 . Th en release t he TR IG V I EW button.

Ι. R epeat parts d t hrough f.

i

m . Set: VERTICA L MOD E HORIZONTA L MOD E Α&Β ΙΝΤ

CH 1 Α VERT MOD E

η. M ove the ca ble from the CH 2 OR Υ i nput conn ector to the CH 1 OR Χ input connector.

Α .05 As

q. Set the generato r to produce α 100- ΜΗτ, 1 .5-division display. r. R epeat parts d throug h f. 0 20 s. Set :

VERTICA L M OD E H ORIZONTA L MOD E

CH 2 Α

t. M ove the ca ble from the CH 1 OR Χ input connector to the CH 2 OR Υ input connector.

Repeat

p arts ε and d .

i. Disco nnect t he test equipment from th e instrument .

3. Chec k Extern al Trigger R anges α. Set: CH 1 V OLTS/DIV Α SEC/DI V Χ10 M ag nifier Α TR IGG ER Mode

.5 V μS Off (knob in) NORM

b. Connect the leveled sine-wave ge nerator output via α 50-Ω cable, α 50-Ω termination, and α dual-input coupler to b ot h t he CH 1 OR Χ and ΕΧΤ INPUT connectors . c. Set the ge nerator to produce α 50-kH z, 6 .4-division display.

υ. R epeat p arts d throug h f. ν. Disconnect the test equi pme nt from the instrument . 2. Chec k External Trigge ring α. Set: VERTICA L MOD E H ORIZONTA L MOD E Χ 10 M agnifier Α SO UR C E

f . R epeat p arts c and d.

h.

ρ. Set: Α SE C/DI 0 V

e. Set the generator output voltage to 120 mV and the frequency to 60 MHz. Set the Χ10 M agnifier to On (knob out) .

g. Set the generator output voltage to 200 mV and t he freq uency to 100 MH z .

ο. R epeat parts d through f.

H ORIZONTA L MOD E

. Pus h in and hold the TRIG V I EW bu tton .

CH 1 Α Off (knob in) ΕΧΤ

b. Connect α 35-mV, 10-MH z leveled sine-wave signal via α 50-Ω cable and α 50-Ω termination to the ΕΧΤ INPUT connector.

d. CHE CK-Dis play is triggered along the enti re positive slope of the waveform as the Α TR IGGER LEVEL control is rotated. e. CHECK-Display is not triggered (no trace) at either extreme of rotation . f. Set the Α TR IGG ER SLOPE button to IN . g . CHE CK-Display is triggere d along the entire negative slope of the waveform as the Α TR IGGER LEVEL control is rotated . 4-13

Performance Check Procedure-2235 Service

h. CHECK-Display is n ot triggered (no trace) at either extreme of rotation .

e. CHECK-READY LED goes out and α single swee p occurs .

4. Check Single Sweep O peration α. Adjust the Α TRIGGER LEVEL control to obtain α sta-

b le display.

NOTE The Α INTENSITY control may require adjustment to observe the single-sweep trace.

b . Set : Channel 1 AC-GND-DC Α SOURCE

GND ΙΝΤ

c. Press in t he SGL SWP button . The READY LED should illuminate and remain on . d. Set the Channel 1 AC-GND-DC switch to DC .

f. Press in the SGL SWP button several times. g. CHECK-Single-sweep trace occurs, and the READY LED illuminates b riefly every time the SGL SWP button is p ressed in and released . h. Disconnect the test equi pment from the instrument .

Perfo rmance Chec k Pr ocedure-2235 Service

EXTERNA L Z-AXIS AN D PROBE ADJUST E quipme nt Req uired (see Ta ble 4-1) :

Leveled Si ne- Wave Generator (Item 2)

BN C Τ-Connector (Item 8)

Two 50-Ω BN C Cables (Item 4)

10 Χ Probe (provided with instrumen t)

50-Ω BN C Termination (Item 5)

IN ITIA L CO NTROL

S ETTINGS

Vertical Channel 1 P OSITIO N VERTICA L M OD E BW LIMIT 1 CH 1 V OLTS/DIV CH 1 V OLTS/DIV Varia ble Channel 1 AC-G ND-DC

Midrange

CH 1

Off (button out) V CA L detent DC

H orizontal Midra n ge POSITIO N Α HOR IZON TA L MOD E Α 20 μs S E C/DI V SEC/DI V V ariable CA L detent Off (knob in) Χ10 M agnifier

10 Α T RIGG ER 0 NORM VAR HOLDO FF Ρ-Ρ AUTO Mode SLOPE OU T LEVEL Midrange Α& Β ΙΝΤ VERT M OD E Α SO UR CE ΙΝΤ

PROCEDURE STEPS 1 . Ch ec k External Ζ -Axis Op eratio n α. Connect the leveled sine-wave generator output via α 50-Ω cable and α Τ-connecto r to the CH 1 OR Χ i nput con-

co nnector . Then connect α 50-Ω cable and α 50-Ω termi nation from the Τ-connector to the ΕΧΤ Ζ AXIS INPUT connector on the rear panel .

b. Set the ge nerator to produce α 5- V , 50-kH z signal . c. CHE C K-For noticeable intensity modulation . The positive p art of the si ne wave should b e of lower inte nsity than the negative p art. d . Disconnect the test equi pment from the instrument . 2. Check Probe Adjust Operation α . Set: CH 1 V OLTS/DIV Α SEC/DIV

mV .5 ms

b. Connect the 10 Χ Pro be to the CH 1 O R Χ i np ut connector and inse rt the probe tip into the PR OBE AD JU ST j ac k on the instrument front panel . If necessary, adju st the probe compensation for α flat-topp ed squ are-wave d isplay. c. CHE CK-Dis p lay am p litude is 4.75 to 5.25 divisions. d. Disconnect the p robe from the instrument .

Section 5-2235 Service

ADJUST MEN T PROC EDURE

I N T R OD U CTIO N

PURPOSE The "Adjustment Procedure" is α set of logically seq uenced instructions inten ded to return t h e instrume nt to conformance with t he Performance Requirement statements listed in Table 1-1 . Adjustments contained in this p rocedure should only be performed after checks from t he "Performance Check Procedure" (Section 4) h ave indicated α n eed for read j ustment or after repairs h ave b ee n made to the instrument .

Table 4-1 . Wh en considering use of equipment ot her than that recommended, utilize the " Minimum Specification" column to d etermine whet h er availa ble test equi pment will suffice. Detailed operati ng instructions for test eq uipment are not given in this procedure. If more operating informatio n is required, refer to the ap propriate test-e qui pment instructio n manual .

STRUCTURE

LIM ITS AN D TOLER ANC ES

This proce dure is structured into four maj or su bsections, eac h of whic h can b e performed independently to permit adj ustment of individual sections of the instrument . F or example, if only the Vertical section fails to meet the Performance Requirements or h as had repairs made, it can be readj usted with little or no effect on ot h er sectio ns of the i nstrument .

The limits and tolerances stated in th is p rocedure are instrument specifications only if they are listed in the "Performance R equirements" column of Table 1-1 . Tolera nces given are applicable only to the instrume nt undergoing adju stment and do not include test equipment error. Adjustment of the instrument must be accomplis h ed at an am bient temp erature between +20°C and +30°C, and the instrument must h ave h ad α warm-up period of at least 20 minutes .

T he Power Su pply section, h oweve r, affects all other sections of the instrume nt. Therefore, if repairs or readjustments h ave b een made that change the absolute value of any of the su pp ly voltages, the entire Adj ustment Procedure should be performed . At the beginning of each subsection is α list of all the front-panel control settings required to prepare the instrument for performing Step 1 in that su b section. E ac h succeeding step with in α su bsection sh ould be performed in se que nce and in its entirety to ensure that control setti n gs will be correct for ensuing steps. All step s within α sub section should be completed .

ADJUST MEN T INTER ACTION Some adju stments i nteract with and affect ot her adj ustment settings . Ta ble 5-1 identifies these i nteraction areas. Refer to this table if α p artial proced ure is performed or if α circuit requires readj ustment due to α component replaceme nt. To use Ta ble 5-1, first find the adj ustment that was made (extreme left column). Then move to the right, across the row, until you come to α darkened squ are. From the darkened square, move up the column to find t h e interactive adj ustment. Chec k t he accuracy and, if necessary, read just the adju stment .

TEST EQU IPMENT The test eq uipment listed in Ta ble 4-1 is α complete list of t he equip ment re quired to accom plish bot h t he "Pe rformance Check Procedure" in section 4 an d the "Adju stment Procedure" in this section. To assure accurate measurements, it is important that test eq ui pment used for making these chec ks meet or exceed the sp ecifications describe d in

PREPARATION FOR AD JU STMENT The instrument cabinet must be removed to perform the Adjustment Procedure . See the "Cabinet" remove and ceplace instructions located in the " M aintenance" section of the manual .

A djustment Procedure-2235 Service

i

All test equi pment items listed in Table 4-1 are required to accomplish α complete Adjustment P rocedure. At the beginning of each s ubsection there is an equipment-re quire d to list showing only the test eq ui p ment necessary for performing the steps in t hat subsection . In this list, the item number following each p iece of equipment corresponds to the item number listed i n Table 4-1 .

an internal adjustment setting f α Performance Characteristic cannot be met with t he original setting. If it is necessary change the setting of an internal adjust m ent, check Table 5-1 for possible adjustment interactions .

B efore performing any p roce d ure in POWER switch to ON an d allow α period .

B efore performing this procedure, d o n ot preset any internal adjust ments and do not change the -8 .6-V powersupply adjustment . Altering this adjustment may necessitate α complete readjustment of the i nstrument, whereas only α partial adjustment might otherwise be required . Only change

this section, set the 20-minute warm-up

The most accurate d isplay adjustments are made with α stable, well-focused, low-intensity display. Unless otherwise note d, adjust the INTENSITY, FOCUS, and TRIGGER LEVEL controls as needed to view the d isplay .

Tab l e 5-1

A dj ustme n t Interactions Adjustments or Replacements M ade

Adj ustme n τ s Affected

α ε Ο υ

υ z

>

z ω ο rc Η τ δ z υ ω ω lL Η α z Η υ α υ υω ω .ο ε ~zzJ α μ (ι cη -- -ω z υυ z J ΣεΟ z-~~ υ ω ααα z οσω -- υ εεσ -- z ιυ --W u Σ J J Φ -- U U α of ω -Η Η ¢ (Π (ρ ςJ z ¢α ¢ υ ω zzα υ ΜΜ z υ Of ω LL z _ J ΟΖτ -- Μα ¢ ηυωωαΗ ω z0LOJ .-} υ rc¢JN -- υα ~ ω -- ω -αΟ ααηαυδα J -- υχ -- οωεα ce m 1 τ ω (η -ω ω α ωω > rυ (+.ι --~ ι ω 2z r υυωα υε 1Ε -J ΗωαΝ --z ατ υυ 0α Ο n \ W Η J W_ W J σ ω [~

z

L υ υ 0 ^ -- (D W \ τ W W F-- W Τ Ο Ο α W Γ-, C J Ι Η L7 Ν U Σ ~> ¢ σ U 2 Τ Σ Ο Τ ίΓ] Η Η (η d

LC

-8 .6 V POWER SUPPL Y TRAC E ALIGNMEN T GEOME TRY 2/5mV DC BA L ANC E C H 1 VA R BALANC E MF /L F GAI N BA L δ FREQ CO MP VERT I CA L GAI N ATTEN UATOR CO MP DE L AY L I NE COMP H OR[ Ι? GA I N H ORIZ Χ1 θ GA I N H I GH -SPE ED TI M I N G TR I GG ER O FF S E T TR IGG ER S EN SITI V ITY SLOP E BALANCE CRT REPL AC EMEN T

MMEEMMMMMMMNM M

EMMEMME

ME ME

NESS

MEN moon

MEMMEMEMEMEMEME MEMENNEEMEMMEME

NEON

0

MOMEMEMM M

MOMEMEMMOMMEM -Now ΜΜΟΟΜΜΕ: : ΜΕ "Μ" 42α6-2θ

Adju st ment Pr ocedure-2235 Service

I NDEX TO ADJUSTMENT PROCE DURE STEPS

P age

P ower Su pp ly an d C RT Dis p lay 1. 2. 3. 4. 5. 6.

Chec k/Adjust Power Su pp ly Chec k Hig h-Voltage Su pp ly Adj ust CRT Gri d B ias . . . . Adj ust Astigmatism . . . . . . Adjust Trace Alig nme nt . . . Adjust Geometry . . . . . . . .

DC . . . . . . . . . . . . . ..

Levels . . . . . . . 5-4

. . . . .

. . . . .

. . . . .

. . . . .

. . . . .

. . . . .

. . . . .

. . . . .

. . . . .

. . . . .

. . . . .

. . . . .

. . . . .

. . . . .

5-5 5-5 5-5 5-5 5-5

Vertical 1 . Ad just Attenuator Ste p B alance . . . . . . . . . . . . . 5-6 2 . Ad just 2/5 mV DC Balance . . . . . . . . . . . . . . . . . 5-7 3 . Ad ju st Channel 1 Variable B alance . . . . . . . . . . . 5-7 4 . Ad just Channel 2 Invert B alance . . . . . . . . . . . . . 5-7 5. Ad just MF /LF Compensation and Gain Balance .5-7 6. A djust Vertical Gain . . . . . . . . . . . . . . . . . . . . . . . 5-8 7. Chec k Deflection Accuracy an d Variable Range .5-8 8. Chec k In put Cou p ling . . . . . . . . . . . . . . . . . . . . . 5-8 9. Adjust Attenuator Compensatio n . . . . . . . . . . . . 5-9 10 . Chec k Alternation Operation . . . . . . . . . . . . . . . . 5-10 11 . Chec k Ch op Operation . . . . . . . . . . . . . . . . . . . . 5-10 12 . Adjust Hig h-Frequency Pea king Compensation , Delay Line Compensation , and Channel 2 H ig hFrequency Compensation . . . . . . . . . . . . . . . . . . 5-10 13 . Adjust 2-mV Pea king Compensation . . . . . . . . . 5-11 14 . Chec k Trigger View Gai n . . . . . . . . . . . . . . . . . . 5-11 15 . Chec k Position R ange . . . . . . . . . . . . . . . . . . . . . 5-11 16 . Chec k Bandwidth Limit Operation . . . . . . . . . . . 5-12 17 . Chec k Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . 5-12 18 . Chec k Ch an nel Isolation . . . . . . . . . . . . . . . . . . . 5-12 19 . Check Common-Mode R ejection R atio . . . . . . . . 5-13 20 . Check I np ut Gate Curren t . . . . . . . . . . . . . . . . . . 5-13

H orizontal 1. 2. 3. 4. 5. 6. 7. 8. 9. 10 . 11 . 12 . 13 . 14 . 15 . 16 .

P age

Adjust Horizontal Am plifier Gain . . . . . . . . . . Adjust Χ10 Horizontal Am plifier Gain . . . . . . A d ju st Magnifier R egistration . . . . . . . . . . . . Chec k Swee p Lengt h . . . . . . . . . . . . . . . . . . Chec k Position R ange . . . . . . . . . . . . . . . . . . Chec k Varia ble R ange . . . . . . . . . . . . . . . . . . Adjust Delay Dial Timi ng . . . . . . . . . . . . . . . . Adjust Hig h-Speed Timing . . . . . . . . . . . . . . . Adjust 5-ns Timing and Linearity . . . . . . . . . . Check Timing Accuracy and Linearity . . . . . . Check Delay Time Dial R ange and Accuracy Check Delay J itter . . . . . . . . . . . . . . . . . . . . . Check Swee p Sepa ration . . . . . . . . . . . . . . . Ad just Χ Gain . . . . . . . . . . . . . . . . . . . . . . . . Chec k Χ B andwidt h . . . . . . . . . . . . . . . . . . . . Chec k Α-Swee p Holdoff . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . .

5-14 5-15 5-15 5-15 5-15 5-15 5-16 5-16 5-16 5-16 5-17 5-18 5-19 5-19 5-19 5-19

. . . . . . . .

. . . . . . . .

. . . . . . . .

5-20 5-20 5-21 5-21 5-21 5-22 5-22 5-23

Trigge r 1. 2. 3. 4. 5. 6. 7. 8.

Adjust Adju st Adju st Adjust Chec k Check Check Check

Trigger Offset . . . . . . . . . . Trigger Sensitivity . . . . . . . Slope Balance . . . . . . . . . Ρ-Ρ Auto Trigger Centering nternal Trigge ring . . . . . . Exter nal Triggering . . . . . . Exter nal Trigge r Ranges . Si ngle Sweep Operation .

I

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . .

. . . . . . . .

. . . . . . . .

. . . . . . . .

. . . . . . . .

E xternal Ζ-Axis an d P ro be Adjust 1 . Chec k External Ζ -Axis Operation . . . . . . . . . . . . 5-24 2. Chec k Pro be Adjust Operation . . . . . . . . . . . . . . 5-24

Ad justment P roce dure-2235 Service

POWER E quipment Required

S UPPLY A N D CR T

DIS PL AY

(See Ta ble 4-1):

L eveled Sine-Wave Generator (Item 2)

Digital Voltmeter (Item 10)

Time-M ar k Generator (Item 3)

DC Voltmeter (item 12)

50-Ω BN C Cable (Item 4)

Screwdriver (Item 13)

50-Ω BN C Termination (Item 5)

See

AD JU ST MENT LOCATIO NS 1

at the back of this manual for location of test points and adjustments .

I N ITIA L

CO NTROL

S ETTINGS

Vertical

α . Connect the digital voltmeter low lead to chassis ground and connect the volts lead to the -8 .6-V s upply (ΤΡ961) .

P OSITIO N (bot h)

M idrange VERTICA L MOD E CH 1 CH 1 VO 5 LTS/DIV mV b CA L dete nt CH 1 VO LTS/DIV Variable G ND Channel 1 AC-G ND-DC

H orizontal POSITIO N

H OR IZONTA L MOD E Α S EC/DI V S EC/DI V Varia ble Χ10 M agnifier

Midrange Α Χ-Υ CA L detent Off (knob in)

Α T RIGGER VAR HOLDO FF Mode S LO PE LEVEL Α&Β ΙΝΤ Α SO UR CE

NORM Ρ-Ρ AUTO O UT Midrange VERT M OD E ΙΝΤ

PROCEDURE STEPS 1 . Chec k/A dju st

Power S upply

DC

L evels (R938)

ΝΟΤΕ Review the information at the beginning of the Adjustment Procedure before starting this step.

. CHE C K-Voltmeter reading is -8 .56 to -8 .64 V. If t h e reading is within these limits, skip to p art d.

c. ADJU ST-T he -8 .6 V Adj poten tiometer (R 938) fo r α voltmeter reading of -8 .6 V.

d. CHECK-Voltage levels of the remaining power su p plies listed in Ta ble 5-2 are within the specified limits .

Ta ble 5-2

P ower Sup p ly L imits P owe r Supply

P oi nt

Test

Rea ding (Volts)

-8 .6 V +5 .2 V +8 .6 V +30 V +100 V

ΤΡ 961 W968 W960 W956 W954

-8 .56 to -8 .64 +5 .04 to +5 .36 +8 .43 to +8 .77 +29 .1 to +30.9 +97 .0 to +103 .0

e. Disconnect the test equipment from the instrument .

Adjustme nt Pr oced ure-2235 Service 2. Chec k Hig h-Voltage Sup p ly

c. Set the generator to pro d uce α 50-kH z, 4-division display.

WA RN I N G

d . ADJU ST-Astig (R874) and the front-panel F OC US control for the best defi ned waveform.

Instrument must be turned off when removing or replacing the crt cover and cap.

e. Disconnect the test equi pment from t he instrument.

α. R emove the crt cover and cap and conn ect α do voltmeter ca pable of measuring at least -2500 V between pi n 2 of the crt socket an d chassis ground . Pin 2 of the crt is negative with respect to the chassis. b. CHE CK-Voltmeter reading is between -1900 V and -2100 V . c. Disconnect the voltmeter leads and rep lace th e crt cap and cover. 50 3. Ad just0 CRT Grid B ias (R851)

b. Adjust the front-panel FOC U S control to produce α well-defined dot. Α

I NTEN SITY

co ntrol

fully

B ias (R851) for α visible dot. Then B ias p otentiometer until the dot just

d . ADJUST-Grid

b ack off the Grid disappears .

e. Disconnect the 50-Ω termination from the ΕΧΤ Ζ AXIS INPUT connector. 4. Adjust Astigmatism (R874) α. Set:

Α INTENSITY V isible display CH 1 V OLTS/DIV 5 mV C hannel 1 AC-GND-DC DC Α S EC/DI 5 V μs b. Co nnect 50-As time markers from the time-mar k generator via α 50-Ω cable an d α 50-Ω termination to the CH 1 OR Χ nput connector.

i

α. Position the trace to th e ce nter h orizontal graticule line . b. AD JU ST-T he front- p anel TRAC E ROTATIO N control for optimum alignment of the trace with t he center horizo ntal graticule li ne. 6. Adju st Geometry (R870) α . Set: CH 1 V OLTS/DIV Α SEC/DI V

α. Connect α 50-Ω termination to the ΕΧΤ Ζ AXIS I NPUT connector locate d on the rear panel .

c. R otate the counter cloc kwise .

5. Adjust Trace Alig nment

mV .1 ms

b. Connect 50-Ει s time markers from the time-mark generator via α 50-Ω cable an d α 50-Ω termination to the CH 1 OR Χ in put connector . c. Adjust the Channel 1 POSITIO N cont rol to position the baseline p art of the display below th e bottom h orizontal graticule line .

d. Adjust th e SEC/DI V V aria ble control for 5 markers pe r

di vision .

e. ADJUST-Geom (R870) for minimum curvature of the time markers at the left and right edges of the graticule. f. Set the Channel 1 AC-GND-DC switch to GND. g. ADJUST-Geom (R870) for minimum curvature of the

baseline trace when positioned at the top and bottom hori-

zontal graticule lines using the Channel 1 control.

P OSITION

h . Set the Channel 1 AC-GND-DC switch to DC . i. R epeat parts e t h roug h h fo r o ptimum comp romise between the vertical and horizontal displays .

j. Disconnect the test equipment from the instrument .

Adju stment Pr ocedure-2235 Service

VERTICA L E quipment R eq uired (See Ta ble 4-1) : Calibration Generator (Item 1)

10 Χ Attenuator (Item 7)

Leveled Sine-Wave Generator (Item 2)

Adapter (Item 9)

50-Ω BN C Cable (Item 4)

Screwdriver (Item 13)

50-Ω BN C Termination (Item 5)

Low-Capacitance Alignment Tool (Item 14)

Dual-Input Coupler (Item 6)

10 Χ Pro be (includ ed with instrument)

See

AD JU ST MEN T L OCATIO N S 1

and

AD JU ST MEN T L OCATIO NS 2

at the back of this manual for locations of test points and adjustments.

I N ITIA L CO N T R O L

SE TTI N GS

PR OC E D URE

ST EP S

Vertical (Bot h C hannels) POSITIO N Mid range 1 . Ad just Atte nuator Step Balance (R 10 and R 60) VERTICA L M OD E CH 1 BW LIMIT On (button in) α. Position the trace on the center horizontal graticule Vline 50 OLTS/DIV mV using the Channel 1 POSITIO N control. V OLTS/DIV Varia ble CA L detent I NVER T Off (bu tton o ut) AC-G ND-DC GN D b. Set the CH 1 VOLTS/DIV switch to 5 mV .

H o r izon tal Midran ge POSITIO N H ORIZONTA L MOD E Α V Α SEC/DI 0 .5 ms S EC/DI V Variable CA L detent Χ 10 M agnifier Off (k nob in) Α T RIGGER VAR HOLDO FF

Mode S LOPE LEVEL Α&Β ΙΝΤ Α SO UR C E Α ΕΧΣ CO UPLI NG

NORM Ρ-Ρ AUTO O UT Midrange VERT M OD E ΙΝΤ AC

c. ADJU ST-C h 1 Step ΒαΙ (R10) to set the trace on the center h orizontal graticule li ne. d . Set the CH 1 VOLTS/DIV switch to 50 mV. e. Repeat p arts α throug h d until there is no trace shift when changing the CH 1 V OLTS/DIV switch from 50 mV to 5 mV. f. Set the VERTICA L M OD E switch to CH 2. g. R epeats parts α thro ugh e for Chann el 2, adjusting Ch 2 Step ΒαΙ (R60) in part c.

Adjustme nt 2 . Adj ust 2/5 mV DC

B ala nce (R33 and R 83)

α. Set the CH 2 V OLTS/DI V switch to 5 mV .

b . Position the trace on t h e center h orizontal graticule

line using the Chan nel 2 POSITIO N control.

c. Set the CH 2 V OLTS/DIV switch to 2 mV.

d. AD JU ST-Ch 2 2/5 mV Dc ΒαΙ (R83) to set the trace on the center horizontal graticule line . e. Repeat p arts α throug h d u ntil there is no trace shift when changing the CH 2 V OLTS/DIV switch from 5 mV to 2 mV. f. Set the VERTICA L MOD E switc h to CH 1 . g. R epeat parts α t hroug h e for Channel 1, adj usting Ch 1 2/5 mV Dc ΒαΙ (R33) in p art d . 3. Ad ju st Chann el 1 Variable

B ala nce (1125)

α. Set b ot h VOLTS/DIV switc hes to 10 mV.

b. R otate the CH 1 V OLTS/DIV Varia ble control fully kwise . countercloc 20 c. Position the trace on the center horizontal graticule line using the Channel 1 POSITIO N control. d. Rotate the CH 1 V OLTS/DI V Variable cont rol cloc kwise to the CA L detent .

Procedure-2235 Service

b. Position the trace on th e ce nte r horizontal graticule line using the Channel 2 POSITIO N control. c. Set the INVER T b utton to On (button in). d . AD JU ST-Ch 2 Invert ΒαΙ (R75) to set the trace to the center h orizontal graticule line . e. Set the INVER T b utton to Off (button out) . f. Repeat parts b throug h e until there is no trace shift when switching the I NVERT b utton between the On and Off positions. g. Repeat Steps 2 and 3 for Ch an nel 1 until no furt her im proveme nt is noted .

h.

R epeat Steps 2 an d 4 for Cha nnel 2 until no further

im proveme nt is noted.

5. Adju st MF/LF Compensation (C53, R97, C3, a nd R 47).

a nd Gain Balance

α. Set : VERTICA L MOD E V OLTS/DIV (bot h) AC-G ND-DC (bot h) Α SEC/DI V

CH 2 10 mV DC ps

b. Connect the h ig h-amplitude square wave output via α 50- Ω ca ble, α 10Χ attenuator, and α 50-Ω termination to the CH 2 OR Υ in put connector. c. Set the generator to produce α 10-kH z, 5-division dis play.

e. AD JU ST-Ch 1 V ar ΒαΙ (R25) to set the trace to the center h orizontal graticule line.

d. Set t h e top of the d is play on the center horizontal graticule line using the Channel 2 POSITIO N control .

f. R epeat p arts b t hroug h e until there is no trace shift between the fully cloc kwise and t he fully counterclockwise positio n s of the CH 1 V OLTS/DIV Variable co ntrol .

e. AD JU ST-C h 2 MF/LF Comp (C53) and Ch 2 MF/LF Gain ΒαΙ (R97) for the b est front corner and flat top.

g. Return the CH 1 V OLTS/DI V Varia ble control to the CA L dete nt .

f. M ove the ca ble from the CH 2 OR Υ in put connector to the CH 1 OR Χ in put connector . Set the VERTICA L M OD E switch to CH 1 .

4 . Ad ju st Chan nel 2 I nvert

Balance (R75)

α . Set the VERTICA L M OD E switch to CH 2.

g. Set the top of the display on the center horizontal graticule line using the Channel 1 POSITIO N control .

5-7

Adjustme nt Proce du re-2235 Service

h. ADJU ST-C h 1 MF/LF Comp (C3) and Ch 1 MF /LF Gain ΒαΙ (R47) for the best front corner a nd flat top .

VOLTS/DI V switch. If trace s hift is observed, repeat Step 2 of this p rocedu re.

i. Disconnect the test equipment from the instrume nt.

7. C hec k Deflection Accuracy and Variable Range α. Set :

6. Adj ust Vertical Gain (R145, R 195, R76, and R26) α. Connect α 50-mV standard-amplitud e signal via α 50-Ω cable to the CH 1 OR Χ in put connecto r. b. Set t he Α SEC/DI V switch to 0.2 ms . c. ADJU ST-C h 1 Gain (R 145) for an exact 5-division display. d. M ove th e ca ble from the CH 1 OR Χ input connector to the CH 2 OR Υ i n put connector. Set the VERTICA L MOD E switc h to CH 2. e. AD JU ST-C h 2 Gain (11195) for an exact 5- division display. f. Change the ge nerator output to 10 mV and set b ot h V OLTS/DIV5 switches to 2 mV.

VERTICA L MOD E AC-G N D-DC (bot h)

CH 1 DC

b. CHECK -Deflection accuracy is withi n t he limits given in Table 5-3 for eac h CH 1 V OLTS/DIV switch setting and corresponding stan dard-amplitude signal . When at the 20mV VOLTS/DIV switch setting, rotate the CH 1 V O LTS/DIV Varia ble control fully counterclockwise and CHECK t hat the display decreases to 2 divisions or less . Then return t he CH 1 V OLTS/DIV Varia ble control to t h e CA L detent and continue with t he 50-m V chec k. Ta ble 5-3 Deflectio n Accu racy L imits V OLTS/DIV

Switch Setting

Standard Am plitude Signal

Vertical Deflection (Divisions)

Accur acy Limits (Divisio n s)

2 mV

10 mV

4.90 to 5.10

5 mV

20 mV

3.92 to 4.08

g. AD JU5 ST-C h 2 2-mV Gain ( R76) for an exact 5-division display.

10 mV

50 mV

4.90 to 5.10

20 mV

0.1 V

h. M ove the ca ble from the CH 2 OR Υ i n p ut co nn ector to t he CH 1 OR Χ in put co nnector. Set the VERTICA L MOD E

50 mV

0.2 V

0.1 V 0.2 V

1

4

switch to CH 1 .

i . AD JU ST-C h 1 2-mV Gain (R26) for an exact 5-division dis p lay.

j. Set both AC-G ND-DC switches to G ND . k. CHE C K-T hat no trace shift occu rs when switching

b etween t he 5 mV and 2 mV positions of the CH 1

V OLTS/DIV switch. If trace s hift is observed, repeat Step 2

of th is p rocedu re.

Ι. Set the VERTICA L M OD E switch to CH 2. m. CHECK-T hat no trace shift occu rs when switching betwee n t h e 5 mV and 2 mV positions of the CH 2

5

4.90 to 5.10

Ι

4

3.92 to 4.08

0.5 V

Ι

5

4.90 to 5.10

V

Ι

5

4.90 to 5.10

0.5 V

2V

Ι

4

3.92 to 4.08

1 V

5V

Ι

5

4 .90 to 5.10

2V

10 V

Ι

5

4 .90 to 5.10

5V

20 V

Ι

4

3 .92 to 4.08

c. Move the ca ble from the CH 1 OR Χ i nput connector to th e CH 2 OR Υ i np ut connecto r. Set the VERTICA L MOD E switch to CH 2. d . R epeat part b usi ng t he Chan nel 2 cont rols. 8. Chec k In p ut Co upli ng

α. Set bot h V OLTS/DIV switches to 10 mV.

Adjustment Procedure-2235 Service

b. Set the cali bration generator to produce α 20-mV signal . c. Set the b ottom of the signal on the center horizontal gratic ule line u sing the Channel 2 POSITIO N control . d. SetC5 the Channel 2 AC-G ND-DC switch to AC . e. CHE CK-Display is cen tered about the center horizontal graticule li ne. f. Move the cable from t he CH 2 OR Υ i nput connector to the CH 1 OR Χ in p ut connector. Set the VERTICA L MOD E switch to CH 1 . g . R epeat p arts c thro ug h e using the Channel 1 controls .

h. Disconnect the test equi pment from th e instrume nt. 9. Adju st Attenuator Compensation (C12, C11, C5, C4, C62, C61, C55, an d C54) α. Set both AC-G ND-DC switches to DC . b. Connect the h ig h-amplitude square wave outp ut via α 50-Ω termination, α p robe-ti p-to- BN C adapter, an d the 10Χ probe to the CH 1 OR Χ in put co n nector . c. Set the generator to produce α 1- kH z, 5-division display and compensate the probe using t he pro be compensation adjustment (see the p robe instruction manual).

d. Set the CH 1

V OLTS/DIV switch to 0.1 V.

e. Replace the probe and probe-ti p-to- BN C adapter with α 50-Ω ca ble . f. Set the ge nerator to p roduce α 5-division display. ΝΟΤΕ

Use Table 5-4 to identify the correct capacitor for each channel adjustmen t. g. AD JU ST-The 10 Χ LF Com p capacitor for best front corner .

Ta ble 5-4 Attenuator Compensatio n Adjustme nts Adj ustment

Ι

Chann el 1

1

Chann el 2

10Χ LF Comp

C12

C62

10Χ In put C

C11

C61

100Χ LF Comp

I

100Χ nput C

C55 C4

C54

h. R eplace the 50-Ω ca ble and 50-Ω termi n ation with the pro be and p ro be-tip-to-BN C adapter. i . Set the generator to produce α 5-d ivision display.

j. ADJU ST-The 10 Χ In put C ca pacitor for best flat top. k. R epeat parts e throug h j un til no further improvement is n oted . Ι. Set the CH 1 VOLTS/DIV switch to 1 V . m. R eplace the p ro be an d probe-tip-to- BN C adapter wit h t he 50-Ω cable an d 50-Ω termination . η. Set the ge nerator to

produce α 5-division d is play.

ο. AD JU ST-The 100Χ LF Comp capacitor for best front corner . ρ. R eplace the 50- Ω ca ble and 50-Ω terminatio n with t he probe and p robe-tip-to- BN C adapter.

q . Set the ge nerator to produce α 5-division d isplay . r. AD JU ST-The 100 Χ I np ut C ca pacitor fo r best flat top. s. Repeat p arts m throug h r u ntil no furt her im provement is noted. t. Set the VER TICA L MOD E switch to CH 2.

Ad ju stme nt Procedure-2235 Service υ . R e p eat p arts b throug h s for Chann el 2. ν. Discon nect the test equi pment from the instrument .

10. Chec k Alte rn atio n Operatio n α. Set:

0 VERTICA L M OD E BOTHand ALT AC-G ND-DC (bot h) GN D Α and Β S EC/DI V 50 ms Α&Β ΙΝΤ CH 1 b. Position the Channel 1 and Chann el 2 tr aces about 2 d ivisions apart using the Chann el 1 and Channel 2 POSITION controls . c. CHE CK-Sweeps alte rnate for all the Α SEC/DI V switch settings . ΝΟΤΕ At sweep speeds of 2 ms per division or faster, the trace alternations occur too rapidly to be observed. 11 . Chec k C h op O p e ratio n α . Set: VERTICA L MOD E BOTHand CHO P Α SEC/DI 1 V As Α&Β ΙΝΤgVERT M OD E Α SO UR C E ΕΧΤ

12 . Adju st H ig h-Fr equ ency Compensation (C237), Delay L ine Compensation ( R240 and R241), and Ch a nn el 2 H ig h-Fre q ue ncy Compensation (C180) α. Set : VERTICA L MOD E BW LI M IT V OLTS/DI V (bot h) AC-G N D-DC (bot h) Α SEC/DI V Α SO UR CE

CH 1 Off (butto n o ut) 10 mV DC .05 μs ΙΝΤ

b. Connect the p ositive-going fast-rise s q ua re wave output via α 50-Ω cable, α 10 Χ attenuator, and α 50-Ω termination to the CH 1 OR Χ i np ut connector. c. Set the ge nerator to p roduce α 1-MHz, 5-division dis p lay. d. Set the to p of the display to the center horizontal graticule line using the Channel 1 POSITIO N control. e. ADJU ST-HF Pea k Comp (C237) for 2% overshoot (0 .1 division) on the d isplaye d signal . f. ADJU ST-D L Compl (13240) and DL Com p 2 ( R241) for best flat top on the front corner . . R epeat p arts e and f until no furt her im provement is noted .

b. Co nn ect the 10 Χ p ro be to th e ΕΧΤ I NPUT connector.

h. Set the CH 1

c. Connect th e 10 Χ probe tip to ΤΡ 537 .

i. Set the generato r to produce α 5-division display.

d. CHECK-Perio d of one complete square-wave cycle is between 1 .6 and 2.6 h orizontal divisions . e. Disconnect the 10Χ pro be from ΤΡ 537 and the ΕΧΤ INPUT co nnector .

V OLTS/DIV switch to 5 mV.

j . CHE CK-Dis play aberrations are within ±4% (0 .2 division or less).

k. R e peat part j fo r each of the following CH 1 V OLTS/DIV switch settings : 5 mV t hr ough 0.5 V . Adjust the

ge nerator output and add or remove the 10 Χ attenuator as f. CHECK-Two traces are visible fo r all Α S E C/DI V necessary to maintain α 5-d ivisio n display at each switch settings . V OLTS/DIV switch setting.

Adjustment Procedur e-2235 Service Ι . Move the ca ble from the CH 1 OR Χ input connector to

the CH 2 OR Υ in put connecto r. Set the VERTICA L MOD E switch to CH 2 .

m. Adjust the generator to p roduce α 5-division display. η . Set the top of the d isplay to the center horizontal graticule line u sing the Channel 2 POSITIO N co ntrol . ο. ADJU ST-C h 2 Hig h-Freq Comp (C180) for 2% overshoot (0 .1 division) on the displayed signal . ρ. Set the CH 2 V OLTS/DIV switch to 5 mV .

q.

R epeat

parts i t hroug h k for Channel 2.

13 . Adj ust 2-mV Pea king Compensation (C76 and C26) α. Set both VOLTS/DIV switches to 2 mV.

b. Set the ge nerator to p ro duce α 5-division dis play. c. Set the top of the d isplay to the center horizontal graticule line using the Chann el 2 POSITIO N control. d. ADJU ST-C h 2 2-mV Pea k Comp (C76) for 2% overshoot of the displayed signal . e. M ove the cable from the CH 2 OR Υ inpu t co nnector to the CH 1 OR Χ in pu t connector. Set the VERTICA L MOD E switch to CH 1 .

c. Wh ile h ol ding in the TRIG V I EW button, use the Α TR IGGER LEVEL control to ve rtically ce nter the d is play.

d. CHE CK-Dis play am plitude is 4 to 6 d ivisio ns while h ol ding in the TRIG V I EW button . e. M ove the cable from CH 1 OR Χ in put connecto r to the CH 2 OR Υ in put conn ector . Set th e VERTICA L MOD E switch to CH 2. f. R epeat parts ε and d. g. M ove the cable from the CH 2 OR Υ in put connector to the ΕΧΤ INPUT co nnecto r. Set the Α SO UR CE switch to EXT.

h.

R epeat

p arts c and d.

i . Set the Α ΕΧΤ CO UPLI NG switch to DC .

j.

R epeat

p arts c and d .

k. Set the Α ΕΧΤ CO UPLI NG switch to DC - 10 . Ι . Set the generator to pro duce α 5- V sign al . m. R epeat parts c and d. 15 . Chec k Position Range α. Set: VOLTS/DIV (b ot h)

f. R epeat parts b throug h d for Chann el 1, ad justing Ch 1 2-mV Pea k Comp (C26) in part d. g. Disconnect the test equ ipment from the in strume n t. 14 . Chec k T rigger V iew Gain α. Set: VOLTS/DI V (both) 0.1 V Α SEC/DI 0 V .2 ms b. Connect α 0 .5-V standard-amplitud e signal via α 50-Ω cable to the CH 1 OR Χ input co nn ector.

AC-G ND-DC (both) Α SO UR C E

50 mV AC ΙΝΤ

b. M ove the cable from the ΕΧΤ INPUT connector to the CH 1 OR Χ in put connector. c. Set the generator to produce α 0.5-V signal . d. Ad just the CH 2 V OLTS/DIV Varia ble control to produce α 4.4-division display. Set the CH 2 V OLTS/DIV switch to 10 mV. e. CHE C K-The bottom and top of the trace may b e p ositioned above and below the center horizontal graticule

Adjustment Proced ure-2235 Service line by rotati ng the Chan nel 2 POSITIO N co ntrol fully clockwise and countercloc kwise respectively . f. Move the ca ble from the CH 2 OR Υ input connector to the CH 1 OR Χ input connector . Set the VERTICA L MOD E switch to CH 1 . g. R epeat parts d an d e using the Chann el 1 controls .

c. CHE CK-Display am plitude is 4.2 divisions or greater as the generator outpu t frequency is increased up to the value s hown in Ta ble 5-5 for the corres ponding VOLTS/DIV switc h setting . Table 5-5 Settings for Bandwidth Check s VOLTS/DIV Switch Setting

Ge nerator Output Frequency

2 mV

90 MHz

5mV to5 V

100 MHz

h. Disconnect the test equipme nt from the instrume nt. ΝΟΤΕ Install the instrument cabinet for the remaining vertical checks and allow α 20-minu te warm-up period b efore continuing with the Adjustment Procedure. See the "Cabinet" remove and replace instructions located in the "Maintenance" section of the manual. 16 . Chec k Ban dwi dth Limit Operatio n α. Set :

M idrange BW LIMIT On (button in) VOLTS/DIV Variable (both) CA L dete nt DC AC-G ND-DC (both) Α20 SEC/DI V As Vertical POSITIO N ( bot h)

b. Connect the leveled sine-wave generator outpu t via α

50-Ω ca ble and α 50-Ω termination to the C H 1 OR Χ input connecto r.

0 c. Set the ge nerator to produce α 50-kH z, 6- divisio n display. d . Increase the ge nerator output frequency until the display am plitude decreases to 4 .2 divisions.

d . Repeat parts b and c for all in dicated CH 1 V OLTS/DIV switch settings, up to the outpu t-voltage upper limit of the sine-wave generator being used .

e. Move the cable from th e CH 1 OR Χ i nput conn ecto r to

t he CH 2 OR Υ in put connector. Set the VERTICA L MOD E switch to CH 2 .

f. R epeat p arts b and c for all in dicated CH 2 VOLTS/DIV switc h setti n gs, up to the outpu t-voltage upper limit of the si n e-wave generator being u se d.

18 . Chec k C hannel Isolatio n α. Set: V OLTS/DIV (both)

Channel 1 AC-G ND-DC Α SEC/DI V

1 V GND .1 AS

b. Set the generator to produce α 50-MH z, 5-d ivisio n display. c. Set the VERTICA L MOD E switch to CH 1 .

e. CHE CK-Generator output frequency is b etween 18 MH z and 22 MHz . 17 . Check Bandwi dth

e. M ove the cable from the CH 2 OR Υ in put connector to the CH 1 OR Χ in pu t connector .

α. Set: BW LI M IT

V OLTS/DIV (both)

d . CHECK-Display amplit ud e is 0.05 d ivisio n or less .

Off (bu tton out) 2 mV

b. Set the generator to p roduce α 50-kH z, 6-division d isplay.

f. Set: VERTICA L MOD E C h a nn el 1 AC-G N D-DC C hannel 2 AC-G N D-DC

CH 2 DC GND

Adju stment Procedure-2235 Service g. CHE CK -Display amplitude is 0.05 division or less .

h. Disco n nect t h e test equi p me n t from the instrument . 19 . Ch ec k Common-Mode R ejection Ratio α. Set : V O LTS/DI V (bot h)

I NVER T

C h a n nel 2 AC-G N D-DC

10 mV On (button in) DC

b. Connect th e leveled sine-wave gene rator output via α 50-Ω cable, α 50-Ω terminatio n, and α dual-inp ut coupler to the CH 1 OR Χ and CH 2 OR Υ in p ut connecto rs. c. Set the gene rator to pr oduce α 50-MHz, 6- division display.

d . Ve r tically center the display using the Channel 2 POSI-

TION co n trol . Th en set the VERTICA L MOD E switch to CH 1 and vertically ce nter the d is play u sing the Channel 1 POSITIO N control .

e. Set th e VERTICA L MOD E switc h es to BOTH and ADD. f. CHE CK-Display amplitude is 0.6 division or less .

k. Ad just the CH 1 or CH 2 VOLTS/DIV Variable co ntrol for minimum d is play am plitud e. Ι . Set the VERTICA L MOD E switch to CH 1 . m. Set the generato r to p roduce α 50-MH z, 6-division display. η. Set the VERTICA L MOD E switch to BOTH . ο. CHE C K-Display amplitude is 0.6 division or less . ρ. Disconnect the test equi p me nt from the in st rument. 20. Chec k Input Gate Current α. Set : VERTICA L MOD E V O LTS/DIV ( bot h) V O LTS/DIV V a r ia ble (both) AC-G ND-DC (bot h)

CH 1 2 mV CA L dete nt GN D

b. Position the trace on the center horizontal graticule line using the Chann el 1 POSITION control. c. CHE C K-For 0.1 d ivision or less trace shift while alternating the Channel 1 AC-G N D-DC switch between the AC and GND positions.

g . If t h e ch ec k i n p art f meets th e requ irement, skip to

d. Set the VERTICA L MOD E switch to CH 2.

h . Set the VERTICA L MOD E switch to CH 1 .

e. R epeat parts b and c u si ng the Channel 2 controls .

part ρ. If it does not, contin ue with p art h.

ΝΟΤΕ i. Set the generator to produce α 50-kH z, 6-division display. j. Set t he VERTICA L MOD E switch to BOTH .

To con tinue with the Adjustment Procedure, remove the instrument cabinet and allow α 20-minute time period to elapse before continuing with the Adjustmen t Procedure . See the "Ca binet" removal instructions located in the " Main tenance" section of the manual.

Adju stment Proce d ure-2235 Service

HOR IZO N TA L Equipme nt R equired (see Table 4-1) : Calibration Generator (Item 1)

50-Ω BN C Termination (Item 5)

Leveled Si ne- Wave Generator (Item 2)

Test Oscilloscope (Item 11)

Time-Mar k Generator (Item 3)

Screwdriver (Item 13)

50-Ω Ca ble (Item 4)

Low-Capacitance Alignment Tool (Item 14)

See

AD JU ST MENT L OCATIO NS 1

and

AD JU STMENT L OCATIO NS 3

at the back of the manual for test points and adjustments locations.

I N ITIA L CO N T R OL SE TTI N GS Vertical POSITIO N (bot h) Midrange VERTICA L MOD E CH 1 BW LIMIT Off (bu tton out) CH 1 V OLTS/DIV 0 .5 V CH 1 V OLTS/DIV Varia ble CA L detent Channel 1 AC-G ND-DC DC

H orizontal POSITIO N Midrange HOR IZONTA L MOD E Α Α an d Β0 SEC/DI V .1 ms SEC/DI V Variable CA L dete nt Χ10 M agnifier Off (knob in) Β D ELAY TIME POSITIO N Fu lly counterclockwise

ST EP S

1 . Adjust H orizontal Am p lifier Gain (R740 and R730) α. Connect 0.1-ms time markers from the time-mark generator via α 50-Ω ca ble and α 50-Ω te rmi n atio n to the CH 1 O R Χ input co nnecto r. b. Align the first time marker with t he fi rst (extreme left) vertical graticule line using the H orizontal POSITIO N control . c. ADJU ST-Α Sweep Gain (R740) fo r 1 time mar ker per d ivision over the center 8 divisions. ΝΟΤΕ

Β T RIGGER SLOPE LEVEL

PR OC E D URE

O UT Fully cloc kwise

When making timing meas urements, use as α reference the tips of the time markers positioned at the center h orizontal graticule line.

Α T RIGGER VAR HOLDO FF

Mode SLOPE LEVEL Α&Β ΙΝΤ Α SO UR CE

NORM Ρ-Ρ AUTO OUT M id range VERT M OD E ΙΝΤ

d. Set the HOR IZONTA L MOD E switch to Β. e. ADJU ST- Β Swee p Gain (R730) for 1 time ma rk er per division .

Ad ju stme nt Pr ocedu re-2235 Service 2. Adj ust Χ10 Horizontal Am plifier Gain (R754)

5. Chec k Position Range

α . Set:

α. Set :

HOR IZONTA L MOD E Α Χ10 Magnifier 10 On (knob out)

Ch annel 1 AC-G ND-DC Α SE C/DI V

DC

AS

b. Select 10-As time markers from the time-mar k generator.

b . Select generator.

c. Align the nearest time marker to the first vertical graticule li ne with t he first graticule li ne.

c. CHE C K-Start of t h e swee p can be positioned to the righ t of th e center vertical graticule line by rotating the H orizontal POSITIO N control fully cloc kwise .

d. ADJUST-X10 Gain (R754) for 1 time marker per

d ivisio n.

3 . Ad ju st

Mag nifie r Registratio n (R749)

α. Set the Α SEC/DI V switch to 0.2 ms . b. Select generator.

1-ms

time

markers from

d . CHECK-T he 11th time marker ca n be positio ned to the left of the ce nter vertical graticule line by rotating the Horizontal POSITIO N control fully countercloc kwise. e. Select 50-μs time generator.

the time-mark

c. Position the middle time marker to the center vertical graticule line using the Horizontal POSITIO N control. d . Set the

10-μs time markers from the time-mar k

X10 M ag nifier to Off (kno b in).

e . ADJU ST-M ag R egis (R749) to positio n t he middle time marker to the center vertical graticule li ne. f. Set the Χ10 M ag nifier to On (kno b out) and CHECK for no horizontal shift in the time marker.

markers from

the time-mark

f. Align th e 3rd time mark er with t he center vertical graticule line u sing the Horizontal POSITIO N co ntrol . g. Set th e

X10 M agnifier to On (kno b out).

h. CHE CK-Magnified time marker can be p ositio ned to the left of the center vertical graticule li ne b y rotati ng the Horizontal POSITIO N control fully counterclockwise . i. CHE C K-Start of the sweep can b e p ositioned to the right of the ce nter vertical graticule li ne b y rotati ng the Horizontal POSITIO N control fully cloc kwise .

g. R e peat parts ε t hroug h f until no furt her improvement is noted. 4 . Check Swee p

Lengt h

α. Set :

Chann0 el 1 AC-G N D-DC GND Χ10 M agnifier Off (knob in)

b. Position the start of the swee p at the first vertical graticule li ne using the Horizontal POSITIO N con trol . c. CHE CK-En d of the sweep is to the right of th e 11th vertical graticule li ne.

6 . Check Variable Range α. Set: Horizontal POSITIO N Α SE C/DI V SEC/DI V Variable Χ10 M agnifier

Midrange .2 ms Fully counterclockwise Off (kno b in)

b. Select 0.5-ms time markers from the time-mark generator. c. CHECK-Time markers are 1 d ivision or less apart.

5- 1 5

Adjustment Procedure-2235 Service 7 . Ad just Delay Dial Timi ng ( R646 and R 652) α. Set : HOR IZONTA L MOD E ALT Α SE C/DI V 0 .1 ms Β SE C/DI 1 V μs S EC/DI V Varia ble CA L detent Β DELAY 1 TIME POSITIO N .00 0 b. Select 0.1-ms time markers from the time-mar k

gene rator. 0

c. Adjust t he Α/ Β SWP SEP co ntrol to sepa rate the Α an d Β Swee p s. d. AD JU ST-Delay Start (R 646) so that the 2nd ΑSwee p time mar k er is intensified and the Β-Sweep time marker's rising edge starts at the beginning of the Β Swee p. e. Set the Β DELAY TIME POSITIO N dial to 9.00. f. AD JU ST-Delay End (R652) so that the 10th ΑSweep time mar ker is intensified and t he Β-Sweep time marker's risi ng edge starts at th e beginning of the Β Swee p. g. Set th e Β DELAY TIME POSITIO N dial to 1 .00.

h. Repeat p a rts d th roug h g u n til no further im provement is noted.

e. AD JU ST- Β H ig h Speed Timing (C713) for 1 time ma rker per division over the center 8 divisions .

9 . Adj ust 5- ns Timi ng and C785)

L inearity

(C775 an d

α. Set : CH 1 V OLTS/DIV HORIZONTA L MOD E Α SE C/DI V Χ10 M agnifier

.2 V Α .05 μs On (knob out)

b. Select 10-ns time markers from ge nerator .

the time-mark

c. Align the time markers with the vertical graticule li nes using the H orizontal POSITIO N control . d . ADJU ST-5-ns Timing (C775 and C785 alternately) for one time marker every 2 divisions over the ce nter 8 d ivisions of the magnified swee p . e. CHECK-Time markers between the 2nd and 4th vertical gratic ule lines should be aligned within 0.05 d ivisio n. If not, α slig ht com promise b etween timi ng and linearity s hould be made by readjusti ng the 5-ns Timi ng capacitors (C775 and C785).

10 . Chec k Timing Accu racy and

L inea r ity

α. Set: 8. Ad ju st0 H ig h-S pee d Timi ng (C703 an d C713) α. Set: HO RIZONTA L M OD E Α Α SE C/DI 0 V .1 μs

b. Select 0.1-As time markers from the time-mark generator. c. ADJU ST-Α Hig h Speed Timing (C703) for 1 time marker per division over the center 8 divisions . d. Set: HO RIZONTA L M OD E Β Α SEC/DI 0 V .2 μs Β SEC/DI 0 V .1 AS

5- 1 6

CH 1 VOLTS/DIV Χ10 M ag nifier Α TR IGGER Mode

.5 ν Off (k nob in) NORM

b. Select 50-ns time ma rkers from th e time-marker generator. c. Adjust the Α TR IGGER LEVEL control fo r α stable, triggered display. d . U se the Horizontal POSITIO N control to alig n t h e second time marker with t he second vertical gratic ule line . e. CHECK-Timing accuracy is within 2%ο (0.16 division at the 10th vertical graticule line), and linearity is within 5%ο (0 .1 division over any 2 of the center 8 divisions) .

Adjustme nt Procedure-2235 Service i. Use the H orizontal POSITIO N control to align the first time marker that is 25 ns beyond the start of th e sweep with t he second vertical graticule line .

Ta ble 5-6 Settings for Timi ng Accuracy Checks

SEC/DI V Switch Setting 0.05 As 0.1 As 0.2 μs 0.5 As 1 As 2 As 5 As

Time-Mark Ge nerator Setting

N ormal

Χ 10 M agnified

50 n s 0.1 As 0.2 As 0.5 As

10 10 20 50

ns ns ns ns

1 As 2 As 5 As

0.1 As 0.2 As 0.5 As

10 μs 10 AS 20 As 20 As 500 As 50 As 0 0.1 ms 0.1 ms 0.2 ms 0.2 ms 0.5 ms 0.5 ms

1 AS 2 As 5 As 10 As 20 As 50 As

1 ms 2 ms 5 ms

1 ms 2 ms 5 ms

0.1 ms 0.2 ms 0.5 ms

10 ms 20 ms 50 ms

10 ms 20 ms 50 ms

1 ms 2 ms 5 ms

Α Sweep Only 0.10 s 0.1 s 0.2s 0.2s 0.5s 0.5s

10 ms 20 ms 50 ms

NOTE For checking the timing accuracy of the Α S EC/Dl V switch settings from 50 ms to 0.5 s, watch the time marker tips only at the 2nd and 10th vertical graticule lines while adjusting the Horizontal POSITION control.

f. R epeat p arts c thro ugh e for the remaining Α SE C/DI V and time-mar k generator setting combinatio ns shown in Table 5-6 u nder th e" N ormal" column . g. Set the Χ10 M agnifier to On (knob out) .

h. Select 50-ms time markers from the time-mark gener-

ator when0 c h ec king th e Α Sweep a nd 5-ms time markers when c hec king the Β Sweep.

j. CHE CK-Timing accuracy is within 3% (0 .24 d ivision at the 10th vertical graticule li ne), and li nearity is within 5°/ε (0 .1 d ivision over any 2 of the center 8 divisions) . Exclude any portion of the sweep past the 100t h magnified division .

k. R epeat parts i an d j for the remaining Α SE C/DI V and time-mar k generator setting combinations show n in Ta ble 5-6 under the "Χ 10 Magnified" column . Ι. Set:

H ORIZONTA L MOD E Α SEC/DI V Β SEC/DI V Χ10 M agnifier

Β .1 AS .05 As Off (k nob in)

m. Repeat parts b throug h k for the Β Swee p. Kee p the Α SEC/DIV switch one setting slower than the Β SEC/DI V switch.

11 . Chec k Delay Time Dial Range and Accuracy α. Set: Ch ann el 1 AC-G N D-DC HOR IZONTA L MOD E Α and Β SE C/DI V Χ10 Magnfier Β DELAY TIME POSITIO N Α TR IGGER Mode

GND ALT .2 ms Off (knob in) Fu lly counterclock wise Ρ-Ρ AUTO

b. Align the start of the Α Sweep with t he 1 st vertical gratic ule line using the H orizontal POSITIO N cont rol . c. CHE CK-Intensified portion of the trace starts within 0.5 d ivision of the start of the sweep.

d . Rotate the Β DELAY TIME P OSITIO N control fully clockwise . e. CHECK-I ntensified portion of the trace is past the 11 th ve rtical graticule li ne. f. Set: Α an d Β SE C/DI V Β DELAY TIME POSITIO N

.5 As Fully countercloc kwise

Adju stme n t Procedure-2235 Service g. Align the start of the Α Swee p with t he 1 st vertical graticule line using the H orizontal POSITIO N cont rol . 5 0 h. CHE1 CK-I ntensifie d portion of the trace starts within 1 .1 divisions of the start of th e swee p.

ρ. Set: Α SE C/DI V Β SEC/DI V Β DELAY TIME POSITIO N

q . Select generator.

i. R epeat p arts d and e. j. Set :

5-μs time

μs .5 μs .00

markers

from

the time-mark

r. Adj ust the Horizontal P OSITIO N control so that t he rising edge of the displayed time marker is aligned with t he ce nter vertical graticule line .

Chann el 1 AC-G ND-DC DC HO RIZONTA L MOD E Β Α SEC/DI V 0 .5 μs Β S EC/DI V 0 .05 μs Β D ELAY 1 TIME POSITIO N .00 k . Select 0.5-ps time markers from th e time-mar k generator. Ι . Adjust the H orizontal POSITIO N control so that the top of th e first fully displayed time marker is aligned with t he center vertical graticule li ne. m . W ith out changi ng the Horizontal POSITIO N control setting, set th e Β DEL AY TIME POSITION dial to 9.00. Slig htly readju st th e Β DELAY TIME POSITIO N dial to alig n t he top of the time marker with t he center vertical graticule line .

s. W it hout changing the H or izontal POSITIO N control setting, turn the Β DELAY TIME P OSITIO N dial cloc kwise to position the next time ma rk er leading edge to the ce n ter vertical gratic ule li ne. t. CHE C K-The Β DELAY TIME POSITIO N dial setting is 0.975 to 1 .025 greater th a n t he p revious setting. υ. Set the Β DELAY TIME POSITIO N dial to the exact intege r setting. ν. Repeat p arts r throug h υ for each successive time marker up to the marker co rrespondi ng to the Β DELAY TIME POSITIO N d ial setting of 10 .00 .

η . CHE C K-T he Β DELAY TIME POSITIO N dial setting is b etween 8.905 and 9.095 . ο. R epeat p arts Ι t hroug h η for t he remaining Α and Β S EC/DI V and time-mar k ge nerator setting com binatio ns show n in Table 5-7. 0 0 10 Table 5-7

12 . Check Delay

J itte r

α. Set: Α S EC/DI V Β SEC/DI V Β DELAY TIME POSITIO N

.5 ms .5 μs .00

Settings for Delay Time Accu r acy Chec ks

Α SEC/DI V Β SEC/DI V TimeMark Switch Setting Switch Setting Generator Setting 0.5 ps

0.05 μs

0.5 us

5 ps

0.5 us

5 μs

0.5 ms

50 μs

0.5 ms

5 ms

0.5 ms

5 ms

0.5 s

5- 1 8

50 ms

0 .5 s

b. Select 50-Ει s time markers from generator.

the time-mar k

c. R otate the Β DEL AY TIME P OSITIO N dial counterclockwise to position α time marker within th e gratic ule area for each major dial d ivisio n and CHE CK t hat the jitter on the leading edge d oes n ot exceed 0.5 d ivision . Disregard slow drift. d. Disconnect the test equi pment from the inst rument.

Adjustment Procedure-2235 Service 13 . Check Sweep Separation α. Set: HORIZONTAL MODE Α and Β SEC/DIV

A LT

0.5 ms

b. Use the Channel 1 POSITION control to set the Α Sweep at the center h orizontal graticule line . c. CHECK-The Β Sweep can be p ositioned more than 3.5 divisions above and below the Α Swee p when the Α/Β SWP SEP control is rotated fully clockwise and counterclockwise respectively .

d . CHECK-Display is at least 3.5 h orizontal d ivisions . e. Disconnect the test equipment from the instrument .

16 . Check Α-Sweep Holdoff α. Set: Α S EC/DIV VAR HOLDOFF

α. Set: 10 mV Χ-Υ

b. Connect α 50-mV standard-amplitude signal via α 50-Ω cable to the CH 1 or Χ input connector. ε. ADJUST-Χ Gain (R760) for exactly 5-divisions of

h orizontal deflection .

d . Disconnect the test equipment from the instrument .

15 . Check Χ

I

ε. ncrease the generator output frequency to 3 MHz .

H ORIZONTAL MODE

14 . Adjust Χ Gain (R760) CH 1 V OLTS/DIV Α SEC/DIV

b. Set the generator to p roduce α 5-division h orizontal display at an output frequency of 50 kHz.

B an dwidth

α. Connect the leveled sine-wave generator output via α 50-Ω cable an d α 50-Ω termination to the CH 1 OR Χ i nput connector.

Α 1 ms NORM

b. Connect the test oscilloscope and its 10Χ p robe tip to the front end of R 707 (toward the front p anel) which is located on the Timing circuit board . c. CHECK-The Α-Sweep holdoff is greater then 3 ms but less than 7 ms . d. R otate the VAR HOLDOFF control to the maximum clockwise position (MAX). e. CHECK-The Α-Sweep holdoff h as increased by α factor of 10 or more . f. Disconnect the test oscilloscope 10Χ p robe from

R 707.

Adjustme nt Procedur e-2235 Service

TRIGG ER E quipme nt Req uired (see Table 4-1) : Leveled Sine- Wave Generator (Item 2)

10 Χ Atte nu ator (Item 7)

50-Ω BN C Cable (Item 4)

Digital V oltmeter (Item 12)

50-Ω BN C Termination (Item 5)

Screwdriver (Item 13)

See

AD JU ST MENT L OCATIO NS 1

at the back of this manual for test points and a djustment locations.

I N ITIA L

CO N TRO L SE TTI N GS

ST EP S

1 . Adju st Trigger Offset (11309)

Vertical (B oth C h annels) Midrange POSITIO N BOTH-ALT VERTICA L MOD E Off (button out) BW LIM IT 0 V .5 V V OLTS/DI V OLTS/DIV Varia ble CA L detent I NVER T Off (button out) GND AC-G ND-DC

α. Set the Channel 1 trace and the Channel 2 trace to the center h orizontal graticule li ne using the Channel 1 and Chann el 2 POSITIO N co ntrols. b. Connect the digital voltmeter low lead to chassis ground and the h ig h (volts) lead to W4000-1 (Alt Sweep L ogic circuit board connector to the M ain circuit board) . c. CHECK-The offset voltage readi ng is less than 80

m V . Note the reading for u se in part e.

H orizontal P OSITIO N Midrange H ORIZO NTA L MOD E Α Α an d Β1 SEC/DI V ms CA L detent SEC/DI V Variable Off (k nob in) Χ 10 M agnifier Β DEL AY TIME POSITIO N Fully counterclockwise

d. Set the Α&Β ΙΝΤ switch to CH 1 . e. ADJU ST-Trigger Offset ( R 309) so that th e voltage reading is the same as t h at obtained in part c. f. Set the Α&Β ΙΝΤ switch to CH 2.

Β TRIGGER SLOPE LEVEL

PR OC E D URE

OUT Midrange

g. R epeat parts ε t hroug h f until there is 1 mV or less

d iffere nce in the voltmeter readings between t he CH 1 and CH 2 positions of the Α&Β ΙΝΤ switch.

Α T RIGG ER VAR H O L DO FF

N ORM Ρ-Ρ AUTO S LOPE OUT LEVEL Mid range Α&Β ΙΝΤ 0CH 2 Α SO UR CE ΙΝΤ Α ΕΧΤ CO UPLIN G 10 DC

M ode

2. Adju st Trigge r Se nsitivity (R479) α. Set: VERTICA L M OD E CH 1 V OLTS/DI V AC-G ND-DC (bot h) Α SEC/DI V

CH 1 .1 V AC us

Adju stme nt Procedure-2235 Service b. Connect the leveled sine-wave gene rator output via α 50-Ω cable and α 50-Ω te rmi nation to the CH 1 O R Χ in put connector. 5 50 c. Set0 the generator to produce α 50-kH z, 2.2-division display.

d. Set the CH 1

V OLTS/DIV switch to 1 V .

e. AD JU ST-Trigger Se nsitivity (R479) while rotating the Α TR IGGER LEVEL co ntrol slowly so that the Α Trigge r is j ust able to be maintained .

3 . Ad just Slope

5. Chec k Inte rnal Trigge ring α. Set: CH 1 V OLTS/DIV CH 2 V OLTS/DIV Α and Β SE C/DI V Α&Β ΙΝΤ

mV mV .2 μs CH 1

b. Set the generator to p roduce α 10-MHz, 3-division

d is play.

ε. Set the CH 1 V OLTS/DIV switch to 50 mV .

d. CHE CK-Stable display can be obtained by adjusti ng the Α TR IGGER LEVEL co ntrol for each switch combination given in Table 5-8 .

B alance (R471)

α. Set the CH 1 V OLTS/DIV switch to 50 mV .

b. Set the generator to p rodu ce α 4-division dis play. c. ADJU ST-Slo pe ΒαΙ (R471) for α downward vertical shift of 0.22-division at th e start of t h e swee p when changing the Α TR IGGER SL OPE switch between t h e OU T and IN positions .

4. Adj ust Ρ-Ρ Au to Trigger Ce n te ri ng ( R 434 and

R435)

Table 5-8 Switch Combination s for Α Trigge ring Chec ks Α TR IGGER Mode

Α TR IGGER SLOPE

NORM

OU T

NORM

IN

Ρ-Ρ AU TO

IN

O UT

Ρ-Ρ AU TO

α . Set: Α Α

T RIGGER S LO PE T RIGGER LEVEL

O UT F ully

cloc k wise

b. Set t he ge n erator to prod uce α 50- kH z, 5-division

display.

c. Set the CH 1 V OLTS/DIV switch to 0.5 V . d . AD JU ST-(+) Auto ( R434) so that the vertical display j ust solidly triggers on the positive peak of the signal . e. Set : Α TR IGGER SL OPE Α TR IGG ER LEVEL

IN Fully co untercloc kwise

f. ADJU ST-(-) Auto (R435) so th at the display ju st solidly triggers on the negative peak of the signal .

e. Set t he

H ORIZON TA L MOD E switch to

Β.

f. CHE CK-Stable d isplay can be obtain ed b y adj usting th e Β TR IGGER LEVEL control in α position other than the Β RUN S AFTER DLY positio n for b ot h t he OUT and IN positions of the Β TR IGGER SLO PE switch. g . Set: VERTICA L MOD E H ORIZONTA L MOD E Α&Β ΙΝΤ

CH 2 Α CH 2

h. Move the cable from the CH 1 OR Χ i np ut co nnecto r to th e CH 2 OR Υ i nput conn ector. i. Repeat parts d thro ugh f.

Adju stme nt Pr oced ure-2235 Service j . Set:

6 . Chec k External Trigge ri ng

H OR IZONTA L MOD E Α Α SEC/DI 0 V .1 AS Χ 10 M agnifier On (knob out)

k. Set the generator to produce α 60-MH z, 1 .0-division dis play.

VERTICA L MOD E HORIZONTA L MOD E Χ10 M agnifier Α SO UR CE

CH 1 Α Off (kno b in) ΕΧΤ

b. Connect α 35-m V, 10-MHz leveled sine-wave sig n al via α 50-Ω ca ble and α 50-Ω termination to the ΕΧΤ INPUT connector.

Ι. Repeat parts d throug h f. m. Set: VERTICA L MOD E HORIZONTAL MOD E Α&Β ΙΝΤ

α. Set:

CH 1 Α VERT MOD E

η. M ove the cable from the CH 2 OR Υ in put connector to the CH 1 OR Χ i nput connector. ο. Repeat parts d t hroug h f.

d . CHE CK-Stable display can be obtai n ed by adju sting the Α TR IGG ER LEVEL control for eac h switch combination given in Table 5-8. Then release t he TR IG V I EW button. e. Set the generator out p ut voltage to 120 mV and t he frequency to 60 MH z. Set the Χ10 M agnifier to On (kn ob out) . f. Repeat parts c and d.

ρ. Set: HORIZONTA L MOD E Α Α SEC/DI 0 V .05

c. Pus h in an d hold the TRIG V I EW button.

gs

q. Set the generator to produce α 100-MHz, 1 .5-divisio n

g. Set the generator output voltage to 200 mV and the fre q uency to 100 MH z.

h.

R e peat parts c and

d.

display.

i. Disconnect the test equi pment from the instrument . r. Repeat parts d through f.

s. Set:

7. C hec k Exter nal Trigge r Ranges

VERTICA L MOD E CH 2 α. Set: Α HOR IZON TA L MOD E 0 CH 1 V O LTS/DIV 20 Α SEC/DI V Off Χ10 M agnifier t. M ove the ca ble from th e CH 1 OR Χ i nput connector Α TRIGGER Mode to the C H 2 OR Υ input connector.

.5 V ,us (knob in) N ORM

υ. R epeat p arts d through f.

b. Co nn ect the levele d sine-wave ge nerator output via α 50-Ω cable, α 50-Ω termination, and α dual-inpu t co up ler to bot h t he CH 1 OR Χ and ΕΧΤ I NPU T co nnecto rs.

ν. Disconnect the test equipment from the instrument .

ε. Set the generator to produce α 50-kH z, 6 .4-division display.

Adjustment Proce dure-2235 Service

d. CHECK-Display is triggered along the entire positive slope of the waveform as the Α TRIGGER LEVEL control is rotated . e . CHECK-Display is not triggered (no trace) at either extreme of rotation . f. Set the Α TRIGGER S LOPE button to IN . g. CHECK-Display is triggered along the entire negative slope of the waveform as the Α TRIGGER LEVEL control is rotated.

h . CHECK-Display is not triggered (no trace) at either extreme of rotation .

c. Press in the SGL SWP button . The READY LED should illuminate and remain on .

d . Set the Channel 1 AC-GND-DC switch to DC .

e. CHECK-READY LED goes out and α single sweep occurs .

ΝΟΤΕ Th e Α INTENSITY control may require adjustment to observe the single-sweep trace.

f. Press in t he SGL S WP button several times. 8. Check Single Sweep Operation α. Adjust the Α TRIGGER LEVEL control to obtain α stable display.

b. Set: Channel 1 AC-GND-DC Α SOURCE

GND ΙΝΤ

g . CHECK-Single-sweep trace occurs, and t he READY LED illuminates briefly every time the SGL SWP button is p ressed in and released .

h . Disconnect the test equipment from the instrument .

Adjustment Procedure-2235 Service

EXT ERNA L Z-AXIS AN D PROBE AD JUST E quipme nt Requi red (see Table 4-1): L eveled Sine-Wave Generator (Item 2)

BN C Τ-Conn ector (Item 8)

Two 50-Ω BN C Ca bles (Item 4)

10 Χ Probe (provide d with n strument)

50-Ω BN C Te rmination (Item 5)

IN ITIA L CO NTROL

S ETTINGS

Vertical Chan nel 1 P OSITIO N Midrange VERTICA L MOD E CH 1 BW LI M IT Off (button out) CH 1 V OLTS/DI 1 V V CH 1 V OLTS/DIV Variable CA L dete nt Channel 1 AC-G ND-DC DC

Horizontal POSITIO N Midra nge HORIZO NTA L MOD E Α Α 20 S E C/DI V μs SEC/DI V Varia ble CA L detent Χ10 M agnifier Off (kn ob in)

i

connector . Then connect α 50-Ω ca ble and α 50-Ω termination from th e Τ-connector to the ΕΧΤ Ζ AXIS INPUT connector on the rear panel .

b. Set the generator to produce α 5- V, 50-kH z signal . c. CHECK-For noticeable intensity modulation . The positive part of the si ne wave s hould be of lowe r i ntensity than the negative p art. d . Disconnect the test equi pment from the instrument. 2. Chec k Pr obe Adju st Operatio n α. Set:

Α T RIGGER

10 VAR HOL DO FF NORM Mode 0Ρ-Ρ AUTO S L OPE OUT LEVEL Midrange Α&Β ΙΝΤ VERT M OD E Α SO UR CE ΙΝΤ

PR OC E D URE ST EPS

CH 1 V OLTS/DIV Α S EC/DI V

mV .5 ms

b. Co nn ect the 10 Χ Probe to th e CH 1 OR Χ in put co nnector and insert the probe ti p i n to th e PR OBE ADJU ST j ac k on t he instrument front p anel . If n ecessary, adjust the p robe com p ensation for α flat-topped squ a r e-wave display.

1 . C heck Extern al Ζ -Axis Operatio n

c. CHECK-Dis play amplitude is 4.75 to 5.25 d ivisio ns.

α. Connect the leveled sine-wave generator output via α 50-Ω cable and α Τ-con n ector to the CH 1 OR Χ in p ut con-

d. Disconnect the probe from th e instrument .

Section 6-2235 Service

M AI NTENANC E T his section of the manual contains information for conducting maintenance on the 2235 Oscilloscope .

p reventive maintenance, troubleshooting, and corrective

STATIC-S EN SITI VE CO MP ONEN TS The following precautions are applicable when performing any maintenance involving internal access to the instrument .

Table 6-1 Susceptibility to Static Discharge Damage

CA U TIO N Static discharge can damage any semiconductor componen t in th is instrument. This instrument contains electrical components that are susceptible to d amage from static discharge. Table 6-1 lists the relative susceptibility of various classes of semiconductors . Static voltages of 1 kV to 30 kV are common in unprotected environments . When performing maintenance observe the following precautions to avoid component d amage: 1 . M inimize handling of static-sensitive components . 2. Transport and store static-sensitive components or assemblies in their Original containers or on α metal rail . L abel any p ackage that contains static-sensitive components or assemblies . 3. Discharge the static voltage from your body b y wearing α grounded antistatic wrist strap while h andling these components . Servicing static-sensitive components or assemblies should be performed only at α static-free work station by qualified service p ersonnel . 4 . Nothing capable of generating or holding α static charge should b e allowed on the work station surface. 5. K eep the component leads shorted together whenever possible. 6. Pick up components by their bodies, never leads.

by their

Semiconductor Classes

R elative Susceptibility L evelse

M OS or CMOS microcircuits or discretes, or linear microcircuits with MOS inputs . (Most Sensitive) ECL

2

Schottky signal d iodes

3

Schottky TTL

4

High-fre quency bi polar transistors

5

JFETs

6

Linear microcircuits

7

Low-power Schottky TTL

8

TTL

(Least Sensitive)

9

avoltage equivalent for levels: (Voltage discharged from α 100 pF capacitor t hrough α resistance of 100 Ω .) 1 = 100 to 500 ν α = 500 ν 7 = 400 to 1000 V(est.) 2=200to500V 5=400to600V 6=900V 3=250V 6=600to800V 9=1200V 7. Do not slide the components over any surface. 8. Avoid h andling components in areas that h ave α floor or work-surface covering capable of generating α static charge . 9 . Use α soldering iron that is connected to earth ground . 10 . Use only approved antistatic, desoldering tools for component removal.

vacuum-type

Mai n tena n ce-2235 Service Table 6-2 E xtern al In spectio n C h ec k list Inspect Fo r

Item

Ι

R epair Action

Cabinet and Front Pa nel

Crac k s, scratc hes, deformations, and damaged h ardware or gas kets.

Touch up paint a n d re place d efective parts .

Front-panel Co ntrols

M issing, damaged, or loose k no bs, button s, a nd

Repair or re place missing or defective items .

Connectors

Bro ken sh ells, c r ack ed insulation , an d deformed

Replace d efective p arts . Clean or wash out d irt.

Carryi ng H and le

Co rr ect operation .

Replace

Accessories

Missing items o r pa rts of items, bent pin s, brok en or frayed cables, and damaged co nnectors .

Replace damaged or missing items, frayed

controls .

contacts . Dirt in connectors .

defective p arts .

cables, a n d defective parts .

Table 6-3 In tern al In spection C h ec k list Item I

I nspect F or

R epai r Actio n

Circuit Boards Loose, b ro ken, o r co rr oded solder con nectio n s. Clean solder corrosion with an er ase r an d flus h wit B u r ned circuit boards. B urned, b ro ken, o r h isopropyl alco h ol . R esolder defective crack ed circuit-run plating. connections . Determine cause of b u rned items and repair. R epair defective circuit runs . R esisto r s

B urned, crack ed, bro ken, o r blistered.

Solder Conn ections

Cold solder or rosin joints .

Ca pacitors

Damaged or lea king cases. Corroded solder on leads or terminals .

Wiring a n d Ca bles

L oose plugs or connectors . Bu rned, brok e n, or frayed wiring .

Chassis

Dents, deformatio ns, and damage d hard ware .

If any electrical component is re placed, conduct α Performance Check of the affected circ uit and of ot h er closely related circuit (see Sectio n 4) . If repair or replacement work is done on any of the p owe r s upplies, conduct α complete Performance Check and, if so in dicated, an instrument readj ustment (see Section 5) . CA U TIO N To prevent damage from electrical arcing, en sure that circuit boards and components are dry before applying power to the instrumen t.

R eplace defective resistors. C hec k for cause of

burned component and repair as necessary.

Ι R esolder j oint and clean with isopropyl alcoh ol . R eplace defective capacitors. Clean solder

~ connections and flus h with isopropyl alco hol .

F irmly seat connectors . Repair or re place d efective wires or cables. Straighten, re pai r, or replace defective h ardware .

CLEANIN G. To clean the interior, blow off dust with dry, low-pressure air (approximately 9 psi). Remove any remaini ng dust with α soft brush or α clot h dam pened with α solution of mild detergent and water. Α cotton-tipped applicator is useful for cleaning in narrow spaces and on circuit boards . If these methods do not remove all the dust or dirt, the inst ru ment may be spr ay was h ed using α solution of 5°/ε mild detergent an d 95% water as follows : 1 . Gain access to th e parts to be cleaned (see " R emoval and R eplacement Instructio ns").

M aintenance-2235 Service 2. Spray wash dirty parts with the d etergent-and-water solution ; then use clean water to thoroughly rinse them . 3 . Dry all parts with low-pressure air.

SWITCH CONTACTS . The VOLTS/DIV and THE SEC/ DIV Switches are mounted circuit-boards within t he instrument . Care must b e exercised to preserve the h igh-frequency characteristics of these switches. Switch maintenance is seldom necessary, but if it is required, observe the following precautions . 1 . The VOLTS/DIV contacts .

switches

Spray only for approximately five seconds, using an atomizing spray device .

b. Dry b oth the switch and the circuit board on which it is mounted, using dry low-pressure air.

c. B ake the switch and t he circuit board in an oven at 75°C (167°F) for 15 minutes to eliminate all moisture .

d . Spray α very small amount (only about α 1/2-second

sq uirt) of α recommended l ubricant, such as No Noise, into the slots at the top of the switch housing.

e. Rotate the switch control k nob about 180° and again spray α very small amount of lubricant into each slot .

contain cam-actuated

CAUTION

Most spray-type circuit coola n ts contain Freon 12 as α prop ellan t. Because many Freons adversely affect switch contacts, do not use α spray-typ e coolants . The only recommended circuit coolants for the voltsdivision attenuators are dry ice (CO ) and isopropyl alcohol. α. Use only isopropyl alcohol as α cleaning solution, especially in the area of the vertical Attenuator circuit board. Carbon-based solvents will damage the board material . b. Apply the alcohol with α small, camel-hair brush. Do not use cotton-tipped applicators when cleaning contacts . 2. The SEC/DIV switch is comprised of rotary-activated contacts . C Α υ Ti ON Use only h ot deίonized or distilled water, 55°C (131 OF), to clean the timing switch in this instrument. Tap water contain s impurities which are left as residuals after evaporation. a. Spray h ot water into the slots at the top of each switch housing while rotating the switch control knob .

LUBRICATION M ost of the potentiometers u sed in this instrument are permanently sealed and generally d o n ot require p eriodic lubrication . All switches, both rotary- and lever-type, are installed with pro p er lubrication applied where necessary and will rarely require any additional lubrication . Therefore, α regular periodic lubrication program for the instrument is n ot recommended.

S EMICONDUCTOR CHECKS Periodic checks of the transistors and other semiconductors in the oscilloscope are not recommended. The best check of semi-conductor p erformance is actual operation n t he instrument .

i

PERIODIC READJUSTMENT To ensure accurate measurements, check the perfor hours of operation, or if used infrequently, once each year . In addition, replacement of components may necessitate readjustment of the affected circuits . r'rιance of this instrument after every 2000

Complete Performance Check and Adjustment instructions are given in Sections 4 and 5. The Performance Check Procedure can also be helpful in localizing certain trouble in t he instrument . In some cases, minor problems may be revealed or corrected b y readjustment . If only α partial adjustment is p erformed, see the interaction, chart, Table 5-1, for p ossible adjustment interactions with other circuits .

Mai n tena n ce-2235 Service

T ROUBLE S H OOTI NG Ci I N TR OD UCTIO N

Preventive mai n ten ance performed on α r egular basis

s h ould reveal most potential p roblems b efo re an instrumen t malfunctions . H owever, sh ou ld troubles hooti ng be requi re d , t h e followi n g informatio n is pr ovided to facilitate location of α fa u lt . In addition , the mater ial prese nted in t h e "T h eory of Operatio n " and t h e "Diagrams" section s of t his ma nu al may be h elpful wh ile troubles h ooti n g. TR OUBLE SH OOTI N G AIDS Sch ematic Diagrams Complete sc h ematic diagrams are located on tabbed foldo u t pages in th e "Diagrams" section . Th e portio ns of circuit ry th at a re moun ted on eac h ci rcu it board a re enclose d wit h in h eavy black lines . Also with in th e blac k lines, near eith er th e top or t h e bottom edge, are t he assem b ly num ber an d name of t h e circuit b oard . Compon en t n um b e rs a nd elect rical val u es of com p onents in t h is in strument are s how n on t he schematic diag rams. Refer to t h e first p age of t h e "Diag r ams" section for definitions of t h e referen ce d esig n ators and sym bols used to iden tify com p o n ents. Ci rc u it

Boa rd

Illust rations

Circuit board illust r ations (s h owing th e physical location of each com p one n t) are provi d ed for u se in conjun ction wit h eac h sc h ematic d iagram . E ach board ill ustration can be found on t h e bac k side of α foldout p age, preceding t he sc hematic diagram(s) to wh ic h it relates . If more th a n one sc h ematic diagram is associate d wit h α particula r circuit board , t he b oard illust r atio n is located on α left-h an d p age preceding t he diagram with whic h t h e boa rd is fi r st associated . Also p rovi d ed in th e "Diagrams" section is an illust ration of th e bottom side of t h e M ai n circuit board . Th is drawing facilitates trou b les hooting by s h owi n g th e co nnection pads a n d t h e locatio n of com po nents th at are moun ted on t he top side of t he b oard . P ro b i ng of M ain board com ponent signals t h at a r e i n accessi b le from the to p side ca n be ac h ieved wit h o u t t h e n ecessity of disassembli n g portio n s of th e i nstrument . Wavefo rm test-point locations a re also identified on t he circuit boa rd illustration by hexagonal-ou tlined nu mbers t h at corres p on d to t he waveform nu mbers a ppearing on bot h t he sc hematic diagram and th e waveform ill ustration .

rc u it

B oa rd Locatio n s

An ill u stration d epicting t h e location of α circ u it board wit h in th e inst ru ment is s hown on t he foldout p age ad j ace nt to t h e circuit board illustration . Ci rcuit

B oard I n ter connection

Diag ram

Α circuit boar d cable dist r i bu tion diagram and conn ectorpi n locato r ta b le is p rovi d ed in t he "Diagrams" section to aid i n tracing α sig n al path or power sou rce b etween boards. All wi res, p lug a nd j ack num bers are s how n along with wire o r pi n nu mbers.

P owe r Distrib ution

Diag ram

Α P ower Distribution diagram 8 is p rovided to aid in t rou bles hooting power-supply p roblems. T h is diagram sh ows service j um p ers used to remove power from t h e various circuit board s. Excessive loadi n g on α power supp ly by α ci rc u it board ca n be isolated to t h e fau lty b oard by d isconnecting app ro p riate service ju mpers.

Grid Coo rd i n ate System

Eac h sch ematic diagram and circuit b oa rd illust ration h as α gri d b order alo ng its left and top edges. Α table located adj ace n t to eac h sc hematic diag r am lists t he g r id coo rdinates of eac h componen t s h own on that sc hematic . To ai d in physically locating α com ponen t on t he res pective circu it boa rd , t h is table also lists t he ci rc u it- b oa rd grid coo rdi n ate of each component. Adj acent to each circ u it board illust r atio n is an alphanumeric listi n g of every compone n t mounted on that boa rd . Α secon d col u mn in th is listi ng identifies t he sc hematic diag ram i n wh ich eac h com po nen t can be found . T h ese compon e nt-locator tables are es pecially useful wh e n more t h a n on e sch ematic d iagram is associated wit h α p articu lar circuit b oard .

Tr o ublesh ooting Ch arts

T h e trou bles h ooti n g ch arts co ntai ned i n th e "Diagrams" section are to b e used as an aid in locati ng malfun ctio n ing circuit ry. To use t h e ch arts, begin with t he Tr o ublesh ooti ng Guide. Th is ch art will h el p identify α particula r problem area for furt her troubles h ooti n g.

Maintenance--2235 Service Note that some troub les hooting-proced ure boxes on eac h c h a rt contain numbers along their lower e d ges. These numbers identify t h e app lica ble schematic d iagram(s) to b e use d when performi ng t he action specified in the box . Both General and Speci fic notes may be calle d out in t he troubles hooting-c hart boxes . Th ese notes are located on t he inne r panels of t he foldout p ages . Specific Notes contain proced ures or a dd itional informatio n to be used in performing the partic ular troub les hooting step calle d for in that box. General Notes contai n i nformation that pertains to t he o verαΙΙ troub leshooting p rocedu re. Some malfunctions, es p ecially those involving multiple simultaneous failures, may requi re mo re elaborate troub leshooting approaches with references to circuit descriptions in the "T heory or Operation" section of this man ual . Component Color Coding

I nformatio n regarding color codes an d markings of resis-

tors and ca pacitors is located in the color-co d ing ill ustratio n (Figure 9-1) at the begi nning of the "Diag rams" section . RE SISTOR CO L OR CODE. R esistors use d in this instrument are carbon-fil m , composition, o r precision metal-film types. They are color co ded with t he ΕΙΑ colo r code ; however, some metal-film resistors may h ave t he val ue p rinte d on the body. The colo r co d e is in te rp reted b y starting with the strip that is nearest to one en d of t h e resisto r. Com position resistors h ave fo ur stripes ; t h ese represent two significant figures, α multiplie r, an d α tolerance value. Metal-fil m resistors h ave five stri pes whic h represe nt thr ee significant figures, α multiplier, an d α tolerance value. CA PACITOR MARK INGS . Ca pacita n ce values of common disc capacitors an d smal l electrolytics are mark e d on the side of th e capacitor b od y. Wh ite ceramic ca pacitors are color code in picofarads, using α modified ΕΙΑ co d eare color coded in Dipped tan talu m ca p acitors microfarads . T h e color d ot in d icates both t h e positive lead and the voltage rating . Since these capacitors are easily d estroyed by r eve rsed or excessive voltage, be careful to observe the p ola rity and voltage rating.

DIOD E CO L OR CODE . T he catho de end of each glassencase d diode is i n dicated by either α stripe, α series of stripes, or α d ot . For most silico n or germa n iu m d iod es ma rk e d with α series of stri pes, the color combinatio n of the st ri pes ide ntifies three d igits of the Te ktronix Part Nu m be r, u sing the r esisto r colo r-code system (e.g ., α d iode h aving either α pin k or α blue stri p at the cathod e end, then α

b rown-gray-green stripe com b ination, in dicates Te ktronix

Part N u mb e r 152-0185-00) . The catho d e and anode en d s of α metal-encased d iode can be identified by th e diode sy mbol marke d on its bo d y.

Se micon d uctor

Lea d

Configuratio ns

Figure 9-2 in th e "Diagrams" section shows the lea d co nfigurations for semiconducto r devices u sed in the instrument . These lea d config urations and case styles are ty p ical of those availa ble at completion of th e d esig n of the instrument . Vendo r c h a n ges and perform ance improvement changes may result in changes of case styles o r lead config urations . If t h e d evice in questio n d oes not appea r to match the co nfigu ration in Figure 9-2, examine the associated ci rcuitry or co nsult α semiconductor manufact urer's data sh eet.

Mu lti pin Connectors

M ultipin connecto r o rientatio n is indicated by two triangles : one on the holder and one on the ci rcuit boa rd. Slot numbers are u sually mol d ed into the h older . When α connection is mad e to circuit-board p i ns, ensure th at the triangle on the h ol d er a n d t he t ria n gle on the circuit boar d are aligned with each ot her (see Figu re 6-1) .

tia -''h1ι76 0,L ρ

(0995-11) 2662-50

Figure β-1 . Multi- connector h ol der orientation .

T ROUBLE SHOOTI NG E QU IPMEN T The equipment liste d in Table 4-1, o r equivale nt eq ui p meat, may b e u seful when troubles hooting this inst r u men t.

Mai nte n a n ce-2235 Service TR O UBLE S H OOTI N G

T E C HN IQ UE

The following p rocedure is a r ra nged i n an order that enables checking simp le trouble p ossibilities before req uiring more extensive troub les hooting . The first four checks ensure p ro per control settings, co nn ections, operation, and adjustment. If the trouble is not located by these ch ec ks, the remaining steps will aid in locati ng th e defective com ponent. Wh en t he defective com p onent is located , re place it, using the appropriate re placeme nt procedure give n un der "Corrective M aintenance" in t h is section . CA U TIO N

Before

using any test equipment to ma k e measuremen ts on static-sen sitive, current-sensitive, or voltage-sensitive components or assemblies, en sure that a ny voltage or curren t supp lied by the test equipmen t does n ot exceed the limits of the component to be tested.

1 . Chec k Co ntrol Settings I ncorrect control settings can give α false i nd icatio n of instrument malfunction. If there is any questio n a bout th e correct function or operatio n of any cont rol, refer to either the "Operating Instructio n s" (Section 2) in this ma nual or to the instrument Operators Manual .

WA RN I NG Da ngerous poten tials exist at several points throughout this instrument. If it is operated with the cabinet removed, do not touch exp osed conn ections or components.

4. Chec k Instrument

Perfo rma nce

and

Adjustme nt

C hec k t he p erformance of either of those circuits where trouble app ears to exist or the entire instrument . The apparent trou ble may only b e the result of misadjustment . Complete performance check a nd adjustment instructions are give n in Sectio ns 4 and 5 of this manual .

5. Isolate Trou ble to α Circuit To isolate problems to α particular area, use the trouble sym ptom to h elp identify the circuit in whic h the trouble is locate d. R efer to the troub les h ooting c h arts in th e "Diagrams" section as an aid in locating α fa u lty circ uit .

6. Ch ec k P ower S u pp lies WA RN I NG

2. Ch ec k Associate d Equipme nt

Before proceeding, ensure th at any equ ipme nt use d with

t h is instrument is operating co rrectly . Verify that input sig-

nals are p ro p erly co nnected a n d th at t h e inte rconnecting cables are not d efective . Ch ec k t h e power-i n put-sou r ce voltages . WA RN I NG To avoid electrical s h ock, disconnect the instrumen t from the power-input source before performing vis ual inspection.

3. V isual Chec k

Perfo rm α visual inspection. Th is c h eck may r eveal brok en connections or wires, d amaged components, semicon ductors not firmly mo un ted, damaged circuit boards, or other clues.

For safety reasons an isolation transformer must b e connected wh enever troubleshooting is done in th e Prereg ulator and the In verter Power Supply sections.

Chec k the p ower supplies whenever trouble symptoms appear in more th an one circuit. Th e correct output voltage and ripple for each su pply should be measured b etween t he su pp ly test point and chassis ground (see Ta ble 6-4 and associated circuit boa rd ill ustration). Voltages may be measured either by an DMM or an oscillosco pe, while the ri pp le measurements are accom p lished only with an oscilloscope . Before chec king p ower-supply circ uitry set t h e Α INTENSITY control to minimum b rightness and the Α S EC/DI V switch to Χ-Υ mode. Wh en measuring ripp le, use α 1 Χ p robe with α b ayonet signal tip attached to the probe ti p to mi nimize st ray pickup.

M ai n te n an ce-2235 Service I n sert t h e b ayo net sig n al ti p to t h e first test poi n t i n dicate d in Ta b le 6-4 a nd tou c h t he bayo n et ground tip to t he ch assis ground near t h e test point. The r ipple val u es listed in Table

6-4 are based on α system limited in band width to 30 kH z (greater bandwidt h will result in h ig her readings).

If power supply voltages and ri pple are within t he listed ra nges, the supply can be assumed to be operating correctly . If any are outside these ra nges, the supply may be either misa djusted or operating incorrectly. Use the " Power Supply, Display, and Ζ-Axis" sectio n i n t he "Adjustment" procedu re to adjust the -8 .6 V supply . Α defective component elsewhere in the instrument can create the appeara nce of α power-s upply p roblem and may also affect the operatio n of ot her circuits . Table 6-4 Power Supply L imits and Ripp le Power Supply

Test Point

-8 .6 V +5 .2 V +8 .6 V +30 V +100 V

ΤΡ961 W968 W960 W956 W954

7. Chec k Ci rcuit

Rea ding (Volts) -8 .56 to +5 .04 to +8 .43 to +29.1 to +97.0 to

-8 .64 +5 .36 +8 .77 +30.9 +103 .0

To avoid electric shock, always disconnect the instrument from the power input source b efore removing or replacing components . 9. Chec k Individual Components The following proce du res d escribe methods of chec king individual components . Two-lead components that are soldered in place are most accurately chec ked by fi rst d isconnecti ng one end from the circuit board. This isolates the meas urement from the effects of su rr oun di ng ci rcuitry . See Figure 9-1 for value identification or Fig ure 9-2 for typical semiconductor lead configuratio n. CA U TIO N

Ρ-Ρ R ipp le (m V) 1 .5 3.0 1 .5 20 .0 40 .0

B oa rd Interco nnections

After the trou ble h as b een isolated to α p articular circuit, again chec k for loose or broken co nnections and h eat-damaged components . 8. Check Voltages and Waveforms Often the d efective component can be located by chec king the appropriate voltage or waveform in the ci rcuit . Ty pi- . cal voltages are listed on the sc hematic diagrams. Waveforms are shown adjacent to the schematics, and waveform test points are indicated on bot h t he sc hematics and circuit board illustrations by h exagonal-outlined nu mbers. NOTE Voltages and waveforms given on th e sch ematic diagrams a re not absolute andmay vary slightly between ίnstruments . To establis h operating conditions similar to those used to obtain th ese readings, see the "Voltage and Waveform Setup" conditions in the "Diagrams" section for the preliminary equipment setup. Note the recommended test equipment, initial frontpanel control settings, and cable-connection instructions. The control-setting changes (from initial setup) required to obtain the given waveforms and voltages are located on the waveform-diagram page .

6-8

WA RN I N G

When checking semiconductors, observe the staticsensitive precautions locate d at the beginning of this section. TRANSISTORS. Α good c hec k of transistor operation is actual performa nce un de r o perating co nd itions. Α transistor can most effectively be chec ked b y substit uti ng α know n good component. However, be sure that circuit conditions are not such that α replacement transistor might also be d amaged . If substitute transistors are not available, u se α dynamic tester . Static-type testers are not recommended, since they d o n ot check operation under simulated operating conditions . Wh en trou bleshooting transistors in the circ uit with α voltmeter, measure both t he emitter-to-base and emitter-to collector voltages to determi ne whet her they are co nsistent with normal ci rcuit voltages . Voltages across α transistor may vary with t he ty pe of device and its circuit function . Some of these voltage are predictable. The emitte r-tobase voltage for α co nducting silicon transistor will no rmally range from 0.6 to 0.8 V . The emitter-to-collector voltage for α saturated transisto r is about 0.2 V . Because these values are small, the best way to c hec k them is by co nnecting α se nsitive voltmete r across t he junctio n rath er than comparing two voltages ta ken with respect to ground . If t he fo rme r meth od is used, bot h leads of the voltmeter must be isolated from ground . If values less th an these are obtained, either t h e device is shorted or no current is flowing in the extern al circuit. If val ues exceed the emitte r -to-base values given , either t he j unction is reverse b iased or the d evice is defective . Volt-

M ai ntena nce-2235 Service ages exceeding those given for typical emitter-to-collector values coul d indicate eith e r α n onsaturated device operating normally or α defective (o p en-circuited) transistor. If the device is conducti ng, voltage will be developed across the resistors in series with it ; if it is open, no voltage will be developed across the resistors in series with it, unless current is b eing sup plied b y α parallel path. CA υ τ 10 Ν Wh en checking emitter-to-base junctions, do not use an ohmmeter range that h as either α high internal current or voltage. Hίgh current or high voltage can damReverse biasing the age the transistor. emitter-to-base junction with α high current may degrade the transistor's current-transfer ratio (Beta). Α transistor emitte r-to-base j unction also ca n be checked for an open or shorted condition by measuring the resistance between terminals with an o hmmeter set to α range h aving α low internal source curren t, suc h as the R Χ 1 kΩ range. The junction resistance sh ould be very h ig h n one direction an d very low when the meter leads are reversed.

i

Wh en troub leshooting α field-effect transistor, the voltage across its elements can b e c hec ked in the same ma nner as previo usly descri bed for ot h er transistors . H owever, remember that in the normal d epletion mode of operatio n, the gate-to-so urce j unction is reverse biased ; in the en hanced mode, the j unction is forward b iased. INTEGRAT ED CI RCU ITS. An integrated circuit (IC) can

b e chec ked with α voltmeter, test oscilloscope, or by d irect sub stitution . Α good understanding of circuit operation is essential to troubleshooting α circuit having an IC . U se care when checking voltages and waveforms around the IC so that adjacent leads are not shorted together . The grabber ti p or an IC test cli p provides α convenie nt means of clipping α test probe to an IC . CΑ υ τ1ΟΝ When checking α diode, do not use an ohmmeter ra nge that has α high intern al current. High current can damage the diode. Checks on diodes can be performed in much the same ma nn er as on transistor emitter-to-base junctions ; use α dynamic tester, such as the TEK TRONIX 576 Curve Tracer.

DIOD ES. Α diode can be c h ecked for either an open or α horted co ndition by meas u ring the resistance betwee n ters mi nals with an ohmmeter set to α range h aving α low interηαΙ source c urrent, such as the R Χ 1 kΩ range. The d iode resistance sh ould b e very h ig h in one direction and very low when the meter leads are reversed. When condu cting, silicon d iodes should h ave 0.6 to 0.8 V across their ju nctions, and sc hottky diodes should have 0.2 to 0.4 V across their junctions . H ig her readings indicate t h at they are either reverse b iased or defective, d ependi ng on polarity . RE SISTO RS. Chec k resistors with an ohmmeter . Refer to the " R eplaceable Electrical parts" list for the tolerances of resistors used in this instrument . Α resistor normally d oes not require replacement unless its measured value varies widely from its specified value an d tolerance. I NDUCTORS. C heck for open inductors by c hec king continuity with an oh mmeter. Shorted or partially s horted ind uctors can u sually be fo un d by checking the waveform response whe n hig h-frequency signals are passed throug h the circuit. CA PACITORS. Α leaky or shorted capacito r can best be detected by c hec king resistance wit h an ohmmeter set to one of the h ig hest ranges . Do not exceed the voltage rating of the ca pacitor . The resistance reading should be h ig h after the ca pacitor is c harged to the output voltage of the ohmmeter. An open ca p acitor can be detected with α capacitance meter or b y checking whether the capacitor passes ac signals . 10 . Re p ai r an d Adju st the Circ uit If any defective p arts are locate d, follow the replacement rocedures given un der "Corrective Mai n tena nce" in this p section. After any electrical component h as b ee n re placed, the performance for that particular circuit should be checked, as well as the performa nce of ot h er closely related circuits . Since th e power supplies affect all circ uits, p erfo rmance of the entire instrument should be check e d if work has b een done in any of the power sup plies o r if the powe r transformer h as been rep laced. Readjustment of the affecte d circuitry may be n ecessary . Refer to th e " Performance Chec k Procedure" and "A dj ustment Procedure" (Sections 4 and 5) and to Table 5-1 (A dj ustment Inte ractio n s) .

M aintenance-2235 Service

CO RRE CTIVE M AI N T EN A N C E INTRODUCTION Corrective maintenance consists of component replacement and instrument repair . This part of the manual describes special techniques and procedures required to replace components in this instrument . If it is necessary to ship your instrument to α Tektronix Service Center for repair o r service, refer to the "Repackaging for S hipment" instructions at the end of this section.

MAI NT EN A NC E PRE CA UTIO NS To reduce the possibility of personal injury or instrument damage, observe the following precautions . 1 . Disconnect the instrument from the ac power i nput source b efore removing or i nstalling components . 2. U se care not to interconnect instrument grounds which may be at difference potentials (cross grounding) .

O BTAI N I NG REPL AC EMEN T PA RTS M ost electrical and mechanical parts can be obtained

through your local Tektronix F ield Office or representative . H owever, many of the standard electronic components can usually be obtained from α local commercial source. B efore p urchasing or ordering α p art from α source other than Tektronix, Inc., p lease check t he "Replaceable Electrical Parts" list (Section 7) for the proper value, rating, tolerance, and description . ΝΟΤΕ Physical size and shape of α component may affect instrument performance, particularly at high frequencies . use direct-replacement Always compon en ts, unless it is known that α substitute will not degrade instrument performance .

S pecial Parts In addition to the standard electronic components, some special parts are used in this instrument. These parts are manufactured or selected by Tektronix, Inc . to meet specific p erformance requirements, or are manufactured for Tektronix, Inc. in accordance with our specifications . The various manufacturers can be identified b y referring to the "Cross Index-Mfr Code N umber to M anufacturer" at the be-

ginning of the "Replaceable Electrical Parts" list . Most of the mechanical parts used in this instrument were manufactured by Tektronix, Inc. Order all special p arts directly from your local Tektronix F ield Office or representative .

Ordering P arts When ordering re placement parts from Tektronix, Inc .,

b e sure to include all of the following information : 1 . Instrument numbers) .

ty pe (include

modification

or

option

2. Instrument serial number . 3. Α description of the p art (if electrical, include its component number). 4. Tektronix part number .

MAI NT EN A NC E AIDS The maintenance aids listed in Table 6-5 include items required for performing most of the maintenance p rocedures on this instrument . Equivalent p roduct may be substituted for the examples given, provi ded their characteristics are similar.

IN

T ER CO NNE CTIO NS

Pin connectors are used to connect wires to the interconnecting p ins . They are grouped together and mounted in α plastic h older a nd should be removed, reinstalled, or replaced as α unit . If an individual wire or connector in the assembly is faulty, the entire cable assembly should b e replaced . To provide correct orientation of this multipin connector when it is reconnected to its mating p ins, an arrow is stam ped on the circuit board, and α matching arrow is molded into the p lastic housing of the multipin connector. Be sure these arrows are aligned with each other when the multipin connector is reinstalled . NOTE Th e

individual wires on the Fron t Panel & Filter circuit

boards to the Main circuit board may be replaced in di-

vidually. The pins from the Alternate SYNC Board may also b e replace d individually.

M ai ntena nce-2235 Service Table 6-5

M ainte nance Aids Desc ription

Specifications

I

Usage

1 . Soldering Iron

15 to 25 W .

2. Torx Screwdrivers

Torx ti ps #Τ7, #Τ9, #Τ10, #Τ 15 and #Τ20 .

3. Nutdrivers

1/4 in ch, 5/16 inch, 1/2 inch, Ι Assembly and disassem bly . and 9/16 in ch

4 . Open-end wrench

9/16 inch

I Assembly and disassembly.

5. Hex Wrenc hes

0 .050 inch and 1/16 inch.

I Assembly and d isassembly

General soldering and ~ unsoldering. Assembly and disassembly.

6. Long-nose Pliers

Component removal an d replacement.

7. Diagonal Cutters

Component removal and replacement.

8. Vacuum Solder Extractor 9.

L ubricant

E xample Antex Precision M odel C. Te ktronix Part N um bers (#Τ7) 003-1293-00 (# Τ9) 003-0965-00 (#T1 0) 003-0814-00 (#T1 5) 003-0966-00 (# Τ20) 003-0866-00 Xcelite #8, #10, #16, and #18 . Alle n Wrenc h es

No static charge retention

I U nsol dering componen ts .

P ace Model PC-10 .

No-Noise .

Ι Switch lubrication .

Tek tronix P art N um ber 006-0442-02.

10 . Pin-replaceme nt kit

Replace circuit board connector p ins.

Tek tronix Part N um ber 040-0542-00.

11 . Isolatio n Transformer

Isolate the instrument from the ac-power-source outlet .

Tek t ronix P art N um ber 006-5953-00.

12 . 1 Χ Pro be

Power supply ri pple check .

TEK TR ONIX Ρ6101 Probe (1 Χ). Part Nu mber 010-610103 .

13 . B ayonet Grou nd Assembly

Signal interconnection .

Te ktronix Part Nu mber 013-0085-00.

TR A N SISTO RS AN D I N T E GR ATE D CI R CU ITS Transistors and i ntegrated circuits should not be replace d unless they are actually defective. If unsoldered from the circuit board during routine maintenance, return t hem to their original board locations. Unnecessary replaceme nt or transposing of semico nductor devices may affect th e adju stme nt of the instrument . When α semico nductor is replaced, check the p erforma nce of any instru ment circuit t h at may be affected .

Any replacement components should be of th e original ty pe or α d irect replacement. B end transistor leads to fit their circuit board h oles and cut the leads to the same le ngt h as the original component. See Fig u re 9-2 fo r ty pical leadconfiguration illustrations . To remove α solde red du al-i n-line packaged (DI P) IC, d o not h eat adj acent conductors consecutively . Apply heat to pi ns at alte rnate sides and ends of the IC as solder is removed. Allow α mome nt for the circuit board to cool before proceedi ng to t h e next pin.

M ai n te nance-2235 Service 4. Insert the leads in to t he h oles of t h e board so th at th e replacement compo nent is positioned the same as the origi4 ηαΙ component. M ost com ponen ts should be firmly seated agai n st th e circuit board . 5. Touc h t he soldering iron to the connection and apply e nough solder to ma ke α firm solder joint. Do n ot move the component while the solder hardens .

To reinstall th e cabinet, perform the following steps: . Slide the chassis frame into the cabinet from the front

until the ca binet is fully into the front-panel groove and the rear of the cabinet is fl ush with the rear of the chassis. 5. Align th e rear-p anel and the side mounting h oles with screw h oles in the chassis frame and reinstall the three screws removed in ste p 2 .

t he

6 . Cut off any excess lead p rotruding thro ugh t he ci rcuit board (if not clipped to size in step 3) . 7. Clean the area around the solder co nnection with an approved flux-removing solvent. B e careful not to remove any of the pri nted information from the circuit board .

REM O VA L AN D REPLAC EMEN T I NST RU CTIO NS

The exploded view d rawi ngs in the "Replaceable M echanical Parts" list (Section 9) may be hel pful d uring the removal and reinstallation of ind ividu al su bassemblies or com ponents. Circuit board and component locations are s how n in the "Diagrams" sectio n. Cabi net WARNING To avoid electric shock, disconnect the instrument from the ac-power-input source before removing or replacing any component or assembly. To remove the instrume nt ca binet, perform the following steps : 1 . Disconnect the power cord from the instrument . For instruments with α power-cord securing clam p ; remove the Ph illips-head screw h oldi ng the powe r-cord securing clam p before disconnecting the power co rd . 2 . Remove the sc rew from the right-rear side of the ca binet and two screws from the rear panel. Then remove the rear panel . 3. Pull the front panel and attached chassis forward and out of the cabinet .

CA U TION To ensure that the cabinet is grounded to the instrument chassis, the screw at the right rear side of the cabinet must be tightly secured. 6. R econnect the power cord (rei nstall the securing clamp and screw removed in step 1 if app licable). Catho d e- Ray Tu be WA RN I NG

Use care when handling α crt. Breakage of the crt may cause high-velocity scattering of glass fragments (implosion). Protective clothing and safety glasses should be worn. Avoid striking the crt on any object which may cause it to crack or implode. Wh en storing α crt, either place it in α protective carton or set it face down on α smooth surface in α protected location with α soft mat under the faceplate . To remove the crt, p erform the following steps : 1 . Disconnect four deflection-plate wires at the mi dd le of the crt neck an d unp l ug t he Trace R otation connecto r ( Ρ9006) from the Front- Panel ci rcuit board (note the connec tion locations and wire colors for rei nstallation reference). W A RN I NG

The crt anode lead and the High- Voltage Multiplier output lead retain α high-voltage charge after the instrument is turned off. To avoid electrical shock, disconnect the High-Voltage Multiplier lead from the crt anode lead and ground both leads to th e main ίnstrument chassis.

M ai ntena nce-2235 Service 2. Unplug the crt anode lead connector from the H ig hVoltage M ulti plier lead located on left si de of Power-Supply shield and disc harge it to the chassis.

1 . Remove the screw from th e plastic power-s upply cover on t h e bottom section of the M ai n circuit board. Press gently on the rear of the cover and slide it forward .

3. Remove two front panel screws that retain the plastic crt frame and light filter to the front p anel . Remove the crt frame and light filter from the inst rument.

2. Remove th e screw securing the Power-Supply shield to the M ain circuit board (located at the bottom of the circuit board near the middle right side of the frame) .

4. Wit h the rear of the instrument facing you, place the 3. R emove two screws securi ng t he left rear of the Ροω fi ngers of bot h hand s over the front edge of the front er-Supp ly s h ield to th e bac k of th e chassis frame. s u bpanel . Then, using b ot h thum bs, press forward ge ntly on the crt funnel near the front of the crt. Wh en the crt base 4. R emove th e crt anode lead from the anode clip on the pins disengage from the socket, remove the crt and the crt shieldside throug h t he inst ru ment front su bpanel . Place the crt in of the Power-S upply shield . α safe place until it is ready to reinstall. If the plastic crt corner p ads fall out, save them for reinstallation . 5. R emove th e screw from the front up per right- hand corner of th e P ower-Supply shield. 5. R emove the crt socket cover and cap from the rear of the crt socket for reinstallation . 6. L ift the shield up and o ut of th e c hassis frame b y removing the right rear corner first. To reinstall th e crt, perform the following steps: 6. R einstall any plastic crt corner p ads that are out of place . Insert the crt, crt shield, anode lead, and Trace Rotation leads through the front- panel opening. M ake sure all pins are straig ht and that the indexing k eys on the crt b ase, socket, and s hield are aligne d. M ake sure that the ground clip ma kes contact only with the outside of the crt shield . 7. Pu sh the crt base into the socket . Verify that the crt base an d socket are flus h together as viewed from the rear and that the crt is seated properly in the front-panel opening . 8. R einstall the crt socket cap and cover to the rear of the crt socket (removed in step 5) .

To reinstall the Power-Sup ply shield, perform t he following steps: 7. Insert the shield into the chassis frame. M ake sure that the shield's right an d bac k e dges are in t hei r c h assis frame guides, that the crt socket-wire assemb ly is in its cutout, and that the Alt Sweep boa rd is in its p lastic h ol de r. 8. R einstall the screw at the upper right-hand corner of the shield (removed i n step 5) . 9. R einstall the crt anode lead into the a n ode clip on the si de of the Power-Supp ly shield (removed in step 4) .

9. Rei nstall the crt frame and light filter ; then secure

10 . Rei nstall two sc rews securing the sh ield to t he bac k of the chassis frame (removed in step 3) .

10 . R econnect the crt anode lead to the H ig h-Voltage Multi p lier (disco nnected in step 2) .

11 . Rei nstall the screw holdi ng the shield to the M ai n circuit board at the right side of the frame (removed i n step 2) .

i

them with two front panel screws (removed n step 3) .

11 . R econnect the four deflection-plate wires and t he Trace R otation connector (disconnected i n step 1) .

12 . R einstall the plastic power-supply cover on the bot tom of the M ain circ uit board and secu re bot h t he shield and the cover with one screw (removed i n step 1) .

P ower-S upply Shield

F ilte r Ci rcuit Board

To remove the Power-S upply shield , perform the following steps:

To remove the F ilter circuit board, perform the following steps.

6- 1 4

Mai ntena nce-2235 Service

Boa rd

1 . R emove the Power-Supp ly shield (see t he " PowerSupply S hield" removal procedu re).

Attenuato r Circ u it

2 . R emove the five wires to the Filte r circuit board by unsoldering two wires from the M ain circuit board, two from the li n e filter, and one wire from the fuse holde r (pull the protective cap completely off the fuse holder b efore un soldering) .

1 . Use α 1/16-i nch Hex-key wrench to loosen the set screws on both th e CH 1 and the CH 2 V OLTS/DIV Variable k nobs and remove th e kn obs.

3. R emove two screws securing the F ilter ci rcuit board to the bac k of the chassis frame. L ift the Filter ci rcuit board out of t h e instrument .

To remove t he Attenuator circuit board, perform the following steps:

2 . Set the CH 1 and the CH 2 VOLTS/DIV switch es to the same p osition . Note switch positions for reinstallation reference ; then remove the k nobs b y pulling them straight out from the front p anel .

b oard , p erform the following

3. Place t he instrument on its side and remove two screws securing the Attenuator board to the su bpa nel (located under neat h t he CH 1 an d C H 2 input connectors).

4 . R einstall two screws securing the Filter circ uit board to the b ac k of the chassis frame (removed in step 3) .

4. U nsol der t h e r esisto rs from the CH 1 and CH 2 input connectors .

5. Resol der the five wires from the Filter circ uit boa rd to the M ain circuit b oard, line filter, and fuse h older (unsol dered i n step 2) .

5. R emove the followi ng co nn ectors from the Attenuator circ uit board, noting their locations for reinstallation refere nce :

To reinstall the Filter circ uit steps.

6. R ei nstall the Power-Supply shield (see the " PowerSupply S h ield" reinstallation proced ure). Alt Swee p Circ uit

Board

To remove the Alt Sweep circ uit board, perform the following steps : 1 . Use α vacu um-desolderi ng tool to unsolder t he 27 p i ns (between th e Alt Sweep ci rcuit board and the M ain cir cuit board) from the M ain ci rcuit board. 2. Remove t h e Alt Sweep circuit board from the i n str ument by u nclipping it from the plastic holder attac hed to the Power-Sup p ly shield .

α. Ρ9103, α four-wire connector located be hind the CH 1 V OLTS/DI V switch assembly .

b. Ρ9108, α four-wire co nnector located be hind the CH 2 V OLTS/DIV switch assembly .

c. Ρ9091, α t hree-wi re connector located between the Channel 1 and Channel 2 V ariable p otentiometers at t h e rear of the Attenuator circuit board. 6. R emove four screws securing the Top shield to

t he Attenuator circuit b oard and the bottom shield .

both

7. R emove two screws and the ground strap from t he rear of the Attenuator circuit board .

3. Insert t h e 27 p ins of the Alt Sweep circuit board into t he M ain ci r cuit board .

8 . Pull t h e Attenu ator board straig ht back from the front of the i n strument until the circ uit board interconn ecting pins are disengaged an d the switch shafts are clear of bot h t he Front- Panel circuit board and the two AC-G N D-DC switc h s hafts (located between t he front- panel an d the subpanel .

4. R einstall the Alt Swee p circuit board into the p lastic holder attac hed to the Power-Supply shield .

To reinstall the Attenuator circuit board, perform the following steps :

5. R esol der the 27 pins to the M ain circuit board ( unsold ered in step 1) .

9. Insert the two V OLTS/DIV switch shafts and the ACGND-DC switch s h afts into the front panel h oles . Ens ure that the interconnecting p in s are aligned with t he Front-Pan-

To reinstall the Alt Sweep circ uit board, perform the following steps:

6- 1 5

M ainte n ance-2235 Service el circuit board connectors and that the two resistors (soldered to the bottom of the Attenuator circ uit board) do not touch t he Front-Panel ci rcuit boa rd. Pu sh t he Attenuator circuit board forward and, at the same time press th e fr o n t e n d of th e board down slig htly. Align the two AC-G N D-DC switch sh afts with t h e front-panel h oles by movi ng eit h er th e Channel 1 or the Chann el 2 AC-G ND-DC switch k nob. 10 . R einstall two screws and ground strap to the rear of t he Attenuator ci r cuit board (removed in step 7) . 11 . R eplace t h e top s h ield and reinstall the fo ur screws and ground stra p from t h e rear of the attenuator b oard to the top s h ield (removed in step 6) . 12 . R econn ect three conn ectors to the Attenuator circuit

boa rd disco nnected in step 5.

13 . Place the instrument on its si de and reinstall two sc rews to the subpanel (removed in step 4) . 14 . R esol der the resistors to th e CH 1 and CH 2 input conn ectors (disco nn ecte d n step 3) .

i

15 . R einstall the two V OLTS/DIV k nobs at the positio ns noted in step 2. 16 . R otate the two Varia ble cont rol shafts fully cloc kwise to thei r cali brated dete nt positions. 17 . R einstall the Variable kn obs onto thei r shafts (wit h lettering horizontal and right-side up) and tighte n the set screws . Timi ng Ci rcuit

Boa rd

To remove the Timi ng ci rcuit board, perform the following steps. 1 . Use α 1/16-inc h Hex-key wrench to loosen th e set screw of the S EC/DI V Variable k no b. 2. Lock t he Α and Β S EC/DI V kn obs together and note the position for reinstallation reference . Use α 1/4-inch nut driver to remove the n ut securi ng the Β SE C/DI V kn ob ; pull off th e k no b and collet from the shaft assembly .

3. Use α 1/16-inch Hex-key wrench to loosen two set screws securing the Α S EC/DI V dial to the shaft assembly . 4. R emove the following connectors from th e Timing ci r cuit board . α. Ρ9705, an eight-wire connector located at th e rea r of the Timi ng circuit b oard .

b. Ρ9700, α 10-wire connector located on th e righ t edge of the Timing circuit board.

5. R emove one screw at the rear of the Attenu ator cir cuit b oard (securing both the Atte nu ator and t he Timing circuit b oards to the Bottom shield). 6. R emove the remai ning three screws securing the Timing circuit board to the B ottom shield . 7. Pull the Timi ng circuit board straig h t bac k f rom the front of the instrument u ntil the ci rcuit b oard interconn ecting p ins are disengaged and the switch shaft is clear of t he Fro nt- Panel circuit board . To reinstall the Timing ci rcuit ing steps:

board , perform the follow-

8. Insert the SEC/DI V switch s haft thro ugh the h ole in Front- Panel circuit board, ensu ring that the inte ιco n ηecti ng pins are aligned with t he Front-Panel co nnectors. Push the Timing circ uit board forwar d nto positio n.

t he

i

9. R einstall three screws securing the Timi ng ci rcuit

b oard to the b ottom shield (removed in step 6) .

10. R ei n stall the remaining screw at t h e rear of the Attenuator circuit board securing b ot h t he Atte n uato r an d t he Timi ng circuit boards to the bottom sh ield (removed n step 5) .

i

11 . R econnect two co nnectors to the Timi ng ci rcuit

board ( d isconn ected in step 4) .

12 . R einstall the Α SE C/DI V dial in the positio n noted in step 3 and secu re it with two set screws . 13 . R einstall the collet and the Β SEC/DI V knob at th e position noted in ste p 2 an d secure it with the nu t.

M aintenance-2235 Service 14 . R ei nstall the SEC/DI V Variable knob o nto its shaft (with lettering h orizontal and right-si d e up) and tighte n the set screw.

reinstallation procedure and steps 11 through 14 of the "Timing Circ uit Board" reinstallation p rocedu re .

B ottom Shiel d , Atten uator a n d Timi ng Ci rcuitBoard M odu le

Fron t- Pan el Circ uit

R emoval of the module consisting of th e

B ottom shield

and the Attenuator and Timing circuit boar ds is accomplished b y the following steps: 1 . Perform ste p s 1 throug h 5 un der t he "Attenuator Circuit B oard" removal procedure .

2. Perform steps 1 throug h 4 unde r t he "Timing Circ uit B oard" removal .

Board

1 . R emove th e crt (see the "Cat hode- Ray Tube" removal

p rocedu re).

2. R emove the B ottom shield, Atte nuator, and Timing circuit- board module (see the preceding removal p rocedure) . 3. R emove the k nobs from the following control shafts b y p ulling them straig ht out from the front panel : α. Ch annel 1 and Channel 2 POSITIO N,

3. Place the instrument on its side and remove fo ur screws h olding the B ottom shield to the Main circ uit boa rd.

b . Α/Β SWP SEP,

4 . Pull the B ottom shield, along with t he Attenuator and Timing circuit b oards straig ht back from the front of the instrument until the interconnecting pin s on bot h circuit boards are disengaged and the switc h shafts are clear of the holes in the F ro nt- Panel circ uit board ; then lift out the entire assembly thro ugh t he top of the instrument .

d . Α TR IGG ER LEVEL,

5. If accessibility to the bottom of eith er the Attenuator or the Timing circuit board is d esired refer to steps 6 and 7 of the "Atten uator Circuit Board" removal procedure and to steps 5 and 6 of the "Timing Circ uit Board" r emoval proced ure . To reinstall the Bottom shield-Attenuator-Timing assembly, perform the following steps: 6. If one or both of t he circuit boards was removed, reinstall the ci rcuit boar d(s) to the Bottom sh ield b y refe rring to steps 10 and 11 of the "Attenu ator Circuit B oard" reinstallation procedure and to steps 9 and 10 of the "Timing Circuit B oard" reinstallation procedure . 7. Insert the three switch s hafts thro ugh t he h oles in both t he F ro nt- Panel ci rcuit board and the front p anel (refer to the "Atten uator Circuit B oard " and the "Timing Circuit Board" reinstallation proce du res) . 8. R einstall the four screws holding the B ottom shield to the M ain circuit board (removed in step 3) . 9. Complete reinstallation of the module by p erfo rming steps 12 thro ugh 17 of the "Attenu ator Circuit B oard"

c. Horizontal POSITIO N ,

e. Β TR IGG ER LEVEL. 4. U nsolder both the resistor to the ΕΧΤ INPUT cente r connector and the wire strap to the ΕΧΤ I NPUT ground l ug. 5. Unsolder th e single wi re from the PROBE ADJU ST connector an d the two wi res from the VAR HOLDO FF control (leading to the F ro nt- Panel circuit boar d). 6. R emove the following screws : α. Th ree screws securing the upper p art of the FrontPanel circuit board to the front p anel .

b. Two recessed frame-securing screws at the left-rear corner of th e chassis frame.

c. Two screws holding the Main circuit board to the ch assis frame . d . One screw securi ng t h e delay line to the chassis frame on the left side of th e instrume nt. e. Two recessed frame-securi ng screws at the right front corner .

7. Pull the front-left frame assembly apart from the rea rright frame assembly .

M ai nte nance-2235 Service NOTE At this point, any component on the Front- Panel circuit board may be accessed for removal and replacement. Skip to step 11 of this procedure after component replacement. If circuit board replacement is Intended, continue with the remaining disassembly steps. 8. Use α vacuum-d esoldering tool to unsolder t he 39 wire straps from the M ain circuit boar d (connecting to the Front- Panel circuit board). 9. Remove the F ront-P anel circuit board from the instrument and clean the wire-strap holes on the Main circuit boa rd of any remaining solder . NOTE If α vacuum-desoldering tool is not availa ble, lift each strap out of the Main circuit board as the joint is heated. To reinstall the Front- Panel circ uit board, perform the following steps: 10 . Insert an d resolder the 39 wire stra ps on the FrontPanel circuit board into their correspo nd ing holes in the M ai n circuit board (unsol dered in step 8) . 11 . Align the two chassis frame assemblies d isassembled in step 7, making sure the POWER switch extensionshaft button is properly placed in the front pa nel . 12 . R einstall four chassis-frame securing sc rews, two screws securing t h e M ain ci rcuit board to the ch assis frame, and one screw securing t he delay li ne to the chassis frame (removed in step 6, p arts b t hroug h e). 13 . Push th e Fro nt- Panel circ uit b oard forwar d and insert the co ntrol sh afts, p us h buttons, and three- position slide switches i nto their correspo nd ing front-panel h oles . 14 . Reinstall th ree screws securing the Front- Panel circuit board to the fron t- panel (removed in step 6, p art α). 15 . R esolder th e single wire to the PR OBE ADJU ST connector an d the two wires to the VAR HOL DO FF co ntrol (unsoldered in step 5) .

6-18

16 . R esolder the resistor to the ΕΧΤ INPUT center connector and the wire stra p to t h e ΕΧΤ I NPUT ground lug (unsoldered in step 4) . 17 . R eplace the front-panel kn obs (removed in step 3) . 18 . R einstall the Bottom shield, Attenuator, and Timing circuit- board module (see th e p receding reinstallation procedure). 19 . Reinstall the crt (see the "Cat hode- Ray Tube" reinstallation proce dure) .

Main Ci rcuit B oa rd All components on the Main ci rcuit board are accessible either directly or by removing either the crt, th e B ottom shiel d, Attenuator, Timi ng circuit-board module, or the Ροωer-Supply shield. Removal of the M ain ci rcuit board is req uired only when it is necessary to re place the board with α n ew one. To remove the Main circuit board, perform the following steps : 1 . Disconnect t he three-wire Β D ELAY TIME POSITION potentiometer con nector (Ρ4644) from the Main circ uit b oard (located in fron t of the Power-Supply shield). 2. R emove th e Alt Sweep circ uit boar d (see "Alt Sweep Circuit Board" removal p rocedure) . 3. R emove the Power-Sup p ly shield and p lastic powersupply cover (see " P ower-Supply Shield" removal proced ure) . 4 . Unsolder five wires from th e F ilter circuit board (leading to the M ain circuit board). 5. R emove connectors from th e Attenuator and Timi ng circ uit boards, noting their locatio n s for rei nstallation reference. 6. R emove the FOC US control s haft assembly b y pulling it straig ht out from the front panel.

REV ΜΑΥ 1983

M ainte nance-2235 Service 7. Remove the POWER switch extension-s haft assem-

bly by first pressing in the POWER button to the ON posi-

tion . Then insert α scribe (or similar tool) into the notch between the end of the switch s haft and t he end of the exte nsion shaft and ge ntly pry the co nn ection apart. Pu sh the extensio n s haft fo rward, then si deways, to clear the switch s haft. F inally, pull the extension shaft bac k and out of the instrument .

16 . Use α vacuum-desoldering tool to un solder the 39 wire straps (connecting the M ain circuit boa rd to the Front Panel circuit board) from the M ai n circuit board. NOTE if α vacuum-desolderίng too/ is not available, lift each wire strap out of the Main circuit board as the joint is heated. Use care to maintain, as nearly as possible, the original shape and spacing of the wire straps to facilitate rep/acing the circuit board.

8. Disconn ect Ρ9001 and Ρ9002 from the rear of the

M ai n circuit board near the fuse h ol der.

9. Unsol der the rear-panel ΕΧΤ Ζ AXIS connector wire from the M ain ci rcuit board. 10 . R emove two screws securi ng the power-s upply transistor h eat-sink assembly (at the right side of the chassis frame. WA RN IN G The crt anode lead and the output terminal to the High-Voltage Multiplier will retain a high-voltage charge after the instrument is turned off To avoid electrical shock, ground the crt side of the anode lead to the main instrument chassis. 11 . Disconnect the crt anode lead from the H igh-Voltage M ultiplier anode lead by ca refully pulling the anode pl ug out of the jac k. Disc harge the plug tip to the chassis. 12 . U nsol der two sets of crt socket wires from the M ai n circuit board, 22 noting wire color and position for reinstallatio n reference .

17 . Push the wire-strap co nnection e nd of the M ai n circuit b oard down u ntil it is clear of all wire stra p ends ; then remove it throug h the bottom of the instrument frame. Ensure that the wire straps are n ot b ent out of p lace. To replace the M ain circ uit board, u se the following

p rocedure :

18 . Place the M ain ci rcuit board i nto the chassis frame, ensuring that the boa rd is in t he guid es at th e rear a n d right side of the frame and that the 39 wire straps are inserted nto their corres ponding h oles .

i

19 . Reinstall three screws securing the M ain ci rcuit board to the chassis frame (removed in ste p 15). 20 . Resol der 39 wire straps to the M ai n circ uit board. 21 . Reinstall three screws h olding the bottom shield to the M ai n circ uit boa rd (removed n step 14).

i

. Resolde r two sets of delay-line wires at the locations noted in step 13 .

13 . U nsolder 23 two sets of d elay-line wires from the M ai n . Resol der two sets of crt socket wires at the loca circ tions uit board, noting wire color and positio n for reinstallation n oted in step 12 . reference . 14 : R emove three screws securing the B ottom shield to the M ain circuit board . 15 . R emove three screws securing the M ain circuit b oard to the instrument chassis frame (one unde r the ΕΧΤ Ζ AXIS connector and two along the left side of the M ain circuit board) .

24 . Reconn ect the crt anode lead to the H igh-Voltage

M ultiplier anode lead (disco nn ect in step 11).

25 . Reinstall two securing screws in the power-supply transistor heat sink assembly (removed in step 10). 26 . Insert and resolder the ΕΧΤ Ζ AXIS connector wire into the M ain circuit board (removed in step 9) .

Mai n tena n ce-2235 Service 27 . Reconnect Ρ 9001 and Ρ9002 to t he M ain ci rcuit board (remove d in step 8) .

t h at can be contacted . Include complete instr u me n t serial n u mber a nd α descri p tion of t he service requi re d .

28 . Inse r t t h e POWER switch exte n sion -s h aft assembly Save and reu se t he p ack age i n wh ich you r in st rument into t he front was panel (from t he rea r ). Pu s h th e POWER switch s h ipped. If t h e origi nal pac k agi ng is u nfit for use or not available,re to t h e ON loc k positio n and align t h e exte nsion s h aft with pac kage th e instrument as follows: t h e switch s haft. Press th em toget h er gently un til they sn a p Surround th e instrument wit h polyethyle ne sh eeti ng to prointo place . tect its fin is h . Obtain α carton of corrugate d cardboard h aving α carton test strengt h of 275 pounds and h aving inside dimensions of no less t han six i n ch es more th an t h e instru29 . R einstall t he FOC U S control shaft assembly (rement dimensions . Cus h ion t he i n str ume nt by tig h tly pac k ing in moved step 6) . t h ree i n ch es of dunnage or uret h a n e foam between carton a nd in stru men t, on all si d es . Seal carton wit h sh ipping tape o r i n dustrial sta p ler. 30 . R eco nnect t h e co nnectors to t h e Attenuato r and Timing circuit boards (removed in ste p 5) . 31 . R esolder five wires from the Filte r ci rcu it board to t h e Main circuit board (unsoldered in ste p 4) . 32 . R einstall th e Power-Supply s h ield a nd plastic powers upp ly cover (see " Power-Sup p ly Sh iel d " reinstallation procedure). 33 . R ei n stall t he Alt Swee p circuit b oa rd (see "Alt Sweep Circuit B oard" rei n stallatio n p rocedure). 34 . R econnect t he Β DEL AY TIME POSITIO N potentiometer connector (Ρ9644) to t h e M ai n ci rc u it b oard (disconnected in step 1) .

REPAC K AGI NG F O R S H I PMENT If t h e instrume nt is to be s h i p ped to α Te kt ro n ix Service Center for se rvice or r e p air, attac h α tag s howing; owner (wit h add ress) and the name of an i n dividual at your firm

S ELECTA BLE CO MP O NENTS

If desired, th e trigger-system bandwidt h of th e oscilloscope may be reduce d from th e normal 20 MH z to freq uencies s hown i n Ta b le 6-6. To alter th e b a ndwidt h , remove C419 (compo n e n t nu mber Al C419 on Diagram 3) f r om t he M ain Circuit Board using t h e steps i n t h e "Sol d eri n g Tec h ni q ues" part of t he " M aintenance" section . T h e ca p acitor s hould be α non-polarized ty p e such as α d isc-ceramic or equivalent . Tab le 6-6

Trigge r B a nd wi dt h Alte ration Trigge r Ban d width

Ca pacito r Val u e

20 MH z

180 pF

10 MHz

390 p F

5 MHz

750 pF

1 MHz

3300 pF

50 kH z

0.068 AF

10 kH z

0 .33 μ F

Section 7-2235 Service

OPTIONS There are currently no options for the 2235, except the optional power cords previously described in Section 2 .

Section 8-2235 Service

REPL AC EA BL E E LE CT R ICA L PA R TS PA R TS O RD ER I NG I NFO RM ATIO N

R eplacement parts are available from or through your local Tektronix, Inc. Field Office or representative . Changes to Tektronix instruments are sometimes made to accommodate improved components as they become available, and to give you the benefit of the latest circuit improvements developed i n our engineering d epartment. It is therefore important, when ordering p arts, to include the following information i n your order: P art number, instrument type or number, serial number, and modification number if applicable .

If α p art you have ordered has been replaced with α n ew or improved part, your local Tektronix, Inc. F ield Officeor representative will contact you concerning any change in part number . Change information, if any, is located at the rear of this manual .

L IST O F ASS EMBL I E S

n umber is obtained by adding the assembly number prefix to the circuit number . The Electrical P arts L ist is d ivided and arranged by assemblies in numerical sequence (e .g ., assembly Α 1 with its subassemblies and parts, precedes assembly Α2 with its subassemblies and parts) .

Chassis-mounted parts h ave no assembly number prefix and are located at the end of the E lectrical P arts L ist .

P A R T NO. (column two of t h e E lectrical Parts L ist)

TEK T R O N IX

Α list of assemblies can be found at the beginning of the The assemblies are listed i n numerical order. When the complete component number of α part isknown, this list will identify the assembly in which t he p art is located.

E lectrical P arts L ist.

C R OSS I N D E X- MFR. COD E NU M BER TO M ANUFACT URER The M fr . Code Number to M anufacturer i ndex for t he is located immediately after t his p age. The Cross Index provides codes, n ames and addresses of manufac-

E lectrical Parts L ist

turers of components listed i n t he

Only the circuit number will appear on the diagrams and circuit board illustrations. Each diagram and circuit board illustration is clearly marked with t he assembly number . Assembly numbers are also marked on the mechanical exploded views located i n the M echanical Parts L ist . The component

E lectrical P arts L ist.

Indicates part number to be u sed w hen ordering r eplace ment part from Tektronix.

S ER IA L / M OD EL NO. (colum n s t h ree and four of t h e E lectrical P arts List) Column t hree (3) indicates the serial number at which the

part was first used. Column four (4) indicates the serial numberat which t he p art was r emoved . No serial n umber e ntered i ndicates part is good for all serial numbers.

A BBREV IATIO N S A bbreviations conform to American National Standard Y1 . 1 .

CO MP O NENT NUMBER (colum n on e of t h e E lect rical P a r ts List) Α numbering method h as b een used to identify assemblies, subassemblies and parts. E xamples of this numbering method a nd typical expansions are illustrated by the following:

E xample

α.

component number

A23R1234

Α23

Name may sometimes appear as incomplete. F or f urther Item Name identification, the U.S . Federal Cataloging H andbook Η 6-1 can be u tilized where possible.

Li st)

Circwt number

E xample b.

E lect r ical P arts

Indicates the code number of the actual manufacturer of the

R ead: R esistor 1234 of Assembly 23

part. (Code to n ame and a ddress cross r eference can be found immediately after this p age.)

component number

Α23 Α2R1234 Asse mb ly numb er

R ea d: R esistor

In the Parts L ist, an Item Name is separated f rom t he d escription by α colon (:) . B ecause of space limitations, an Item

MFR. COD E (colum n six of t h e

R1234

Assembly number

NAME & D ESC RI PTIO N (column five of t h e E lectrical Parts List)

Α23 1777

1234 of

Α2

R 1234

S ub assembly numb e r

Ci r cuit nu m ber

Subasse mb ly 2 of Assembly 23

MFR. I

P A R T NUMBER (colum n seve n E lect r ical Pa rts List)

nd icates actual

m a nu fact ur e r s part numb er.

of t h e

R eplaceable E lectrical P arts-2235

Service

C ROSS INDEX-MFR. CODE NUMBER TO M ANUFACTURER M fr . Code

M anufacturer

Address

City, State, Zip

OOOFG

RIFA WORLD PRODUCTS INC.

7625 BUSH LAKE RD Ρ.Ο. BOX 35263

M INNEAPOLIS, MN 55435

OOOFG

RIFA WORLD PRODUCTS INC.

7625 BUSH LAKE RD Ρ. Ο. BOX 35263

M INNEAPOLIS, MN 55435

OOOFG

RIFA WORLD PRODUCTS INC.

OOOLI 00853 01121 01281

TOPTRON CORP SANGAMO ELECTRIC CO ., S. CAROLINA DIV. ALLEN-BRADLEY COMPANY TRW ELECTRONIC COMPONENTS, SEMICONDUCTOR OPERATIONS TEXAS INSTRUMENTS, INC., SEMICONDUCTOR GROUP COILCRAFT INC. FERROXCUBE CORPORATION RCA CORPORATION, SOLID STATE DIVISION GENERAL ELECTRIC COMPANY, SEMI-CONDUCTOR PRODUCTS DEPARTMENT AVX CERAMICS, DIVISION OF AVX CORP . M OTOROLA, INC ., SEMICONDUCTOR PROD . DIV. CORCOM I NC . FAIRCHILD SEMICONDUCTOR, Α DIV. OF FAIRCHILD CAMERA AND INSTRUMENT CORP . M AGNETICS DIV OF SPANG INDST. INC. CLAROSTAT MFG. CO ., INC. UNITRODE CORPORATION AMPHENOL CARDRE DIV., BUNKER RAMO CORP. ΙΤΤ SEMICONDUCTORS

7625 BUSH LAKE RD Ρ. Ο. BOX 35263

01295 02113 02114 02735 03508 04222 04713 05245 07263 08057 12697 12969 13511 14433 14552 14752 15238 15454 18324 19396 20462 20932 22229 22526 24546 26769 27014 31918 32997 50157 50434 51642 51984 53184 54473 54937 55680 56289 57668 59660 71279 71400 71590

8- 2

M ICRO SEMICONDUCTOR CORP .

ELECTRO CUBE I NC . ΙΤΤ SEMICONDUCTORS, Α DIVISION OF INTER NATIONAL TELEPHONE A ND TELEGRAPH CORP. RODAN I NDUSTRIES, INC. SIGNETICS CORP . ILLINOIS TOOL WORKS, INC. PAKTRON DIV. PREM ENTERPRISES, INC. EMCON DIV OF I LLINOIS TOOL WORKS INC. SOLITRON DEVICES, INC., SEMICONDUCTOR GROUP BERG ELECTRONICS, INC. CORNING GLASS WORKS, ELECTRONIC COMPONENTS DIVISION NCI INC. NATIONAL SEMICONDUCTOR CORP . ΙΕΕ/SCHADOW I NC . B OURNS, INC., TRIMPOT PRODUCTS DIV. MIDWEST COMPONENTS INC. HEWLETT-PACKARD COMPANY CENTRE ENGINEERING INC . NEC AMERICA INC. RADIO AND TRANSMISSION DIV. XCITON CORPORATION M ATSUSHITA ELECTRIC, CORP . OF AMERICA DEYOUNG MFG., INC. NICHICON/AMERICA/CORP. SPRAGUE ELECTRIC CO . R-OHM CORP . TUSONIX INC. CAMBRIDGE THERMIONIC CORP. BUSSMAN MFG., DIVISION OF MCGRAWEDISON CO . CENTRALAB ELECTRONICS, DIV. OF GLOBE-UNION, INC.

Ρ Ο BOX 128 1201 2ND STREET SOUTH 14520 AVIATION BLVD .

M INNEAPOLIS, MN 55435 TOKYO, JAPAN PICKENS, SC 29671 MILWAUKEE, W I 53204 LAWNDALE, CA 90260

Ρ Ο BOX 5012, 13500 Ν CENTRAL EXPRESSWAY 1102 SILVER LAKE RD . PO BOX 359, M ARION ROAD ROUTE 202

DALLAS, TX 75222 CARY, IL 60013 SAUGERTIES, NY 12477 SOMERVILLE, NY 08876

ELECTRONICS PARK Ρ Ο BOX 867, 19TH AVE. SOUTH 5005 Ε M CDOWELL RD,PO BOX 20923 2635 Ν KILDARE AVENUE

SYRACUSE, NY 13201 MYRTLE BEACH, SC 29577 PHOENIX, AZ 85036 CHICAGO, IL 60639

464 ELLIS STREET 230 ADRIAN RD . LOWER WASHINGTON STREET 580 PLEASANT STREET

MOUNTAIN VIEW, CA 94042 MILLBRAE, CA 94030 DOVER, NH 03820 WATERTOWN, MA 02172 L OS GATOS, CA 95030

3301 ELECTRONICS WAY Ρ Ο BOX 3049 2830 Ε FAIRVIEW ST . 1710 S. DEL MAR AVE .

WEST PALM BEACH, FL 33402 SANTA ANA, CA 92704 SAN GABRIEL, CA 91776

Ρ. Ο. BOX 168,500 BROADWAY 2905 BLUE STAR ST . 811 Ε. A RQUES 900 FOLLIN LANE, SE 3519 Ν. CHAPEL HILL 11620 SORRENTO VALLEY RD Ρ Ο BOX 81542

LAWRENCE, MA 01841 ANAHEIM, CA 92806 SUNNYVALE, CA 94086 VIENNA, VA 22180 MCHENRY, IL 60050

8808 B ALBOA AVENUE YOUK EXPRESSWAY

SAN DIEGO OPERS, CA 92123 NEW CUMBERLAND, PA 17070

550 HIGH STREET 5900 AUSTRALIAN AVENUE 2900 SEMICONDUCTOR DR . 8081 WALLACE ROAD 1200 COLUMBIA AVE . Ρ. Ο. BOX 787 1981 PORT CITY BLVD . 640 PAGE MILL ROAD 2820 Ε COLLEGE AVENUE

BRADFORD, PA 16701 WEST PALM BEACH, FL 33407 SANTA CLARA, CA 95051 EDEN PRAIRIE, MN 55343 RIVERSIDE, CA 92507

2990 TELESTAR CT . SUITE 212 5 HEMLOCK STREET 1 PANASONIC WAY PO BOX 1806, 1517 130TH AVE. 6435 Ν PROESEL AVENUE 87 M ARSHALL ST . 16931 MILLIKEN AVE. 2155 Ν FORBES BLVD 445 CONCORD AVE.

FALLS CHURCH, VA 22042

2536 W . UNIVERSITY ST .

ST . LOUIS, MO 63107

Ρ Ο BOX 858

FORT DODGE, IA 50501

SAN DIEGO, CA 92121

MUSKEGON, MI 49443 PALO ALTO, CA 94304 STATE COLLEGE, PA 16801 LΑΤΗΑΜ , NY 12110 SECAUCUS, NJ 07094 BELLEVUE, WA 98009 CHICAGO, IL 60645 NORTH ADAMS, MA 01247 IRVINE, CA 92713 TUCSON, AZ 85705 CAMBRIDGE, MA 02138

REV ΜΑΥ 1983

R eplaceable E lect rical P arts-2235

CROSS I NDEX- MFR . CODE NUMBER TO

Mfr .

Ad Co de Man ufact urer

dress

Service

M ANUFACTURER City, State, Zi p

644 W. 12TH ST . ER I E, PA 16512 72982 ER I E TECHN OLOGICAL PROD UCTS, I NC. 2500 HARB OR BLVD. TO N, CA 92634 73138 FULLER BE CKM AN I NSTRUMENTS, I NC., HELI P OT DIV. PI NETREE ROAD OX FORD, N C 27565 73899 JF D ELECT RON ICS CO MP ONENTS CORP . 75042 TRW ELECTRONIC CO MPONEN TS, I RC FIX ED 401 Ν. BROAD ST . PH I LAD ELPH IA, PA 19108 RESISTORS, PH ILAD ELPH IA DI VISIO N 77820 BENDIX CO RP., THE, ELECT RICAL SHERM AN AVE . SIDNEY, NY 13838 CO MP ONENTS DI VISIO N Ρ Ο BOX 500 BE AVER TO N, OR 97077 80009 TEKTRONIX, I NC. 22 CO LUMBIA ROAD MORR ISTOWN , NJ 07960 80031 ELECTRA- MID LAND CO RP ., MEPCO DI V. 5555 Ν . ELSTON AVE . CHICAGO, I L 60630 82389 SWITCHCRAFT, I NC. 3029 Ε. WAS HI NGTON ST REET 90201 MALL ORY CAPACITOR CO ., DI V. OF Ρ. Ο. BOX 372 I N DIANAPOLIS, IN 46206 Ρ. R. M ALLORY AND CO ., INC. Ρ. Ο. BOX 609 CO LUMBUS, NE 68601 91637 DA LE ELECT RONICS, I NC. CODE 96 733 NOT FOUN D Ρ. Ο. BOX 609 CO LUMBU S, NE 68601 91637 DA LE ELECT RONICS, I NC.

REV ΜΑΥ 1983

8- 3

R eplaceable E lectrical P arts-2235

Service

Tektronix Serial/ Model No . Component No . Part No . E ff Dsco nt N ame & Descri ption Code Α1 Α Α2 Α3 Α4 Α5 Α6 Α1

670-7614-00 CKT B OA RD ASSY : MAI N 80009 672-1064-00 CKT B OA RD ASSY :ATT ENUATO R/TIMING,W/S HI EL D 670-7561-00 CKT BOA RD ASSY :ATT ENU ATOR 80009 670-7611-00 CKT BOA RD ASSY : FR ONT PA NEL 670-7613-00 CKT BOA RD ASSY :TIMI N G 670-7612-00 C KT BOA RD ASSY :ALTERNAT E SWEEP 670-7615-00

CKT BOA RD ASSY : EM I FI LT ER BD

Mfr

Mfr P art

Nu mber

80009 80009 80009

670-7614-00 672-1064-00 670-7561-00 670-7611-00 670-7613-00 670-7612-00

80009

670-7615-00

80009

670-7614-00 CKT B OARD ASSYMAIN 80009

670-7614-00

AIC114 AlC115

281-0767-00 281-0767-00

CA P., FXD,C ER DI :330 PF,20%,100V CA P., FXD,C ER DI :330 PF,20%,100V

12969 12969

CG Β331 ΜΕΧ CG B331 MEX

AIC116 λ 1C125 AlC126 AlC130 AlC133 A1C164

281-0862-00 281-0772-00 283-0114-00 283-0159-00 281-0785-00 281-0767-00

CAP., FXD,C ER CA P., FXD,CER CA P., FXD,CER CA P., FXD,CER CA P., FXD,CER CA P., FXD,CER

DI :0 .001 U F,+80-20%,100V DI :0 .0047UF,10%,100 V DI :0 .0015 UF,5%,200V DI :18PF ,5%,50 V DI :68PF ,10%,100V DI :330 PF ,20%,100V

20932 04222 59660 51642 72982 12969

401- ES-100AD102Z GC701C472K 805534Y5DO152J Τ150-050ΝΡ0180J 8035D2AADCOG680K CG B331ME X

AlC165 AlC175 AlC176 AIC180 A1C198 Α1 C200

281-0767-00 281-0772-00 283-0114-00 281-0140-00 281-0862-00 290-0136-00

CA P., FXD,C ER DI :330 PF ,20%,100V CA P., FXD,C ER DI :0 .0047 UF ,10%,100V CA P., FXD,C ER DI :0 .0015UF ,5%,200V CA P., VAR,C ER DI :5-25PF ,100V CA P., FXD,C ER DI :0 .001 UF ,+80-20%,100V CA P., FXD,ELCT LT:2 .2UF ,20%,20V

12969 04222 59660 59660 20932 56289

CGΒ331 ΜΕΧ GC701C472K 805534Y5DO152 J 518-023Α 5-25 401- ES-100AD102Z 162D225XO020CD2

Α1C201 AlC210 AlC215 AlC220 AlC225 AlC226

290-0136-00 281-0500-00 281-0862-00 281-0772-00 281-0862-00 281-0862-00

CAP., FXD,ELCTLT .2.2 UF,20%,20V CAP ., FXD,C ER DI :2 .2PF, +/-O.5 PF ,500V CAP., F XD,C ER DI :0 .001 UF ,±80-20%,t00V CAP., FXD,C ER DI :0 .0047UF,10%,100 V CAP., F XD,C ER DI :O.OOI UF,+80-20%,100 V CAP ., FXD,C ER DI :0.001 UF,+80-20%,100 V

56289 04222 20932 04222 20932 20932

162D225XO020CD2 7001-COJ-2 R2D 401- ES-100AD102Z GC701C472K 401-ES-100AD102Z 401-ES-100AD102Z

A lC228 AlC229 AlC237 AlC239 Al C240 AlC241

283-0665-00 CA P., FXD,MICA D:190 PF,1%,100V 00853 283-0665-00 CA P., FXD,MICA D:190PF,1%,100 V 00853 281-0140-00 CA P., VAR,C ER DI :5-25PF ,100V 59660 281-0776-00 CA P., FXD,C ER DI :120 PF ,5%,100V 04222 281-0511-00 CA P., FXD,C ER DI :22PF,+/-2 .2 PF,500 V 59660 281-0777-00 CA P., FXD,C ER DI :51 PF ,5%,100V 04222

D155 F191 F0 D155 F191 FO 518-023Α 5-25 SR211A121 JAA 301-000COG0220K SR211A510JAA

A1C242 AlC250 AlC251 AlC255 AlC262 AlC274

281-0812-00 CA P., FXD,C ER DI :1000PF,10%,100 V 72982 281-0768-00 CA P., FXD,C ER DI :470PF,20%,100 V 72982 281-0768-00 CA P., FXD,C ER DI :470PF,20%,100 V 72982 281-0862-00 CA P., FXD,C ER DI :0 .001 UF ,+80-20%,100 V 20932 281-0862-00 CAP., FXD,C ER DI :0 .001 UF,+80-20%,100 V 20932 281-0773-00 CAP., FXD,C ER DI :0 .01 UF,10%,100 V 04222

8035D9AADX7R102K 8035D9AADW5R471M 8035D9AADW5R471 M 401- ES-100AD102Z 401-ES-100ΑΟ 102Ζ SA201C103KAA

AlC281 A lC292 A lC312 A lC337 A lC363 A lC369

281-0775-00 CA P., FXD,CER DI :O.1 UF,20%,50V 04222 290-0776-00 CA P., FXD, ELCT LT:22UF ,+50-10%,10V 55680 281-0893-00 CA P., FXD,C ER DI :4 .7 PF ,+/-O.5 PF ,100 V 04222 281-0893-00 CA P., FXD,C ER DI :4 .7 PF ,+/-0.5 PF,100 V 04222 281-0862-00 CA P., FXD,C ER DI :0 .001 UF ,+80-20%,100V 20932 281-0862-00 CA P., FXD,C ER DI :0 .001 UF ,+80-20%,100V 20932

ΜΑ205Ε104ΜΑΑ ULA1A220T EA M A101A4R7DAA MA101A4R7DAA 401- ES-100AD102Z 401- ES-100AD102Z

Α1C381 A lC389 A lC390 AlC392 AlC396 A lC397

283-0663-00 CA P., FXD,MICA D:16.8 PF ,+/-O.5 PF,500 V 00853 281-0773-00 CA P.,FXD,CER D1 :0 .01 UF ,10%,100V 04222 281-0862-00 CA P., FXD,C ER DI :0 .001 UF ,+80-20%,100V 20932 281-0862-00 CAP., FXD,C ER DI :O .001 UF ,+80-20%,100 V 20932 283-0203-00 CAP., FXD,C ER DI :0 .47 UF ,20%,50V 72982 281-0773-00 CAP., FXD,C ER DI :0 .01 UF ,10%,100 V 04222

D155C16R8D0 SA201C103KAA 401-ES-100AD102Z 401-E S-100AD102Z 8131 M058Z5UO474 M SA201C103KAA

8-4

REV ΜΑΥ 1983

Re placeable E lect rical

Component No . Al C405

Te ktronix P art No .

Serial/Model No. Eff Dscont

N ame & Desc ription

M fr

Parts-2235 Service

Code

M fr Part Nu mber

Al C414 Al C415

AlC418 AlC419

281-0773-00 281-0773-00 290-0246-00 290-0246-00 281-0862-00 281-0851-00

CAP., FXD,C ER DI :0 .01 UF ,10%,100V CAP., FXD,C ER DI :O .O1 U F ,10%,100V CA P., FXD,EL CTLT :3 .3 UF ,10%,15V CA P., FXD,EL CTLT:3 .3 UF,10%,15V CA P., FXD,C ER DI :0 .001 UF ,+80-20%,100V CA P., FXD,C ER DI :180 PF,5%,t00V DC

04222 04222 56289 56289 20932 20932

SA201C103KAA SA201C103KAA 162D335X9015CD2 162D335X9015CD2 401- ES-100AD102Z 401 EO100AD181 J

Al C420 AlC421 AlC451 AlC453 AlC459 AlC473

281-0773-00 281-0773-00 281-0772-00 281-0862-00 281-0862-00 281-0862-00

CA P., FXD,CER CA P., FXD,C ER CA P., FXD,C ER CA P., FXD,C ER CA P., FXD,C ER CA P., FXD,C ER

04222 04222 04222 20932 20932 20932

SA201C103KAA SA201C103KAA GC701C472K 401- E S-100AD102Z 401- E S-100AD102Z 401- E S-100AD102Z

A l C479 AlC480 AlC494 A l C499 Α1 C501 A l C502

281-0893-00 281-0772-00 281-0773-00 281-0773-00 290-0246-00 281-0773-00

CA P., FXD,C ER D1 :4 .7 PF , +/-O .5 PF ,100V CA P., FXD,C ER DI :0 .0047 UF ,10%,100V CA P., FXD,C ER DI :0 .01 UF ,10%,100V CA P., FXD,C ER DI :0 .01 UF ,10%,100V CA P., FXD,ELCT LT:3 .3UF ,10%,15V CA P., FXD,C ER DI :0 .01 UF,10%,100V

04222 04222 04222 04222 56289 04222

MA101A4 R7DAA GC701C472 K SA201C103KAA SA201C103KAA 162D335X9015CD2 SA201C103KAA

AlC503 Al C504 AlC505 AlC506 AlC507 AlC517

281-0775-00 290-0246-00 290-0183-00 281-0772-00 290-0776-00 281-0772-00

CAP., F XD,C ER DI :O .I UF ,20%,50V CAP., FXD,EL CT LT:3.3 UF ,10%,15V CAP .,FXD,ELCTLT :lUF,10%,35V CAP., FXD,C ER DI :0 .0047UF,10%,100 V CAP., F XD, EL CTLT:22UF,+50-10%,10V CA P., F XD,C ER DI :0 .0047UF,10%,100 V

04222 56289 90201 04222 55680 04222

ΜΑ205Ε104ΜΑΑ 162D335X9015CD2 TAC105K035PO2 GC701C472K ULAlA220T EA GC701C472K

AlC518 AlC519 Α1 C520 AlC525 AlC527 AlC531

281-0852-00 281-0775-00 290-0246-00 281-0895-00 281-0797-00 281-0773-00

CA P., FXD,CER DI :1800PF ,10%,100VDC CA P., FXD,CER DI :0 .1 UF ,20%,50V CA P., FXD, ELCTLT:3 .3 UF ,10%,15V CA P., FXD,C ER DI :6.8PF ,t00W VDC CA P., F XD,C ER D1 :15PF ,10%,100 V CA P., FXD,C ER DI :0.01 UF,10%,100 V

04222 04222 56289 04222 72982 04222

GC101C182 KAA . ΜΑ 205Ε104ΜΑΑ 162D335X9015CD2 MA101A6 R8DAA 8035D9AADCOG150K SA201C103KAA

Al C537 AlC538 AlC539 AlC540 ΑlC545 AlC547

281-0775-00 281-0862-00 281-0862-00 290-0776-00 283-0119-00 281-0767-00

CA P., FXD,C ER DI :O.l UF,20%,50V CA P., FXD,C ER DI :0.001 UF ,+80-20%,100 V CA P.,FXD,C ER DI :O .001 UF ,+80-20%,100 V CA P., FXD,ELCT LT:22UF ,+50-10%,10V CA P., FXD,C ER DI :2200PF,5%,200V CA P., FXD,C ER DI :330 PF ,20%,100V

04222 20932 20932 55680 59660 12969

ΜΑ205Ε104ΜΑΑ 401-ES-100AD102Z 401-ES-100AD102Z U LA1A220TEA 855-536Y5EO222J CG B331 ME X

AlC553 AlC561 AlC565 Al C590 AlC603 AlC635

281-0775-00 281-0862-00 281-0768-00 290-0136-00 281-0862-00 281-0826-00

CA P., FXD,C ER DI :0 .1 UF ,20%,50V CA P., FXD,C ER DI :0 .001 UF ,+80-20%,100V CA P., FXD,C ER DI :470 PF,20%,100 V CA P., FXD,ELCT LT:2.2U F,20%,20V CA P., FXD,C ER DI :0 .001 UF ,+80-20%,100V CAP., FXD,C ER DI :2200PF ,5%,100V

04222 20932 72982 56289 20932 12969

ΜΑ205Ε104ΜΑΑ 401- ES-100AD102Z 8035D9AADW5R471 M 162D225XO020CD2 401- ES-100AD102Z CGC222 KEX

AlC646 AlC647 AlC648 AlC649 AlC673 AlC762

290-0776-00 281-0862-00 281-0862-00 281-0862-00 281-0797-00 281-0811-00

CAP., FXD, EL CT LT:22UF,+50-10%,10V CAP., F XD,C ER DI :0 .001 UF ,+80-20%,100V CA P., FXD,C ER DI :0 .001 UF,+80-20%,100V CA P., F XD,C ER DI :0 .001 UF ,+80-20%,100V CAP., FXD,CER DI :15PF,10%,100 V CA P., F XD,CER DI :10P F ,10%,100 V

55680 20932 20932 20932 72982 72982

U LAIA220T EA

401- ES-100AD102Z 401- ES-100AD102Z 401- ES-100AD102Z 8035D9AAD000150K 8035D2AADC1G100K

AlC764 AlC770 AlC775 AlC777 AlC779 AlC780

281-0773-00 281-0775-00 281-0214-00 281-0771-00 285-1101-00 281-0775-00

CA P.,FXD,C ER DI :0 .01 UF ,10%,100V CA P.,FXD,C ER DI :O.1 UF,20%,50V CA P.,VAR ,C ER DI :0.5-3PF ,400V CA P.,FXD,C ER DI :0.0022UF ,20%,200V CA P.,FXD,PL STC:0.022 UF ,10%,200V CA P., FXD,C ER DI :O.I UF,20%,50V

04222 04222 80031 56289 19396 04222

SA201C103KAA ΜΑ205Ε104ΜΑΑ 2502AO R503VP 02 FO 292C Z5 U222M200B 223ΚΟ2ΡΤ485 ΜΑ205Ε104ΜΑΑ

AlC408

REV ΜΑΥ 1983

DI :0.01 UF,10%,100V DI :0.01 UF,10%,100 V DI :0.0047 UF ,10%,100 V DI :0.001 UF,+80-20%,100 V DI :0.001 UF ,+80-20%,100 V DI :O .001 UF ,+80-20%,100 V

8-5

R eplaceable E lectrical P arts-2235 Service

Te ktronix Se rial/ Model No . Component No . P art No . Eff Dsco nt Co

N ame & Descr i ption

M fr

de

Mfr P art

Nu mber

AlC782 A1C785 AlC787 AIC789 A1C796 AlC797

281-0775-00 281-0661-00 281-0771-00 285-1101-00 281-0775-00 281-0775-00

CA P., FXD,C ER DI :0 .1 UF ,20%,50V CA P., FXD,C ER DI :0 .8 PF , +/ -0 .1 PF ,500 V CA P., FXD,C ER DI :0 .0022UF ,20%,200V CAP., FXD,PL STC:0 .022 UF ,10%,200 V CA P., FXD,C ER DI :0 .1 UF ,20%,50V CA P., FXD,C ER DI :0 .1 UF ,20%,50V

04222 04222 56289 19396 04222 04222

ΜΑ 205Ε104ΜΑΑ 7001-COK-O R8B 292C Z 51.1 222M20013 223ΚΟ2ΡΤ485 ΜΑ 205Ε104ΜΑΑ ΜΑ 205Ε104ΜΑΑ

A l C799 Al CB24 AlCB25 AlCB28 AlC832 AlC835

283-0057-00 281-0785-00 281-0767-00 281-0775-00 281-0775-00 281-0775-00

CA P., FXD,C ER CA P., FXD,C ER CA P., FXD,C ER CA P., FXD,C ER CA P., FXD,C ER CA P., FXD,C ER

DI :O .l UF ,+80-20%,200 V DI :68PF ,10%,100V DI :330 PF ,20%,100 V DI :0 .1 UF ,20%,50V DI :0 .1 UF ,20%,50V DI :O .l UF ,20%,50V

56289 72982 12969 04222 04222 04222

2C20Z5 U 104Z200B 8035D2AAD000680K CG Β331 ΜΕΧ ΜΑ 205Ε104ΜΑΑ ΜΑ 205Ε104ΜΑΑ ΜΑ 205Ε104ΜΑΑ

A1C845 AlC847 AlC849 AlC851 AlC853 AlC854

281-0771-00 283-0057-00 283-0057-00 283-0057-00 281-0791-00 283-0279-00

CA P., FXD,C ER CA P., FXD,C ER CA P., FXD,C ER CA P., FXD,C ER CA P., FXD,C ER CA P., FXD,C ER

DI :0 .0022UF ,20%,200V DI :O .l UF ,+80-20%,200 V DI :O .l UF ,+80-20%,200 V DI :O .l UF ,+80-20%,200 V DI :270 PF ,10%,100 V DI :0 .001 UF ,20%,3000V

56289 56289 56289 56289 72982 59660

292C Z5U222M200B 2c20Z5 U104Z200B 2C20Z5 U1042200B 2C20Z5 U104Z200B 8035D2AADX5R271 K 878-530 Y5SO102M

AlC855 AlC871 AlC873 AlC875 AlC877 AlC879

285-1255-00 283-0057-00 281-0775-00 281-0775-00 281-0775-00 283-0057-00

CAP., FXD, P LASTIC :0 .01UF ,20%,3 KV CA P., FXD,C ER DI :0 .1 UF ,+80-20%,200 V CA P., FXD,C ER DI :0 .1 UF ,20%,50V CA P., FXD,C ER DI :0 .1 UF ,20%,50V CA P., FXD,C ER DI :0 .1 UF ,20%,50V CA P., FXD,C ER DI :0 .1 UF ,+80-20%,200 V

56289 56289 04222 04222 04222 56289

430Ρ582 2C20Z5 U1042200B ΜΑ 205Ε104ΜΑΑ ΜΑ 205Ε104ΜΑΑ ΜΑ 205Ε104ΜΑΑ 2C20Z5 U104Z200 B

AlC893 AlC904 AlC906 AlC907 AlC908 A1C917

283-0279-00 285-1192-00 290-0978-00 285-0932-00 283-0481-00 281-0812-00

CA P., FXD,C ER DI :O .OOI UF ,20%,3000V CA P., FXD,PPR DI :0 .0022UF,20%,250 VAC CAP. , FXD,ELCT LT :75UF ,+50-10%,450V CA P., FXD,PLSTC :I UF ,10%,400 V CA P., FXD,C ER DI :220PF,10%,250 VAC CA P., FXD,C ER DI :1000 PF,10%,t00 V

59660 OOOFG 56289 14752 OOOLD 72982

878-530 Y5SO102M ΡΜΕ271 Υ422 17D1149 230Β1Ε105Κ RK0611 8035D9AADX7R102K

A1C919 AlC922 Α10925 AlC940 AlC941 AlC942

281-0852-00 281-0775-00 290-0973-00 290-0922-00 283-0423-00 290-0768-00

CA P., FXD,C ER DI :1800 PF,10%,t00 VDC CA P., FXD,C ER DI :O .l UF ,20%,50V CAP., FXD,ELCTLT :1000F,20%,25 V DC CA P., FXD,ELCT LT:1000UF,+50-10%,50V CA P., FXD,C ER DI :0 .22 UF ,+80-20%,50V CA P., FXD,ELCT LT:10UF ,+50-10%,100V

04222 04222 55680 55680 04222 54473

GC101C182KAA . ΜΑ205Ε104ΜΑΑ ULB1 E101 M ULB1 E102T FAA NA DG015E224Z ECE-AlOOV10 L

AlC943 AlC944 AlC945 AlC954 AlC956 AlC960

290-0768-00 CA P.,FXD, ELCT LT:10UF ,+50-10%,100V 54473 290-0183-00 CAP.,FXD,ELCTLT :I U F,10%,35V 281-0775-00 CA P., FXD,C ER DI :O .I UF ,20%,50V 04222 290-0947-00 CA P., FXD,ELCT LT:33UF ,+50-10%,160V 55680 290-0946-00 CA P., FXD,ELCT LT:270 UF ,10+100%,40V 90201 290-0945-00 CA P., FXD,ELCT LT:840 UF ,10+100%,12V 90201

AlC961 AlC962 AlC963 AlC968 AlC970 AlC975

290-0945-00 CA P., FXD,ELCT LT:840 UF , l 0+100%,12V 90201 290-0945-00 CA P., FXD,ELCT LT:840 UF ,l0+100%,12V 90201 290-0945-00 CA P., FXD,ELCT LT:840 UF ,l0+100%,12V 90201 290-0945-00 CA P., FXD,ELCT LT:840 UF ,l0+100%,12V 90201 290-0945-00 CA P., FXD,ELCT LT:840 UF ,l0+100%,12V 90201 285-1255-00 CA P., FXD,PLASTIC :0 .01 UF ,20%,3KV 56289

AlC976 AlC979 AlC9272 AlC9273 AlCR133 AlCR183

8-6

285-1255-00 285-1255-00 281-0534-00 281-0534-00 152-0141-02 152-0141-02

CA P., FXD,PLASTIC :0 .01 UF ,20%,3 ΚV CA P., FXD,PLASTIC :O .O1 UF ,20%,3 KV CA P., FXD,C ER DI :3 .3 PF, +/-0 .25 PF ,500V CA P., FXD,C ER DI :3 .3 PF, +/-0 .25PF ,500V SEMICOND DEVICE : SI LICON,30V ,150 MA SEMICOND DEVICE : SI LICON,30V,150 MA

90201

ECE-At00V10 L TAC105 KO35PO2 ΜΑ205Ε104ΜΑΑ UHC2C330TFA VPR271 Ν040Ε1 ElC VPR841 Ν012Ε1 ElC VPR841 Ν012Ε1 ElC VPR841 Ν012Ε1 ElC VPR841 Ν012Ε1 ElC VPR841 Ν012Ε1 ElC VPR841 Ν012Ε1 ElC 430Ρ582

56289 56289 04222 04222 01295 01295

430Ρ582 430Ρ582 7001-COJ-3R3C 7001-COJ-3R3C 1 N4152 R 1 N4152 R

REV ΜΑΥ 1983

R e p laceable

Te kt r onix Se r ial/ M odel No . Code E ff Dscont N ame & Desc ri ption Comp onent No . Part No .

E lectr ical P arts-2235

M fr

M fr P art N u mbe r N4152 R N 4152 R 1 N 4152 R 1 N 4152 R 1 N 4152 R 1 N 4152 R

AlC R 200 AlC R 201 AlC R202 AlC R203 AlC R226 Al CR227

152-0141-02 152-0141-02 152-0141-02 152-0141-02 152-0141-02 152-0141-02

S EM ICO N D DEVICE : SI LICON ,30V ,150 M A S EM ICO N D DEVICE : SI LICON ,30V ,150 M A S EM ICO N D DEVICE : SI LICON ,30V ,150 M A S EM ICO N D DEVICE : SI LICO N ,30V ,150 M A S EM ICO N D DEVICE : SI LICO N ,30V ,150 M A S EM ICO N D DEVICE : SI LICO N ,30V ,150 M A

01295 01295 01295 01295 01295 01295

AlC R228 AlC R229 AlC R372 AlC R381 AlC R 393 Al C R 399

152-0141-02 152-0141-02 152-0141-02 152-0141-02 152-0141-02 152-0141-02

S EM ICO N D DEVICE : SI LICO N ,30V ,150 M A S EM ICO N D DEVICE : SI LICO N ,30V ,150 M A S EM ICON D DEVICE : SI LICO N ,30V ,150 M A S EM ICON D DEVICE : SI LICO N ,30V ,150 M A S EM ICON D DEVICE : SI LICO N ,30V ,150 M A SEM ICON D DEVICE : SI L ICO N ,30V ,150 M A

01295 01295 01295 01295 01295 01295

AlC R 414 Al C R 415 AlC R 503 AlC R 508 AlC R 509 AlC R 514

152-0141-02 152-0141-02 152-0075-00 152-0141-02 152-0141-02 152-0141-02

S EM ICO N D DEVICE : SILICO N ,30 V ,150M A S EM ICO N D DEVICE : SI L ICO N ,30 V ,150MA S EM ICO N D D EV IC E :G E ,25V ,40 M A S EM ICO N D DEVICE : SI L ICO N ,30 V ,150 M A S EM ICO N D DEVICE : SI L ICO N ,30 V ,150 M A S EM ICO N D DEVICE : SI L ICO N ,30 V ,150 M A

01295 01295 14433 01295 01295 01295

AlC R 518 AlC R 551 AlCR 556 AlC R 583 AlC R712 AlC R764

152-0141-02 152-0141-02 152-0141-02 152-0141-02 152-0141-02 152-0141-02

S EM ICO N D DEVICE : SI L ICON,30 V ,150 M A S EM ICO N D DEVICE : SI L ICON,30V ,150 M A S EM ICO N D DEVICE : SI LICON,30V ,150 M A S EM ICO N D DEVICE : SI LICON ,30V ,150 M A S EM ICO N D DEVICE : SI LICON ,30V ,150 M A S EM ICO N D DEVICE : SI LICO N ,30V ,150 M A

01295 01295 01295 01295 01295 01295

AlC R 765 AlC R 768 AlC R 770 AlC R 780 AlC R 805 AlC R 818

152-0141-02 152-0141-02 152-0141-02 152-0141-02 152-0141-02 152-0141-02

S EM ICO N D DEVICE: SI LICO N ,30V ,150 M A S EM ICON D DEVICE: SI LICO N ,30V ,150 M A S EM ICON D DEVICE: SI LICO N ,30V ,150 M A SEM ICON D DEVICE: SI LICO N ,30V ,150 M A S EM ICON D DEVICE: SI LICO N ,30V ,150 M A S EM ICON D DEVICE: SI L ICO N ,30V ,150 M A

01295 01295 01295 01295 01295 01295

AlC R 820 AlC R 823 AlC R 824 AlC R 825 AlC R 829 AlC R 840

152-0141-02 152-0141-02 152-0141-02 152-0141-02 152-0141-02 152-0141-02

S EM ICO N D S EM ICO N D S EM ICO N D S EM ICO N D S EM ICO N D S EM ICO N D

01295 01295 01295 01295 01295 01295

AlC R845 AlC R851 AlC R853 AlC R854 AlC R 055 AlC R 879

152-0141-02 152-0242-00 152-0242-00 152-0242-00 152-0242-00 152-0413-00

S EM ICO N D DEVICE : SI L ICO N ,30 V ,150 M A S EM ICO N D DEVICE : SILICO N ,225 V ,200MA S EM ICO N D DEVICE : SI L ICON ,225 V ,200MA S EM ICO N D DEVICE : SI L ICON ,225 V ,200 M A S EM ICO N D DEVICE : SI LICON ,225 V ,200 M A S EM ICO N D DEVICE : SI LICON ,400 V ,750 M A

01295 07263 07263 07263 07263 12969

A l C R 901 AlC R 902 AlC R 903 AlC R 904 AlCR907 AlC R 908

152-0040-00 152-0040-00 152-0040-00 152-0040-00 152-0808-00 152-0141-02

S EM ICO N D DEVICE : SI LICO N ,600V ,1 Α S EM ICO N D DEVICE : SI LICO N ,600V ,1 Α S EM ICO N D DEVICE : SI LICO N ,600V ,1 Α S EM ICON D DEVICE : SI LICO N ,600V ,1 Α SEM ICON D D EV IC E,DI: RE CTI F I ER ,SI,400V ,1 .OA SEM ICON D DEVICE: SI LICO N ,30V,150 M A

15238 15238 15238 15238 01281 01295

L G109 LG109 LG109 LG109 DS R 340OX 1 N 4152 R

AlC R 920 AlC R 945 AlC R 946 AlC R 947 AlC R 954 AlCR 955

152-0061-00 152-0141-02 152-0414-00 152-0414-00 152-0413-00 152-0413-00

SEM ICON D SEM ICO N D SEM ICO N D S EM ICO N D S EM ICO N D S EM ICO N D

07263 01295 12969 12969 12969 12969

FDH 2161 1 N 4152 R UT R 308 UT R 308 UT R 307 UT R 307

REV ΜΑΥ 1983

DEVICE : SI L ICO N ,30 V ,150M A DEVICE : SI L ICO N ,30 V ,150M A DEVICE : SI L ICO N ,30 V ,150MA DEVICE : SI L ICO N ,30 V ,150M A DEVICE : SI L ICO N ,30 V ,150MA DEVICE : SI L ICO N ,30 V ,150 MA

DEVICE : SILICON, 175V ,100 M A DEVICE : SI L ICO N ,30 V ,150M A DEVICE : SI L ICO N ,200V ,0.75A DEVICE : SI L ICO N ,200V ,0.75A DEVICE : SI L ICO N ,400 V ,750M A DEVICE : SI L ICO N ,400 V ,750M A

Service

1 1

N 4152 R N 4152 R I N 4152 R 1 N 4152 R 1 N 4152 R 1 N 4152 R 1 1

N 4152 R N 4152 R

1 1

G866 1 N 4152R 1 N4152R 1 N4152R

N4152R N4152R 1 N4152R 1 N4152R 1 N 4152R 1 N 4152 R 1 1

N 4152 R N 4152 R 1 N 4152 R 1 N 4152 R 1 N 4152 R 1 N 4152 R 1 1

N 4152 R N 4152 R 1 N 4152 R 1 N 4152 R 1 N 4152 R 1 N 4152 R 1 1

N 4152 R FD H 5004 FD H 5004 F D H 5004 F D H 5004 UTR 307 1

R eplaceable E lectrical

Parts-2235 Service

Component No .

Tektronix P art No .

Serial/Model No. E ff Dscont

AlCR956 AlCR957 AlCR960 AlCR961 AlCR962 AICR963

152-0414-00 152-0414-00 152-0414-00 152-0414-00 152-0414-00 152-0414-00

SEMICOND SEMICOND SEMICOND SEMICOND SEMICOND SEMICOND

AlCR967 Al CR970 Al DS856 AlDS858 Al DS870 Α1DS9150

152-0581-00 152-0581-00 150-0035-00 150-0035-00 150-0035-00 150-1071-00

Α l Ε200 Al E201 Al E272 Α1 Ε590 Α1 Ε907 A11-142

N ame & Description

Mfr

Code

Mfr P art Number

12969 12969 12969 12969 12969 12969

UTR308 UTR308 UTR308 UTR308 UTR308 UTR308

SEMICOND DEVICE : SILICON,20V,1Α SEMICOND DEVICE : SILICON,20V,1Α LAMP,GLOW :90V,0.3MA,AID-T,WIRE LD LAMP,GLOW :90V,0 .3MA,AID-T,WIRE LD LAMP,GLOW :90V,0 .3MA,AID-T,WIRE LD LT EMITTING DIO :GREEN,565NM,20MA ΜΑΧ

04713 04713 ΟΟΟ1- Ι ΟΟΟ1- Ι OOOLI 50434

1 Ν5817 1 Ν5817 JH005/3011JA JH005/3011JA JH005/3011JA OLMP-3531

276-0532-00 276-0532-00 276-0532-00 276-0752-00 276-0635-00 108-0420-00

SHIELDING BEAD,: SHIELDING BEAD,: SHIELDING BEAD,: CORE,EM:FERRITE CORE,EM :TOROID,FERRITE COI L, RF:60NH

02114 02114 02114 OOOLC 08057 80009

56-590-65/4Α6 56-590-65/4Α 6 56-590-65/4Α 6 ΒΡ 53-ΒΗ 3.ΤΧ 10 7J-41405-TC 108-0420-00

Α1 L143 A11-192 Α11-193 Α1L960 Α1L961 Α 10102

108-0420-00 108-0420-00 108-0420-00 108-1058-00 108-1058-00 151-0712-00

COIL,RF:60NH COIL,RF:60NH COIL,RF:60NH COIL,RF: FIXED, 10UH COIL,RF: FIXED, 10UH TRANSISTOR : SILICON,NPN

80009 80009 80009 02113 02113 04713

108-0420-00 108-0420-00 108-0420-00 Β8724 88724 SPS8223

A1Q103 Α 10114 AIQ115 A1Q152 Α10153 A1Q164

151-0712-00 151-0190-00 151-0190-00 151-0712-00 151-0712-00 151-0190-00

TRANSISTOR : SILICON,NPN TRANSISTOR : SILICON,NPN TRANSISTOR : SILICON,NPN TRANSISTOR : SILICON,NPN TRANSISTOR : SILICON,NPN TRANSISTOR : SILICON,NPN

04713 07263 07263 04713 04713 07263

SPS8223 S032677 S032677 SPS8223 SPS8223 S032677

A1Q165 Α10202 AlQ203 Α10206 AlQ207 A1Q230

151-0190-00 151-0212-00 151-0212-00 151-0369-00 151-0369-00 151-0271-00

TRANSISTOR : SILICON,NPN TRANSISTOR : SILICON,NPN TRANSISTOR : SILICON,NPN TRANSISTOR : SILICONRNP TRANSISTOR : SILICON,PNP TRANSISTOR : SILICON, ΡΝΡ

07263 04713 04713 01295 01295 04713

S032677 SRF 518 SRF 518 SKA6664 SKA6664 SPS8236

ΑΙ Q231 AlQ254 AlQ255 A1Q256 Α10257 A l Q283

151-0271-00 151-0752-00 151-0752-00 151-0752-00 151-0752-00 151-0736-00

TRANSISTOR : SILICON,PNP TRANSISTOR : SILICON,NPN TRANSISTOR : SILICON,NPN TRANSISTOR : SILICON,NPN TRANSISTOR : SILICON,NPN TRANSISTOR : SILICON,NPN

04713 01281 01281 01281 01281 04713

SPS8236 LT4403 LT4403 LT4403 LT4403 SPS8317

AlQ284 Α 10285 Α1Q302 Α 10303 Α10327 AlQ328

151-0712-00 151-0712-00 151-0711-01 151-0711-01 151-0711-01 151-0711-01

TRANSISTOR : SILICON,NPN TRANSISTOR : SILICON,NPN TRANSISTOR : NPN,SI TRANSISTOR : NP N,SI TRANSISTOR : NPN,SI TRANSISTOR : NPN,SI

04713 04713 04713 04713 04713 04713

SPS8223 SPS8223 SPS8608M SPS8608M SPS8608M SPS8608M

Α10382 AlQ384 Α10397 Α1 Q402 Α10403 Α1Q413

151-1042-00 151-0711-00 151-0190-00 151-0276-00 151-0276-00 151-0190-00

SEMICOND DVC SΕWΑΤ CΗΕ D PAIR FET TRANSISTOR : SILICON,NPN TRANSISTOR : SILICON,NPN TRANSISTOR : SILICONRNP TRANSISTOR : SILICON,PNP TRANSISTOR : SILICON,NPN

01295 04713 07263 80009 80009 07263

SKA5390 SPS8224 S032677 151-0276-00 151-0276-00 S032677

8-α

DEVICE : SILICON,200V,0 .75A DEVICE : SILICON,200V,0 .75A DEVICE : SILICON,200V,0 .75A DEVICE : SILICON,200V,0 .75A DEVICE : SILICON,200V,0 .75A DEVICE : SILICON,200V,0 .75A

REV ΜΑΥ 1983

Replaceable E lectrical P arts-2235

Service

Tektronix Se rial/ Model No . N ame & Desc ri ption Component Code No . P art No. Eff Dscon t

Mfr

Α10419 Α10420 AlIQ421 AIQ422 AlQ423 Al Q428

151-0711-00 151-0711-00 151-0712-00 151-0199-00 151-0424-00 151-0711-00

TRANSISTOR : SILICON, ΝΡΝ TRANSISTOR : SI LICON, NPN TRANSISTOR : SI LICON, NΡΝ TRANSISTOR:SILICON, PNP TRANSISTOR : SI LICON, NΡΝ TRANSISTOR : SI LICON, NPN

04713 04713 04713 04713 04713 04713

SP S8224 SP S8224 SPS8223 SPS6866K SPS8246 SPS8224

A1Q429 AlQ440 AlQ441 A1Q460 AlQ463 A1Q509

151-0712-00 151-0711-00 151-0711-00 151-0712-00 151-0712-00 151-0188-00

TRANSISTOR : SI LICON, NPN TRANSISTOR : SI LICON, NΡΝ TRANSISTOR : SI LICON, NΡΝ TRANSISTOR : SI LICON, NΡΝ TRANSISTOR : SI LICON, NΡΝ TRANSISTOR : SI LICON, PNP

04713 04713 04713 04713 04713 04713

SPS8223 SPS8224 SPS8224 SPS8223 SPS8223 SPS6868K

A1Q511 AIQ525 A1Q576 A1Q578 AlIQ586 A l Q756

151-0188-00 151-0190-00 151-0199-00 151-0199-00 151-0198-00 151-0190-00

TRANSISTOR : SI LICON, PNP TRANSISTOR : SI LICON, NPN TRANSISTOR : SI LICON RNP TRANSISTOR : SILICON, ΡΝΡ TRANSISTOR : SI LICON , NPN,S EL FR OM MPS918 TRANSISTOR : SI LICON , NPN

04713 07263 04713 04713 04713 07263

SPS6868K S032677 SPS6866K SPS6866K SPS8802-1 S032677

AlQ770 Α10775 A1Q779 AlQ780 Α10785 AlQ789

151-0188-00 151-0347-00 151-0350-00 151-0190-00 151-0347-00 151-0350-00

TR ANSISTOR:SILICON , PNP TR ANSISTOR:SILICON , NPN TRANSISTOR : SI LICONRNP TRANSISTOR : SI LICON,N ΡΝ TRANSISTOR : SI LICON,N ΡΝ TRANSISTOR : SI LICON,PNP

04713 56289 04713 07263 56289 04713

SPS6868K 2Ν5551 SPS6700 S032677 2Ν5551 SPS6700

A1Q804 A1Q814 Al 0825 Α10829 AlIQ835 Α10840

151-0188-00 151-0188-00 151-0424-00 151-0199-00 151-0199-00 151-0347-00

TRANSISTOR : SI LICONRNP TRANSISTOR : SI LICON,PNP TRANSISTOR : SI LICON,NPN TRANSISTOR : SI LICON,PNP TR ANSISTOR:SILICON, PNP TRANSISTOR : SI LICON,NPN

04713 04713 04713 04713 04713 56289

SPS6868K SPS6868K SPS8246 SPS6866K SP S6866K 2Ν5551

AlQ845 A1Q885 Α10908 Α1Q928 Α10930 AlQ935

151-0350-00 151-0443-00 151-0164-00 151-0432-00 151-0164-00 151-0506-00

TRANSISTOR : SI LICON, PNP TRANSISTOR : SI LICON, PNP TRANSISTOR : SI LICON, PNP TRANSISTOR : SI LICON, NΡΝ TRANSISTOR : SI LICON, PNP SC R:SILICON

04713 04713 01295 27014 01295 03508

SP S6700 SP S7950 SKB3334 Τ07391 Ε2 S KB3334 C106 B2X283

Α1 Q938 Α1Q939 AlQ944 AlQ946 Α10947 A1Q9070

151-0276-00 151-0276-00 151-0432-00 151-0476-02 151-0476-02 151-1151-00

TRANSISTOR : SI LICON, PNP TRANSISTOR : SI LICON, PNP TR ANSISTOR :SILICON, NPN TRANSISTOR : SI LICON, NPN,S EL TRANSISTOR : SI LICON, NPN,S EL TRANSISTOR : Ν-C HANNEL,SI

80009 80009 27014 04713 04713 04713

151-0276-00 151-0276-00 Τ07391Ε2 OB D OB D ΜΡΤ3Ν40

Al R 100 Al R101 Al R102 Al R 103 A1 R104 AI R 105

315-0430-00 315-0430-00 321-0155-00 321-0155-00 321-0101-00 321-0101-00

RE S., FXD,C MP SN:430HM ,5%,0.25W RE S., FXD,C MP SN:430HM ,5%,0.25W RE S., FXD,FILM :402 ΟΗΜ,1%,0.125 W RE S., FXD,FI LM :402 ΟΗΜ,1%,0.125 W RE S., FXD,FI LM :1100HM ,1%,0.125 W RE S., FXD,FI LM :1100HM ,1%,0.125 W

01121 01121 91637 91637 91637 91637

CB4305 CB4305 MFF1816G402 ROF MFF1816G402 ROF MFF1816G110 ROF MFF1816G110 ROF

A1 R 106 A1 R108 A1 R 109 A1 R114 A1 R115 Al R120

321-0161-00 321-0223-00 321-0221-00 321-0225-00 321-0225-00 321-0123-00

RE S., FXD,FI LM :4640HM ,1%,0.125 W RE S., FXD,FILM : 2.05K ΟΗΜ,1%,0.125 W RE S., FXD,FI LM :1 .96K ΟΗΜ,1%,0.125 W RE S., FXD,FI LM :2 .15K ΟΗΜ,1%,0.125 W RE S., FXD,FI LM :2 .15K ΟΗΜ,1%,0.125 W RE S., FXD,FI LM :187 ΟΗΜ,1%,0.125 W

91637 91637 91637 91637 91637 91637

MFF1816G464 ROF MFF1816G20500F MFF1816G19600F MFF1816G21500F MFF1816G21500F MFF1816G187 ROF

REV ΜΑΥ 1983

Mfr Part N um be r

α-9

R eplacea ble E lect rical Parts-2235

Service

Tektronix Se rial/ Model No . Co mp o nCode ent No . Part No . E ff Dsco nt N ame & Descriptio n

M fr

Al R121 A1 R 122 Α119125 A1 R126 A1 R130 A1 R131

321-0123-00 315-0750-00 315-0242-00 315-0182-00 315-0510-00 315-0510-00

RE S., F XD, FI LM :187 ΟΗΜ,1%,0.125W RE S., F XD,CMPSN:750 HM ,5%,0.25W RE S., FXD,CMPSN:2 .4 K OHM,5%,0 .25W RE S., FXD,C MPSN:1 .8 K OHM,5%,0 .25W RE S., FXD,C MPSN:51 OHM,5%,0 .25W RE S., FXD,C MP SN:51 OHM,5%,0 .25W

91637 01121 01121 01121 01121 01121

MFF1816G187 ROF CB7505 CB2425 CB1825 CB5105 CB5105

Al R132 AI R 133 AI R135 A1 R 136 A1 R 138 A1 R139

315-0511-00 315-0111-00 315-0101-00 315-0101-00 315-0182-00 315-0302-00

RE S., FXD,C MP SN:510 OHM,5%,0 .25W RE S., FXD,C MP SN:1100HM ,5%,0.25W RE S., FXD,C MP SN:1000HM ,5%,0.25W RE S., FXD,C MP SN:1000HM ,5%,0.25W RE S., FXD,C MP SN:1 .8 K OHM,5%,0 .25W RES .,FXD,C MP SN:3 K OHM,5%,0 .25W

01121 01121 01121 01121 01121 01121

CB5115 C8 1115 CB1015 CB1015 C B 1825 CB3025

A1 R142 A1 R143 Α1 R144 Α114145 Α1 R 150 Α1 R151

315-0101-00 315-0101-00 315-0511-00 311-1238-00 315-0430-00 315-0430-00

RE S., FXD,C MP SN:1000HM ,5%,0.25W RE S., FXD,C MP S N :t000HM,5%,0.25W RE S., FXD,C MP SN:5100HM,5%,0.25W RES.,VAR,N ONW I R:5 K ΟΝΜ,10%,0 .50W RES., FXD,C MP SN:43 OHM,5%,0 .25W RES., FXD,C MP SN:43 OHM,5%,0 .25W

01121 01121 01121 73138 01121 01121

CB1015 C B 1015 CB5115 72-27-0 CB4305 CB4305

Α119152 A1 R 153 Α119154 A1 R 155 A1 R 156 A1 R 158

321-0155-00 321-0155-00 321-0101-00 321-0101-00 321-0161-00 321-0223-00

RES., FXD,FI LM :402 ΟΗΜ,1%,0.125 W RES., FXD,FI LM :4020HM ,1%,0.125 W RES., F XD,FI LM :110 ΟΗΜ,1%,0.125 W RES., FXD,FI LM :1100HM ,1%,0.125W RES., F XD,FI LM :4640HM ,1%,0.125W RES., F XD,FI LM :2.05K 0ΗΜ ,1%,0.125W

91637 91637 91637 91637 91637 91637

MFF1816G402 ROF MFF1816G402 ROF MFF1816G110 ROF MFF1816G110 ROF MFF1816G464 ROF MFF1816G20500 F

A1 R159 A1 R164 A1 R165 Α1 R170 A1 R171 Al R172

321-0221-00 321-0225-00 321-0225-00 321-0123-00 321-0123-00 315-0750-00

RES., F XD,FI LM :1 .96K ΟΗΜ ,1%,0.125 W RES., FXD,FI LM :2.15K ΟΗΜ ,1%,0.125 W RE S., F XD,FI LM :2.15K ΟΗΜ ,1%,0.125 W RE S., FXD,FI LM :1870ΗΜ ,1%,0.125W RE S., FXD,FI LM :1870HM ,1%,0.125W RE S., FXD,C MPSN:750 HM ,5%,0.25W

91637 91637 91637 91637 91637 01121

MFF1816G19600 F MFF1816G21500 F MFF1816G21500 F MFF1816G187 ROF MFF1816G187 ROF CB7505

Α1 R175 A1 R176 A1 R 180 A1 R181 A1 R182 A1 R183

315-0242-00 315-0182-00 315-0510-00 315-0510-00 315-0511-00 315-0111-00

RE S., FXD,C MPS N :2 .4 K OHM,5%,0 .25W RE S., FXD,CMPSN:1 .8 K ΟHΜ ,5%,0.25W RE S., FXD,CMPS N :51 OHM,5%,0 .25W RE S., FXD,CMPSN:51 OHM,5%,0 .25W RE S., FXD,CMPS N :510 OHM,5%,0 .25W RE S., FXD,CMPS N :1100HM ,5%,0.25W

01121 01121 01121 01121 01121 01121

CB2425 CB1825 CB5105 C65105 CB5115 CB1115

A1 R185 A1 R186 A1 R188 Al R189 A1 R192 A1 R193

315-0101-00 315-0101-00 315-0182-00 315-0302-00 315-0101-00 315-0101-00

RE S., FXD,CMP S N :t000HM ,5%,0.25W RE S., FXD,CMP SN :1000HM ,5%,0.25W RE S., FXD,CMP S N :1 .8 K OHM,5%,0 .25W RES.,FXD,CMP S N :3 K OHM,5%,0 .25W RE S., FXD,CMP S N :1000HM ,5%,0.25W RE S., FXD,CMP S N :1000HM ,5%,0.25W

01121 01121 01121 01121 01121 01121

CB1015 CB1015 C B 1825 CB3025 CB1015 C B 1015

Α119194 A1 R195 AllR200 AI R202 Α 114203 A1 R204

315-0511-00 311-1238-00 315-0911-00 321-0178-00 321-0178-00 321-0089-00

RE S., FXD,C MP S N :510 0ΗΜ ,5%,0.25W RE S., VAR, N ONW I R:5K ΟΗΜ,10%,0 .50W RE S., FXD,C MP S N :910 0ΝΜ ,5%,0.25W RE S., FXD,FI LM :698 ΟΗΜ,1%,0.125 W RE S., FXD,FI LM :698 ΟΗΜ,1%,0.125 W RE S., FXD,FI LM :82.5 ΟΗΜ,1%,0.125 W

01121 73138 01121 91637 91637 91637

C B 5115 72-27-0 CB9115 MFF1816G698 ROF MFF 1816G698 ROF MFF 1816G82R50 F

A1 R206 A1 R207 Αl R210 Α 114212 Al R213 A1 R215

321-0139-00 321-0139-00 315-0431-00 321-0086-00 321-0086-00 321-0135-00

RE S., FXD,FI LM :2740HM ,1%,0 .125 W RES., FXD,FI LM :2740HM ,1%,0 .125 W RES., FXD,C MP SN:430 OHM,5%,0 .25W RES., FXD,FI LM :76.8 0ΗΜ ,1%,0 .125 W RES., FXD,FI LM :76.8 ΟΗΜ,1%,0 .125W RES., FXD,FI LM :249 ΟΗΜ,1%,0.125W

91637 91637 01121 91637 91637 91637

MFF 1816G274 ROF MFF1816G274 R O F CB 4315 MFF1816G76R 80 F MFF1816G76R 80 F MFF1816G249 ROF

Mfr P art Number

REV ΜΑΥ 1983

R eplaceable Electrical P arts-2235 Service

Te ktronix Serial/ Model No . Co Component No . P art No . E ff Dscont

N ame & Descri ption

Mfr

de

Mfr P art

Number

Al R216 Α 1 R217 Al R218 Al R219 Al R220 Al R222

321-0163-00 321-0163-00 321-0102-00 321-0102-00 307-0104-00 321-0318-00

RES., FXD,FI LM :487ONΜ ,1%,0.125 W RE S., FXD,FI LM :487 ΟΗΜ ,1%,0.125 W RE S., FXD,FI LM :113ONΜ ,1%,0.125 W RE S ., FXD,FI LM :113ONΜ ,1%,0.125 W RE S.,FXD,C MP S N :3.3O NΜ,5%,0.25W RE S.,FXD, FILM : 20 K ΟΗΜ,1%,0.125 W

91637 91637 91637 91637 01121 91637

MFF1816G487 R O F MFF1816G487 R O F MFF1816G113 ROF MFF1816G113R OF CB33G5 MFF1816G20001 F

Al R223 Α1 R 225 All R226 Al R227 Al R230 Al R231

321-0318-00 315-0103-00 315-0221-00 315-0221-00 321-0086-00 321-0086-00

RE S.,FXD,FI LM :20K 0NΜ,1%,0.125 W RE S.,FXD,CMP S N:10K ΟΗΜ,5%,0.25W RE S., F XD,CMP S N:220ONΜ,5%,0.25W RE S., FXD,CMP S N :220O ΗΜ ,5%,0 .25W RE S., FXD, FI LM :76.8 ΟΗΜ,1%,0.125W RE S., FXD, FILM : 76 .8ONΜ,1%,0.125W

91637 01121 01121 01121 91637 91637

MFF1816G20001 F CB1035 CB2215 CB2215 MFF1816G76R80 F MFF1816G76R80 F

Al R233 Al R234 Al R235 Al R236 Al R239 Al R240

321-0085-00 315-0360-00 315-0360-00 315-0751-00 315-0242-00 311-1248-00

RE S., FXD,FI LM :75 ΟΗΜ,1%,0.125 W RE S., FXD,C MPSN:36O NΜ,5%,0.25W RES., FXD,C MPS N :36O HΜ ,5%,0.25W RES., FXD,C MP S N:750 ΟΗΜ,5%,0.25W RES., FXD,C MP SN:2 .4 K ΟΗΜ,5%,0.25W RES., VAR, N ONW I R :5000ΗΜ ,10%, 0 .50W

91637 01121 01121 01121 01121 73138

MFF1816G75ROO F CB3605 CB3605 CB7515 CB2425 72-23-0

Al R241 Α1 R242 Al R244 At R245 Al R250 Al R251

311-1237-00 315-0273-00 321-0172-00 321-0172-00 315-0221-00 315-0221-00

RES.,VAR,NONW IRA K ΟΗΜ,10%,O .50W RES., FXD,C MP SN:27K ΟΗΜ ,5%,0.25W RES., FXD,FILM : 604 ΟΗΜ,1%,0.125 W RES., FXD,FI LM :604 ΟΗΜ,1%,0.125 W RE S., FXD,C MP SN:220ONΜ,5%,0.25W RE S., FXD,C MP SN:220OΗΜ ,5%,0.25W

32997 01121 91637 91637 01121 01121

3386Χ-ΤΟ7-102 CB2735 MFF1816G604 ROF MFF1816G604 ROF CB2215 CB2215

Al R254 Al R255 Al R256 Al R257 Al R258 Al R259

321-0110-00 321-0110-00 322-0175-00 322-0175-00 322-0180-00 322-0180-00

RE S., FXD,FI LM :137OΗΜ ,1%,0 .125 W RE S., FXD, FI LM :137ONΜ,1%,0.125 W RE S., FXD,FI LM :649 ΟΗΜ,1%,0 .25W RE S., FXD, FI LM :649O ΗΜ ,1%,0.25W RE S., FXD,FI LM :732ONΜ,1%,0.25W RE S., FXD, FI LM :732OΗΜ ,1%,0 .25W

91637 91637 75042 75042 75042 75042

MFF1816G137 ROF MFF1816G137 ROF CEBTO-649OF CEBTO-649OF CEBTO-732OF CEBTO-732OF

Al R261 Al R262 Α1 R266 Al R267 At R268 Al R269

323-0058-00 315-0151-00 323-0114-00 323-0114-00 323-0114-00 323-0114-00

RE S., FXD, F I LM :39.2ONΜ,1%,0 .5W RE S., FXD,C MPSN:150ONΜ,5%,0.25W RE S., FXD, FI LM :150 ΟΗΜ,1%,0.50W RE S., FXD,FI LM :150ONΜ,1%,0 .50W RE S., F XD, FI LM :150OΗΜ ,1%,O.50W RE S., FXD,FI LM :150 ΟΗΜ,1%,0 .50W

91637 01121 75042 75042 75042 75042

CMF65-116GB9R20 F CB1515 CECTO-150O F CECTO-150O F CECTO-150O F CECTO-150OF

Al R270 Al R271 At R279 All R281 Al R282 Α1 R283

323-0114-00 323-0114-00 315-0223-00 315-0821-00 315-0752-00 315-0471-00

RES., FXD,F I LM :150 ΟΗΜ,1%,0 .50W RES., FXD,FI LM :150ONΜ,1%,0.50W RES., FXD,C MP S N:22K 0ΗΜ ,5%,0.25W RES., FXD,C MP SN :820 0ΗΜ ,5%,0.25W RES., FXD,C MP SN :7 .5K ΟΗΜ,5%,0.25W RES., FXD,C MP SN :470 ΟΗΜ ,5%,0.25W

75042 75042 01121 01121 01121 01121

CECTO-150OF CECTO-150OF CB2235 CB8215 CB7525 CB4715

Α18284 Al R285 At R286 Al R287 Α1 Ρ288 Al R289

315-0621-00 315-0561-00 321-0068-00 321-0068-00 315-0431-00 315-0431-00

RE S., FXD,C MP S N :620 ΟΗΜ ,5%,0.25W RE S., FXD,C MP SN:560 ΟΗΜ,5%,0 .25W RE S., FXD, FI LM :49 .9O ΗΜ ,1%,0.125 W RE S., FXD,FI LM :49.9ON Μ,1%,0.125 W RE S., FXD,C MP S N :430 0ΝΜ ,5%,0.25W RE S., FXD,C MP SN:430 ΟΗΜ,5%,0 .25W

01121 01121 91637 91637 01121 01121

CB6215 CB5615 MFF1816G49R90 F MFF1816G49R90 F CB4315 CB4315

At R292 Α1 R293 Al R301 AI R302 Α1 R303 Α1 R304

321-0179-00 315-0620-00 315-0221-00 315-0221-00 315-0221-00 315-0152-00

RE S., FXD,FI LM :715 ΟΗΜ ,1%,0 .125W RE S., FXD,CMP S N:62 ΟΗΜ,5%,0.25W RE S., FXD,CMPSN:220O ΗΜ ,5%,0 .25W RE S., FXD,C MPSN:220 ΟΗΜ,5%,0.25W RE S., F XD,C MPS N:220 ΟΗΜ,5%,0.25W RE S., FXD,C MPSN:1 .5 K ΟΗΜ,5%,0.25W

91637 01121 01121 01121 01121 01121

MFF1816G715 ROF CB6205 CB2215 CB2215 CB2215 CB1525

REV ΜΑΥ 1983

8 -11

R eplaceable E lect r ical Parts-2235 Service

Te ktronix Ser ial/Model No . Component No . P art No . Eff Dsco nt Co

N ame & Description

Mfr

de

M fr Part N um ber

Al R305 Al R306 Α111307 Al R309 Al R310 Al R311

315-0152-00 315-0470-00 315-0470-00 311-1564-00 321-0194-00 321-0194-00

RE S., FXD,C MP SN:1 .5 K ΟΗΜ ,5%,0.25W RE S ., FXD,C MP SN:470 HM ,5%,0.25W RE S., FXD,C MP SN:47 ΟΗΜ,5%,0.25W RES.,VAR,N ONW I R:T RMR,5000HM ,0.5 W RE S., FXD,FI LM :1 .02K ΟΗΜ,1%,0.125W RES ., FXD, FI LM :1 .02K ΟΗΜ,1%,0.125W

01121 01121 01121 73138 91637 91637

CB1525 CB4705 C64705 91-86-0 MFF1816G10200F MFF1816G10200F

Al R312 Al R314 Al R315 Al R317 ΑΙ R318 Al R319

321-0098-00 321-0170-00 321-0170-00 321-0209-00 321-0198-00 321-0213-00

RES ., FXD,FI LM :1020HM ,1%,0.125W RES., FXD, FILM : 5760 HM ,1%,0.125W RES ., FXD,FI LM :5760HM ,1%,0.125W RES., FXD,FI LM :1 .47K ΟΗΜ,1%,0.125 W RE S ., FXD, FI LM :1 .13K ΟHΜ,1%,0.125 W RE S., FXD,FI LM :1 .62K ΟΗΜ,1%,0.125 W

91637 91637 91637 91637 91637 91637

MFF1816G102 ROF MFF1816G576 ROF MFF1816G576 ROF MFF1816G14700 F MFF1816G1130O F MFF1816G16200 F

91637 91637 01121 01121 01121

MFF1816G14300 F MFF1816G31600 F C81015 CB2215 CB2215 CB2215

Al R321 Al R322 Α1 R324 Al R326 Al R327 Al R328

321-0208-00 RE S.,FXD, FILM : 1 .43K ΟΗΜ ,1%,0.125 W 321-0241-00 RE S., FXD, F I LM :3 .16K ΟΗΜ ,1%,0.125 W 315-0101-00 RE S., FXD,CMP SN:100 0ΗΜ ,5%,0. 25 W 01121 315-0221-00 RE S ., F XD,CMP SN:2200HM ,5%,0.25W 315-0221-00 RE S., FXD,C MP SN:2200HM ,5%,0.25W 315-0221-00 RE S., F XD,C MP SN:2200HM ,5%,0.25W

Al R329 Al R330 Al R331 Al R332 Al R335 Al R336

315-0152-00 315-0152-00 315-0470-00 315-0470-00 321-0203-00 321-0203-00

RE S ., FXD,C MP SN:1 .5 K ΟΗΜ ,5%,0.25W RE S., FXD,C MP SN:1 .5 K ΟΗΜ ,5%,0.25W RE S ., FXD,C MP SN:470HM ,5%,0.25W RE S., FXD,C MP SN:47 ΟΗΜ,5%,0.25W RE S., FXD, FI LM :1 .27K ΟΗΜ,1%,0.125W RE S., FXD,FILM : 1 .27K ΟΗΜ,1%,0.125W

01121 01121 01121 01121 91637 91637

C81525 C61525 CB4705 CB4705 MFF1816G12700F MFF1816G12700 F

Al R337 Al R339 Al R340 Al R342 Al R343 Al R344

321-0098-00 321-0170-00 321-0170-00 321-0209-00 321-0198-00 321-0213-00

RES., FXD,FI LM :102 ΟΗΜ,1%,0.125 W RES., FXD,FI LM :5760HM ,1%,0.125 W RES., FXD,FI LM :5760HM ,1%,0.125 W RES., FXD,FI LM :1 .47K ΟΗΜ,1%,0.125W RES., FXD,FI LM :1 .13K ΟΗΜ,1%,0.125W RES., FXD,FI LM :1 .62K ΟΗΜ,1%,0.125W

91637 91637 91637 91637 91637 91637

MFF1816G102 ROF MFF1816G576 ROF MFF1816G576 ROF MFF1816G14700 F MFF1816G1130O F MFF1816G16200 F

91637 91637

MFF1816G14300 F MFF1816G31600 F CB1015 CB4705 CB4705 MFF1816G71500 F

A l R346

Al R347 Al R349 Al R350 Al R351 Al R352

321-0208-00 RES., FXD,FI LM :1 .43K 0ΗΜ ,1%,0.125W 321-0241-00 RES., FXD,FI LM :3 .16K 0ΗΜ ,1%,0.125W 315-0101-00 RE S., FXD,C MPSN:100 ΟΗΜ,5%,0. 25 W 01121 315-0470-00 RE S., FXD,C MPS N :47 ΟΗΜ,5%,0.25W 315-0470-00 RE S., FXD,C MPSN:470 HM ,5%,0.25W 321-0275-00 RE S., FXD,FI LM :7 .15K ΟΗΜ,1%,0.125 W

Al R353 Α1 R356 AlR357 Al R358 Al R359 Al R360

321-0275-00 RE S., FXD, FI LM :7 .15K 0ΗΜ ,1%,0.125 W 315-0622-00 RE S., FXD,CMPS N :6.2 K ΟΗΜ,5%,0.25W 321-0149-00 RE S., FXD,FI LM :3480HM ,1%,0 .125 W 315-0101-00 RE S., FXD,CMPSN :100 ΟΗΜ,5%,0. 25W 01121 321-0148-00 RE S., FXD,FI LM :3400HM ,1%,0 .125 W 321-0156-00 RE S., FXD,FI LM :412 ΟΗΜ ,1%,0.125 W

ΑΙ R 361 Al R363 Al R365 Al R366 AI R 367 ΑΙ R369

315-0101-00 RE S., FXD,C MP S N :100 ΟΗΜ,5%,0. 25W 01121 315-0331-00 RE S., FXD,C MP SN:3300HM ,5%,0.25W 315-0620-00 RE S., FXD,C MP S N :620HM ,5%,0.25W 315-0202-00 RES.,FXD,C MP SN:2 K ΟΗΜ ,5%,0.25W 315-0911-00 RE S., FXD,C MP SN :910 ΟΗΜ,5%,0.25W 315-0751-00 RES., FXD,C MP SN:750 ΟΗΜ,5%,0.25W

Α1 R372 Al R374 Al R381 Α1 R382 Α1 R384 Al R385

8- 1 2

315-0220-00 315-0202-00 321-0444-00 315-0470-00 315-0121-00 315-0130-00

RES., FXD,C MP SN:22 ΟΗΜ ,5%,0.25W RES.,FXD,C MP SN :2 K ΟΗΜ ,5%,0.25W RES., FXD,FI LM :412 K ΟΗΜ,1%,0 .125W RES., FXD,C MP SN :47 ΟΗΜ ,5%,0.25W RES., FXD,C MP SN :120 ΟΗΜ,5%,0.25W RES., FXD,C MP SN :130 HM ,5%,0.25W

01121 01121 91637 91637 01121 91637 91637 91637

MFF1816G71500F CB6225 MF F1816G348 ROF CΒ1015 MFF1816G340ROF MFF 1816G412ROF

01121 01121 01121 01121 01121

CB1015 CB3315 CB6205 CB2025 CB9115 CB7515

01121 01121 91637 01121 01121 01121

CB2205 CB 2025 MFF 1816G41202 F CB4705 CB1215 C81305

REV ΜΑΥ 1983

R e p laceable

Te ktronix Serial/ Model No . Component P art No . Co No . E ff Dsco nt

N ame & Description

E lect rical

Mfr

de

Parts-2235 Service

Mfr Part Number

Al R386 315-0911-00 RE S., FXD,C MPSN:9100HM ,5%,0.25W All R389 315-0100-00 RE S., FXD,C MPSN:100 HM ,5%,0.25W Al R390 01121 315-0101-00 RE S., FXD,C MPSN:100 ΟΗΜ,5%,0. 25 W Al R392 315-0751-00 RE S., FXD,C MP SN:750 ΟΗΜ,5%,0.25W At R393 315-0240-00 RE S., FXD,C MP SN:24 ΟΗΜ,5%,0.25W Α1 R395 315-0911-00 RE S., FXD,CMP SN:9100HM ,5%,0.25W

01121 01121 01121 01121 01121

C B 9115 CB1005 C B 1015 CB7515 CB2405 CB9115

Al R397 At R398 Al R399 Α1 R402 All R405 Al R407

315-0200-00 315-0201-00 315-0751-00 315-0182-00 315-0752-00 315-0752-00

RE S., FXD,CMP SN:200 HM ,5%,0.25W RE S., FXD,C MP SN:2000HM ,5%,0.25W RE S., FXD,C MP SN:7500HM ,5%,0.25W RE S., FXD,C MP SN:1 .8 K 0ΗΜ ,5%,0.25W RE S., FXD,C MP SN:7 .5 K ΟΗΜ,5%,0.25W RE S., FXD,C MP SN:7 .5 K ΟΗΜ ,5%,0.25W

01121 01121 01121 01121 01121 01121

CB2005 CB2015 CB7515 CB1825 CB7525 CB7525

At R408 Al R411 Α1 R 412 At R413 Al R414 Al R415

315-0392-00 315-0103-00 315-0102-00 315-0113-00 315-0244-00 315-0244-00

RE S., FXD,C MP SN:3 .9 K ΟΗΜ ,5%,0.25W RE S., FXD,C MP SN:10K ΟΗΜ ,5%,0 .25W RES., FXD,C MP SN:1 Κ ΟΗΜ,5%,0.25W RES., FXD,C MP SN:11 Κ 0 ΗΜ ,5%,0 .25W RES., FXD,C MP SN:240 K ΟΗΜ,5%,0.25W RES., FXD,C MP S N:240 K ΟΗΜ,5%,0.25W

01121 01121 01121 01121 01121 01121

CB3925 CB1035 CB1025 CB1135 CB2445 CB2445

Al R416 At R417 Α1 R419 At R420 Al R421 Al R422

315-0473-00 315-0473-00 315-0182-00 315-0101-00 315-0203-00 315-0100-00

RES., FXD,C MP S N:47K ΟΗΜ,5%,0.25W RES., FXD,C MP SN:47K ΟΗΜ,5%,0.25W RES., FXD,C MP SN:1 .8 K ΟΗΜ ,5%,0.25W RES., FXD,C MP SN:1000HM ,5%,0.25W RES., FXD,C MP SN:20K ΟΗΜ ,5%,0.25W RES., FXD,C MP SN:100H M ,5%,0 .25W

01121 01121 01121 01121 01121 01121

CB4735 CB4735 CB1825 CB1015 CB2035 CB1005

Α1 R423 Α1 R424 All R426 Α1 R427 Α1 R 428 Al R429

315-0100-00 315-0203-00 315-0434-00 315-0434-00 315-0102-00 315-0102-00

RES., FXD,C MP SN :100HM ,5%,0 .25W RES., FXD,C MP SN :20K ΟΗΜ,5%,0.25W RES., FXD,C MPSN :430K ΟΗΜ,5%,0.25W RES., FXD,C MPSN :430K 0 ΗΜ ,5%,0.25W RES., FXD,C MPSN :1 Κ ΟΗΜ ,5%,0.25W RES., FXD,C MPSN :1 Κ ΟΗΜ ,5%,0.25W

01121 01121 01121 01121 01121 01121

CB1005 CB2035 CB4345 CB4345 CB1025 CB1025

Al R432 315-0823-00 RES., FXD,C MPSN :82K ΟΗΜ,5%,0.25W At R433 315-0823-00 RES., FXD,C MPSN :82K ΟΗΜ,5%,0 .25W Al R434 311-1646-00 RES.,VAR,NONW I R:TRMR,2 M OHM,0.5W At R435 311-1646-00 RES.,VAR,NONW I R:TRMR,2 M OHM ,0 .5 W Al R 44001121 315-0101-00 RE S., FXD,C MPS N :100 0ΝΜ ,5%,0. 25 W Al R441 315-0101-00 RE S., FXD,C MPSN :1000HM ,5%,0.25W

01121 01121 01121 01121 01121

CB8235 CB8235 Ε4Α205 Ε4Α205 CB1015 CB1015

Al R442 Al R443 Al R444 Al R446 Α1 R 448 Α1 R 449

321-0087-00 321-0087-00 315-0162-00 315-0224-00 315-0270-00 315-0270-00

RE S., FXD,FI LM :78.7 ΟΗΜ,1%,0 .125W RE S., FXD,FI LM :78 .7 ΟΗΜ,1%,0 .125W RE S., FXD,C MPSN:1 .6K ΟΗΜ,5%,0.25W RE S., FXD,C MPSN:220K ΟΗΜ,5%,0.25W RE S., FXD,C MPSN:27 ΟΗΜ,5%,0.25W RE S., FXD,C MPS N :27 ΟΗΜ,5%,0.25W

91637 91637 01121 01121 01121 01121

MFF1816G78R70F MFF1816G78R70F CB1625 CB2245 CB2705 CB2705

Α1 R 451 AI R452 Al R453 Al R455 Al R457 Al R458

315-0100-00 315-0272-00 315-0470-00 315-0100-00 321-0207-00 321-0197-00

RE S., FXD,CMPS N:10 ΟΗΜ,5%,0.25W RE S., FXD,CMPSN:2 .7 K ΟΗΜ,5%,0 .25W RE S., FXD,CMPS N:47 ΟΗΜ,5%,0.25W RE S., FXD,CMPSN:100 HM ,5%,0 .25W RE S., FXD,FI LM :1 .4 K ΟΗΜ,1%,0 .125 W RE S., FXD,FI LM :I .1 K ΟΗΜ,1%,0.125 W

01121 01121 01121 01121 91637 91637

CB1005 CB2725 CB4705 CB1005 MFF1816G14000 F MFF1816G11000 F

A1 R459 Al R460 At R461 Al R462 Al R463 Al R464

315-0242-00 321-0091-00 321-0203-00 321-0201-00 321-0090-00 315-0271-00

RE S., FXD,CMPSN:2AK ΟΗΜ,5%,0 .25W RE S., FXD,FI LM :86.60HM ,1%,0 .125 W RE S., FXD,FILM :1 .27K ΟΗΜ,1%,0 .125 W RE S., FXD,FI LM :1 .21 K ΟΗΜ ,1%,0.125 W RE S., FXD,FI LM :84.5 ΟΗΜ,1%,0 .125 W RE S., FXD,C MPSN:2700HM ,5%,0.25W

01121 91637 91637 91637 91637 01121

CB2425 MFF1816G86R 60 F MFF1816G12700 F MFF1816G12100 F MFF1816G84R50 F CB2715

REV ΜΑΥ 1983

8-1 3

R eplaceable E lect rical P arts-2235 Service

Te ktronix Serial/ Model No . Component No . Part No. E ff Dscont N ame & Desc ri ption Code

Mfr

Al R465 Al R469 Al R470 Al R471 Α 111473 Al R474

01121 01121 01121 73138 01121 01121

CB4315 CB8205 CB1135 72-28-0 CB3925 C84325

At R478 315-0222-00 RE S., FXD,C MP S N :2 .2 K ΟΗΜ,5%,0.25W At R479 311-1236-00 RE S., VAR, NONW I R :250ONΜ,10%,0 .50W Α1 R 483 01121 315-0391-00 RE S., FXD,C MP SN:390 ΟΗΜ ,5%,0 .25W Al R486 315-0431-00 RE S., FXD,C MP SN :430ONΜ ,5%,0.25W Al R487 315-0471-00 RE S., FXD,C MP S N :470OΗΜ ,5%,0.25W Αl R494 307-0104-01 RE S., FXD,C MP SN :3 .3 ΟΗΜ ,5%,0.25W

01121 73138

CB2225 72-22-0 CB3915 CB4315 CB4715 CB33G5

Al R499 307-0104-01 RE S., FXD,C MP SN:3 .3 ΟΗΜ ,5%,0.25W Α 1 R 501 01121 315-0512-00 RE S., FXD,C MP SN:5 .1 Κ ΟΗΜ,5 %,0.25W Α1 R 502 01121 315-0911-00 RE S., FXD,C MP SN:910 ΟΗΜ,5 %,0 .25W Al R503 315-0473-00 RES., FXD,C MP SN:47K ΟΗΜ,5%,0.25W At R504 315-0124-00 RES., FXD,C MP S N :120K ΟΗΜ,5%,0.25W At R505 315-0473-00 RES., FXD,C MP SN:47K ΟΗΜ,5%,0.25W

01121 01121 01121 01121

CB33G5 CB5125 CB9115 CB4735 CB1245 CB4735

Al R507 Al R509 Al R510 Al R511 Α1 R512 Al R513

315-0391-00 315-0222-00 315-0471-00 315-0392-00 315-0432-00 315-0391-00

RES., FXD,C MPSN:3900ΗΜ ,5%,0.25W RE S., FXD,C MPSN:2.2K ΟΗΜ,5%,0.25W RE S., FXD,C MPSN:470ONΜ,5%,0.25W RE S., FXD,C MPSN:3.9K ΟΗΜ,5%,0.25W RE S.,FXD,C MP SN:4.3K ΟΗΜ,5%,0.25W RE S., FXD,CMP S N :390 ΟΗΜ,5%,0.25W

01121 01121 01121 01121 01121 01121

C63915 CB2225 CB4715 CB3925 ςΒ4325 CB3915

Α1 R 514 Α1 R516 Al R517 At R518 All R523 Al R524

315-0471-00 315-0392-00 315-0432-00 315-0102-00 315-0153-00 321-0318-00

RE S., FXD,CMP SN:470 ΟΗΜ,5%,0.25W RE S., FXD,C MP S N :3 .9 K ΟΗΜ ,5%,0.25W RE S., FXD,C MP SN:4 .3 K ΟΗΜ ,5%,0.25W RE S.,FXD,C MP S N:I K ΟΗΜ,5%,0.25W RE S.,FXD,C MP SN:15K ΟΗΜ,5%,0.25W RE S., FXD,FI LM :20 K ΟΗΜ,1%,0.125W

01121 01121 01121 01121 01121 91637

CB4715 CB3925 CB4325 CB1025 CB1535 MFF1816G20001 F

Al R525 Al R526 AlR527 Al R528 A111538 At R539

321-0322-00 315-0152-00 315-0472-00 315-0911-00 315-0512-00 315-0512-00

RE S ., FXD,FILM :22.1 K ΟΗΜ,1%,0.125W RE S., FXD,C MP SN:1 .5 K ΟΗΜ,5%,0.25W RE S., FXD,C MP SN:4 .7 K ΟΗΜ,5%,0.25W RES., FXD,C MP SN:910 ΟΗΜ,5%,0.25W RES., FXD,C MP SN:5 .1 Κ ΟΗΜ,5%,0.25W RES., FXD,C MP SN :5 .1 K ΟΗΜ,5%,0.25W

91637 01121 01121 01121 01121 01121

MFF1816G22101 F CB1525 CB4725 CB9115 C85125 CB5125

At R540 Al R541 Α111544 At R545 At R547 Al R548

315-0511-00 315-0511-00 315-0431-00 315-0102-00 315-0102-00 315-0102-00

RES., FXD,C MPSN :510 ΟΗΜ,5%,0.25W RES., FXD,C MPSN :510 ΟΗΜ,5%,0.25W RES., FXD,C MPSN :430 ΟΗΜ,5%,0.25W RE S., FXD,C MPSN:I K ΟΗΜ,5%,0.25W RE S., FXD,C MPSN:1 K ΟΗΜ,5%,0.25W RE S., FXD,C MPSN:I K ΟΗΜ,5%,0.25W

01121 01121 01121 01121 01121 01121

CB5115 CB5115 C84315 CB1025 CB1025 CB1025

At R549 At R555 At R556 At R558 Al R560 Al R561

315-0681-00 315-0821-00 315-0512-00 315-0512-00 315-0512-00 315-0512-00

RE S., FXD,C MP SN :680ON Μ,5%,0.25W RE S., FXD,CMP SN:820ON Μ,5%,0.25W RE S., FXD,CMP SN :5 .1 K ΟΗΜ ,5%,0.25W RE S., FXD,C MP SN:5 .1 K ΟΗΜ ,5%,0.25W RE S., FXD,C MP SN :5 .1 K ΟΗΜ ,5%,0.25W RE S., FXD,C MP SN:5 .1 K ΟΗΜ ,5%,0 .25W

01121 01121 01121 01121 01121 01121

C86815 CB8215 CB5125 CB5125 CB5125 CB5125

Α1 R 562 Al R564 Al R 565 Α111566 At R568 Al R569

315-0512-00 315-0202-00 315-0301-00 315-0511-00 315-0332-00 315-0432-00

RE S., FXD,C MP SN:5 .1 Κ ΟΗΜ,5%,0 .25W RE S., FXD,C MP SN:2 K ΟΗΜ ,5%,0 .25W RE S., FXD,C MP SN:3000NΜ,5%,0 .25W RE S ., FXD,C MP SN:5100ΗΜ ,5%,0.25W RE S., FXD,C MP SN:3 .3 K ΟΗΜ,5%,0.25 W RES., FXD,C MP SN:4 .3 K ΟΗΜ,5%,0 .25W

01121 01121 01121 01121 01121 01121

CB 5125 CB2025 CB 3015 C B 5115 C63325 CB4325

8- 1 4

315-0431-00 315-0820-00 315-0113-00 311-1245-00 315-0392-00 315-0432-00

RES., FXD,C MPSN :430O N Μ,5%,0.25W RE S., FXD,C MPS N :82O NΜ,5%,0.25W RE S., FXD,C MPSN:11 Κ ΟΗΜ,5%,0.25W RES.,VAR,N ONWI R :10K ΟΗΜ,10%,0 .50W RE S., FXD,C MP SN :3 .9 K ΟΗΜ,5%,0.25W RE S., FXD,C MP S N:4 .3 K ΟΗΜ,5%,0.25W

01121 01121 01121

Mfr P art

Number

REV ΜΑΥ 1983

Replaceable E lectrical P arts-2235

Te ktronix Se rial/ Model No . Code N ame & Description nt No . P art No . Eff Dsco nt Compone

Mfr

Mfr Part

Service

Nu mber

Al R571 Al R572 Al R573 Al R574 Al R576 Al R577

315-0222-00 315-0102-00 315-0222-00 315-0102-00 315-0561-00 315-0221-00

RE S., FXD,C MPSN:2 .2 K ΟΗΜ,5%,0.25W RE S., FXD,C MPSN:1 Κ ΟΗΜ,5%,0.25W RES., FXD,C MP SN :2 .2 K ΟΗΜ,5%,0.25W RES .,FXD,C MP SN : I K ΟΗΜ,5%,0.25W RES., FXD,C MP SN :5600HM ,5%,0.25W RES., FXD,C MP SN :220 ΟΗΜ ,5%,0.25W

01121 01121 01121 01121 01121 01121

CB2225 CB1025 CB2225 CB1025 CB5615 CB 2215

Al R578 Al R580 Al R586 Al R645 At R646 Al R647

315-0561-00 315-0181-00 315-0101-00 315-0201-00 311-1563-00 315-0102-00

RE S., FXD,C MP SN:5600HM ,5%,0.25W RE S ., FXD,C MP SN:1800HM ,5%,0.25W RE S., FXD,C MP SN:t000HM ,5%,0.25W RE S., FXD,C MP SN:2000HM ,5%,0.25W RES .,VAR,NONW I R:1 Κ ΟΗΜ,20%,O .50W RE S., FXD,C MP SN:1 Κ ΟΗΜ,5%,0.25W

01121 01121 01121 01121 73138 01121

CB5615 C B1815 CB1015 CB2015 91-85-0 CB1025

Α1 R648 Al R649 Α1 R673 Al R676 At R756 Al R757

315-0512-00 315-0512-00 315-0472-00 315-0471-00 315-0912-00 315-0202-00

RE S., FXD,C MP SN:5 .1 Κ ΟΗΜ,5%,0.25W RE S., FXD,C MPSN:5 .1 K ΟΗΜ,5%,0.25W RE S., F XD,C MPSN:4 .7 K ΟΗΜ,5°%,0 .25W RE S., FXD,C MPSN:4700HM ,5%,0.25W RES., FXD,C MP S N :9 .1 K ΟΗΜ,5%,0.25W RES., FXD,C MP S N :2 K 0NΜ,5%,0.25W

01121 01121 01121 01121 01121 01121

CB5125 C85125 C B4725 CB4715 C B9125 CB2025

Al R758 Al R759 Α1 R760 At R761 Al R762 Al R764

321-0343-00 321-0267-00 311-1565-00 321-0210-00 315-0153-00 315-0221-00

RES., FXD,F I LM :36.5 K ΟΗΜ,1%,0.125W RES., FXD,FI LM :5 .9K ΟΗΜ,1%,0.125W RES.,VAR,NONW I R :250 ΟΗΜ,20%,0 .50W RES ., FXD,FI LM :1 .5 K ΟΗΜ,1%,0.125 W RES ., FXD,C MP S N:15K ΟΗΜ,5%,0.25W RES., FXD,C MP S N :2200HM ,5%,0.25W

91637 91637 73138 91637 01121 01121

MFF1816G36501 F MFF1816G59000 F 91-87-0 MFF1816G15000 F CB1535 CB2215

Al R766 Al R768 Α1 R770 Al R773 Al R775 Al R776

321-0109-00 321-0158-00 315-0470-00 321-0182-00 323-0310-00 321-0205-00

RE S., FXD,FI LM :1330 HM ,1%,0.125 W RE S., FXD,FI LM :432 ΟΗΜ ,1%,0.125W RE S., FXD,CMP S N:47 ΟΗΜ,5%,0.25W RE S., FXD,FI LM :7680HM ,1%,0.125W RE S., FXD, FI LM :16 .5 K ΟΗΜ,1%,0.50W RE S., FXD,FI LM :1 .33K ΟHΜ ,1%,0.125 W

91637 91637 01121 91637 75042 91637

MFF1816G133 ROF MFF1816G432 R OF CB4705 MFF1816G768 R OF CECTO-1652 F MFF1816G13300 F

01121 01121 01121 91637 91637

CB4705 CB1015 CB2435 CB4705 MFF1816G14700F MFF1816G12100F

315-0470-00 RE S., FXD,CMPSN:47 ΟΗΜ,5%,0.25W Α1 R777 01121 315-0101-00 RE S., FXD,C MPS N:100 ΟΗΜ,5%,0. 25W Al R778 315-0243-00 RE S., FXD,C MP SN:24K 0ΗΜ ,5%,0.25W Al R779 315-0470-00 RE S., FXD,C MP S N :470 HM ,5%,0.25W Al R780 321-0209-00 RE S., FXD,FI LM :1 .47K ΟΗΜ,1%,0.125W Al R782 321-0201-00 RES., F XD, FI LM :1 .21 K ΟΗΜ,1%,0.125W At R783 Al R785 AllR786 Α1R787 Al R788 Al R789 Α1 R792

323-0310-00 321-0205-00 315-0470-00 315-0101-00 315-0243-00 321-0263-00

RES., FXD, FI LM :16.5K 0ΗΜ ,1%,0.50W RES., FXD,FI LM :1 .33K ΟΗΜ,1%,0.125 W RES., FXD,C MP SN:47 ΟΗΜ,5%,0.25W RE S., FXD,C MP SN:1000HM ,5%,0.25W RE S., FXD,C MP S N:24K 0HΜ ,5%,0.25W RE S., FXD,FI LM :5 .36K ΟΗΜ,1%,0.125 W

75042 91637 01121 01121 01121 91637

CECTO-1652F MFF1816G13300 F CB4705 CB1015 CB2435 MFF1816G53600 F

Al R793 Al R796 All R797 Α1 R799 Al R800 Α1 R804

321-0361-00 315-0100-00 315-0100-00 315-0100-00 315-0682-00 315-0102-00

RE S., FXD,FI LM :56.2 K ΟΗΜ,1%,0.125 W RE S., FXD,C MPS N :100 HM ,5%,0.25W RE S., FXD,CMPS N:10 ΟΗΜ,5%,0.25W RE S., FXD,CMPS N:10 0ΝΜ ,5%,0 .25W RE S., FXD,C MPSN:6 .8K 0ΗΜ ,5%,0.25W RE S., FXD,C MPS N :1 Κ ΟΗΜ,5%,0.25W

91637 01121 01121 01121 01121 01121

MFF1816G56201 F CB1005 CB1005 CB1005 CB6825 CB1025

Α1 R805 Al R810 Α1 R 814 Al R818 Α1 R820 A1 R822

315-0562-00 315-0682-00 315-0102-00 315-0302-00 315-0332-00 301-0512-00

RES., FXD,C MPSN :5 .6 K ΟΗΜ,5%,0.25W RES., FXD,C MP SN :6 .8 K ΟΗΜ,5%,0.25W RES., FXD,C MP SN:1 Κ ΟΗΜ,5°%,0 .25W RES., FXD,C MP SN:3 K ΟΗΜ ,5%,0.25W RES., FXD,C MP SN:3 .3 K ΟΗΜ,5%,0.25W RE S., FXD,C MP SN:5 .1 Κ 0ΝΜ ,5%,O.50W

01121 01121 01121 01121 01121 01121

CB5625 CB6825 CB1025 CB3025 CB3325 ΕΒ 5125

REV ΜΑΥ 1983

8 -1 5

R eplaceable

E lect rical P arts-2235 Service

Tek tronix Se rial/ Model No . Component No . Part No . Eff Dscont Co

N ame & Description

Mfr

de

Mfr Part

Nu mber

Al R823 Al R825 Al R826 Α1 R 828 Al R830 Α 119832

301-0512-00 315-0750-00 315-0104-00 315-0560-00 321-0212-00 321-0222-00

RE S., FXD,C MPSN :5 .1 K ΟΗΜ,5%,0.50W RE S., FXD,C MPSN:75 OHM,5%,0.25W RE S., FXD,C MPSN:100K OHM,5%,0 .25W RE S., FXD,CMPSN :56 OHM,5%,0 .25W RE S., FXD,FI LM :1 .58K ΟΗΜ,1%,0.125 W RES.,FXD,FI LM :2 K ΟΗΜ,1%,0.125 W

01121 01121 01121 01121 91637 91637

ΕΒ 5125 C87505 CB1045 CB5605 MFF1816G15800 F MFF1816G20000 F

Al R834 Al R835 Al R836 Al R840 Al R841 Al R842

315-0101-00 321-0228-00 315-0102-00 315-0561-00 322-0322-00 315-0241-00

RE S., FXD,C MP SN :1000ΗΜ ,5%,0.25W RE S., FXD,FI LM :2 .32K ΟΗΜ,1%,0.125 W RES.,FXD,C MP SN:I K OHM,5%,0 .25W RES., FXD,C MP SN :5600HM ,5%,0.25W RES., FXD,FI LM :22.1 K ΟΗΜ,1%,0.25W RES., FXD,C MP SN :2400HM ,5%,0.25W

01121 91637 01121 01121 24546 01121

CB1015 MFF1816G23200F CB1025 CB5615 NA60D2212F CB2415

Al R844 Al R845 Al R849 Al R851 Al R852 Al R853

315-0104-00 315-0472-00 315-0102-00 311-1558-00 315-0203-00 315-0244-00

RE S., FXD,C MP SN :100K OHM,5%,0 .25W RE S., FXD,C MPSN:4 .7 K OHM,5%,0 .25W RE S., FXD,CMPSN:1 ΚΟΝΜ ,5%,0.25W RE S.,VAR, NON WI R :20K ΟHΜ,20%,0 .50W RE S., FXD,CMPSN:20K OHM,5%,0 .25W RE S., FXD,CMP SN:240 K OHM,5%,0 .25W

01121 01121 01121 73138 01121 01121

C81045 CB4725 CB1025 91-80-0 CB2035 CB2445

Al R854 Α1 R 858 Al R860 Al R870 Al R871 Al R872

315-0472-00 315-0511-00 315-0625-00 311-1555-00 315-0102-00 315-0223-00

RE S., FXD,CMP SN:4 .7 K OHM,5%,0 .25W RE S., FXD,C MP SN:510 OHM,5%,0 .25W RE S., FXD,C MP SN :6 .2 M OHM,5%,0 .25W RES.,VAR,NONW I R :100 K 0ΗΜ ,20%,0 .5W RES., FXD,C MP SN:1 Κ OHM,5%,0 .25W RES ., FXD,C MP SN :22K OHM,5%,0.25W

01121 01121 01121 73138 01121 01121

CB4725 CB5115 CB6255 91-77-0 CB1025 CB2235

Al R873 At R874 Α1 R875 All R877 AlR879 Al R885

315-0513-00 311-1555-00 315-0102-00 315-0102-00 315-0514-00 315-0912-00

RES., FXD,C MP SN :51 Κ OHM,5%,0.25W RES.,VAR,NONWI R:100 K ΟΗΜ,20%,0.5 W RES., FXD,C MP SN:1 Κ OHM,5%,0 .25W RES.,FXD,C MPSN:I K OHM,5%,0 .25W RES., FXD,C MPSN:510K OHM,5%,0 .25W RES., FXD,C MPS N :9 .1 K 0ΗΜ ,5%,0.25W

01121 73138 01121 01121 01121 01121

CB5135 91-77-0 CB1025 CB1025 CB5145 CB9125

Al R886 Al R888 A1 R 889 Α 119890 Al R891 Al R892

315-0184-00 301-0514-00 301-0514-00 301-0514-00 301-0514-00 301-0514-00

RE S., FXD,C MPSN :180 K RE S., FXD,C MP SN:510 K RE S., FXD,CMP SN:510 K RE S., FXD,CMP SN:510 K RE S., FXD,C MP SN:510 K RE S., FXD,C MP SN:510 K

01121 01121 01121 01121 01121 01121

CB1845 ΕΒ 5145 ΕΒ 5145 ΕΒ 5145 ΕΒ5145 ΕΒ5145

Al R893 At R894 Al R905 All R906 Al R 907 Al R908

311-1933-00 301-0514-00 301-0823-00 301-0823-00 308-0843-00 315-0302-00

RES .,VAR,NONW I R:PNL ,5 M ΟΗΜ,10%,0 .50W RE S., FXD,C MP SN :510 K ΟΗΜ,5%,0.50W RES., FXD,C MP SN :82K ΟΗΜ,5%,0 .50W RES., FXD,C MP SN :82K ΟΗΜ,5%,0.50W RES., FXD WW :0 .20HM ,5%,1 . ΟW RES., FXD,C MPSN:3K ΟΗΜ,5%,0.25W

01121 01121 01121 01121 91637 01121

17 ΜΟ 95 ΕΒ5145 ΕΒ8235 ΕΒ 8235 RS l AR2000 JT/ R CB3025

Al R910 Al R912 Al R913 Al R914 Al R915 Al R916

315-0301-00 321-0150-00 321-0289-00 321-0378-00 321-0289-00 315-0514-00

RE S., FXD,C MPSN:3000HM ,5%,0.25W RE S., F XD,FI LM :3570HM ,1%,0 .125 W RE S., FXD, FILM : 1O Κ ΟΗΜ,1%,0.125 W RE S., F XD, FI LM :84.5 K ΟΗΜ,1%,0 .125 W RES .,FXD,FI LM :10K ΟΗΜ,1%,0.125 W RE S., F XD,C MP SN:510 K OHM,5%,0.25W

01121 91637 91637 91637 91637 01121

CB3015 MFF1816G357 ROF MFF1816G10001 F MFF1816G84501 F MFF1816G10001 F CB5145

Α1 R917 Al R919 Al R921 Al R922 Α1 R925 A1 R926

315-0303-00 315-0113-00 315-0303-00 315-0203-00 315-0124-00 303-0154-00

RE S., FXD,C MP SN:30K OHM,5%,0.25W RE S., FXD,C MP SN:11 Κ OHM,5%,0.25W RE S., FXD,C MP SN:30K OHM,5%,0.25W RES., FXD,C MP SN:20K OHM,5%,0 .25W RES., FXD,C MP SN:120K OHM,5%,0 .25W RES., FXD,C MP SN:150K ΟΗΜ,5%,1 W

01121 01121 01121 01121 01121 01121

CB3035 CB1135 CB3035 C B 2035 CB1245 G B 1545

8- 1 6

OHM,5%,0 .25W ΟΗΜ ,5%,0.50W 0ΗΜ ,5%,0.50W ΟΗΜ ,5%,0.50W ΟΗΜ,5%,O.50W ΟΗΜ ,5%,0.50W

REV ΜΑΥ 1983

R eplaceable E lectrical Parts-2235

Service

Te ktronix Se rial/ Model No . Component No. P art No . Eff Dscont N ame & Descriptio n Code

Mfr

Al R927 Al R928 Al R929 Al R930 Al R934 Al R935

315-0104-00 315-0682-00 315-0302-00 315-0104-00 308-0441-00 315-0121-00

RE S., FXD,C MP S N :100 K ΟΗΜ,5%,0.25W RE S., FXD,C MP SN:6.8 K ΟΗΜ,5%,0.25W RES.,FXD,C MP S N :3K ΟΗΜ,5%,0.25W RE S., FXD,C MP SN:100 K ΟΗΜ,5%,0.25W RE S., FXD,WW :30HM ,5%,3W RE S., FXD,C MP S N:120 ΟΗΜ,5%,0 .25W

01121 01121 01121 01121 91637 01121

CB 1045 CB 6825 CB 3025 CB 1045 CW2B-3 ROOJ CB 1215

Al R937 All R938 Al R939 All R940 A1 R941 Al R942

321-0234-00 311-1248-00 321-0304-00 315-0203-00 315-0102-00 315-0102-00

RE S., FXD, FILM : 2.67K ΟΗΜ,1%,0.125 W RE S.,VA R, NONW I R:5000HM ,10%,0 .50W RE S., FXD,FI LM :14 .3 K ΟΗΜ,1%,0.125 W RE S., FXD,C MP SN:20K ΟΗΜ ,5%,0.25W RE S., FXD,C MP S N:I K 0N Μ,5%,0.25W RES.,FXD,C MP SN:I K ΟΗΜ,5%,0.25W

91637 73138 91637 01121 01121 01121

MFF1816G26700 F 72-23-0 MFF1816G14301 F CB 2035 CB 1025 CB 1025

Α18943 Al R944 Al R945 Al R946 Al R947 Al R949

301-0472-00 315-0102-00 301-0622-00 315-0470-00 315-0470-00 308-0677-00

RE S ., FXD,C MP SN:4 .7 K ΟΗΜ ,5%,0.50W RES .,FXD,C MP S N:I K ΟΗΜ,5%,0.25W RE S., FXD,C MP SN:6 .2 K ΟΗΜ ,5%,0.50W RE S., FXD,C MP S N :470 HM ,5%,0.25W RE S., FXD,C MP SN:470 HM ,5%,0.25W RES.,FXD,WW :1 ΟΗΜ ,5%,2W

01121 01121 01121 01121 01121 75042

ΕΒ 4725 CB 1025 ΕΒ 6225 CB4705 CB4705 BWH-1 R000J

Al R964 Al R966 A1 R971 All R976 All R978 All R9272

307-0106-00 307-0106-00 308-0847-00 315-0512-00 315-0512-00 301-0121-00

RE S., FXD,C MP SN:4 .70HM ,5%,0.25W RE S., FXD,C MP SN:4 .70HM ,5%,0.25W RE S., FXD,WW :0 .620 NΜ,5%,1 W RE S., FXD,C MP SN:5 .1 K ΟΗΜ ,5%,0.25W RE S ., FXD,C MP SN:5 .1 K ΟΗΜ ,5%,0.25W RE S ., FXD,C MP SN:1200HM ,5%,O.50W

01121 01121 75042 01121 01121 01121

CB47G5 CB47G5 ΒW20-0.62ΟΗΜ CB5125 CB5125 ΕΒ 1215

01121 50157 31918 54937 80009

ΕΒ 1215 2D1595 ΝΕ 15/F2U103EE OB D OB D 120-1347-00

22526 22526 80009 80009

120-1348-00 120-1348-01 48283-029 48283-029 155-0274-00 155-0274-00

Al R9273 301-0121-00 RE S ., FXD,C MP SN:1200HM ,5%, 0.50W Al RΤ236 307-0125-00 RE S .,THERM AL:500 ΟΗΜ,1 Ο%,25 DE G C AlS901 260-1849-00 SW ITCH, PU SH:D PDT,4A,250VAC,W/BRKT ΑlΤ390 120-1401-00 X FMR,TRIG : ΑlΤ 90620462 120-1439-00 TRANSFORMER, RF : ENERGY STORAG E ΑlΤ944 120-1347-00 TRANSFORMER, RF : DRIVER SATUR ATI NG POT CO RE ΑlΤ 94880009 120-1348-00 Β010100 8010379 X FMR,PWR ,SDN&S U:H IGH VOLTAGE ΑlΤ94880009 120-1348-01 8010380 X FMR,PWR ,SDN&S U:H IGH VOLTAGE ΑlΤΡ940 131-0589-00 TERM I NAL,PI N:0 .46 L Χ 0.025 SQ Α l ΤΡ950 131-0589-00 TERM I NAL,PI N:0 .46 L Χ 0.025 SO A1 U130 155-0274-00 M ICROCIRCUIT,LL VERTICA L PREAMP A1 U180 155-0274-00 M ICROCIRCUIT,LL VERTICA L PREAMP Al U22501295 156-0067-00 M ICROCIRCUIT,LL OPERATIO NAL AMPLI FI ER Al U310 156-0534-00 M ICR OCIRCUIT,LI : DUAL DI FF A MPL,14 LD DI P 80009 Al U33580009 156-0534-00 M ICROCIRCUIT,LI : DUAL DI FF AMPL ,14 LD DI P Al U350 156-1294-00 M ICR OCI R CU IT, LI :FIVE ΝΡΝ TRANSISTOR A RRAY Α1 U426 156-0158-00 M ICROCIRCUIT,LI : DUAL OPER ATIO NAL A MPLI FI ER Al U46080009 156-0534-00 MICROCIRCUIT, LI : DUAL DI FF AMPL ,14 LD DI P Al U48080009 156-1641-00 M ICROCIRCUIT,DI: ECL,Q UAD 2-INPUT NOR GATE Al U50204713 156-1713-00 M ICROCIRCUIT,D L ECL RE TRIG MONOSTAGE Al U504 156-1335-00 M ICROCIRCUIT,DI : DUAL RETRIG RE SET MONO MV Al U50604713 156-1639-00 M ICROCIRCUIT,DI:DUAL D M ASTER SLAVE Al U53280009 156-1641-00 M ICROCIRCUIT,DI: ECL,Q UAD 2-INPUT NOR GATE Α1 U537 156-0721-02 M ICROCIRCUIT,DI:Q UAD 2-IN NAND SCHM ITT TRI Al U540 156-0388-03 M ICROCIRCUIT,DI: DUAL D FLI P-FLOP Al U555 156-0728-02 M ICROCIRCUIT,DI:Q UAD 2 I PUT S ΤΑΤΕ W/OC Al U565 01295 156-0384-02 M ICROCIRCUIT,DI:Q UAD 2-ΙΝΡ NAND GATE Al U758 156-1149-00 MICROCIRCUIT, LL OPERATIO NAL A MP,JFET I NPUT Al U930 156-1627-00 MICROCIRCUIT, LI :POWER WIDTH MOD ULATED CONT Al U975 152-0806-00 SEM ICOND DEV ICE:HV MULTI PL I ER ,4 K VAC I NPUT

REV ΜΑΥ 1983

Mfr P art N umber

M IC ROA741C P 80009 18324

07263 04713 07263 80009 27014 01295 12969

156-0534-00 156-0534-00 156-1294-00 M C1458N 156-0534-00

156-1641-00 M C10198 96LS02 M ClOH131 156-1641-00 SN74 LS132 N DS 74LS74A 156-0728-02 SN74 LS03 GLEA134 TL594C N CMX647

8- 1 7

R eplaceab le E lect rical Parts-2235 Service

Component No .

Te ktronix Part No.

Serial/ Model No . E ff Dscont

Mfr

N ame & Description

Code

Mfr P art

04713 04713 80009 80009 14552 80009

SZG35009 K3 SZG20012 152-0508-00 152-0508-00 TD3810983 152-0514-00

Numbe r

Al VR 200

Al VR 645 Al VR 712 Al VR 764 Al VR 782 Al VR 828

152-0149-00 152-0317-00 152-0508-00 152-0508-00 152-0243-00 152-0514-00

S EM ICON D SEM ICO N D SEM ICON D SEM ICO N D SEM ICON D SEM ICON D

Al VR 925 Al VR 935 Al VR 943 Α1W282 Α1W283 Α1W310

152-0166-00 152-0255-00 152-0317-00 131-0566-00 131-0566-00 131-0566-00

SEM ICOND DEVICE : ΖΕΝ ER ,0 .4W,6 .2 V,5% SEM ICOND DEVICE : ΖΕΝ ER ,0 .4W,51 V,5 SEM ICOND DEVICE : ΖΕΝ ER ,0 .25W,6 .2 V,5% BU S CO NDUCTOR:D UMMY RE S,2.375,22 AWG BU S CO N DUCTOR:D UMMY RE S,2.375,22 AWG BU S CO NDUCTOR:D UMMY RE S,2.375,22 AWG

04713 80009 04713 57668 57668 57668

SZ11738 RL 152-0255-00 SZG20012 JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO

Α1 W 335 AI W350 Α1 W351 Α1 W408 Α 1 W410 Α 1 W419

131-0566-00 131-0566-00 131-0566-00 131-0566-00 131-0566-00 131-0566-00

BU S BU S BU S BU S BU S BU S

CO ND UCTOR:D UMMY CO NDU CTO R :D UMMY CO NDUCTOR:D UMMY CO ND UCTOR:D UMMY CO NDUCTOR:D UMMY CO NDUCTOR:D UMMY

RE S,2.375,22 RE S,2.375,22 RE S,2.375,22 RE S,2.375,22 RE S,2.375,22 RE S,2.375,22

AWG AWG AWG AWG AWG AWG

57668 57668 57668 57668 57668 57668

JWW-0200ΕO JWW-0200Ε O JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO

Α1 W428 Α1 W429 Α1 W494 Α1 W535 Α1 W537 Α1 W538

131-0566-00 131-0566-00 131-0566-00 131-0566-00 131-0566-00 131-0566-00

BU S BU S BU S BU S BU S BU S

CO NDUCTOR:D UMMY CO NDUCTORDUMMY CO NDUCTORDUMMY CO NDUCTORDUMMY CO NDUCTORDUMMY CO NDUCTORDUMMY

RE S,2.375,22 RE S,2.375,22 RE S,2.375,22 RE S,2.375,22 RE S,2.375,22 RE S,2.375,22

AWG AWG AWG AWG AWG AWG

57668 57668 57668 57668 57668 57668

JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO

Α1 W555 Α1 W556 Α1 W558 Α1 W560 Α1 W570 Α1 W582

131-0566-00 131-0566-00 131-0566-00 131-0566-00 131-0566-00 131-0566-00

BU S BU S BU S BU S BU S BU S

CO NDUCTOR:D UMMY CO ND UCTO R :D UMMY CO N DUCTOR :D UMMY CO ND UCTOR :D UMMY CO NDUCTOR MUMMY CO ND UCTOR :D UMMY

RE S,2.375,22 RE S,2.375,22 RE S,2.375,22 RE S,2.375,22 RE S,2.375,22 RE S,2.375,22

AWG AWG AWG AWG AWG AWG

57668 57668 57668 57668 57668 57668

JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO

A l W590 Al W591 AI W592 Al W602 Α1 W603 Α1 W635

131-0566-00 131-0566-00 131-0566-00 131-0566-00 131-0566-00 131-0566-00

BU S BU S BU S BU S BU S BU S

CO ND UCTOR DUMMY CO N DUCTOR DUMMY CO N D UCTOR :D UMMY CO N D UCTOR DUMMY CO N D UCTO R :D UMMY CO N DUCTOR DUMMY

RE S,2.375,22 RE S,2.375,22 RE S,2.375,22 RE S,2.375,22 RE S,2.375,22 RE S,2.375,22

AWG AWG AWG AWG AWG AWG

57668 57668 57668 57668 57668 57668

JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO JWW-0200Ε O JWW-0200ΕO

Α1 W649 Α 1 W732 Α1 W770 Α1 W780 Α1 WB85 Α1 W954

131-0566-00 131-0566-00 131-0566-00 131-0566-00 131-0566-00 131-0566-00

BU S BU S BU S BU S BU S BU S

CO NDUCTOR :D UMMY CO NDUCTOR :D UMMY CONDUCTO R :D UMMY CONDUCTOR:D UMMY COND UCTO R :D UMMY CONDUCTOR:D UMMY

RE S,2.375,22 RES,2.375,22 RES,2.375,22 RES,2.375,22 RES,2.375,22 RES,2.375,22

AWG AWG AWG AWG AWG AWG

57668 57668 57668 57668 57668 57668

JW W-0200 Ε O JWW-0200ΕO JWW-0200Ε O JWW-0200ΕO JWW-0200Ε O JWW-0200ΕO

Α1 W955 Α1 W956 Α1 W959 A l W960 A1 W961 AI W964

131-0566-00 131-0566-00 131-0566-00 131-0566-00 131-0566-00 131-0566-00

BU S BU S BU S BU S BU S BU S

CONDU CTO R :D UMMY COND UCTOR DUMMY CONDUCTOR DUMMY COND UCTO R DUMMY CONDUCTOR DUMMY CONDU CTO R D UMMY

RES,2.375,22 AWG RES,2.375,22 AWG RES,2.375,22 AWG RES,2.375,22 AWG RES,2.375,22 AWG RES,2.375,22 AWG

57668 57668 57668 57668 57668 57668

JWW-0200Ε O JWW-0200ΕO JWW-0200Ε O JWW-0200ΕO JWW-0200Ε O JWW-0200 Ε O

Al W965 A1 W968 Α1 W971 Α1 W972 Α1 W974 Α1 W975

131-0566-00 131-0566-00 131-0566-00 131-0566-00 131-0566-00 131-0566-00

BU S BU S BU S BU S BU S BU S

CONDUCTOR:D UMMY CONDUCTOR:D UMMY CONDUCTOR:D UMMY CONDUCTOR:D UMMY CONDUCTOR:D UMMY CO NDUCTOR:DUMMY

RES,2.375,22 AWG RES,2.375,22 AWG RES,2.375,22 AWG RES,2.375,22 AWG RES,2.375,22 AWG RES,2.375,22 AWG

57668 57668 57668 57668 57668 57668

JWW-0200Ε O JWW-0200ΕO JWW-0200Ε O JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO

8-1 8

DEVICE : ΖΕΝER ,0 .4 W,10V,5 % DEVICE : ΖΕΝER ,0 .25W,6 .2 V,5% DEV IC E:Z ENER ,0 .4 W,12.6 V,5% DEV IC E :Z ENER ,0 .4W,12.6 V,5% DEV IC E:Z ENER ,0 .4W,15V,5% DEV IC E:Z ENER ,0 .4W,10V,1 %

REV ΜΑΥ 1983

R eplaceable

Tektronix Serial/ Model No . Co Dscont Component P art No . Eff No .

E lectrical P arts-2235

Mfr

N ame & Desc ription

de

M fr Part Nu mber

Al W976 Al W977 AI W979 Α1 W 991 Α1 W 992 Α 1 W993

131-0566-00 131-0566-00 131-0566-00 131-0566-00 131-0566-00 131-0566-00

BU S BU S BU S BU S BU S BU S

RE S,2.375,22 RES,2.375,22 RES,2.375,22 RES,2.375,22 RES,2.375,22 RES,2.375,22

AWG AWG AWG AWG AWG AWG

57668 57668 57668 57668 57668 57668

JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO JWW-0200 ΕO

Al W995 Α1 W997 Α1 W998 Α1 W999 Al W9000 AI W9001

131-0566-00 131-0566-00 131-0566-00 131-0566-00 131-1817-00 131-1817-00

BU S CO NDUCTO R:D UMMY RES,2.375,22 BU S CO ND U CTORMUMMY RES,2.375,22 BU S CO NDUCTO R:D UMMY RE S,2.375,22 BU S CO ND U CTOR:D UMMY RE S,2.375,22 L I NK ,T ERM CO NNE:22 AWG,2.25" LONG LI NK ,T ERM CO NNE:22 AWG,2.25" LONG

AWG AWG AWG AWG

57668 57668 57668 57668 80009 80009

JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO 131-1817-00 131-1817-00

Α1 W 9041 Α1 W 9191

195-7745-00 195-7747-00

LEAD,ELECT RICAL:18 AWG,3.5 L,8-20 LEAD,ELECTRICAL : 18 AWG,3.5 L ,8-19

80009 80009

195-7745-00 195-7747-00

REV ΜΑΥ 1983

CO NDUCTOR:D UMMY CO ND U CTOR:D UMMY CO NDUCTOR:D UMMY CO ND U CTOR:DUMMY CO NDUCTOR:DUMMY CO N DUCTO R:DUMMY

Service

8-1 9

R eplaceable E lectrical Parts-2235 Service

Component No .

Tektronix Part No .

Α2

670-7561-00

Α2ΑΤ 1 Α2ΑΤ2 Α2ΑΤ51 Α2ΑΤ 52

Serial/Model No . E ff Dscont

N ame & Description

Mfr

Code

Mfr P art

CKT B OARD ASSY :ATTENUATOR

80009

670-7561-00

307-1014-06 307-1013-00 307-1014-06 307-1013-00

ATTENUATOR,FXD :100 ATTENUATOR,FXD :10X ATTENUATOR,FXD :100 ATTENUATOR,FXD :10X

80009 80009 80009 80009

A2C2 A2C3 A2C6 Α2C9 A2C10 A2C13

307-1014-06 307-1013-00 307-1014-06 307-1013-00

285-1132-02 281-0182-00 283-0000-00 281-0770-00 283-0028-00 281-0862-00

CAP., FXD,PLASTIC:0 .019UF,10%,600V CAP.,VAR,PLSTC :1 .8-10PF,500V CAP.,FXD,CER DI :0 .001UF,+100-0%,500V CAP.,FXD,CER DI :0.001UF,20%,100V CAP.,FXD,CER DI :0.0022UF,20%,50V CAP.,FXD,CER DI :0.001UF,+80-20%,100V

80009 80031 59660 72982 59660 20932

A2C17 A2C21 A2C26 A2C27 A2C30 A2C35

285-1132-02 2805D1 R81 O BH02FO 831610Y5U0102P 8035D9AADX5R102M 0805585Y5SO222M 401-ES-100AD102Z

281-0862-00 281-0773-00 281-0158-00 281-0893-00 281-0775-00 281-0862-00

CAP.,FXD,CER CAP.,FXD,CER CAP.,VAR,CER CAP.,FXD,CER CAP.,FXD,CER CAP.,FXD,CER

DI :0 .001UF,+80-20%,100V DI :0 .01UF,10%,100V D1 :7-45PF,50V DI :4 .7PF,+ / -0.5PF,100V DI :0 .1UF,20%,50V DI :0.001UF,+80-20%,100V

20932 04222 73899 04222 04222 20932

A2C38 A2C52 A2C53 A2C56 A2C59 A2C60

401-ES-100AD102Z SA201C103KAA DVJ-5006 MA101A4R7DAA ΜΑ205Ε104ΜΑΑ 401-ES-100AD102Z

281-0862-00 285-1132-02 281-0182-00 283-0000-00 281-0770-00 283-0028-00

CAP.,FXD,CER DI :0 .001UF,+80-20%,100V CAP.,FXD,PLASTIC :0 .019UF,10%,600V CAP.,VAR,PLSTC :1 .8-10PF,500V CAP.,FXD,CER DI :0 .001UF,+100-0%,500V CAP.,FXD,CER DI :0 .001UF,20%,100V CAP.,FXD,CER DI :0 .0022UF,20%,50V

20932 80009 80031 59660 72982 59660

A2C63 A2C67 A2C71 A2C76 A2C77 A2C80

401-ES-100AD102Z 285-1132-02 2805D1 R810BH02F0 831610Y5U0102P 8035D9AADX5R102M 0805585Y5SO222M

281-0862-00 281-0862-00 281-0773-00 281-0158-00 281-0893-00 281-0775-00

CAP.,FXD,CER CAP.,FXD,CER CAP.,FXD,CER CAP.,VAR,CER CAP.,FXD,CER CAP.,FXD,CER

DI :0.001UF,+80-20%,100V DI :0.001UF,+80-20%,100V DI :0 .01UF,10%,t00V D1 :7-45PF,56V DI :4 .7PF, +/-0 .5PF,t00V DI :0 .1 UF,20%,50V

20932 20932 04222 73899 04222 04222

A2C85 A2C88 A2C90 A2C91 A2C93 A2C94

401-ES-100AD102Z 401-ES-100AD102Z SA201C103KAA DVJ-5006 MA101A4R7DAA ΜΑ205Ε104ΜΑΑ

281-0862-00 281-0862-00 290-0523-00 290-0523-00 290-0776-00 281-0862-00

CAP.,FXD,CER DI :0 .001UF,+80-20%,100V CAP.,FXD,CER DI :0.001UF,+80-20%,100V CAP.,FXD,ELCTLT :2 .2UF,20%,20V CAP., FXD, ΕLCTLT :2 .2UF,20%,20V CAP.,FXD,ELCTLT :22UF,+50-10%,10V CAP.,FXD,CER DI :0 .001UF,+80-20%,100V

A2C96 A2C97 A2CR7 A2CR18 A2CR57 A2CR68

20932 20932 56289 56289 55680 20932

401-ES-100AD102Z 401-ES-100AD102Z 196D225X0020HA1 196D225X0020HA1 ULA1A220TEA 401-ES-100AD102Z

290-0776-00 281-0862-00 152-0324-00 152-0141-02 152-0324-00 152-0141-02

CAP.,FXD,ELCTLT :22UF,+50-10%,10V CAP .,FXD,CER DI :0 .001UF,+80-20%,100V SEMICOND DEVICE : SILICON,35V,100MA SEMICOND DEVICE : SILICON,30V,150MA SEMICOND DEVICE : SILICON,35V,100MA SEMICOND DEVICE : SILICON,30V,150MA

Α2Ε90 Α2Ε91 Α21-93 Α21-96 A2Q13 Α2015

55680 20932 03508 01295 03508 01295

ULA1A220TEA 401-ES-100AD102Z DE103 1 N4152R DE103 1 N4152R

276-0532-00 276-0532-00 120-0382-00 120-0382-00 151-1124-00 151-0711-00

SHIELDING BEAD, : SHIELDING BEAD, : XFMR,TOROID :14 TURNS,SINGLE XFMR,TOROID :14 TURNS,SINGLE TRANSISTOR :JFE,N-CHAN,SI,SEL TRANSISTOR : SILICON,NPN

02114 02114 80009 80009 22229 04713

Α2018 A2Q63 A2Q65 Α2068 A2R2 A2R3

56-590-65/4Α6 56-590-65/4Α6 120-0382-00 120-0382-00 F2942 SPS8224

151-0711-00 151-1124-00 151-0711-00 151-0711-00 317-0105-00 321-1731-00

TRANSISTOR : SILICON,NPN TRANSISTOR :JFE,N-CHAN,SI,SEL TRANSISTOR : SILICON,NPN TRANSISTOR : SILICON,NPN RES .,FXD,CMPSN :1 Μ ΟΗΜ,5%,0.125W RES.,FXD,FILM :500K ΟΗΜ,1%,0.125W

04713 22229 04713 04713 01121 24546

SPS8224 F2942 SPS8224 SPS8224 ΒΒ 1055 NA4D5003F

8-20

Number

REV ΜΑΥ 1983

R eplaceable E lectrical P arts-2235

Te ktronix

Serial/Model No .

Code N ame & Descri ption P art No . Eff Dsco nt Component No . A2 R4 A2 R5 A2 R6 A2 R7 A2 R8 A2 R 9

317-0056-00 321-1731-00 317-0474-00 315-0160-00 315-0220-01 315-0112-00

RE S., FXD,C MPS N:5 .6 ΟΗΜ,5%,0.125 W RE S., FXD,FI LM :500 K ΟΗΜ ,1%,0.125W RE S., FXD,C MPS N :470K ΟΗΜ,5%,0.125W RE S., FXD,C MPSN :16 ΟΗΜ,5%,0.25W RE S., FXD,C MPSN :22 ΟΗΜ,5%,0.25W RE S., FXD,C MPSN :1 .1 Κ ΟΗΜ,5°%,0 .25W

311-1559-00 RES.,VAR,N O NW I R:1OΚ ΟΗΜ,20%,0.50W Α21410 315-0153-00 RES., FXD,C MPSN :15K ΟΗΜ,5%,0 .25W A2 R11 315-0101-00 RES., FXD,C MP SN :100 ΟΗΜ,5%,0. 25W A2 R13 01121 317-0161-00 RES., FX D,CMP SN :160 ΟΗΜ,5%,0.125 W A2 R14 315-0101-00 RES., FXD,C MP SN :100 ΟΗΜ,5%,0. 25W A2 R 15 01121 315-0201-00 RES., FXD,C MP SN:200 ΟΗΜ,5%,0.25W A2 R17

Mfr

Mfr

Part Nu mber

01121 24546 01121 01121 01121 01121

BB 56G5 NA4D5003 F ΒΒ 4745 CB1605 CB2205 CB1125

73138 01121

01121

91-81-0 CB1535 CB1015 Β81615 CB1015 CB2015

01121

Service

A2 R18 A2 R19 Α21321 A2 R22 A2R23 A2R25

315-0911-00 307-0843-00 315-0160-00 321-0210-00 321-0210-00 311-1568-00

RES., FXD,C MP SN:910 ΟΗΜ ,5%,0.25W RES.,N TWK,F XD,FI : INPUT ATTENUATOR RES., FXD,C MP SN:16 ΟΗΜ,5%,0.25W RES., FXD,FI LM :1 .5 K ΟΗΜ,1%,0.125 W RE S., FXD,FI LM :1 .5 K ΟΗΜ,1%,0.125 W RES.,VAR, N ONW I R:50 ΟΗΜ,20%,0 .50W

01121 80009 01121 91637 91637 73138

CB9115 307-0843-00 CB1605 MFF1816G15000 F MFF1816G15000 F 91-90-0

A2 R26 A2 R27 A2 R29 A2 R30 A2 R31 A2 R33

311-0643-00 315-0160-00 321-0090-00 315-0124-00 315-0750-00 311-1556-00

RES.,VAR,NON W I R:50 ΟΗΜ,10%,O.50W RE S.,FXD,C MP SN:16 ΟΗΜ,5%,0.25W RE S.,FXD,FI LM :84.5 ΟΗΜ ,1%,0.125 W RE S.,FXD,C MP SN:120 K ΟΗΜ ,5%,0.25W RE S.,FXD,CMP SN:75 ΟΗΜ,5%,0.25W RES.,VAR,NONW I R :50K ΟΗΜ,20%,O .50W

73138 01121 91637 01121 01121 73138

82-33-2 CB1605 MFF1816G84R50 F CB1245 CB7505 91-78-0

91637 01121 91637 01121 91637

CB1015 MFF1816G309 ROF CB1025 MFF1816G309ROF CB2425 MFF1816G392ROF

315-0101-00 RE S., FXD,C MP SN:100 ΟΗΜ,5%,0. 25 W A2 R3401121 321-0144-00 RE S., FXD,FI LM :309 ΟΗΜ,1%,0 .125W A2 R35 315-0102-00 RE S., FXD,C MPSN:1 Κ ΟΗΜ,5%,0.25W A2 R37 321-0144-00 RE S., FXD,FI LM :309 ΟΗΜ,1%,0 .125W A2 R38 315-0242-00 RES., FXD,C MPSN:2.4K ΟΗΜ,5%,0.25W A2 R39 321-0154-00 RES., FXD,FI LM :392 ΟΗΜ,1%,0 .125W Α21141 A2 R42 A2 R43 A2R46 A2R47 A2R48 A2 R52

315-0333-00 311-2179-00 315-0472-00 311-1224-00 315-0512-00 317-0105-00

RES., FXD,C MPSN:33K ΟΗΜ,5%,0.25W RES., VAR, NONWW: PNL,10ONΜ,10%,0 .5W RES., FXD,C MP SN:4 .7K ΟΗΜ,5%,0.25W RES.,VAR,NONW I R:500 ΟΗΜ,20%,0 .50W RES., FXD,C MP SN:5 .1 Κ ΟΗΜ,5%,0.25W RES., FXD,C MP SN:I M ΟΗΜ,5%,0.125W

01121 32997 01121 32997 01121 01121

CB3335 91 Ζ1D-Ζ07-ΕΑ 0037 CB4725 3386 F-ΤΟ4-501 CB5125 ΒΒ 1055

A2 R53 A2 R 54 Α21155 A2 R 56 A2 R57 A2 R 58

321-1731-00 317-0056-00 321-1731-00 317-0474-00 315-0160-00 315-0220-01

RE S ., FXD,FI LM :500 K ΟΗΜ,1%,0.125W RE S., FXD,C MP SN:5 .6 ΟΗΜ ,5%,0 .125W RE S., FXD,FI LM :500 K ΟΗΜ,1%,0.125W RE S., FXD,C MP SN:470 K ΟΗΜ ,5%,0 .125 W RE S., FXD,C MP SN:16 ΟΗΜ,5%,0.25W RE S., FXD,C MP SN:22 ΟΗΜ,5%,0.25W

24546 01121 24546 01121 01121 01121

NA4D5003 F BB56G5 NA4D5003 F ΒΒ4745 CB1605 CB2205

01121 73138 01121

CB1125 91-81-0 CB1535 CΒ 1015 ΒΒ 1615 C B1015

315-0112-00 RE S., FXD,CMP SN:I .1 K ΟΗΜ,5%,0.25W A2 R59 311-1559-00 RES.,VAR,NONWI R :10K ΟΗΜ,20%,O .50W A2 R60 315-0153-00 RE S., FXD,C MP SN:15K ΟΗΜ,5%,0.25W A2 R61 315-0101-00 RE S., FXD,C MPSN:100 ΟΗΜ,5%,0. 25 W A2 R6301121 317-0161-00 RE S., FXD,C MPSN:160 ΟΗΜ,5%,0.125W A2 R64 315-0101-00 RE S., FXD,C MPSN:100 ΟΗΜ,5%,0. 25 W A2 R6501121 A2 R67 A2 R 68 A2 R69 A2R71 A2R 72 A2R73

REV ΜΑΥ 1983

315-0201-00 315-0911-00 307-0843-00 315-0160-00 321-0210-00 321-0210-00

RES., FXD,C MPSN:200 ΟΗΜ,5%,0.25W RES., FXD,C MPSN:910 ΟΗΜ,5%,0.25W RES.,NTWK,F XD,FI :I NPUT ATTENU ATO R RES., FXD,C MPSN:16 ΟΗΜ,5%,0.25W R ES., FXD,FI LM :1 .5 K ΟΗΜ,1%,0.125W RES., FXD,FI LM :1 .5 K ΟΗΜ,1%,0 .125W

01121 01121 01121 80009 01121 91637 91637

CB2015 CB9115 307-0843-00 CB1605 MFF1816GI 5000 F MFF1816G15000 F

8-21

R eplaceable E lect rical P arts-2235

Component No . A2 R75 A2R76 A21`1 77 A2 R79 A2 R80 A2 R81

Tektronix Part No .

Se rvice

Serial/ Model No . E ff Dscont

Mfr

N ame & Desc ri ption

Co de

311-1568-00 RES.,VAR,N ONWI R :50 ΟΗΜ,20%,0 .50W 73138 311-0643-00 RES.,VAR,N ONWI R :50 ΟΗΜ,10%,O .50W 73138 315-0160-00 RE S., FXD,CMP S N :16 ΟΗΜ,5%,0.25W 01121 321-0090-00 RE S., FXD,F I LM :84.5 οΗΜ,1%,0.125 W 91637 315-0124-00 RE S., FXD,C MP SN:120 K ΟΗΜ,5%,0.25W 01121 315-0750-00 RE S., F XD,C MP SN:75 ΟΗΜ,5%,0.25W 01121

A2 R83 311-1556-00 RES .,VAR,N ONW I R:50K ΟΗΜ,20%,0 .50W A2 R84 01121 315-0101-00 RE S., FXD,C MP SN:100 ΟΗΜ ,5%,0. 25W A2 R85 321-0144-00 RE S ., FXD,FI LM :309 ΟΗΜ,1%,0.125 W Α2R87 315-0102-00 RES .,FXD,C MP S N :I K ΟΗΜ ,5%,0.25W Α21188 321-0144-00 RES., FXD,FI LM :309 ΟΗΜ,1%,0.125 W A2R91 321-0154-00 RE S., FXD,FI LM :392 ΟΗΜ,1%,0.125 W

A2U60 A2U80 A2W43 A2W93 A2 W94 A2 W96

8 -22

105-0934-00 ACT UATOR,CAM SW:AC-GND-DC 105-0935-00 ACT U ATO R,CAM SW:ATT ENUATOR 80009 105-0934-00 ACT UATOR,CAM SW:AC-GND-DC 105-0935-00 ACTUATOR ,CAM SW:ATT ENUATOR 80009 156-1134-01 M IC R OCIRCUIT,LI :OPNL AMP , MOS/FET I NPUT 155-0273-00 M IC R OCI R CUIT, LI :ATT EN A MPLI FI ER 156-1134-01 155-0273-00 131-0566-00 131-0566-00 131-0566-00 131-0566-00

M IC ROCIR CU IT, LI :O PNL A MP,M OS/FET I NPUT M IC ROCIR CUIT, LI :ATT EN A MPLI FI ER BU S BU S BU S BU S

CO NDU CTO R :D UMMY RE S,2.375,22 CO ND UCTOR:D UMMY RE S,2.375,22 CO ND UCTO R :D UMMY RE S,2.375,22 CO ND UCTOR:D UMMY RE S,2.375,22

AWG AWG AWG AWG

Part Number

91-90-0 82-33-2 C61605 MFF1816G84R50 F CB1245 CB7505 73138 91637 01121 91637 91637

A2 R93 32997 311-2179-00 RES., VAR, NONWW: PNL ,10O NΜ,10%,0 .5W A2 R96 01121 315-0472-00 RES., FXD,C MP SN :4 .7 K ΟΗΜ,5%,0.25W A2 R97 32997 311-1224-00 RES.,VAR,NONW I R :500 ΟΗΜ,20%,0 .50W A2 R98 01121 315-0512-00 RES., FXD,C MP SN :5 .1 K ΟΗΜ,5%,0.25W A2 R910001121 315-0620-00 RES., FXD,C MPSN :62 ΟΗΜ,5%,0.25W A2 R951001121 315-0620-00 RES., FXD,C MPSN :62 ΟΗΜ,5%,0.25W A2S1 A2S10 A2S51 A2S60 A2U 10 A2U30

Mfr

91-78-0 CB1015 MFF1816G309ROF CB1025 MFF1816G309 ROF MFF1816G392 ROF 91 Ζ 1D-ΖΟ 7-ΕΑ0037 CB4725 3386 F- ΤΟ4-501 CB5125 C86205 CB6205

80009

02735 80009

105-0934-00 105-0935-00 105-0934-00 105-0935-00 CA3140AE 155-0273-00

02735 80009 57668 57668 57668 57668

CA3140AE 155-0273-00 JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO

80009

REV ΜΑΥ 1983

R eplaceable E lectrical P arts-2235

Component No .

Tektronix P art No .

Α3

670-7611-00

A3C376 A3C377 A3C379 A3C380

Serial/Model No . Eff Dscont

Mfr

Service

Code

Mfr

CKT BOARD ASSY :FRONT PANEL

80009

670-7611-00

283-0006-00 281-0576-00 283-0780-00 281-0578-00

CAP.,FXD,CER DI :0 .02UF,+80-20%,500V CAP.,FXD,CER DI :11PF,5%,500V CAP.,FXD,MICA D:125PF,1%,500V CAP.,FXD,CER DI :18PF,5%,500V

59660 59660 00853 59660

0841545Z5VO0203Z 301-000COG0110J D155F1250F0 301-05000G0180J

A3C987 A3CR534 A3CR537 A3CR538 A3CR539 A3CR648

281-0773-00 152-0141-02 152-0141-02 152-0141-02 152-0141-02 152-0141-02

CAP.,FXD,CER DI :0 .01UF,10%,100V SEMICOND DEVICE : SILICON,30V,150MA SEMICOND DEVICE : SΙ LICON,30V,150MA SEMICOND DEVICE : SILICON,30V,150MA SEMICOND DEVICE : SILICON,30V,150MA SEMICOND DEVICE : SILICON,30V,150MA

04222 01295 01295 01295 01295 01295

SA201C103KAA 1N4152R 1 N4152R 114415219 1 N4152R 1 N4152R

A3CR988 A3CR989 A3DS518 A3R89 A3R92 A3R111

152-0141-02 152-0141-02 150-1029-00 315-0242-00 315-0333-00 321-0251-00

SEMICOND DEVICE : S1LICON,30V,150MA SEMICOND DEVICE : SILICON,30V,150MA LT EMITTING DIO:GREEN,565NM,35MA RES.,FXD,CMPSN :2 .4K ΟΗΜ ,5%,0.25W RES.,FXD,CMPSN :33K ΟΗΜ,5%,0.25W RES.,FXD,FILM :4 .02K ΟΗΜ,1%,0.125W

01295 01295 53184 01121 01121 91637

1 N4152R 1 N4152R

A3R112 A3R161 A3R162 A3R280 A3R377 A3R378

311-2178-00 321-0251-00 311-2178-00 311-2147-00 321-0807-00 321-0617-00

RES.,VAR,NONWW:PNL,500 ΟΗΜ ,10%,O .5W RES .,FXD,FILM :4 .02K ΟΗΜ,1%,0.125W RES.,VAR,NONWW:PNL,500 ΟΗΜ ,10%,O .5W RES .,VAR,NONWIR :PNL,5K ΟΗΜ,20%,O .50W RES.,FXD,FILM :900K ΟΗΜ,1%,0.125W RES.,FXD,FILM :111K ΟΗΜ,1%,0.125W

01121 91637 01121 01121 91637 91637

W8650A

A3R379 A3R380 A3R438 A3R519 A3R520 A3R602

315-0220-00 321-0459-00 311-2178-00 315-0682-00 315-0912-00 311-2147-00

RES.,FXD,CMPSN :22 ΟΗΜ,5%,0.25W RES.,FXD,FILM :590K ΟΗΜ,1%,0.125W RES.,VAR,NONWW:PNL,500 ΟΗΜ ,10%,O .5W RES.,FXD,CMPSN :6 .8K ΟΗΜ ,5%,0.25W RES.,FXD,CMPSN :9 .1 Κ ΟΗΜ,5%,0.25W RES.,VAR,NONWIR :PNL,5K ΟΗΜ,20%,0 .50W

01121 91637 01121 01121 01121 01121

CB2205 MFF1816G59002F W8650A CB6825 CB9125 W8615B

A3R726 A3R982 Α314983 A3R985 A3R986 A3R987

311-2147-00 311-1560-00 315-0241-00 315-0124-00 315-0434-00 315-0124-00

RES.,VAR,NONWIR :PNL,5K ΟΗΜ,20%,0 .50W RES.,VAR,NONWIR :5K ΟΗΜ,20%,O .50W RES.,FXD,CMPSN :240 ΟΗΜ,5%,0.25W RES.,FXD,CMPSN :120K ΟΗΜ,5%,0.25W RES.,FXD,CMPSN :430K ΟΗΜ,5%,0.25W RES.,FX D,CMPSN :120K ΟΗΜ,5%,0.25W

01121 73138 01121 01121 01121 01121

W8615B

A3R988 A3R989 A3R990 A3R9376 A3S90 A3S200

315-0182-00 321-0239-00 321-0126-00 315-0510-00 260-1995-00 260-2111-00

RES.,FXD,CMPSN :1 .8K ΟΗΜ ,5%,0 .25W RES.,FXD,FILM :3 .O1K ΟΗΜ,1%,0.125W RES.,FXD,FILM :200 ΟΗΜ ,1%,0.125W RES.,FXD,CMPSN :51 ΟΗΜ,5%,0.25W SWITCH,PUSH :DPDT,SLOPE SWITCH,PUSHA BUTTON,1 POLE,BEAM FIND

01121 91637 91637 01121 71590 80009

CB1825 MFF1816G30100F MFF1816G200ROF CB5105 Κ40352ΑΒ 260-2111-00

A 3S226 A 3S380 A 3S390 A 3S392

A3S401 A 3S460

260-2075-00 260-2033-00 260-2111-00 260-2033-00 260-2110-00 260-2075-00

SWITCH,PUSH : SPDT,50VDC,500M AMP SWITCH,SLIDE:DPTT,125V,0 .5A SWITCH,PUSHA BUTTON,1 POLE,BEAM FIND SWITCH,SLIDE :DPTT,125V,O .5A SWITCH,PUSH :3 BUTTON,2 POLE,TRIG M ODE SWITCH,PUSH : SPDT,50VDC,500M AMP

80009 82389 80009 82389 80009 80009

260-2075-00 OBD 260-2111-00 OBD 260-2110-00 260-2075-00

A 3S532 A 3S545 A 3S550 A 3S555 A 3S602 A 3S648

260-2110-00 260-2033-00 260-2033-00 260-2033-00 260-2075-00 260-2033-00

SWITCH,PUSH :3 BUTTON,2 P OLE,TRIG M ODE SWITCH,SLIDE:DPTT,125V,O .5 Α SWITCH,SLIDE:DPTT,125V,0.5A SWITCH,SLIDE :DPTT,125V,O.5A SWITCH,PUSH :SPDT,50VDC,500M AMP SWITCH,SLIDE :DPTT,125V,0.5A

80009 82389 82389 82389 80009 82389

260-2110-00 OBD OBD OBD 260-2075-00 OBD

REV ΜΑΥ 1983

N ame & Description

Part N umber

XC209G CB2425 CB3335 MFF1816G40200F MFF1816G40200F W8650A W8615B HFF1104F90002F MFF1816G11102F

91-82-0 CB2415 CB1245 CB4345 CB1245

8-2 3

R eplaceable E lectrical P arts-2235 Service

Te ktronix Serial/ Model No . Compo n ent No . Part No. E ff Dscont N ame & Descriptio n Code A3 U985 A3W89 A3W515 A3W534 A3W539 A3W630

8-2α

156-0067-00 131-0566-00 131-0566-00 131-0566-00 131-0566-00 131-0566-00

ΜIC ROCIRCU ΙΤ , LI : OPERATIONAL AMPLI FI ER BU S CO NDUCTORDUMMY RES,2.375,22 AWG BU S CO NDUCTORMUMMY RE S,2.375,22 AWG BU S CO NDUCTOR:D UMMY RE S,2.375,22 AWG BU S CO NDUCTOR :D UMMY RE S,2.375,22 AWG BU S CO NDUCTORDUMMY RE S,2.375,22 AWG

Mfr 01295 57668 57668 57668 57668 57668

Mfr P art

Number

M IC ROA741C P JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO

REV ΜΑΥ 1983

Replaceable E lectrical P arts-2235

Tektronix Serial/ Model No . Component No . Part No . E ff Dscont Co

N ame & Descri ption

M fr

de

M fr

Service

Part Nu mber

Α4

670-7613-00

CKT B OA RD ASSYJIMI NG

80009

670-7613-00

A4C701 A4C702 A4C703 A4C705

295-0194-00 283-0674-00 281-0207-00 281-0813-00

CA P SET, MATCHE D:2 ΕΑ 1.O UF,1 .5%,50 V CA P., FXD,MICA D:85PF ,1%,500V CA P., VAR, PLSTC:2-18PF ,100V CA P.,FXD CER DI :0.047 UF,20%,50V

90201 00853 80031 04222

ΤΤΧ 100 + 100 D155 F850 F O 2807CΟ0218 ΜΗ 02 FΟ GC705- Ε-473 Μ

A4C706 A4C707 A4C708 A4C710 A4C712 A4C713

281-0773-00 281-0773-00 281-0756-00 281-0813-00 283-0674-00 281-0207-00

CA P., FXD,C ER DI :0 .01 UF ,10%,100 V CAP., FXD,C ER DI :O .O1 UF ,10%,100V CAP., FXD,C ER DI :2 .2 PF,0 .5%,200V CAP., FXD CER DI :0 .047 UF ,20%,50V CA P., FXD,MICA D:85PF ,1%,500V CA P.,VAR , PLSTC :2-18PF ,100 V

04222 04222 12969 04222 00853 80031

SA201C103KAA SA201C103KAA CG B2R2DFN GC705-Ε-473 Μ D155 F850FO 2807000218MH 02 FO

A4C714 A4C715 A4C720 A4C724 A4C728 A4C749

281-0756-00 290-0776-00 281-0775-00 281-0773-00 283-0203-00 281-0775-00

CA P., FXD,C ER DI :2 .2 PF ,0 .5%,200V CAP., FXD, EL CTLT:22UF,+50-10%,10V CA P., FXD,CER DI :0 .1 UF ,20%,50V CA P.,FXD,CER DI :0 .01 UF ,10%,100V CA P.,FXD,CER DI :0 .47UF ,20%,50V CA P.,FXD,C ER DI :0 .1 UF ,20%,50V

12969 55680 04222 04222 72982 04222

CG B2R2D FN ULA1A220TEA ΜΑ 205Ε104ΜΑΑ SA201C103KAA 8131M058Z5UO474M ΜΑ 20SΕ104ΜΑΑ

A4C750 A4C751 A4C752 A4C755 A4CR732 A4CR742

290-0246-00 281-0809-00 281-0775-00 283-0107-00 152-0141-02 152-0141-02

CA P.,FXD,ELCT LT:3 .3 UF ,10%,15V CA P.,FXD,C ER DI :200PF ,5%,100V CA P.,FXD,C ER DI :O.l UF,20%,50V CA P., FXD,C ER DI :51 PF ,5%,200V SEM ICOND DEVICE : SI LICON,30V,150 MA SEM ICOND DEVICE : SI LICON,30V ,150 MA

56289 72982 04222 96733 01295 01295

162D335X9015CD2 8013T2ADDC1G201J ΜΑ205Ε104ΜΑΑ R3017 1 N4152 R 1 N4152 R

Α40701 Α40704 Α40706 Α40709 Α40710 Α40712

151-0424-00 151-1042-00 151-0736-00 151-0424-00 151-1042-00 151-0736-00

TRANSISTOR : SI LICON, NPN SEM ICOND DVC SEWATCHED PAIR FE T TRANSISTOR : SILICON, NPN TRANSISTOR : SILICON, NPN SEM ICOND DVC SEWATCHED PAIR FE T TRANSISTOR : SILICON, NPN

04713 01295 04713 04713 01295 04713

SPS8246 SKA5390 SPS8317 SPS8246 SKA5390 SPS8317

Α40732 Α40737 Α40742 A4R701 A4 R702 A4 R703

151-0712-00 151-0188-00 151-0712-00 307-0780-01 322-0519-01 315-0100-00

TRANSISTOR : SILICON, NPN TRANSISTOR : SI LICON, PNP TRANSISTOR : SI LICON, NPN RES, NTWK , FXD,FI :TIMI NG RES., FXD,FI LM :2 .49M ΟΗΜ,0 .5%,0 .25W RES., FXD,C MPSN :10 ΟΗΜ ,5%,0.25W

04713 04713 04713 80009 91637 01121

SPS8223 SPS6868K SPS8223 307-0780-01 HFF143G24903D CB1005

A4 R705 A4 R707 A4 R709 A4 R710 A4 R711 Α4P1713

315-0151-00 301-0202-00 315-0100-00 315-0151-00 307-0780-01 301-0202-00

RE S., FXD,C MPSN:150 ΟΗΜ,5%,0 .25W RE S.,FXD,CMPSN:2 K ΟΗΜ,5%,O .50W RE S., FXD,C MPSN:10 ΟΗΜ,5%,0.25W RE S., F XD,C MPSN:150 ΟΗΜ,5%,0.25ω RE S, NTWK, FXD,FI :TIMI NG RE S., FXD,CMPSN:2K ΟΗΜ,5%,O.50W

01121 01121 01121 01121 80009 01121

CB1515 ΕΒ2025 CB1005 CB1515 307-0780-01 ΕΒ2025

A4 R715 A4 R716 A4 R717 A4 R718 A4 R719 A4 R721

321-0308-00 321-0303-00 321-0306-00 321-0306-00 315-0330-00 311-2151-00

RE S., FXD,FI LM :15.8 K ΟΗΜ,1%,0.125 W RE S., FXD,FI LM :14K ΟΗΜ,1%,0 .125 W RE S., FXD,FI LM :15K ΟΗΜ,1%,0.125 W RE S., FXD,FI LM :15K ΟΗΜ ,1%,0 .125 W RE S., FXD,CMP SN:33 ΟΗΜ,5%,0.25W RES.,VAR,NONW I R:PNL,500 ΟΗΜ,20%,O .5W,D PST

91637 91637 91637 91637 01121 12697

MFF1816G15801 MFF1816G14001 MFF1816G15001 MFF1816G15001 CB3305 OBD

A4 R722 A4 R724 A4 R727 A4 R728 A4 R730 A4 R731

315-0201-00 315-0200-00 321-0246-00 321-0211-00 311-0635-00 321-0244-00

RE S., FXD,C MP SN:200 ΟΗΜ,5%,0.25W RE S., FXD,C MP SN:20 ΟΗΜ,5%,0.25W RE S., FXD,FI LM :3 .57K ΟΗΜ,1%,0.125W RE S., FXD,FI LM :1 .54K ΟΗΜ,1%,0.125W RE S.,VAR, NONW I R:1 K 0ΗΜ ,10%,0 .5%,0.5 W RE S., FXD,FI LM :3 .4 K ΟΗΜ,1%,0.125 W

01121 01121 91637 91637 73138 91637

CB2015 CB2005 MFF1816G35700F MFF1816G15400F 82Ρ-6-2-102Κ MFF1816G34000F

REV ΜΑΥ 1983

F F F F

8_ 2 5

R ep laceable E lectrical P arts-2235 Se rvice

Component No .

Te ktronix P art No .

Serial/ Model No . E ff Dscont

N ame & Descri ption

A4 R732 91637 321-0198-00 RE S ., FXD,FI LM :1 .13K ΟΗΜ,1 %,0.125 W A4 R733 91637 321-0203-00 RE S., F XD,FILM : 1 .27K ΟΗΜ,1 %,0.125 W A4 R737 315-0392-00 RE S ., FXD,C MP SN:3 .9 K ΟΗΜ ,5Ί,0 .25W A4 R738 315-0512-00 RE S., F XD,C MP SN:5 .I K ΟΗΜ ,5%,0.25W A4 R740 311-0635-00 RES.,VAR,NONW I R:1 K ΟΗΜ,10%ο,0 .5%ο,0 .5 W Α411741 91637 321-0244-00 RE S., F XD,FI LM :3 .4 K ΟΗΜ,1 %,0.125 W A4 R742 A4 R743 A4 R745 A4 R746 A4 R748 Α4R749

321-0198-00 RE S., F XD,FI LM :1 .13K ΟΗΜ,1 %,0.125W 91637 321-0203-00 91637 RE S., FXD,FI LM :1 .27K ΟΗΜ,1 %,0.125W 321-0177-00 91637 RE S., FXD,FI LM :681 ΟΗΜ ,1 %,0.125 W 321-0184-00 91637 RE S., FXD,FI LM :806 ΟΗΜ ,1 %,0.125 W 315-0113-00 RE S., FXD,C MP SN:11 K OHM ,5%,0.25W 311-1560-00 RE S .,VAR , NONW I R:5K 0ΗΜ ,20°/,O.50W

A4 R750 01121 315-0113-00 RE S ., F XD,C MP SN:11 K ΟΗΜ ,5 ,0 .25W A4 R751 321-0326-00 RE S., FXD,FI LM :24.3 K 0NΜ,1%,0.125W A4 R752 01121 315-0100-00 RE S., FXD,C MP SN:10 ΟΗΜ,5%,0 .25W A4 R753 321-0216-00 RE S., FXD,FI LM :1 .74K 0ΝΜ ,1 b,0.125W A4 R754 311-0622-00 RE S.,VAR, NONW I R:1000HM ,10%, 0.50W A4 R755 315-0121-00 RE S., FXD,C MP SN:120 ΟΗΜ ,5%ο,0 .25W

Mfr

Code

01121 01121 73138

01121 73138

M fr Part N um ber MFF1816G11300F MFF1816G12700F CB3925 CB5125 82 Ρ-6-2-102 Κ MFF1816G34000F MFF1816G1130OF MFF1816G12700F MFF1816G681 R OF MFF1816G806ROF CB1135 91-82-0

91637 32997 01121

CB1135 MFF1816G24301 F CB1005 MFF1816G17400F 3329 N-G48-101 CB1215

91637

A4 RT715 A4S701 A4 U715 A4 U750 A4 U760 A4 VR 720

307-0125-00 260-2023-01 156-0067-00 156-1150-00 155-0124-00 152-0744-00

RE S.,THERMAL:500 ΟΗΜ,10%,25 DEG C SWITCH, ROTARY:A/Β SWEEP M ICROCIRCUIT,LI :O PERATIO NAL A MPLI FI ER M ICROCIRCUλ T, LI : VOLTAGE RE GULATO R, NE GATI VE M ICROCIRCUIT,LI : HORIZONTA L PREAMPL SEM ICOND DEV ICE:Z EN ,SI,3.6V,5%,0.4 W

50157 80009 01295 04713 80009 04713

2D1595 260-2023-01 M IC ROA741C P M C79LOSAC P 155-0124-00 1 Ν747Α

A4 VR749 A4 W709

152-0744-00 131-0566-00

SEM ICOND DEV ICE:Z EN ,SI,3.6V,5%,0.4 W BU S CO ND UCTOR :D UMMY RE S,2.375,22 AWG

04713 57668

1 Ν747Α JWW-0200ΕO

α-26

REV ΜΑΥ 1983

R eplaceable E lectrical Parts-2235

Te ktronix Serial/ Mod el No . Component No . P art No . Eff Dsco nt N ame & Descri p tio n Code

Mfr

Mfr P art

Service

Nu mber

Α5

670-7612-00

CKT B OA RD ASSY :A LTERNAT E SWEEP

80009

670-7612-00

A5C610 A5C624 A5C627 A5C643

281-0862-00 281-0826-00 281-0893-00 281-0811-00

CA P ., FXD,C ER CA P., F XD,C ER CA P., FXD,C ER CA P., FXD,C ER

DI :0 .001 UF ,+80-20%,100V D1 :2200PF,5%,100 V DI :4 .7PF, +/ -0.5 PF ,100V DI :10PF,10%,100 V

20932 12969 04222 72982

401- ES-100AD102Z CGC222 KEX M A101A4 R7DAA 8035D2AADC1G100K

A5C655 A5C659 A5C665 A5C671 A5C672 A5C690

281-0773-00 281-0773-00 281-0810-00 281-0851-00 281-0759-00 281-0772-00

CA P., FXD,C ER CA P., FXD,C ER CA P., FXD,C ER CA P., FXD,C ER CA P., FXD,C ER CA P., FXD,C ER

DI :0 .01 UF ,10%,100V DI :0 .01 UF ,10%,100V DI :5 .6PF ,0 .5%,100V DI :180 PF ,5%,100VDC DI :22PF ,10%,t00 V DI :0 .0047UF,10%,100 V

04222 04222 04222 20932 72982 04222

SΑ201C103ΚΑΑ SA201C103KAA GC10-1A5 R6D 401 EO100AD181J 8035D9AADClG220K GC701C472K

A5C693 A5C694 A5C R 680 A5C R 685 A5CR816 A5CR817

290-0776-00 281-0775-00 152-0141-02 152-0141-02 152-0153-00 152-0141-02

CA P., FXD,EL CTLT :22UF,+50-10%,10V CA P., FXD,C ER DI :0 .1 UF ,20%,50V SEM ICOND DEVICE : SI LICON,30V,150 MA SEM ICOND DEVICE : SI LICON,30V,150 MA SEM ICOND DEVICE : SILICON, 15V,50MA SEM ICOND DEVICE : SI LICON,30V,150 MA

55680 04222 01295 01295 07263 01295

ULA1A220TEA ΜΑ 205Ε104ΜΑΑ 1 N4152R 1 N4152R FD7003 1 N4152R

Α5Ο619 Α50620 Α50630 Α50631 Α50637 Α50643

151-0712-00 151-0712-00 151-0369-00 151-0369-00 151-0276-00 151-0190-00

TRANSISTOR:SILICON, NPN TRANSISTOR : SILICON, ΝΡΝ TRANSISTOR : SILICON, ΡΝΡ TRANSISTOR : SILICON, ΡΝΡ TRANSISTOR : SILICON, ΡΝΡ TRANSISTOR : SI LICON, NPN

04713 04713 01295 01295 80009 07263

SPS8223 SPS8223 SKA6664 SKA6664 151-0276-00 S032677

Α50680 Α 50685 A5 R 604 Α 511605 A5 R606 Α 513609

151-0198-00 151-0198-00 315-0242-00 321-0203-00 321-0201-00 315-0222-00

TRANSISTOR:SILICON, NPN,S EL FROM MPS918 TRANSISTOR : SI LICON, NPN,S EL FR OM MPS918 RE S., FXD,CMP SN:2 .4 K ΟΗΜ ,5%,0.25W RE S., FXD,FILM :1 .27K ΟΗΜ,1%,0.125 W RE S., FXD,FI LM :1 .21 K ΟΗΜ,1%,0.125 W RE S., FXD,CMP SN:2 .2 K ΟΗΜ ,5%,0.25W

04713 04713 01121 91637 91637 01121

SPS8802-1 SPS8802-1 CB2425 MFF1816G12700 F MFF1816G1210O F CB2225

A5 R 610 A5 R611 A5 R614 A5 R616 Α511617 AS R619

315-0241-00 315-0470-00 315-0302-00 321-0207-00 321-0197-00 321-0092-00

RE S., FXD,CMP SN:240 ΟΗΜ,5%,0.25W RE S., FXD,CMP SN:47 ΟΗΜ,5%,0.25W RE S., FXD,CMP SN:3 K ΟΗΜ,5%,0.25W RE S., FXD,FI LM :1 .4 K ΟΗΜ,1%,0.125 W RE S., FXD,FI LM :I .1 K ΟΗΜ,1%,0.125 W RE S., FXD,FI LM :88.7 ΟΗΜ ,1%,0.125 W

01121 01121 01121 91637 91637 91637

CB2415 CB4705 CB3025 MFF1816G14000 F MFF1816G11000 F MFF1816G88R70 F

A5 R620 Α513621 AS R 623 Α511624 A5 R 625 A5 R626

321-0090-00 315-0271-00 315-0910-00 301-0430-00 315-0431-00 315-0431-00

RE S., FXD,FI LM :84.5 ΟΗΜ ,1%,0.125 W RE S., FXD,CMP SN:270 ΟΗΜ,5%,0.25W RE S., FXD,CMP SN:91 ΟΗΜ,5%,0.25W RE S., FXD,CMP SN:43 ΟΗΜ,5%,0.50W RE S., FXD,CMP SN:430 ΟΗΜ,5%,0.25W RE S., FXD,CMP SN:430 ΟΗΜ,5%,0.25W

91637 01121 01121 01121 01121 01121

MFF1816G84R50 F CB2715 CB9105 ΕΒ 4305 CB4315 CB4315

A5 R627 A5 R 629 A5 R 630 A5 R 631 A5 R632 A5 R 633

315-0201-00 315-0471-00 315-0471-00 315-0471-00 315-0181-00 315-0302-00

RE S., FXD,CMP SN:200 ΟΗΜ,5%,0.25W RE S., FXD,C MP SN:470 ΟΗΜ,5%,0.25W RE S., FXD,CMP SN:470 ΟΗΜ,5%,0.25W RE S., FXD,C MP SN:470 ΟΗΜ,5%,0.25W RE S., FXD,C MP SN:180 ΟΗΜ,5%,0.25W RE S., FXD,CMP SN:3 K ΟΗΜ,5%,0.25W

01121 01121 01121 01121 01121 01121

CB2015 CB4715 CB4715 CB4715 CB1815 CB3025

A5 R 634 A5 R637 A5 R638 A5 R640 Α513642 Α513643

315-0201-00 315-0104-00 315-0102-00 315-0114-00 321-0314-00 321-0322-00

RE S., FXD,CMP SN:200 ΟΗΜ,5%,0.25W RE S., FXD,CMP SN:100 K ΟΗΜ ,5%,0.25W RE S., FXD,CMP SN:1 Κ ΟΗΜ,5%,0.25W RE S., FXD,CMP SN:110 K ΟΗΜ ,5%,0.25W RE S., FXD,FI LM :18.2 K ΟΗΜ,1%,0.125 W RE S., FXD, FI LM :22.1 K ΟΗΜ,1%,0.125 W

01121 01121 01121 01121 91637 91637

CB2015 CB1045 CB1025 CB1145 MFF1816G18201 F MFF1816G22101 F

REV ΜΑΥ 1983

8-27

R eplaceable E lect rical P arts-2235

Service

Te ktronix Se rial/ Model No . Component No . P art No . Eff Dscont Co

M fr

N ame & Descri ption

de

Mfr P art

Nu mber

A5 R644 A5 R651 AS R652 Α5ΡΙ653 A5R657 Α513660

315-0512-00 321-0277-00 311-1238-00 321-0289-00 315-0102-00 315-0471-00

RES., FXD,C MP SN :5 .1 K OHM,5%,0 .25W RES., FXD,FI LM :7 .5 K ΟΗΜ,1%,0.125W RES.,VAR,NONW IR:5 K ΟΗΜ ,10%,0.50W RES., FXD,FI LM :10K ΟΗΜ ,1%,0.125 W RES., FXD,C MPSN:1 Κ OHM,5%,0 .25W RE S., FXD,C MPSN:470 OHM,5%,0 .25W

01121 91637 73138 91637 01121 01121

CB 5125 MFF1816G75000 F 72-27-0 MFF1816G10001 F CB 1025 CB4715

A5R662 A5R663 A5R664 A5R665 Α513666 AS R670

315-0392-00 315-0102-00 315-0392-00 315-0204-00 315-0221-00 315-0512-00

RE S., FXD,C MPSN:3 .9 K OHM,5%,0 .25W RE S., FXD,CMP SN:1 Κ OHM,5%,0 .25W RE S., FXD,C MP SN:3 .9 K OHM,5%,0 .25W RE S., FXD,C MP SN:200 K OHM,5%,0 .25W RE S., FXD,C MP SN:220 OHM,5%,0 .25W RE S., FXD,C MP SN:5 .1 K OHM,5%,0 .25W

01121 01121 01121 01121 01121 01121

CB3925 CB1025 CB3925 CB 2045 CB2215 CB 5125

A5 R671 Α513672 A5 R674 A5 R677 Α511690 A5 R693

315-0681-00 315-0331-00 315-0512-00 315-0471-00 315-0100-00 307-0106-00

RE S., FXD,C MP SN :680 OHM,5%,0 .25W RES ., FXD,C MP SN :330 OHM,5%,0.25W RES., FXD,C MP SN :5 .1 K OHM,5%,0 .25W RES., FXD,C MP SN:470 OHM,5%,0.25W RES., FXD,C MPSN:10 OHM,5%,0.25W RES., FXD,C MPSN:4.7 OHM,5%,0 .25W

01121 01121 01121 01121 01121 01121

C86815 CB3315 CB 5125 CB4715 CB1005 CB47G5

01121 01121

CB5625 CB3025 156-0534-00 156-1641-00 UP C311C S N74 LS04

A5 R816 315-0562-00 RE S., FXD,C MPSN:5 .6 K OHM,5%,0 .25W A5 R817 315-0302-00 RE S., FXD,C MPSN:3K OHM,5%,0 .25W A5 U605 80009 156-0534-00 M IC ROCIRCUIT,LI :D UAL DI FF AMPL,14 LID DI P A5 U625 80009 156-1641-00 M IC ROCIRCUIT,DI : ECL,Q UAD 2-INPUT NO R GATE A5 U655 156-1126-00 M IC ROCIRCUIT,L L VOLTAGE CO MPARATO R A5 U660 156-0385-02 M IC ROCIRCUIT,DI: HE X I NVER TER Α51J665 156-0382-02 Μ IC ROCIRCUIT,DI: QUAD 2-ΙΝΡ NA ND GAT E 01295 Α51J670 156-1611-00 M ICROCIRCUIT,DI:D UAL D TYPE EDGE-T R IGGERED A5U680 01295 156-0382-02 M ICR OCIRCUIT,DI: QUAD 2- ΙΝΡ NA ND GAT E A5VR 624 152-0195-00 SEM ICOND DEV IC E:Z ENER ,0.4 W,5 .1 V,5% A5 VR 660 152-0195-00 SEM ICO N D DEV IC E:ZENER ,0 .4 W,5 .1 V ,5% A5 W637 131-0566-00 BU S CO NDUCTOR :D UMMY RES,2.375,22 AWG

51984 01295

04713 04713 57668

SN74 L S00 74 F74 SN74 L S00 SZ11755 SZ11755 JWW-0200Ε O

57668 57668 57668 57668 57668 57668

JWW-0200 ΕO JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO JWW-0200ΕO

07263

A5 W638 A5 W643 A5 W655 A5 W662 A5 W668 A5 W670

131-0566-00 131-0566-00 131-0566-00 131-0566-00 131-0566-00 131-0566-00

BU S BU S BU S BU S BU S BU S

A5 W677 A5 W678 A5 W682 A5 W690 A5W695 A5W696

131-0566-00 131-0566-00 131-0566-00 131-0566-00 131-0566-00 131-0566-00

BU S CO ND UCTOR:D UMMY RE S,2.375,22 BU S CO NDUCTOR:D UMMY RE S,2.375,22 BU S CO ND UCTOR:D UMMY RE S,2.375,22 BU S CO N DUCTOR:D UMMY RE S,2.375,22 BU S CO ND UCTORMUMMY RE S,2.375,22 BU S CO N DUCTOR:D UMMY RE S,2.375,22

AWG AWG AWG AWG AWG AWG

57668 57668 57668 57668 57668 57668

JWW-0200ΕO JWW-0200 ΕO JWW-0200ΕO JWW-0200ΕO JWW-0200 ΕO JWW-0200ΕO

A5W698

131-0566-00

BU S CO NDUCTOR :D UMMY RE S,2.375,22 AWG

57668

JWW-0200ΕO

α-28

CO NDUCTOR:D UMMY CONDUCTOR:D UMMY CONDUCTORMUMMY CON DUCTOR:D UMMY CONDUCTOR:DUMMY CO N DUCTOR:DUMMY

RES,2.375,22 AWG RES,2 .375,22 AWG RES,2.375,22 AWG RES,2 .375,22 AWG RES,2.375,22 AWG RES,2 .375,22 AWG

REV ΜΑΥ 1983

R eplaceable E lectrical P arts-2235 Service

M fr Code

M fr Part Number

CKT B OARD ASSY :EMI FILTER BOARD

80009

670-7615-00

285-1252-00 285-1192-00 285-1192-00 301-0512-00

CAP .,FXD,PLASTIC :0 .15UF,10%,250 VAC CAP.,FXD,PPR DI :0 .0022UF,20%,250VAC CAP .,FXD,PPR DI :0 .0022UF,20%,250VAC RES.,FXD,CMPSN :5 .1K ΟΗΜ,5%,O.50W

26769 OOOFG OOOFG 01121

719JlMH154PM251S ΡΜΕ271 Υ422 ΡΜΕ271 Υ422 ΕΒ5125

A6R903 A6RT901 Α6Τ901 Α6Τ903 A6VR901 A6W9011

301-0331-00 307-0863-00 120-1449-00 120-1455-00 307-0456-00 196-0531-00

RES.,FXD,CMPSN :330 ΟΗΜ,5%,0.50W RES,THERMAL :100 ΟΗΜ,10%,NTC X FMR,COM MODE : TRANSFORMER,RF:POT CORE RES,V SENSITIVE: LEAD,ELECTRICAL:18 AWG,3.0 L ,8-01

01121 15454 02113 20462 03508 80009

ΕΒ3315 SG13-5 Ρ104 OBD M OV-V250LA15A 196-0531-00

A6W9091

196-0505-00

LEAD,ELECTRICAL:18 AWG,3.0 L ,8-9

80009

196-0505-00

DL9210

119-1515-00

CHASSIS PARTS DELAY LINE,ELEC :93NS,150 OHM,ASSY

80009

119-1515-00

F9001 FL9001 J9100 J9376 J9510 J9800

159-0018-00 119-1541-00 131-0126-00 131-0955-00 131-0126-00 131-0955-00

FUSE,CARTRIDGE :3AG,0 .8A,250V,SLOW-BLOW F I LTER, RFI :1 A,250VAC CONNECTOR,RCPT, :BNC,FEMALE CO ΝΝ, RC Ρ7, ELEC : BNC, FEM A LE CONNECTOR, RCPT,:BNC,FEMALE CONΝ, RC ΡΤ , ELEC : BNC, FEMΑLE

71400 05245 77820 13511 77820 13511

M DL 8/10

J 9900

136-0387-01 311-2146-00 311-1183-01 311-2177-00 311-2177-00 154-0861-00

J ACK,TIP:BLACK

71279 12697 32997 12697 12697 80009

450-4252-01-0310 CM41773 3540S-91-202 CM43517 CM43517 154-0861-00

Component No .

Tektronix P art No .

Α6

670-7615-00

A6C900 A6C902 A6C903 A6R901

R9521 R9644 39802Α, Β R9812 V9870

REV ΜΑΥ 1983

Serial/Model No . Eff Dscont

N ame & Description

RES.,VAR,NONWIR :50 ΟΗΜ,20%,0 .5W RES.,VAR,WW :PNL,2K ΟΗΜ,5%,2W RES .,VAR,NONWW:PNL,1OK ΟΗΜ,20%,O .5W RES.,VAR,NONWW:PNL,10K ΟΗΜ,20%,0 .5W ELECTRON TUBE :T4651-31-2

1 EF1 9663-1 NT-34 31-279 9663-1 NT-34 31-279

8-29

Sectio n 9-2235 Serv ice

DIAG R A M S AND CI R C U IT B OA R D I LLU ST R ATIO N S Symbols Graphic symbols an d class designation letters are based on ANSI Stan d ard Υ32 .2-1975.

Logic symbology is based on ANSI Υ32 .14-1973 in terms of positive logic. L ogic symbols depict the logic function performe d an d may differ from the manufacturer's data . The overline on α signal n ame in d icates that the signal performs its intended f unction w hen it is in the low state. Abbreviations are based on ANSI Υ 1 .1-1972. Other ANSI standards that are u sed in the preparation of diagrams by Tektronix, Inc. are:

T he Assembly

Each

information and s p ecial symbols

N umbers

an d Gri d Coor d inates

assembly in the instrument is assigne d an assembly number (e .g ., Α 20) . The assembly n umber appears onthecircuit board outline onthediagram,iht h e title for the circuit boar d co mponent location illustration, an d in the lookup table f or the schematic diagram and correspon d ing component locator illustration . The R eplaceable E lectrical Parts list isarranged byassem b lies in numerical se q uence; the components are listed by com ponent number '(see following illustration for constructing α component number).

Υ14 .15, 1966 Υ14 .2, 1973 Υ10 .5, 1968

Drafting Practices . L ine Conventions an d L ettering . L etter Symbols for Quantities U se d i n Electrical Science an d E lectrical Engineering.

Am erican N ational Sta n dard Institute 1430 B roadway N ew York, New York 10018

Com ponent Val ues

Electrical components shown on the diagrams are in the following units unless n ote d otherwise: Ca p acitors - Values one or greater are in picofarads(pF) . Values less than one are in microfara d s (pF) . R esistors = Ohms (Ω) .

below

may appear in this manual .

The schematic diagram and circuit boar d com p onent location illustration have grids. Α lookup table wit h the gri d coor d inates is provided for ease of locating the component. Onlythecomponents illustrated onthefacing diagram are liste d i n the lookup table. When more than one schematic diagram is u se d to illustrate the circuitryon α circuit board , the circuit board illustration may only appear opposite the first diagram on which it was illustrated ; the looku p table will list the diagram number of other diagrams t h at the circuitry of the circuit board appears on .

Mod ified Component-See Parts L ist (De picted in grey, o r wit h grey outli ne)

Cam S w itc h Clos u re C h art _ : (Dot in dicates switc h closur e(

-,

τι 0~

Etc h e d Circu it B oard ._ Outlined in B lac k

s r r"ιc ».,

R ef er [ ο Wavetor m Function Outli n e

θσχ - Ι dentifies Panel οη rols, Con n ectors and In dicators Coaxial con n ectors : male

Block

temaιe

R eg ΒηιΟ - 20 κ ~ _

Pl u g I nd e x, sig nifies pi n No . E xternal Screwdri ve r Adj . s hiel d ing

Selecte d val u e, see P a rts L ist and Μαίπ [e παη ce Section for Selection C riteria

670- ΧΧΧΧ -ΧΧ λ

* [ΟΥΡΟΧΣΜΙ MIIYR f R ΕCλΥΡur ΑΖ3,P~?, R1234

I "I

Υ

CO L OR COD E

SMALL DISC CAPACITORS

COMPOSITION ι_

DI PPE D TA N TA LUM ELE CT R OL YTICS

CER AM IC CAP ACITO R S

Ο 1 Ο 2 an d Ο 3 - 1st, 2 nd, a nd 3 rd significant fig u res -tolera n ce

-m u lti p lier 0-

tempe ratu re coefficient

ΟΤ

-pola r ity a nd voltage rati n g

CO L OR

SIG N I F ICA N T FIG URES

I 1

a nd/or TC color co d e may not be presen t on some capacitors

RESISTO R S MUL TI PL I ER TO LER AN CE I

CA P ACITO RS

MUL TI PL I ER

ove r 10 p F

DI PPE D TAN TA LUM __1 V OLTAGE unde r 10 pF I RATI N G

TO LERAN CE

BL AC K

0

1

---

1

±20%

±2 pF

4 V DC

BR OWN

1

10

±1%

10

±1%

±0.1 pF

6 V DC

RE D

2

102 o r 100

±2%

10 2 or 100

!2%

---

10 VDC

OR A NGE 3

10 3 o r 1 Κ

±3 %

10 3 o r 1000

±3 %

---

15 VDC

Y ELL OW

4

104 o r 10 Κ

±4%

104 o r 10,000

+100%-9%

---

G REEN

105 o r 100 Κ

20 VDC

5

±Υs%

10 5 or 100,000

±5 %

±0.5 ρ F

25 V DC

106 or 1,000,000

---

---

35 V DC

---

---

50 V DC

1 0 o r 0.01

+80%-20%

±0.25 p F

16-' o r 0.1

±10%

±1 pF

BLUE

6

106 or 1 Μ

='/α °/ο

V IO LE T

7

---

±1/10%

G R AY

8

---

WH IT E

9

---

---

GO L D

-

-

10 -1 or 0.1 -2 or 0.01

±5%

SI LVER

10

±10%

-

---

±20%

ΝΟΝΕ

(1 861-20A)4206-31 Figu r e 9- 1 . Colo r codes fo r resistors a nd ca p acito rs.

PUT

711 &

F εΤ

712

C Q254-255 256-257

PL ASTIC CAS E T R A N SISTO R S

ME TA L CAS E TR A N SISTO R S

SC T R A N SISTO R

R

Q946 & Q947

FET

Q935

FLAT PAC K

I

I

ND E X

8 Ι

I

ND E X

N T E G R AT E D CI R C U ITS

LE AD CO NF IG UR ATIO N S A N D CAS E STY LE S A RE TY P ICA L , BU T MAY V A R Y D UE TO VEN DO R CH A N G E S O R IN ST RUMEN T M ODI F ICATIO N S. (3826-17)4206-32

F ig ur e 9- 2. Semicon d u cto r lead con fig u rations.

2235 Service ϋ Ν ιs, F Ζ ω Ζ Ο α

To i dentify any component mo unted on α circ uit b oard and to locate that co mponent in the appropriate schematic d iagram

1 . L ocate the Ci rc uit B oa rd Illustration

Ο

υ

ϋ ω Ζ,

~- IL ύά

ΟΧ JW

2. Determine τ 1

α.

In the i nst rum ent i dentify the Asse mbly N u m ber of t he circuit board in qu estion . The Asse mbly Numbe r is u sually printe d on the upper left corner of t he ci r cuit b oa rd on t he co mp onent si de.

b.

Ιη t he ma n ual locate and pull out ta bbe d page w hose title co rr es p ond s wit h th e Asse mbly Nu m b er of t h e ci r cuit boa rd. Ci r cuit board asse mbly n u mbers an d boar d no menclature are pr inte d on t he back side of t he ta bs (facing the rear of th e ma nual) .

a.

Compare the desi r τίοη .

b.

Scanthε find the

c.

Determi ι co mpone

R

ι6+, ~

α , ι ~'*'. .4 [6Ύα

0

οΦ

4

α

ξ

06~5 Γ

. ~ ~

ο

000 ρ Ι τ 8]0 Φι~ ς ς533 . ι ρ

000 6

~- " . .εα εατ ιο.ι~ εεη,ρεε.m ια.πεε..

U α

PULL OUT PAGE TA BS F OR CIRC UIT B OA RD IL LUST RATION

5. L ocate the Comp onent on the Circ uit

ASSEMBL Y N UMBER AND CI RCUIT BOA R D NAME

B oard

α.

In the man ual, locate an d pull out the tabbed page whose title an d Assembly Nu mbe r correspon d with the desired ci rcuit boa rd . This information is on the b ac k si de of t he tabs .

b.

U sing the Circ u it Number and gr i d coordinates, locate the component on the Circ uit B oa rd Ill ustration .

c.

In th e circuit b oa r d location illustration, d etermine the location of t he circuit boa rd in the inst rument.

d.

F in d t he circ uit board in t he instrument an d compare it with its ill ustration i n the ma nual to locate the d esi red co m ponent on the board.

ΙΙ

4. Determine the Circ uit B oard Illustratii L ocatio n α.

Fr om the sc h ematic diagram, deι N umbe r of the ci rcuit board on ωmo u nted. Th is information is b oxes of the h eavy line that d isti ng uέ s he!

b.

Scan the Comp o nent Location Τε Number ju st determined and f ί n d t h+ desi r ed co mponent.

C.

Un der the BOARD L OCATIO N c coordinates for t h e d esi r e d co mp s

Figure 9-3. L ocating

components on scl%

rcuit

N umbe r

circ uit b oa r d wit h its illustration a nd locate ι m ροη e πτ by a r ea an d s h ape on t h e ill ust r a-

a d jacenttot h e Ci r c u it B oa rd Ill u stration a nd it Nu mb er of t h e desi r ed co mponent . e Sc h ematic Diag r a m Numb er in whic h t h e located. COM P O NEN TS

L OCAT E

2 ('.6n3 ~δΤ C671 Ε 615 C616 C617 C618 Γ 619 C624 C626

CR T B OA R D

D ON SC H E M ATIC DI AG R A M

2 C641 ς 643 C651

Ι

06 0 6 Q610 0 615 0646 0656 0665

0668

Ι

R6 0 4 β 605 R 6Π 8 R 609 R 610 R 614 R616 R 623 β 624

Η 626 Ια 62 7 β 63 Π τα 632

COMPONENT LOCATIO N . TABL E _ CRT CIRCUIT D1

CO MP O NEN TS LOCATE D ON SC HEM ATIC DIAG RAM C670 ('671 C673 C680 ('681 Ρ603 Ρ607 0669

0670 0672 0673

R 677 Ρ 679 β680

Α671 R673 Ρ674 A67S

U 617 υ 619 υ 619

CRT MA NU A L BI N D ER

Component

CI R C U IT

DIAGRA M

Α 6 ASS E MBLY CI R C U IT NUMB E R

IST R ATIO N F O R ΙυΜεΝΤ CIRC U IT kR D L OCATIO N

nd

Α6

C603 C609' C612 C615 C616 C617 C618 C619 C624 C626 C632 ς 643 ς 651 _

SCH E M B OA R D ( L OCATION LOCATIO N ( Ι τ

Ι

1C 4E 7C 7C 2ς 7D 7E 6Σ 4F 7G RG 3D 3Ε

ne

t h e Asse mb ly t h e compo n e n t is located in a corner boar d Outline .

Ι

Ι

3C 1G 1-3Ε 3D 3C 3Ρ 3E 3C 3D 2D

Ι

40 3θ Θ

CI R C U IT N UM BE R

Ι

5 ςΗΕΜ BOARD LOCATIO N LOCATION

Q656 ρ665 0668

2F 1, 2G

R 604 R 605 R608 R 609 Ρ 61 α β 614 R 616 R 623 R 625

4C 5D 4E 4E 7θ 7C 1C 4D 7F 7F 7G "

R 627 Β 630

2Θ 1θ 2Θ Ι

1Ε 7Ε 7 1-, 2D 3E 3D 3D 2E 2D 2D 1D

fo r t h e Asse mb ly c uit N um be r of t h e

in,

:ic

r ea d the g r i d

d iagrams

CI R C U IT N UM B ER 1635

and ci r cuit boa r d ill u strations .

5C ΗΕΜ BOA R D ~ LOCATIO N LOCATIO N - 51

C HASSIS 1

CI R C U IT NUMBER υ 635

5ςΗΕΜ BOA R D L OCATIO N LOCATION Ι

6J

~C HASSIS

will 4100-1 MAN UA L B I N D ER

3.

L ocate the α.

b.

Component an t he Schematic Diagra m

Locate and

pull out tabbe d page whose number and title correspo nd with t he Sc hem atic Diagram Nu mber just d eterm ined in thetable. Sche matic d iagram no menclat ure an d n u mbe rs are p rinted on the front si de of t he tabs if acing the front of the m anu al],

the SC HEM LOCATIO N col um n, read the gri d coordinates for the desired co mponent.

ε.

U nder

d.

U sing the Ci rcuit Nu mbe r a nd g ri d coordi n ates, locatet he component on the sc hematic

d iag r a m.

Scan th e Component Location Table adjacent to the sc hematic diag r a m a nd fi nd t he Circ uit N um ber of the desired component.

Α

Β

_

C

0

. Ι Ε

P U LL OUT PAGE TABS F OR SC HEMATIC DIAG RAMS

F

4

5

Β

7

CR T C4 RC UIT 1'4,05

ι ~( Ζ ΙΙ F~sa-s κ 2

ΦΝ 4 R~M

Ι,

=RO++

r~ UV` ., ΡτθΟb~

ι

`~ C

Ο~

CΠΜ

υΓ

Rb4

_ . _ ην 176ΟΛΉ

όό

I

κί, ε

s sv i

ξ cι,~s.+

θ

_

Ρα 5α_,

έ

ΗΡ

ΗΟΜ

z- η~Ι S ~491-4

~ ' Ι 3Ι~ 1

β543 2,2Κ

ΙΙ

αΕ )

SC HEM ATIC DIAG RAM NAME AND NU MBER

ς3516-81 4 206-33 ιααα

76ι. Η R624 Ι 2Κ

Numeral and letter at signal li n es to or f rom ot he r diagrams in dicates the gri d coordinates on another sc hematic (far example :

To iden tify any co mp onent in α sc h ematic d iagram and to locate t h at component on its respective circuit b oard .

Γ64 ι

ύ.0 ιi

ν 49J_3

ίο

R623'

VERT PL ATE DEFL

VALT SEP

I NVER T

Ρ-Ρ AUTO

ATTENUATORS

Α

CH 1 OR Χ k-ow CH 2 OR Υ 1

NORM

(0-.~

SWEEP

Ι

Ι

Ι

Ι

GENER ATOR A ND L OGIC

I TV FIELD

S WP

SGL

H OL DOFF

CH 1 BOTH

CH 2

VER TICA L MODE

ω ύ

ADD ALT

C HOP

VER TICAL PRE AMP AN D O U TPU T A MPL

α

ω Ζ _

ω

c ή φ

ω υ

° έ

>

m

ά ή.

Ι ΙΝΤ Α SOURC E

ΕΧΤ I NPU T

T R IG V I EW

L I NE ΕΧΤ Α TR IGG ER

Α T R I GG ER LEVEL BW L I M IT

Α /Β S WP

SEP

CH 1 CH 2 BW L I M I T C H O P ENA BLE

T R IGG ER V I EW

S I GN AL

BEAM F I N D

CHO P BL ANK

F ig ure 9

2235 Serv i ce

LTAG E S

CR T

T R I G'D/ RE ADY LED

A L T ERNAT E Β

V AR HOL DO FF

Β CH

ΑΛ

HOR IZ M ODE

AL T

I GN AL

ώι au-) αΙ

Ln Ο -~ αΙ

Ln ώ Ο - ~ UL) °° Ι Μ

X-AXIS

D

Ο F 0 ~ Ο υ >-

Β

I

NT EN S

Ζ DR I VE

PO WER SUPPL Y AND

H O R I Z PL AT E DEFL V OL TAG E S ΧΥ

σ ή Ι7 α

ω > υ ω

Β

S ELE CT E D

1

Mw Ό LA

Α

Doi

S WEEP S

-*-d

S WEEP

H O L OO FF Α

D EL AY TIME P OS I T I O N Β

Β

ΧΥ A MPL / H O R I Z O U T PU T

S I GN A L

D I SP

Z-AX I S A MPL Α & Β ΙΝΤΕΝ BEAM

Ι

Ι F I ND

PR O BE

ADJ U ST

ΕΧΤ Ζ AX I S ΧΥ ο Η

L I NE T R IGG ER

S I GNAL

L

.V . S UPPL I E S TO A LL BOA R DS

ε α ω

AC

m

BEAM

I

P O WER NPUT

F I ND

CHOP BL A NK

lasic

b lock

diagram .

4206-34

CH AC-G N O-0[

Ι

R 112

1

CH 1 [POSITION

S1 θ

CH

1

0R Χ

_

CH 1 HIGH- Σ Α ΝU ΑΤ 0R AND ND INPUT COUPL I N G

-

CH 1 ΒUF Q101 0ΕR Q15,

R 43 CAL

Ι Ι

Ι

Q3Ρ q 18

Ι

L

CN

Ι

Ι Ι

CH

1

-

Ι

CH

1

+

CH 1

1

ΑΤ7Ν U ΑΤΟR R 19

ι

Ε



2 OR

Υ

CH

CH 2 BUFFER ΑΜΡ IF 06θ , Q63 ρ65, Q68

2 HIGH-7 ATTENU ATOR S545 AN D I NPU T COUPL I NG Ι

Ι

AC-G N O-OC

Ι

551

Α

C H 1 AND H 2 ΑΤΤΕΝU ΑΤΟCRS

-

Ι

VER Ι CAL ΜΟD Ε

AMPL U80

ΓC Η

2

V O L TS/OI V

-

-

-

Ι

R 93

- -

SW 1 ΤOM LOGIC U537A U54 0 Α

2 PRE AMP g152, ρΙ 53 g164, ρ 165 υιθθ

S6θ

[Η 2

CHANNEL

CH

- υΙ

+ -

Ι Ι CH 2

1

C H OP

Ι

TR IG T R IG

Τ

ΒΟΤΗ CH 2 ADD ρL Τ

CH 2 -

CH

-

CH 2 P A RAPHAS E

[Η 2 LΟ4- Σ ΑΤΤ ΕΝ9ΑΤΟ R R 69

1 CH 1

1 PRE MP g Ιθ 2, Q1 θ 3 g114 ι Q115 U 13 θ

'

ΡΑ ΑΜΡ LΑ5 U 3θ

555 θ

CH

CH

VERTICAL AND OU 7F

T R IG + T R IG C HANNEL SWITCH , CR2θ 1 CR202, CR2θ 3 Q440 ι Q441

C HOP

DEL . ρΙ1 ρ2θ: Q2 ΘΕ

CR200

OSCI LLOATOR AND C H OP BLA NK I NG Ι U 540B , υ 5379 U537C , U 5370

L

Α

TR IG

Β SIG TR IGG ER

VI

TR IC

EW

52θθ

C H OP

R 721

SEC/0 I V

BL A NK ΧΥ

VA R

CH

AL T

1

SELE CTED

SYN C BSTIMING W Ι TC H AND R C A L TERN AT E DISPLAY SWITCHING U66ΘΕ , U68ΘΑ , θθ U 67 ΘΒ , U 665C

J

DELAY ΤΙΜΕ Θ DEL AY TIME POSITION ΊΊ-~ ΙΡΠ 5 ΙΤΙΟΝ CΠMP A R ATO R U655 R9644 SCH

Θ SIG

J SL O PE S6θ2 LEVEL

R6θ 2

θ TR IGG ER LEVEL CO MP ARATO R U6 Θ 5 Α , θ , [, D, Ε , F g6 Ιθ , 1162 θ

8 SWEEP LOGIC U66θθ , F, U67 ΘΑ , U 680C

, 0

M ITT T R IGG ER U625 A , Β , C, D g630 , Q631 RUN AF T ER DIY Q637, U66 ΘΑ , D

B END OF SWEEP COMP A R ATOR Q643

SEP

F--

θ M I LLER 5 ΥΕΕΡ ~ ρ 7 θ 9 , 771 ΘΑ , θ g712

θ TI M I NG AND AL T ERNAT E θ SW EEP

L OGIC U665 B , D ς/

\,

Q68 θ g685

\5/

Figure 9-5.

D

2235 Service

+ -

νΕRΤ VERT

DEFι DEFL

λ --i TRIGGER

CH

1 TRIGGER AMPLIFIER Q302, 0303 U310

S WITCH

USSSA, Β , U S65B ,

C, D C

CH - i

Α SOURCE

T R IGGER SOURC E DIODE SWITCHING CR372 , CR393 CR399, Q397 Q419

5392

INTERNAL TR IGGER ΑΜΡ L ϋ ' ER U352A, Β , C, 0, Ε

2 TRIGGER A MPL I F I ER Q327, Q328 0335 i

TRIGGERING

TNT TRIG

-

:νΕ L

SEP Ο 284 '85 4Ρ



a

Α Ε XT COUPLING

Θ 4 L IMIT CR226, CR227 CR226 , CR229

S WP S EP R280

Ιθω

L IMIT

5380

Ι

'2,?F

Ι

ΧΥ

R 893

5390

XBEAM AXISF IND SIC

ΘΕΑΜ

F IND

FOCUS F OCUS

FOCUS

CIRCUIT 0885

GRID

INTENSITY GRID _

ΙΝΤΕΝ5 LVL

ασ r- M 0 -4

Ι

πη ΑΓ

UNBLANKING LOG ιε Q586, C R 583 CR551

v

νΜ D +43V

POWER

ΙΝΡΙΤ '9θ 1 , VR9~1 CR90 , CR9 0 1 CR9~2, CR903 [R9 04

PREREGULATOR '9θ8, Q928 Q930 , Q9 0 7~ U 930

I NVERTER Q938, Q939, Q944 Q946, Q947

FEED BACK

XFMR Τ 948 LV POWER SUPPLIES

ιν TO A LL BLOCKS

3 Z-AXIS AMPL AND P OWER S UPPLY Τ

ιι H ORIFONTAL R 726



PROBE ADJU ST, ΧΥ AMPLIFIER, HOR17ONTAL O UTPUT

Ν

PO S ΙΤΙΟΝ

Α SWP HORI£ ΡRΕΑΜΡΙ Α DIS P g732 , Q737 + Q77 Β 01 S P Q742 : U760 8 S4P PR08E ADJUST

PROBE

ADJUST

HORI£

DUTPUT A MPUF I ER , Q775 Q7790 , Q78O Q785, ρ789

-

+ ΗΟ 1 ΙΣ DEFL - ΗΟ R ΙΣ DEFL

U985 4206-35

d b loc k d iag ram .

4206-35

2235 Service

T E ST WAVEFORM A N D VOLTAG E S ETUPS WAVEFORM ME AS UREMEN TS

DC VOLTAGE ME AS UREMEN TS

On th e left-hand p ages preceding the sc hematic diagrams are test waveform ill ustrations that are intended to aid in troubles hooting the instrument . To test the instrument for these waveforms, ma ke the initial control settings as follows:

Ty pical voltage measurements, located on the schematic diagram, were obtained with t he instrument operating u nder the conditions specified in the Waveforms Measurements setup. Control-setting changes requ ired for specific voltages are indicated on each waveforms page. M easurments are referenced to chassis groun d with t he exception of the Pr ereg ulator a n d Inverter voltages on Diagram 7. These voltages are referenced as in dicated on the sc hematic diagram .

Vertical (Bot h C hann els) POSITION Midrange VERTICA LC MOD E H1 MIA/ ιιΜιΤ Off (button out) 10mV V O LTS/DIV V O LTS/DIV Variable CA L detent INVER T Off (button out) ND-DC G ND AC-G

Horizontal Midrange POSITION Α HO RIZONTA L MOD E Α and Β S 0 EC/DI V .5 ms CA L detent S EC/DI V Varia ble Off (knob in) Χ 10 M agnifier Β DEL AY TIME 5 POSITIO N .0 Β T RIGGER LEVEL SLO PE

Fully cloc kwise O UT

Α T RIGGER VAR HO LDO FF

Mode LEVEL Α&Β ΙΝΤ Α SO UR CE

Minim um (fully ccw) Ρ-Ρ AUTO Midrange VERT MOD E ΙΝΤ

Changes to t he control settings for specific waveforms are noted at the beginning of each set of waveforms. Input signals and hoo kups re quired are also in dicated, if needed, for eac h set of waveforms.

RE CO MMEN D E D T E ST

E QU I PMEN T

Test equi pment in Table 4-1 in the " Performance Chec k Procedu re", section 4 of this manual, meets the re quired specifications for testing this instrument .

P OWER S UPPLY ISO L ATIO N PR OC ED URE Each regulated su pp ly h as numerous feed poi nts to external loads throug hout the instrument . The power distribution diagram is used n conjunction with t he sc hematic d iagrams to determine those loads that can be isolated by removing service ju mpers an d those that cann ot .

If α p ower su pp ly comes up after lifti ng one of t h e main jumpers from t h e power su pp ly to isolate t h at su pp ly, it is very probable t h at α s h ort exists in t h e circuitry on th at su pply line . By lifting ju mpers farther down th e line, th e circuit in whic h α short exists may b e located.

Th e powe r distri bution an d circuit b oard interconnections diagrams are divided into circuit b oards. Each power su pp ly feed to α circuit board is indicated b y t h e sc hematic diagram number on whic h t h e voltage appears . Th e schematic d iagram gri d location of α service j um per or component is given ad jacent to the component number on the power distri bution and circuit board interconn ect d iagrams.

Always set the PO WER switch to OFF before soldering or unsoldering service ju mpers or ot her components and before attempting to measure component resistance values .

i

C H ASSIS M OUN TE D PA RTS CIRCUIT NU MBER

SCHIM Ι NUMBER ι LΟ C ΑΤΙΟΝ

C9272 C9273

2 2

8S 2S

DL9210

2



DS9150

7



F9001

7



FL 9001

1

7

1



J9100 J9376 J9510 J9800 J9900

1 3 1 7 6

1Α 5Α 6Α 4Α 2E

Ρ 9272 Ρ9273 Ρ 9778 Ρ9788 Ρ9070-1 Ρ9070-2 Ρ9070-3 Ρ9870-10 Ρ9870-12

7 7 7 7 7 7 7 7 7

5Ρ 5Ρ 4Ρ 4Ρ 81 SJ 8-1 4Ρ 3Ν

Ι

CIRCUIT NU MBER

Ι NUMB E R ι L OCATIO N

Ρ 9870-14 Ρ 9870-1 Ρ 9870-2 Ρ 9870-3 Ρ 9870-4 Ρ9870-5 Ρ 9870-7 Ρ9870- 8 I

Q9070

7 7 7 7 7 7 7 7 1

7

8Ρ 8Ρ 8Ν 7Ν 7Ν 6Ρ 5Ρ 7Ρ 1

8,1

R9100 R9272 R9273 R9376 R9510 R9521 R9644 R9802A R9802B

1 2 2 3 1 4 5 7 7

1Α 8s 2S 5Α 6Α 3Α 5D 2Α 3Α

V9870

7



W9272

2

8s

WIRE

LINE NAME

NO . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

W9001 (Al TO Α3) DIAG NO. WIRE & GRID COORDINATES NO .

BEAM F IND CH 1 POS CW CH 1 POS CCW Α / Β SWP S EP +8 .6 VG TRIG VIEW CH 2 P OS CW CH 2 P OS CCW 5H -2 BW LIMIT CHOP ENABLE -8 .6 Vει VALT CH 1 Α O NLY Β LEVEL TV T RIG ENABLE ZyΑ S LOPE Α T RIGGER LEVEL

7,4F

2,713 2,8D 2,9D 2,613 2,4 Κ 3,4C 8,5 Ρ 5,2E 2,5 Β 5,1 E 5,9F 4,9 Β 2C 3,8 Ν 3,8 Μ

Ρ9700 (Α4 ΤΟ Α 1)

L INE NAME H ORIZ POS +AUTO LEVEL C W -AUTO LEVEL CCW Ρ-Ρ SS RESE T Β O NLY HALT Β S LOPE TRIG'D LED SS G ND CH 1 Τ CH 2 Τ V MODE Τ ΕΧΤ L INE

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39

2,2D 2,3D 2,2L 8,4 Ρ

PIN NO .

L INE NAME

DIAG NO . & G RID COORDINATES

1 2 3 4 5 6 7 8 9 10

Α DISP Β DISP Β S WP Η . Ο .2 Η . Ο .1 H .O . COM Α S WP G ND Β RETRAC E Α GATE

6,5E 6,5E 5,6E 4,4D 4,4D 4,4D 4,8 Ν 5,7E 5,7E 4,7 Ν

DIAG NO . & GRID COORDINATES 6,313 3,8Μ 3,8 Μ 4,813 4,5 Β 5,2E 5,2E 5,8F 4,9K 4,98 3,6C 3,2C 3,3C 3,3C 3,7C 3,6C 3,7C

TNT GND ΕΧΤ ΙΝΡ U Τ

3,6C 3,5C

W9700 (Α 1 ΤΟ Α4) W IRE NO.

L INE NAME

1 2 3 4

Α DISP Β DISP Β S WP Η . Ο .2 Η . Ο .1

5 6 7 8 9 10

6,5D 6,5D 5,6F 4,4D 4,4D 4,4D 4,8 Μ 8,2 Ν 5,6F 4,7 Μ

H .O. COM Α SWP G ND Β RETRAC E Α GATE

W9400 (Α1 ΤΟ Α5)

DIAG NO . ΝΙ Ο .

LIN E NAME

1 2 3 4 5 6 7 8 9 10 11

Β SIGNAL Β S LOPE GND Β LEVEL Α DISP Β O NLY § ΕΡ Β NTENSITY LEVEL Ζ D RIVE H ALT Β DISP

5,9F 5,9F 8,6 Ν 5,9F 5,1S 5,2F 5,2S 7,3C 7,3E 5,2F 5,2S

12 13 14

CH 1 SELECTED Α O NLY DT W IPER

5,2F 5,1F 5,5F

I

Ι

COORDINATES

Ι

ΝΙ Ο . 15 16 17 18 19 20 21 22 23 24 25 26 27

DIAG NO. & G RID COORDINATES

DIAG NO. Ι

L INE NAME GND GND Β RETRACE G ND VALT Α SWP ALT SYNC Β SWP GND GND -8.6 VA +5.2 VA +8.6 VA

Ι

COORDINATES 8,6 Ν 8,6 Ν 5,6F 8,6 Ν 5,2F 5,5F 5,1F 5,6F 8,6 Ν 8,6Ν 8,6Ν 8,5 Ν 8,5 Ν

Ρ9705 (Α4 ΤΟ Α 1) PIN NO .

L I NE

1 2 3 4 5 6 7 8

NAME

GN D +SWP -S WP GND Χ AXIS SIG -8 .6 V c +8 .6 VB +30 VB

WI RE

LINE

NO .

NAME

DIAG NO . & G R ID COOR DI N AT E S 6,9E 6,5 Κ 6,7 Κ 6,9E 6,4E 6,9E 6,8E 6,8E

L I NE NAME

NO. 1 2 3 4 5 6 7 8

22 23 25 26 27 28 29 30 31 32 33 34 35 36 37_ 38 39

W9401 ( Α 5 TO Α 1) DIAG NO. & GR ID WI RE COO R DI N ATE S ]F NO .

1 Β SIG N A L 5,9G 2 Β S LO PE 5,9G 3 GND 5,4G 4 Β LEVEL 5,9G 5 Α DIS P 5,1S 6 Β_ O NL Y 5,2G 7 S EP 5,2S 8 Β N T EN SITY LEVEL 5,4 Ρ 9 Ζ D R I VE 5,5S 10 HALT 5,2G 11 Β DIS P 5,2S 12 C H 1 S ELE C T E D 5,2G 13 Α O NL Y 5,1G 14 DT WI PER 5,5G

I

WI RE

W9000 ( Α3 TO Al) DIAG NO . WI RE & G R ID COO R DI N ATES NO .

1 21 BEAM F I N D 7,4 F 2 C H 1 P OS CW 2,2D 3 C H 1 P OS CCW 2,3D 3,9 4 Α /Β S WP S EP 24 2,2 L +8.6 VG 5 8,4 Ν 6 T R IG VI EW 2,613 7 C H 2 P OS CW 2,8D 8 C H 2 P OS CCW 2,9D 9 CH 2 2,613 10 BW L I M IT 2,4 Κ 11 CH O P EN A BLE 3,4C 12 -8 .6 Vει 8,5 Ν 13 VA LT 5,2E 14 CH 1 2,58 15 Α ONLY 5,1 E 16 Β LEVEL 5,9E 17 TV T R IG EN A BLE 4,98 18 ΧΥ 3,2C 19 Α S LO PE 3,8 Ν 20 Α TR IGG ER LEVEL 3,8 Μ

W I RE NO .

W9705 (Α 1 ΤΟ Α 4)

15 16 17 18 19 20 21 22 23 24 25 26 27

L I NE NAME GND +S WP -S WP GND Χ AXIS SIG -8 .6 Vc +8.6 VB +30 VB

L I NE

8,3 Ν 6,5L 6,7 L 8,3 Ν 6,4E 8,3 Ν 8,3 Ν 8,2 Ν

Ι

NAME

H O R IZ P OS +A U TO LEVEL CW -A UTO LEVEL CC W Ρ-Ρ S S RE S ET Β O NL Y H A LT Β S LO PE T R IG'D _ LED SS GND CH 1 Τ CH 2 Τ V M OD E Τ ΕΧΤ L I NE TNT GΝD ΕΧΤ I NPU T

L I NE

NAME

GND GN D B RETRACE GN D VA LT Α SWP A L T SYN C Β SWP GND GND -8 .6 VA +5 .2 VA +8 .6 VA

DIAG NO . & G R ID COOR DI N ATE S

DIAG NO . & G R ID COO R DI N AT E S 6,38 3,8 L L 4,8C 4,58 5,2E 5,2E 5,9E 4,9 Κ 4,9Β 3,6C 3,2C 3,3C 3,3C 3,7C 3,6C 3,7C 3,6C 3,5C

Ι

DIAG NO . & G R ID COO R DI NAT E S 5,4G 5,4G 5,6G 5,4G 5,2G 5,5G 5,1G 5,6G 5,4G 5,4G 5,4G 5,3G 5,3G

ω 9αΟο

5T:-E TAB E

L

ΑΙ

2235 azoe

-z z

ΜΑi η

I

CI RCUΙΤ

'

Ι

ω94 Ο1 Sεε TAB

LE

Α5

ALT SWPLObIC

E OARD Ι N TER CON NECT10Ν5

Γz c [

Γ

ί α

2235 Serv i ce

Α

ι

Β

τ

C

r

~

ι

Ε

ι

F

2

3

4

F ig ure

ισ

2 LL σ

α α

Ζ F Ψ }Ο

ασ Να

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©Static Sensitiv e See

Maintenance

Dev ices Section

CO MP ONENT NU MBER EXAMPL E Component

Number

Α23 Α2 R1234 Ι Sc ύecumatι c Assembly j11 Ι ----. . εiε e Νυ mύeι Subassembly N umber Numb er (if used)

Ch assis mounte d ςpmpenenis h ave πα Aswmbly Nυm h eι ρι eΙίκ -see end of ReplaceaUle EleCt FLCal Parts List

4246-36

9-6. A2-Atte nu ator hoa rd .

A2 -ATT ENU ATO R B OA R D CIRCUIT

NUMBER Ι NUMB R Ι Α71 Α72 Α751 Α752 C2 C3 C4 C5 C6 C9 C10 C11 C12 C13 C17 C21 C26 C27 C30 C35 C38 C52 C53 C54 C55 C56 C59 C60 C61 C62 C63 C67 C71 C76 C77 C80 C85 C85 C88

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

SCHEM

SCHEM

NUM BR Ι NUMB E R Ι NUMBER Ι UMBR Ι C90 C91 C93 C94 C96 C97 CR 7 CR 18 CR 57 CR 68 E90 E91 L93 L 96 Ρ 9103-1 Ρ 9103-2 Ρ 9103-3 Ρ 9103-4 Ρ9108-1 Ρ 9108-2 Ρ9108-3 Ρ 9108-4 Ρ 9200-1 Ρ 9200-2 Ρ9991-1 Ρ9991-2 Ρ9991-3 Q13 Q15 018 063 Q65 Q68 R2 R3 R4 R5 R6 R7

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

R8 R9 R 10 R 11 R 13 R 14 R 15 R 17 R 18 R 19 R 21 R 22 R 23 R 25 R 26 R 27 R 29 R 30 R 31 R 33

R 34 R 35 R 37 R 38 R 39 R 41 R 42 R 43 R 46 R 47 R48 R 52 R 53 R54 R 55 R 56 R 57 R 58 R 59

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

CIRCUIT SCHEM NUMBER Ι UMBER

R 60 R61 R 63

R 64 R 65 R 67 R 68 R 69 R71 R72 R 73 R 75 R 76 R 77 R 79 R 80 R 81 R 83 R 84 R 85 R 87 R 88 R 91 R 93 R 96 R 97 R 98 S1 S10 S51 S60 U 10 U 30 U 60 U 80 W43 W93 W94 W96

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

C H 1 & C H 2 ATT ENU ATO RS ASS EMBLY Α 2 CIRCUIT SCHEM NUMBER Ι L0C Α7ΟΝ Ι LOCCA ΤΟΝ

NUMB R Ι L OCATIO N Ι LOCATIO N

Ι

ΑΤ00001 ΑΤ2 ΑΤ51 ΑΤ52

2D 2E 6D 6E

2Θ 2C 4Β 4C

C93 C94 C96 C97

98 3Η 98 7Η

2F 1D 4F 3D

C2 C3 C4 C5 C6 C9 C10 C11 C12 C13 C17 C21 C26 C27 C30 C35 C38 C52 C53 C54 C55 C56 C59 C60 C61 C62 C63 C67 C71 C76 C77 C80 C85 C85 C88 C90 C91

28 2F 2D 2D 113 213 3G 2E 2E 1Η 2Η 2L 3Μ 3Ν 3Μ 5Ν 4Ρ 6Β 6F 6D 6D 6G 7G 7G 6Ε 6E 6Η 6Η 7L 7Μ 7Ν 8Μ 9Ν 9Ν 9Ρ 88 88

18 2C 2Β 1Β 2C 2D 1C 2C 1C 2C 1C 1E 2E 2E 2E 1E 1E 3Β 3C 48 3Β 4C 3D 3C 4C 3C 4C 3C 3E 3E 4E 4E 3E 3E 3E 2F 4F

CR 7 C R 18 C R 57 CR 68

1G 2Η 6G 6Η

2C 2C 4C 4C

E90 E91

8Β 8Β

3F 3F

L93 L96

9Β 98

3F

Ρ9103-1 Ρ 9103-2 Ρ9103-3 Ρ 9103-4 Ρ 9108-1 Ρ9108-2 Ρ 9108-3 Ρ9108-4 Ρ9200-1 Ρ9200-2 Ρ 9991-1 Ρ 9991-2 Ρ 9991-3

2S 2S 3S 3S 7S 6S SS 7S 9L 9L 8Β 9Β 9Β

2F 2F 2F 2F 4E 4E 4E 4E 3Α 3Α 3F 3F 3F

Q13 Q15 018 063 Q65 Q68

1Η 2Η 2Η 6Η 7G 6Η

2C 2D 1C 4C 3D 3C

R2 R3 R4 R5 R6

2Α 2F 28 2F 2G

2Α 1C 2Α 1C 2C

Ι

NUMBER Ι L OCATIO N Ι L 000ΑΙΟΝ 87 R8 R9 R10 R11 R13 R14 R15 R17 R18 R 19 R 21 R22 R 23 R 25 R26 R 27 R 29 R 30 R31 R33 R34 R35 R37 R38 R39 R41 R 42 R 43 R46 R47 R48 R52 R53 R54 R55 R56 R57 R58 R59 R60 R61

3F

2D 2Β 2G 3G 3G 1G 2Η 2G 1Η 2Η 1 .1 3L 3Μ 2Μ 2Μ 3Μ 2Ν 2Ν 3Μ 3Ν 3Μ 4Ν 5Ν 4Ρ 4Ρ 4Ρ 4Ρ 5Ρ 5Ρ 3Η 3Η 3Η 6Α 6F 68 7F 6G 6D 6Β 7G 7G 7G

BOARD NUMBER Ι LOCATION Ι L OCATIO N

Ι

1Β 2Α 1C 1D 1E 3D 2C 2D 1C 1D 2D 1E 1E 1E 1E 2D 2E 2E 3E 3E 3E 3E 1E 2E 1E 1 F 1E 1 F 2F 1D 1D 1D 4Α 3C 4Α 3C 4C 3Β 4Α 3C 3D 3E

R63 R64 R65 R67 R68 R69 R71 R72 R73 R75 R76 R77 R79 R80 R81 R83 R84 R85 R87 R88 R91 R93 R96 R97 R98

5G 613 7G 6Η 6Η 6J 7L 5L 5L 5L 7Μ 7Ν 7Ν 7Ν 8Ν 8Μ 8Ν 9Ν 8Ν 9Ρ 9Μ 9Μ 7Η 8Η 8Η

4D 4C 4D 3C 3D 4D 3E 3E 3E 3E 3D 4E 4E 4E 4E 4E 4E 3E 4E 3E 3E 4F 3D 3D 3D

S1 S10 S51 S60

4Β 4Η 5Β 5Η

2Α 2D 4Α 4D

U 10 U 30 U 60 U 80

2F 1Ν 6F 6Ν

1C 2E 3C 4E

W43 W93 W94 W96

5Ρ 9Μ 9C 9C

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2F 4F

ASS EMBLY Α 3 CIRCUIT NUMBER] J9200-1 ~ J9200-2

LOCATIO N ] LOCATIO N 9L 9L

3C 3C

Ι

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Ι

R89 R92

L OCATIO N ] LOCATIO N 9Κ 9Κ

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NUMBER Ι LOCATIO N Ι L OCATIO N Γ .. 9 S90 Κ t 2C

Ι

BOARD NUMBER Ι LOCATIO N Ι LOCATION

NUMBER Ι LOCATIO N Ι LOCATIO N

Ι

BOARD NUMBER Ι LOCATIO N Ι LOCATIO N

Partial Α 3 also shown on diagrams 2, 3, 4, 5, 6, 7 and 8.

C H ASSIS M O UN T E D PA R TS NUMBER Ι (

J 9100 J 9510

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Figure 9-7. Al-Main board.

©Static Sensitive Devices See

Maintenance Section

COMPONENT NUMBER EXAMPLE Component Number Α23 Α2

4206-37

R 1234

L

~ 5ciιemα1fc Assemδφ }J +++ LL ..~~ Giι cuit Numbe mbe ε sυbas sem6ly Number MumOer (i! υτ ed) Chaas -mourned cumpuoeuts h ave no Asaem hί yNumber ρre5ε -see Ι en d of Re p lacea ble Ε f ecirical Parts L ist_

Al-MAIN B OA RD CIRCUIT NUMBER C114 C115 C116 C125 C126 C130 C133 C164 C165 C175 C176 C180 C198 C200 C201 C210 C215 C220 C225 C226 C228 C229 C237 C239 C240 C241 C242 C250 C251 C255 C262 C274 C281 C292 C312 C337 C363 C369 C381 C389 C390 C392 C396 C397 C405 C408 C414 C415 C418 C419 C420 C421 C451 C453 C459 C473 C479 C480 C494 C499 C501 C502 C503 C504 C505 C506 C507 C517 C518 C519 C520 C525 C527 C531 C537 C538 C539 C540 C545 C547 C553

SCHEM Ι NUMBER Ι 2 2 2 2 2 2 2 2 2 2 2 2 2 8 8 2 2 8 2 2 2 2 2 2 2 2 2 2 2 2 2 8 2 2 3 3 3 3 3 3 3 3 7 3 3 3 3 3 3 3 3 3 8 3 3 3 3 3 8 8 4 4 4 4 4 4 8 4 4 4 4 4 4 4 2 2 2 2 2 2 3

CIRCUIT NUMBER C561 C565 C590 C603 C635 C646 C647 C648 C649 C673 C762 C764 C770 C775 C777 C779 C780 C782 C785 C787 C789 ς 796 ς 797 ς 799 C824 C825 C828 C832 C835 C845 C847 C849 C851 C853 C854 C855 C871 C873 C875 C877 C879 C893 C904 C906 C907 C908 C917 C919 C922 C925 C940 C941 C942 C943 C944 C945 C954 C956 C960 C961 C962 C963 C968 C970 C975 C976 C979 CR 133 CR 183 CR 200 C R 201 CR 202 CR 203 CR 226 CR 227 C R 228 CR 229 C R 372 C R 381 C R 393 C R 399

SCHEM Ι NUMBER Ι 3 3 8 5 5 5 5 5 5 5 6 6 6 6 6 6 6 6 6 6 6 8 8 8 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 2 2 2 2 2 2 2 2 2 2 3 3 3 3

NUMBER

C R414 C R415 C R 503 C R 508 C R 509

C R 514 C R 518

C R 551 C R 556 C R 583 C R 712

C R 764 C R 765

C R 768 C R 770 C R 780

C R 805 C R 818 C R 820

C R 823 C R 824 C R 825

C R 829 C R 840 C R 845

C R 851 C R 853 C R 854 C R 855 C R 879

C R 901 C R 902 C R 903 C R 904 C R 907 C R 908 C R 920 C R 945 C R 946 C R 947 C R 954 C R 955 C R 956 C R 957

C R 960 C R 961

C R 962 C R 963 C R 967

C R 970

DS856 DS858 DS870 E200 E201 E272 E590 E907 L 142 L 143 L 192 L 193 L 960 L961 Ρ9644-1 Ρ9644-2 Ρ9644-3 Ρ9802-1 Ρ9802-2 Ρ9802-3 Ρ9802-4 Ρ9802-5 0102 Q103 Q114 Q115 Q152 Q153 0164 0165 0202

SCHEM Ι NUMBER 1 3 3 4 4 4 4 4 7 3 7 5 6 6 6 6 6 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 8 8 8 8 7 2 2 2 2 7 7 5 5 5 7 7 7 7 7 2 2 2 2 2 2 2 2 2

NUMBER Q203 Q206 Q207 0230 0231 Q254 Q255 Q256 Q257 Q283 0284 Q285 Q302 Q303 Q327 Q328 Q382 Q382 Q384 Q397 Q402 Q403 Q413 Q419 Q420 Q421 0422 Q423 Q428 Q429 Q440 Q441 Q460 Q463 Q509 Q511 Q525 Q576 Q578 Q586 Q756 Q770 Q775 Q779 Q780 0785 0789 Q804 Q814 Q825 Q829 Q835 Q840 Q845 Q885 Q908 Q928 Q930 Q935 Q938 Q939 0944 Q946 Q947 R 100 R 101 R 102 R 103 R 104 R 105 R 106 R 108 R 109 R 114 R 115 R 120 R 121 R 122 R 125 Ρ 126 R 130

ι UMBR Ι 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 2 2 3 3 4 4 4 4 4 7 6 6 6 6 6 6 6 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

NUMBER ι NUMBE R Ι Ρ 131 R 132 R 133 R 135 R 136 R 138 R 139 R 142 R 143 R 144 R 145 R 150 R 151 R 152 R 153 Ρ 154 R 155 R 156 R 158 R 159 R 164 R 165 R 170 R 171 R 172 R 175 R 176 R 180 R 181 R 182 R 183 R 185 R 186 R 188 R 189 R 192 R 193 R 194 R 195 R 200 Ρ 202 R 203 R 204 R206 R207 R 210 R 212 R 213 R 215 R 216 R 217 R 218 R 219 R 220 R 222 R 223 R 225 R 226 R 227 R 230 R 231 R 233 R 234 R 235 R 236 R 239 R 240 R 241 R 242 R 244 R 245 R 250 R 251 R 254 R 255 R 256 R 257 R 258 R 259 R 261 R 262

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 8 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

SCHEM NUMBER Ι NUMBER R 266 R 267 R 268 R 269 R 270 R 271 R 279 R 281 R 282 R 283 R 284 R 285 R 286 R 287 R 288 R 289 R 292 R 293 R 301 R 302 R 303 R 304 R 305 R 306 R 307 R 309 R 310 R 311 R 312 R 314 R 315 R 317 R 318 R 319 R 321 R 322 R 324 R 326 R 327 R 328 R 329 R 330 R 331 R 332 R 335 R 336 R 337 R 339 Ρ 340 R 342 R 343 R 344 R 346 R 347 R 349 R 350 R 351 R 352 R 353 R 356 R 357 R 358 R 359 R 360 R 361 R 363 R 365 R 366 R 367 R 369 R 372 R 374 R 381 R 382 R 384 R 385 R 386 R 389 R 390 R 392 R 393

TABLE ( εΟΠt)

Ι

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3

Al-MAIN B OA R D CIRCUIT NUMBER R395 R397 R398 R399 R402 R405 R407 R408 R411 R412 R413 R414 R415 R416 R417 R419 R420 R421 R422 R423 R424 R426 R427 R428 R429 R432 R433 R434 R435 R440 R441 R442 R443 R444 R446 R448 R449 R451 R452 R453 R455 R457 R458 R459 R460 R461 R462 R463 R464 R465 R469 R470 R471 R473 R474 R478 R479 R483 R486 R487 R494 R499 R501 R502 R503 R504 R505 R507 R509 R510 R511 R512 R 513 R 514 R516 R517 R518 R523 R524 R525 R526

SCHEM Ι NUMBER Ι 3 7 7 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 2 2 2 2 2 3 2 2 8 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 8 8 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4

NUMBER R527 R528 R538 R539 R540 R541 R544 R545 R547 R548 R549 R555 R556 R558 R560 R561 R562 R564 R565 R566 R568 R569 R571 R572 R573 R574 R576 R577 R578 R580 R586 R645 R646 R647 R648 R649 R673 R676 R756 R757 R758 R759 R760 R761 R762 R764 R766 R768 R770 R773 R775 R776 R777 R778 R779 R780 R782 R783 R785 R786 R787 β788 R789 R792 R793 R796 R797 R799 R800 R804 R805 R810 R 814 R 818 R820 R822 R823 R825 R826 R828 R830

CIRCUIT Ι NUMBE R Ι NUMBER 4 4 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 6 4 4 4 4 4 4 4 4 4 4 7 5 5 5 5 5 5 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 8 8 8 7 7 7 7 7 7 7 7 7 7 7 7 7

R832 R834 R835 R836 R840 R841 R842 R844 R845 R849 R851 R852 R853 R854 R858 R860 R870 R871 R872 R873 R874 R875 R877 R879 R885 R886 R888 R889 R890 R891 R892 R893 R894 R905 R906 R907 R908 R910 R912 R913 R914 R915 R916 R917 R919 R921 R922 R925 R926 R927 R928 R929 R930 R934 R935 R937 R938 R939 R940 R941 R942 R943 R944 R945 R946 R947 R949 R964 R966 R971 R976 R978 R Τ236 S901 Τ390 Τ906 Τ944 Τ948 ΤΡ397 ΤΡ460 ΤΡ504

SCHEM Ι NUMBER 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 8 8 7 7 7 2 7 7 7 7 7 3 3 4

Ι NUMBER ΤΡ537 ΤΡ842 ΤΡ900 ΤΡ940 ΤΡ950 ΤΡ961 U 130 U 180 U225 U310 U335 U350 U350 U350 U350 U350 U426 U426 U460 U460 U460 U460 U460 U460 U480 U480 U480 U480 U502 U 504 U 504 U 506 U 506 U 532 U 532 U 532 U 532 U 537 U 537 U 537 U 537 U 540 U 540 U 555 U 555 U 555 U 555 U 565 U 565 U 565 U 758 U930 U975 VR200 VR645 VR712 VR764 VR782 VR828 VR925 VR935 VR943 282 283 310 335 350 351 408 410 419 428 W429 W494 535 537 538 555 W556 W558 W560

W W W W W W W W W W W W W W

(co nt) SCHEM Ι UMBE R Ι NUMBER 2 7 7 7 7 8 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 2 2 2 2 2 2 3 3 3 3 3 3 3 6 7 7 2 5 5 6 6 7 7 7 7 2 2 3 3 3 3 8 3 3 3 3 8 2 2 2 3 8 3 3

W570 W582 W590 W591 W592 W602 W603 W635 W649 W732 W770 W780 W885 W954

W955 W956 W959 W960 W961 W964 W965 W968 W971 972 974 975 976 977 979 991 992 993 995 997 998 999 9040 9190 9778 9788 9800 9001-10 9001-11 9001-12 9001-13 9001-14 9001-15 9001-16 9001-17 9001-18 9001-19 9001-1 9001-20 9001-21 9001-22 9001-23 9001-24 9001-25 9001-26 9001-27 9001-28 9001-29 9001-2 9001-30 9001-31 W9001-32 9001-33 9001-34 9001-35 9001-36 9001-37 9001-38 W9001-39 W9001-3 9001-4 9001-5 9001-6 9001-7 9001-8 9001-9 9070-1

W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W

Ι Ν U ΜΒR Ι 6 4 8 8 8 5 5 5 5 6 6 6 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 7 7 6 6 7 2 3 8 5 2 5 5 4 3 3 7 3 6 3 3 4 4 5 5 5 4 2 4 3 3 3 3 3 3 3 3 3 2 2 8 2 2 2 2 7

NUMBR

W 9070-2 W 9070-3 W 9103-1 W 9103-2 W 9103-3 W 9103-4 W 9108-1 W 9108-2 W 9108-3 W 9108-4 W 9150-1

W9150-2 W9400-10 9400-11 9400-12 W9400-13 W9400-14 W9400-15 W9400-16 W9400-17 W9400-18 W9400-19 9400-1 9400-20 9400-21 9400-22 W9400-23 9400-24 9400-25 9400-26 9400-27 9400-2 9400-3 9400-4 9400-5 9400-6 9400-7 9400-8 9400-9 9440-1 9440-2 9440-3 9440-4 9700-10 9700-1 9700-2 9700-3 9700-4 9700-5 9700-6 9700-7 9700-8 9700-9 9705-1 9705-2 9705-3 9705-4 9705-5 9705-6 9705-7 9705-8 9870-10 9870-12 9870-14 9870-1 W9870-2 9870-3 9870-4 9870-5 9870-7 9870-8 9991-1 W9991-2 W9991-3

W W

W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W

SCHEM Ι NUMBER 7 7 2 2 2 2 2 2 2 2 7 7 5 5 5 5 5 8 8 5 8 5 5 5 5 5 8 8 8 8 8 5 8 5 5 5 5 7 7 2 2 2 2 4 6 6 5 4 4 4 4 8 5 8 6 6 8 6 8 8 8 7 7 7 7 7 7 7 7 7 7 8 8 8

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SO WAVE REFERENCED TO -3V + OR - D EPEN D I NG ON SETTI NG OF SEP POT AMPL IT UDE ALSO DEPENDS ON SETTING OF SEP POT 42 θ6-93

VER TICAL PRE AMP & OUT PU T A MPLI F I ER

ASS EMBLY Α 1 CI R C U IT NUMBER

SCHEM LOC ATI O N

BOAR D LOCATIO N

2D 3D 2E 3E 3F 3F 5F 8D 9D 9E 9F 9F 5F 5J 5J 8J 4Κ 4L 3L 4Ν 5Μ 5Μ 6Μ 5Μ 7Ν 3Ν 3Ν 5Ρ 2Μ 1Ν 9Μ 50 6D 9Μ 5C 4D

3C 3C 3C 3C 3C 2C 2G 3D 3D 3D 3D 2D 3C 1D 1C 2C 1C 1D 1D 1E 2D 1E 1D 2D 2E 1E 1E 2G 1F 2E 1J 3G 3G 2Η 1J 2J

C114 C115 C116 C125 C126 C130 C133 C164 C165 C175 C176 C180 C198 C210 C215 C225 C226 C228 C229 C237 C239 C240 C241 C242 C250 C251 C255 C262 C281 C292 C537 C538 C539 C540 C545 C547

Ι

CI R C U IT SC HEM BOAR D NUMBER Ι LOCATIO N 11 LOCATION ι 0206 Q207 0230 Q231 Q254 Q255 Q256 0257 0283 Q284 Q285 Q440 Q441

4J 6J 7Ν 3Ν 7Ρ 3Ρ 8Ρ 2Ρ 3Μ 2Ν 2Ρ 6G 6G

1C 1D 2E 1E 1F 1F 2F 1 F 2E 2E 2E 6D 6D

R100 R101 R102 R103 R104 R105 R106 R108 R109 R114 R115 R120 R121 R122 R 125 R126 R 130 R131 R132 R133 R 135 R 136 R138 CR 133 5F 2C R139 CR 183 5F 2E R142 CR 200 5G 2C R143 CR 201 6Η 2D R144 CR 202 5Η 2C R145 CR 203 6Η 2D R150 C R 226 4L 1D R151 C R 227 4L 7D R152 CR 228 4L 1D R153 C R 229 4L 1D R154 R155 L142 1G 2C R156 L143 3G 2C R158 L192 8G 2D R159 L193 9G 2D R164 R165 Q102 2Θ 2C R170 Q103 3Β 3C R171 0114 2 E 3C R172 1E 0115 3E 3C R175 Q152 8Θ 2D R176 3D Q153 9θ 3D 3D R180 Q164 8Ε 3D R181 Q165 9E 3D R182 Q202 5Η 2C R183 Q203 6J 2D R185

2Α 3Α 28 38 2Β 3Β 2Θ 2Β 3Β 2D 3D 2E 3E 3E 2E 2E 2F 3F 5F 5F 4F 4F 5F 5G 2Η 4Η 2Η 3Η 88 98 88 9Β 8Β 9θ 9θ 98 98 8D 9D 9E 9D 9E 9E 8F 8F 9F 6 1F 6F 7F

3C 3C 2D 2C 2C 2C 2C 2C 3C 3C 3C 3C 3C 3C 3C 3C 3C 3C 1G 2C 2C 2C 2C 2C 2C 2C 2C 2C 3E 3D 2E 2D 2D 2D 2D 2D 3D 3D 3D 3D 3D 3D 3D

Partial Α 1 also

3D 2G 2E 2D

CI R C U IT NUMBER R186 R188 R189 R192 R 193 R 194 R 195 R 200 R202 R203 R204 R206 R207 R210 R212 R213 R215 R216 R217 R218 R219 R222 R223 R225 R226 R227 R230 R231 R233 R234 R235 R236 R239 R240 R241 R242 R244 R245 R250 R251 R254 R255 R256 R257 R258 R259 R261 R262 R266 R267 R268 R269 R270 R271 R279 R281 R282 R283 R284 R285 R286 R287 R288

SC HEM L OCATIO N 7F 5F 6F 8Η 9Η 8Η 9Η 5G 5Η 5Η 5Η 4Η 6-1 5J 5J 5J 5J 4J 6J 4J 6J 5Κ 5Κ 7J 4L 4Μ 7Μ 3Μ 5Ν 6Μ 4Μ 5Ν 5Μ 5Μ 5Μ 5Μ 5L 6L 7Ν 3Ν 7Ν 3Ν 8Ρ 2Ρ 7Ρ 3Ρ 5Ρ 5Ρ 7Ρ 3Ρ 6Ρ 4Ρ 6Ρ 5Ρ 3Μ 2L 2Μ 3Μ 2Ν 2Ρ 2Ν 2Ρ 2Ν

BOAR D LOCATIO N 2D 2D 2E 2D 2D 2D 2D 2D 2C 2C 2D 2C 2D 1C 1C 1D 1C 1C 1D 1C 1D 1C 1D 1C 1C 1D 2E 1E 1E 2E 1E 1E 2E 1E 1D 2D 2D 2D 2E 1E 1E 1E 2F 1 F 2F 1F 1 F 1G 1 F 1 F 2F 1 F 2F 1 F 2E 1E 2E 2E 2E 2E 2E 1E

Ι

CI R CU IT NUMBER

SCHEM LOCATIO N

BOAR D L OCATIO N

R289 R292 R293 R440 R441 R442 R443 R444 R448 R449 R538 R539 R540 R541 R544 R545 R547 R548 R549

2Ν 1Ν 1Ν 7Η 7G 6G 6G 6G 5Η 5Η 5E 6C 5E 5E 5C 5C 4D 4D 4E

2E 2E 2E 6C 6C 6D 6D 6D 2D 2C 5Α 5Α 2Η 2Η 1J 1J 2J 2J 2J

RT236



2E

ΤΡ537

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1J

U 130 U 180 U 225 U 537A U537B U537C U537D U 540A U540B

1F 9F 7J 5D 4E 5D 5C 5E 5C

2C 20 1C 1J 1J 1J 1J 2Η 2Η

5G

2D

3L 3Μ 5D 5D 5E 4Κ 58 2D 3D 2L 7Β 8D 9D 6Β 2Α 3Α 2Α 3Α 8Α 9Α 8Α 9Α 5G 5G 5G 5G

4E 3E 7F 3Η 2J 5Α 5Α 4Α 4Α 4Α 5Α 5Α 5Α 5Α 3C 3C 3C 3C 3D 3D 3D 3D 6D 6D 6D 6D

VR 200

W 282 W 283 W 535 W 537 W 538 W 9001-10

W 9001-14 W 9001-2 W 9001-3 W 9001-4 W 9001-6 9001-7 W9001-8 W9001-9 W9103-1 W9103-2 W9103-3 W9103-4 9108-1 9108-2 9108-3 9108-4 9440-1 W9440-2 W9440-3 W9440-4

W

W W W W W

own on diagrams 3, 4, 5, 6, 7 and 8.

sh

TA BLE (CO Πt)

Ι

ς

VER TICAL PRE A MP & O UTPUT AMPLIFI ER

(cont)

ASSEMBLY Α3 CIRCUIT SCHEM NUMBER Ι LOCATION Ι L OCATION

CR 534 CR 537

4Α 48 68

2Β 2Β 2θ

R 111

2D 3D 9D

1Β 1Β 1C

CR538

R112 R161

Partial Α3 also s hown on

Ι

NUMBER Ι LOCATION Ι LOCATION R162 R280

9D 2L

1C 1C

S200 S226 S545 S550

6Α 3Κ 4Α 5Α

2Β 2C 2C 2Β

Ι

I LOCATON Ι LOCATION

NUMBER W534 W9000-10 W9000-14 W9000-2 W9000-3 W9000-4 W9000-6

58 4Κ 58 2D 3D 2L 78

Ι

NUMBER Ι LOCATION Ι LOCATION

W9000-7 W9000-8

3Β 4Β 48 4Α 4Α 4Α 4θ

W9000-9

SD 9D 68

48 48 4Β

diagrams 1, 3, 4, 5, 6, 7 and 8.

CHASSIS M OUNTED PARTS CIRCUIT SCHEM NU MBER Ι LOCATION Ι LOCATION C9272 C9273

SS 2S

~

Ι

C HASSIS

CHASSIS

NUMBER Ι LOCATION Ι LOCATION DL9210

Ι

R 9272

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Ι

NUMBER

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R 9273

Ι

W9272

1

2S

CHASSIS

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CHASSIS

Ι

NUMBER Ι LOCATION Ι LOCATION W9273

2S

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COMPO NEN T NUMBER EXAMPLE

U537

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~9272 3.3

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U225

4

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741C

Componeril Number

Α23

~φmmν Νυ mΝΙ -

R 1234

~=σhemατίσ ΓτπιΓ .-My Ο 5, Νυ mη~1 Nυmbcr ('Γϋ5¢ σ)

Ch-i, mπσπι¢σ -p-m5 ηασ -~τεπικν ΗπmΙνι pιetia-see eπσ σ f Replaceable L)eclnral Ρe ds List. HUM- ΑΝΟ LL77FR Α7 S~L LRΣS 70 OR FRΦΡ 07ΗΕβ ΟΙΑΟ RβΜS ΙΝΟΙCβΤΕ5 ΤΝΕ GSI~ ΕΟΟασ1ΝΑΤΕ8 ON ANOTHER ~KIVIATIC (FOR ΕΧΑΜΡ L Ε:7ΕΙ Α1 PARTIAL MAW

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(-) TO LOWER CRT V εRTiCAL DEFLECTSON

Ρ L ΑΤΕ Ρ9Ζ"ιζ 55

2235 Service

Η

4

4206-39

F igu r e 9-9. A3-Front Panel boar d.

Static Sensiti ve See

Devices

Maintenance Section

COMP ONENT NUMBER EXAMPLE Cοmραπeπ1 Nu m heε f-

I

R 23 Α2 R 1234

Assembly Number

~~Sc hematic Circuit Number

Sυbassembly number (ιΓ used)

'hmsis moueled co.po.euts have πα Assembly N um heι prelia-see ,πd αΙ R eplacea ble Εlect,ical P ads L ist.

A3-FRONT P A NEL B OAR D NUM B ER C376 C377 C379 C380 C987 CR534 CR537 CR538 CR 539 CR 646 CR988 CR989 05518 J 9200-1 J 9200-2 J θ250-1 J 9250-2 J 9250-3 J 9250-4 Ρθ 006-1 Ρ9006-2 R89 R92 R 111 R112 R 161 R162 R280 R377 R378 R379 R380 R438 R519 R520 R602

Ν U ΜΘΕ Ι 3 3 3 3 6 2 2 2 3 3 6 6 4 1 1 6 3 3 4 7 7 1 1 2 2 2 7 2 3 3 3 3 3 4 4 5

Ν UMB E:R R 726

R 982

R983 R985 R 986 R987 R 988 R 98θ R 990 δ 90 S200 5226 S380 S390 5392 S401 S401 5401 S460 S545 5550 5555 S602 S648 U 985 W89 W515 W534 W539 W630 W9520 W9521 W9900 W9000-10 W9000-11 W9000-12

R'

NU M B 6 7 7 6 6 6 6 6 6 1 2 2 3 7 3 4 4 4 3 2 2 3 5 5 6 8 4 2 3 3 4 4 6 2 3 8

NUMBER

NUMBER

W9000-13 Wθ 000-14 9000-15 9000-16 θ 000-17 W9000-18 W9000-19 9000-1 W9000-20 Wθ 000-21 W9000-22 9000-23 9000-74 9000-25 W9000-26 9000-27 W9000-28 9000-29 W9000-2 9000-30 9000-31 W9000-32 ω9000-33 W9000-34 9000-35 ω9000-36 W9000-37 W9000-38 W9000-39 W9000-3 W9000-4 W9000-5 W9000-6 W9000-7 W9000-8 W9000-9

5 2 5 5 4 3 3 7 3 6 3 3 4 4 5 5 5 4 2 4 3 3 3 3 3 3 3 3 3 2 2 8 2 2 2 2

W W W W W W W W W W W W

Α 14

F igure 9-10. Circuit view ο1 A3-Front Panel board .

5550 λ_ -{ί CR537 τ ,- CR538 , CR539 C11534

TR IGG ER I NG

ASS EMBLY Α 1 CIRCUIT

NUMBER

SCHEM Ι LΟ C ΑΤΟΝ Ι LOCATION

C312 C337 C363 C369 C381 C389 C390 C392 C397 C405 C408 C414 C415 C418 C419 C420 C421 C453 C459 C473 C479 C480 C553 C561 C565

2Η 5Η 1Μ 7F 5C 5D 4E 7D 6F 5Ρ 5Ρ 81 9-1 8Ε 7F 7-1 9Κ 7Μ 7Ν 4Ρ 6Μ 1Ρ 3Ρ 40 4F

4C 4D 4C 5C 8Α 8Α 8Α 7Α 4D 7C 7C 68 68 5C 5C 6Β 6Β 6C 6C 78 6C 7C 3E 3G 6E

CR 372 CR 381 CR 393 CR 399 CR 414 CR415 CR556

7G 5C

7F 7F 8J

91 2D

5C 8Α 6C 5C 68 68 4E

0302 0303 Q327 Q328 Q382A Q382B Q384 Q397 Q402 0403 0413 Q419 Q420 Q421 0422 0423 Q428 0429 0460 Q463

2G 3G 4G 5G 5D 5D 5E 6F 5Ν 5Ν 9-1 8F 7-1 9-1 7J 9Κ 8Κ 9Κ 4Κ 4L

3C 3C 3D 3D 8Α 8Α 8Α 5D 7C 7C 78 5C 6C 6C 6Β 68 6Β 68 6C 6C

R301 R302 R303 R304

2G 2G 3G 2G

3C 3C 3C 3C

P a rtial

Α 1 also

shown

Ι

NUMBER

R305 R306 R307 R309 R310 R311 R312 R314 R315 R317 R318 R319 R321 R322 R324 R326 R327 R328 R329 R330 R331 R332 R335 R336 R337 R339 R340 R342 R343 R344 R346 R347 R349 R350 R351 R352 R353 R356 R357 R358 R359 R360 R361 R363 R365 R366 R 367 R369 R372 R374 R381 R382 R384 R385 R386 R389 R390 R392 R393

Ι LOCATIO N Ι LOCATION Ι 3G 1G 3G 2G 2G 2G 2Η 3J 11 1F 1G 2Ν 3-1 3-1 3Η 5G 4G 5G 4G 5G 4G 5G 5Η 5Η 5Η 5-1 4-1 3F 3G 5J 6J 6-1 6Η 1Κ 3Κ 2Κ 2Κ 1L 312Κ 2L 3L 3Κ 1L 2Μ 3L 4Μ 7F 7G 7G 5C 5D 5D 5E 6D 6D 4D 7D 7E

3C 3C 3C 4C 4C 4C 4C 4C 3D 3C 3C 4C 4C 4C 4C 30 3D 3D 3D 3D 3D 3D 4D 4D 4D 4D 3D 3D 4D 4D 4D 4D 4D 5C 5C 5C 5C 5C 5C 5C 5C 5D 5C 5C 5C 5C 5C 5C 5C 5C 8Α 8Α ΒΑ 7Α 7Α 8Β 88 7Α 7θ

NUMBER

R395 R399 R402 R405 R407 R408 R411 R412 R413 R414 R415 R416 R417 R419 R420 R421 R422 R423 R424 R426 R427 R428 R429 R432 R433 R434 R435 R446 R452 R453 R455 R457 R458 R459 R460 R461 R462 R463 R464 R465 R469 R470 R471 R473 R474 R478 R 479 R483 R486 R487 R555 R556 R558 R560 R561 R562 R564 R565

Ι L OCATIO N Ι LOCATIO N Ι 6F 6E 5Ν 5Ρ 5Ρ 5Ν 8Η 9Η 9Η 8Η 9-1 8Η 9.1 8F 7G 9.1

SJ

9-1 7J 81 91 8Κ 9Κ 9Κ 9Κ 9Κ 9Κ 7Μ 8Κ 7L 8L 6Κ 7L 7Ν 4Κ 7Ρ 7Ρ 4L 5L 5Μ 5Μ 5L 5L 6Ρ 6Ν 5Ν 6Μ 6Μ 5S 6Ρ 1C 1D 2C 3C 4D 2E 4F 4F

5D 5C 7C 7C 7C 7Β 7Α 6Β 7Β 7Α 78 6Β 6Β 5C 6C 68 6Β 68 68 68 68 68 7Β 68 78 7Β 7Β 6C 6C 6C 6C 6C 6C 6C 7C 6C 6C 6C 7C 7C 7C 6C 7Β 7Β 7C 7C 7C 7C 7C 7C 58 3E 6Α 6Β 5Α 2Η 2Η 3Η

NUMBER

Ι LΟ CΑΤ ON Ι

LOCATION

ΤΡ397 ΤΡ460

6E 7-1

5D 6C

U 310 U 335 U 350A U 350B U 350C U 350D U 350 E U 426A U 426 B U 460A U 460 B U 460C U 460D U 460E U 460F U 480A U 480B U480C U480D U555A U555B U555C U555D U565B U565C U 565D

1G 4Η

4F

4C 4D 5C 5C 5C 5C 5C 68 68 6C 6C 6C 6C 6C 6C 7C 7C 7C 7C 4E 4E 4E 4E 2Η 2Η 2Η

1J 4-1 1Κ 3Κ 7G 8Ε 8Κ 9Κ 2D 2D 3D 4C 2C 8Ν 8Μ 8L 9L 6C 2C 2C 3C 7C 6C 7C 6C 4C

4D 3D 4D 4D 6C 5Α 6Α 6Α 4E 4E 4E 5Α 6Α 6Α 6Α 6Α 6Α 8Α 8Α 8Α 8Α ΒΑ 8Α 8Α 8Α 8Α

W310

W335 W350 W351 W410 W419 W428 W429 W555 W558 560 9001-11 9001-18 9001-19 9001-20 9001-22 W9001-23 9001-31 9001-32 9001-33 9001-34 9001-35 9001-36 9001-37 9001-38 9001-39

W W W W W W W W W W W W W W W

1

L



3L 3Κ 1Κ 8Κ 9Κ

7L 7L 7L 7Κ 7Κ 7Κ 6Ρ 5S

5L

5Μ 2D 1E 3E 3E

3F 2F

on diag rams 2, 4, 5, 6, 7 and 8.

TA BL E ( ΕΟΠ t)

Ι

T R IGG ER I NG

( εοητ )

ASS EMBL Y Α 3 CIRCUIT SCHEM NUMBER Ι L0CΑ7 ΟΝ Ι LOCATIO N

3F

C376 C377 C379 C380

5Β 58 6Β 5Β

3F 2F 3F

CR 539 CR 648

1θ 18

2Β 3D

J9250-2

28 3Β

3D 3E

J9250-3

Ι

NUMBER Ι LOCATIO N Ι LOCATIO N R 377 R 378 R379 R380 R438

5Β 6Β 68 58 8Μ

3F 2E 2E 4F 2F

S380 S392 S460 S555

48 6Β 8Ν 2Β

3F 3E 2E 3E

Ι

NUMBER W539 630 9000-11 W9000-18 W9000-19 9000-20 W9000-22 9000-23 9000-31 9000-32

W W W W W W

Ι LΟ CΑΤ ON Ι LOCATIO N 1Β 2Β 4C 2C 8Ν 8Μ 8Μ 9Μ 6C 2C

Ι NUMBE R

3Β 3Β 4Β 4C 4C 4C 4C 4C 4E 4E

W9000-33 9000-34 9000-35 9000-36 9000-37 9000-38 9000-39

W W W W W W

BOARD Ι L0CΑ7 ON Ι LOCATION 2C 3C 7C 6C 7C 6C 4C

4E 4E 4E 4E 4E 4E 4F

P artial Α 3 also shown on diagrams 1, 2 4, 5, 6, 7 and 8.

ASS EMBL Y Α4 CIRCUIT SCHEM NUMBER Ι L Ο CΑΤΟΝ Ι LOCATIO N Ρ9250-2



Ι

2E

NUMBER Ι LOCATION Ι L OCATIO N Ρ 9250-3



Ι

NUMBER Ι LOCATIO N Ι LOCATION

Ι

NUMB E R

BOARD Ι LOCATIO N Ι LOCATION

Ι

NUMBER Ι LOCATIO N Ι LOCATION

Ι

NUMBER

Ι LΟ C ΑΤ ON Ι LOCATIO N

2E

Partial Α 4 also shown on diagrams 4, 5 and 6.

CH ASSIS M O UN T E D PA R TS CIRCUIT SCHEM NUMBER Ι LOCATIO N Ι LOCATIO N

Ι

NUMBER Ι LOCATION Ι LOCATIO N

J 9376

Ι

R 9376

Ι



Ι C HASSIS

Ι



Ι

C HASSIS

c k 2 cαοιπ C R 539

CR539

ΗΑ Lτ FR0Μ g~-Ι

CR 5ι Ο9Ρ CR551 7 2C Ο5.ίνg

Ι I+8.6Vp

ω539

_ _ [ρ3ιο 2ε

5555

-33Ι Ι -33 CH2T

"SSG 5.1 Κ

U 5ηο 5.6 ~Κ 6F ©

c561 V

εΚΤ



1 C361

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4 ΙΖΚ

+ Β.ΑVΑ R390 Ιοα ο

6

Ι6.θ

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Q382~ C3 α9 .Ο1μ F~ 0

5392 ρςοURCε +8 .6V,, ΙΝτ -_

Η



LINE -_ -1 ε

ι ο

` 5

31 Ι 1 31 -- ι-~~ _jΒΙ

-36

Υ Ds - C ΙλΙ

_37 ΙΙ -37

_

ιΝ 7

Ua 6όD

R565 3ΟΟ

C565 97 Ο

R328 Β

22 Ο j

FROM Q153 sc

4.7 Ι

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R336

Ι" 27 Κ

R 332 47

α s3ο ι.Sκ

C

L

R399 Ιοο

R3g5 910

-9'δναι

CR 399 . ..

+Β.6 γ(

R369 750

TI

CR3g3

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- 13 -8 .6VD1

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~

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R 329 ω R335 Ι.5κ Ι .27Κ

- 8.6V ο 1

ΤΡ397

αθο9

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g331 α7

Q328

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Lima ΤιτSGGεR FROM R997 ρ~α

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CH ι SELE CT ED TO \Ν 9900- ιτ 2F ρ

Q327

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R327 22 0

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INPUT

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PARτ 1AL ΜΑίΝ ΒοΑρυ

Static Sensitive Device$ 5Μ Μαίπtαηαη ce Sκtion

NUMBER E X A1λ PL L

Component

Numb er

μ Α R 1234 23 Ι [::I-" -1k ~1 ~Ι~ενεΓ Num Π er Sυbassembf Num6er Num bei (ifusedJ πχυπ 1e d σσmρσπ ¢πϋ h ανe π t, Α-emh1y Νσ n ι b ~, Ch., .~-see en d σΙ Aeplacea h le E lectrical P arts [ist.

pgμEL SOAR P

NQMEχ pL λχσ ιεττεα λτ :1QΝλ L LINES 70 σα εασ Q στχε R οιλσχλπι~ ιΝειελ7ε s 7 ιε QRID COORDINhTES ΟΝ λΝσ7Η4Α 5~ ΗΕΝλ7Ι~ IFOp εΥλααΡιε~ σε7

ρ

Q 423 [921 ο ιΑ,F {--ε

-8 .6 VA _θ.b VA

-8.6νΑ

Q429

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Α3

©

COMPONENT

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ι-

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R-187 Α70

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sυθ sτιτΑτ e

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220 Κ

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+θ.

α 4ss~

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U926A 1438

4 -5 .2νρ I

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R°4

h

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R483

R9~5 43 Ο 24 ΟΚ, ~ κ915 Auemnty 1958 ¢ ΡΑυτ L7 AT R IGG E R Σ ω 4411 7_y _ οτ 1αοαιυι _23 -23 R 417 091 ς 1} + Ν~Ε:Μ 97 χ y 3 .3f~F1` AUTO LEY£ L CCW _

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R47 ,1 4.3K

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F igure

©Static Sensitive Devices See Maintenance Section

CO MP ONENT NUMBER EXA MPLE Co mponent Α23

m Asτ em biy Number

0

α β to β Ζ

2

Number

R 1234

subasτembly Number (! used]

5~ chem αδc Cσ¢ υ"

Nυmber

Chαsss mσυπ[edcomponents have πσ Assem bly Number p re fix-see en d σΣ Replacea ble Electrical P arts List,

9-11 . A41-Timing boar d.

A4-TIMING CI R CU IT NUMBER

SCHEM NUMBER

C701 C701 C701 C701 C702 C703 C705 C706 C707 C708 C710 C712 C713 C714 C715 C720 C724 C728 C749 C750 C751 C752 C755 C R 732 CR 742 Ρ 9250-1 Ρ 9250-2 Ρ 9250-3 Ρ 9250-4 Ρ 9700-10 Ρ 9700-1 Ρ 9700-2 Ρ 9700-3 Ρ 9700-4

4 4 5 5 4 4 4 4 6 4 5 5 5 5 4 4 6 6 6 6 6 6 6 6 6 6 3 3 4 4 6 6 5 4

Ρ9700-7 Ρ9700-8 Ρ9700-9 Ρ9705-1 Ρ9705-2 Ρ9705-3 Ρ 9705-4 Ρ 9705-5 Ρ 9705-6 Ρ 9705-7 Ρ 9705-8 0701 Q704 Q704 Q706 0709 0710 0710 Q712 0732 0737 Q742 R701 R702 R703 R705 R707 R709 R710 R711 R713 R715 R716 R717

Ρ 9700-6

4

R719

Ρ9700-5

4

CI R C U IT NUMBER

R718

BOA R D

SC HEM NUMBER 4 5 5 6 6 6 6 6 6 6 6 4 4 4 4 5 5 5 5 6 6 6 4 4 4 4 4 5 5 5 5 4 4 4

4

4

CI R CU IT NUMBER R721 R722 R724 R727 R728 R730 R731 R732 R733 R737 R738 R740 R741 R742 R743 R745 R746 R748 R749 R750 R751 R752 R753 R754 R755 S701 S701 S701 S721 U715 U750 U760 VR720 VR749 W709

SC HEM NUMBER 4 4 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 4 4 5 6 4 6 6 4 6

5

2235 CON T R OL DC V o l tages

Α I N T ENSITY HOR I ZO N TA L MODE Α S E C/O I V Α T R IGG ER Mode

S E TT I NGS

M i d range

λ 0 .1 ms Ρ - Ρ AUTO

Wave f o r π s VER T I CA L MODE CH Ι V OL TS/OI V CH Ι AC-C N D -OC HORIZONTAL M OD E Α T R IGGER LEVE L Α T R I GGER M o d e Α SOURCE ΑδΒ ΙΝΤ

CH I V DC Α M i dr a nge Ρ - Ρ A U TO ΙΝΤ CH 1

CH 1

1- k Hz sine wave, 4V Ρ- Ρ

AC

1

I NPU T SIG N AL

+4 .4 V +3 .4 V

7

Η

Λ GATE

L H

.5V HI ΙΝΤΕΝ +3 +2 .6V L O ΙΝΤΕΝ

L

3 .5 V

HOL OOFF TIMING

+I .9V +Θ.9Υ Η L

ΦΦ

SET C H 1

f END OF

AC-GΝ0-DC ΤΟ GΝD

Η L

A U TO TIME-OUT

42 θ6-97

Α SWEEP G ENER ATO R & L OGIC

Ο

ASS EMBLY Α 1 CIRCUIT SCHEM BOARD NUMBER Ι LOCATIO N Ι LOCATION C501 C502 C503 C504 C505 C506 C517 C518 C519 C520 C525 C527 C531

9Ε 9Ρ 9Ρ 5F 6E 9Μ 7D 6D 6E 6D 8Κ 8Μ 9Ν

8C 7C 6D 6D 6D 7D 6D 6D 6E 6E 6E 7E BID

CR 503 CR508 CR509 C R514 C R518

7E BID

7E

6D 7Β BB 7D 6D

0509

9F



9F

7J

Ι

CIRCUIT SCHEM BOARD NUMBER Ι LOCATIO N Ι LOCATION Q511 Q525 0576 0578

7Κ 7E 6Κ 7L

7D 6D 7D 7D

R 501 R 502 R 503 R 504 R 505 R 507 R 509 R 510 R 511 R 512 R 513 R 514 R 516 R 517 R 518 R 523

9E 8Ε 9E 5F 5E 9F 9F 91 8J 7-1 7-1 7Κ 8J 8Η 6G 7D

7C 7C 8C 6D 6D 8Β 8C 8Β 7D 7D 7D 7D BID

Ι

BID

7D 6E

CIRCUIT SCHEM NUMBER Ι LOCATION Ι LOCATION Ρ 524 "525 R 526 R 527 R 528 8568 R 569 R 571 R 572 R 573 R 574 R 576 R 577 R 578 R 580

8D 8Κ 7F 7Μ 7BIDF

ΤΡ504

7E

7E

U502 U 504A U504B

BE 6F 7D

8C 6D 6D

8D 8G 7G 8Η 7G 7Κ 7L 7L 7L

Ι

6E 6E 7E 7E BID 7D 7C 7D 7D BID 7D 7D 7D 7D 6D

NUMBER

BOARD LOCATIO N LOCATIO N

U 506A U 506B U 532A U 532 B U 532C U 532D

6Η 7Η 8Η 7F 7G 8F

7D 70 7D 7D 7D 7D

W582 W9001-17 W9001-24 W9001-25 W9001-29 W9001-30 W9700-10 W9700-4 W9700-5 W9700-6 W9700-7

7L 9Β 8Β 5Β 9Κ 98 7Μ 5Ο 5D 5D 8Μ

7D 6Α 6Α 7Α 7Α 7Α 7E 7E 7E 7E 7E

Partial Α 1 also shown on diagrams 2, 3, 5, 6, 7 and 8. ASS EMBLY Α 3 CIRCUIT OSCHEM BOARD NUMBER Ι L CATIO N Ι LOCATIO N

Ι

SCHEM ARD NUMBER Ι LOCATIO N I LOCOATIO N

DS518

9L

2E

R 520



2E

J9250-4



3E

R 519



3E

S401A S4018 S401 C

5Α 8Α 9Α

2E 2E 2E

Ι

CIRCUIT SCHEM NUMBER Ι LOCATION Ι LOCATION W515 W9520 W9521 W9000-17 9000-24

W

9Α 4Β 38 9Β 8Β

Ι

F 3E 3E 4C 4C

NUMBER W9000-25 9000-29 9000-30

1

W W

( LOCATIO N LOCATIO N 5Β 9Κ 9Β

4D 4D 4D

Partial Α 3 also shown on diagrams 1, ζ 3 5 6, 7 and 8. ASS EMBLY Α 4 CIRCUIT OSCHEM NUMBER Ι L CATIO N Ι LOCATIO N C701A C701 Β C702 C703 C705 C706 C708 C715 C720

1Μ 1Μ 2Ν 2Ν 2Ρ 3Ρ 2Ρ 3D 3F

2C 2C 2E 2E 2E 1D 1E 3θ 4Α

Ρ9250-4

48

2E

Ι

OSCHEM NUMBER Ι L CATIO N Ι LOCATIO N Ρ9700-10 Ρ 9700-4 Ρ 9700-5 Ρ 9700-6 Ρ9700-7

7Ν 4D 4D 4D 8Ν

1D 1D 1D 1D 1D

0701 Q704A Q704B 0706

2Ν 2Ρ 3Ρ 2Ρ

1E 2E 2E 1D

Ι

CIRCUIT SCHEM NUMBER Ι LOCATIO N Ι LOCATION R701 R702 R703 R705 R707 R715 R716 R717 R718 R 719 R721

1F 1G 1Μ 2Ρ 1Ρ 3E 3D 2E 2E 3F 2F

Ι

2D 2E 2E 1E 1C 4Β 4C 4Β 48 4Α 3Α

NUMB Ο

LOCATIO N Ι LOCATIO N

R 722

2F



S701A S701 B

11 1D

3D 3D

U 715

2E



VR720

2F



Partial Α 4 also shown on diagrams 3, 5 and 8.

C H ASSIS M O UNTE D P ARTS CIRCUIT OSCHEM NUMBER Ι L CATIO N Ι LOCATIO N R9521

Ι



Ι C H ASSIS

Ι

NUMBER Ι L OCATIO N Ι LOCATIO N

Ι

NUMBER Ι LOCATIO N Ι LOCATION

Ι

NUMBER

LOCATIO N Ι LOCATIO N

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NUMERAL AM LEΠSR AT SIG- UNES To OR FROM OTHER DIAGRAMS ΙΙΦΙ C ΑΤΕ S THE bσο CΟωισιΝΑΤεR ON ANOTHER SCHEMM 9FOR ΕΠλΜΡLΕ- ΛΕ )

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Waveforms

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COMP ON ENT NUMBER EXAMPLE Co mponent

Number

Α23 ~R 1, 234, Assembly Number

~S chematlε

Subassembly Nnmδer ρ7 nsed)

Circυ~ Number

Chassis mounted components have no Assembly N um ber prefix-see end of Rep laceable FJectrιcαl Parts List .

A5-ALTERNATE S WEEP BOAR D

A5-ALTERNATE SWEEP B OAR D CIRCUIT NUMBER

SCHEM Ι NUMB ER Ι

C610 C624 C627 C643 C655 C659 C665 C671 C672 C690

NUMBER

5

R623

5 5

R624 R625

5 5

R626 R627

5 5

R629 R630

5 5 5

R631 R632 R633

C693 C694 C R680

5 5

CR816

5 5

R642 R643

5 5

R644 R651

5 5

C R685 C R817

Q619 Q620

0630 Q631 Q637 Q643 0680 0685 R604 R605 R606 R609 R610 R611 R614 R616 R617 R619 R620 R621

5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5

SCHEM Ι NUMBER Ι

5

W677 W678 W682 W690 W695 W696 W698 W9401-10 W9401-11 W9401-12 W9401-13 W9401-14 W9401-15 W9401-16 W9401-17 W9401-18 W9401-19 W9401-1 9401-20 9401-21 9401-22 9401-23 9401-24 9401-25 9401-26 9401-27 9401-2 9401-3 9401-4 9401-5 9401-6 9401-7 9401-8 W9401-9

5 5 5

U605 U605 U605 U625 U625

5 5 5 5 5

5 5 5 5

U625

5 5

U625 U655 U 660 U 660 U 660 U 660 U 660 U 660

5 5 5 5 5 5 5 5

5 5 5 5 5 5 5 5

U 665 U 665 U 665 U 665 U 670 U 670 U 680 U 680 U 680 U 680

5

R652 R653 R657 R660 R662 R663 R664 R665 R666 R670 R671 R672 R674 R677 R690 R693 R816 R817

NUMBER

U605 U605

5 5

R638 R640

Ι NUMBER Ι

U605

5 5

R634 R637

NUMBER

5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5

5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5

VR 624 V R660 637 638 643 655 662 668 670

W W W W W W W

Β TI MI N G & ALTERN AT E Β

SCHEM Ι NUMBER 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5

W W W W W W W W W W W W W W W

5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5

S WEEP

ASS EMBLY Α 1

NUMBER C603 C635 C646

C647 C648 C649 C673

LOCATIO N 9F 2F 5F 3E

1F 3F 7F

C R 712

6F

Ρ9644-1 Ρ 9644-2 Ρ 9644-3

4E 5E 5E

L OCATIO N 5E 7F 7E 6E 6E 6E 7E 7E

8Ε 8Ε 8Ε

Ι

NUMBER R645 R646

R647

R648 R649 R673

VR645 VR712

W602 W603 W635 W649

LOCATIO N

LOCATION

4E



5E 5F

SD 8Ε

1F

2E

6F

5E

6F

SD 8D 7E

SD 7E

9F 9F

6E

2F



2E

6E

7F

Ι

NUMBER

W 9001-13 W 9001-15 W 9001-16 W9001-26 W9001-27 W9001-28 W9400-10 W9400-11 9400-12 9400-13 9400-14 9400-17 W9400-19 9400-1

W W W W W

LOCATIO N

LOCATIO N

2E 1E 9F

5Α 6Α 6Α

2E 2E

9F 2F 2S 2F 1F 5F 6F 2F 9F

7Α 7Α 7Α 6E 6E 6E 6E 7E 7E

Ι

NUMBER

LOCATIO N

W9400-20 W9400-21 W9400-22 9400-2 9400-4 9400-5 9400-6 9400-7 9700-3 9700-9

W W W W W W W

LOCATIO N

5F 1F

7E 7E 7E

6F

9F 9F 1S 2F 2S 6F 6F

5E 6E 6E

6Ε 6E 7E 7E

7E 5E

Partial Α 1 also shown on diagrams 2, 3, 4, 6, 7 an d 8.

TA BLE ( εοηt)

Ι

..

Β TIM I N G & ALTERNATE Β

S WEEP

(con t)

ASS EMBLY Α 3 CI R CU IT Ι SCHEM Ι BOAR D NUMBE R LOCATIO N L OCATION

Ι

CI R C U IT NUMBER

Ι SCHEM Ι BOAR D Ι LOCATIO N Ι LOCATIO N

R602

Ι

9E

1F

S648



2D

S602

Ι

SD

1E

W 9000-13 ~



48

Ι

CIRCUIT NUMBER

SCHEMCIRCUITSCHEM BOARD Ι LOCATION Ι L OCATIO N Ι NUMBER O CATION Ι L OCATION

L

W9000-15 ~ W9000-16 W9000-26

1E 9E 2E

4C 4C 4D

W9000-27 ~ Ι W9000-28

2E 9E

4D 4D

Partial Α3 also shown on diagrams 1, 2 3 4, 6, 7 and 8. ASS EMBLY Α 4 CIRCUIT SCHEM NUMBER Ι LOCATIO N Ι LOCATION C701C C701D C710 C712 C713 C714

6C 6D 7D 7D 7D 7D

Ι

2C 2C 2D 2C 2C 1C

NUMBER

Ι L OCATIO N Ι LOCATIO N

Ρ9700-3 Ρ9700-8 Ρ9700-9

6E 7E 6Ε

1D 1D 1D

Q709 Q71 OA

6D 7D

1D 1D

Ι

NUMBER

Ι LΟ CΑΤ ON Ι L OCATIO N

Q7108 Q712

7D 7E

1D 1C

R 709 R 710 R 711

6C 7D 6Α

2C 1C 2C

Ι NUMBER R713

Ι LΟ CΑΤ ON Ι LOCATIO N 6D

2C

S701C

38

3D

W709



1D

P artial Α 4 also s how n on diagrams 3 4 and 6. ASS EMBLY Α 5 NUMBER Ι LOCATIO N

I LOCOATIO N

C610 C624 C627 C643 C655 C659 C665 C671 C672 C690 C693 C694

91 3Η 7J 6Κ 6J 4Κ 5J 2Μ 7Μ 4Η 4G 4Η

3Α 2Α 1Α 3E 3C 3D 3C 28 3C 3Β 1E 18

C R 680 C R 685 C R 816 C R 817

5Ρ 4Ρ 4Ρ 5Ρ

2C 2C 2C 3C

0619 0620 Q630 Q631 Q637 0643 0680 Q685

7Η 7J 7L 7L 9L 6L 5Ρ 3Ρ

2Α 2Α 28 1Β 2D 3D 2C 2C

R 604 R 605 R 606 R 609 R 610 R 611 R 614 R 616 R 617 R 619

9G BG 9G 91 91 9-1 9Η SG SG 7Η

3Α 3Α 3Α 3Α 3Α 3Α 3θ 28 3Β 2θ

C H ASSIS MOUN T ED CIRCUIT NU MBER R9644

NUMBER R620 R 621 R623 R 624 R625 R 626 R 627 R 629 R 630 R 631 R 632 R 633 R 634 R 637 R 638 R 640 R 642 R 643 R 644 R 651 R 652 R 653 R 657 R 660 R 662 R 663 R 664 R 665 R 666 R 670 R 671 R 672 R 674 R 677 R 690 R 693 R 816

I L OCATIO N I L OCATIO N 7J 7J 81 3G 81 7Κ 81 8Κ 7L 8L 5Μ 7Μ 7L 9Κ 9L 9L 6Κ 6Κ 6L 5Η 5Η 6Η 4-1 3-1 4Κ 4J 5Κ 5J 2Ρ 2Κ 1Μ 6Μ 2Ν 1Ρ 4G 3G 4Ρ

28 2Α 2Α 1Α 2Α 1Α 1Α 2Α 1Α 18 28 3Β 1Β 3Β 2D 2D 3D 3E 3E 3D 3D 3D 3D 38 3D 3D 3E 3C 3C 1D 1C 2C 1θ 1Β 3Θ 3E 2C

I LOCATO N

Ι LOCATION

Ι

NUMBER

I LOCATO N I LOCCA710N

R 817



3C

U605A U 605B U 605C U605D U 605E U 605F U 625A U625B U625C U625D U655 U660A U 660B U660C U660D U 660E U660F U665A U6658 U665C U665D U 670A U670B U680A U680B U680C U680D

81 91 8G 8Η 9Η 8Η 8Κ 7Κ 8J 8Κ 5J 9Μ 5Μ 4Ν 9L 2L 5L 5L 3Ρ 2Ρ 5Ν 4Μ 1Ν 1Μ 2L 5Κ 5Κ

3Α 3Α 3Α 3Α 3Α 3Α 2Α 2Α 2Α 2Α 3C 2D 2D 2D 2D 2D 2D 2C 2C 2C 2C 2Β 2Β 2E 2E 2E 2E

VR 624 VR 660

3G 4J

2Α 3C

2J 4Η 6L 3Η

3C 2E 2D 3E

W637 W638 W643 W655

Ι NUMB E R

W662 W668 W670 W677 W678 W682 W690 W695 W696 W698 W9401-10 W9401-11 W9401-12 W9401-13 W9401-14 W9401-15 W9401-16 W9401-17 W9401-18 W9401-19 W9401-1 W9401-20 W9401-21 W9401-22 W9401-23 W9401-24 W9401-25

W940 1-26 W9401-27 W9401-2 9401-3 9401-4 9401-5 W9401-6 9401-7 9401-8 W9401-9

W W W W W

BOARD LOCATIO N Ι LOCATIO N 1Κ 5L 7J 2Ρ 2J 4Ν 4G 7Ρ 7Ν 7Ν 2G 2S 2G 1G 5G 4G 4G 6G 4G 2G 9G 5G 1G 6G 4G 4G 4G 3G 3G 9G 4G 9G 1S 2G 2S 4Ρ 5S

1E 1C 3C 3Β 2E 2D 3D 1C 1D 1θ 4Β 48 4C 4C 4C 4C 4C 4C 4C 4D 4Α 4D 4D 4D 4D 4D 4D 4E 4E 4Α 4Α 4Α 4Α 4Β 4Β 48 48

PA R TS

SCHEM LOCATION L OCATION 5D

Ι

C H ASSIS

Ι

NUMBER

Ι

NUMBER

(L OCATIO N Ι LOCCATIO N

Ι NUMBER

L ΟΟ CΑΤΟΝ LOCATIO N

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PR O BE AD JU ST & ΧΥ A MPL I F I ER / HO R IZO N TA L O U T PU T

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ASS EMBLY Α 1 CIRCUIT NUMBER

SCHEM Ι LOCATIO N Ι LOCA ΙΟΝ

C762 C764 C770 C775 C777 C779 C780 C782 C785 C787 C789

4D 6Μ 7Μ 8Ν 7S 7Ρ 5Ν 5Ν 4Ν 4Ρ 3Ρ

5E 3G 3F 3F 3E 3F 3F 2F 2F 2F 2F

CR 764 C R 765 CR 768 CR 770 CR 780

616Μ 6Μ 6Μ 5L

2G 3F 3F 3G 3G

0756

4C

5D

Ι NUMBER Ι LOCATIO N Ι LOCATIO N Q770 Q775 Q779 0780 Q785 Q789

7Μ 8Ρ 7Ρ 5Ν 5Ρ 4Ρ

3F 3E 3E 2F 2F 2F

R566 R676 R756 R757 R 758 R759 R760 R761 R 762 R 764 R 766 R 768

5D 5C 4C 3C 4C 4C 4D 4C 4C 6L 6Μ 6Ν

6E 6D 5D 5C 5D 5D 5E 5D 5D 3G 3F 2F

NUMBER Ι L Ο CΑΤ ON Ι LOCATIO N

Ι

R 770 R773 R775 R776 R777 R778 R779 R 780 R 782 R 783 R 785 R 786 R 787 R 788 R 789 R 792 R 793

7Μ 8Ρ 8Ν 7Ρ 6Ρ 8S 7Ρ 5Μ 5Ν 5Ρ 4Ν 3Ρ 5Ρ 4S 4Ρ 5Ρ 6Ρ

3F 3F 3F 3E 3F 3E 3E 3F 2F 2F 2F 2E 2F 2E 2E 3E 3F

U 758

4C

5D

Ι NUMBE R VR764 VR 782

W 570 W 732 W 770 W 780

W9778 W9788 W9001-21 W9700-1 9700-2 W9705-2 9705-3 9705-5

W W W

Ι LOCATIO N Ι LOCATION

6L



2G 2F

5D 5C 7L 5L SS 4S 38 5E 5E 5L 7L 4D

7E 6E 4E 4E 3E 2E 6Α 7E 7E 5E 5E 5E

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Ι

LOSCHEM CATIO N Ι LOCATION

Ι

CIRCUIT SCHEM NUMBER Ι LOCATION Ι LOCATIO N

C987



1D

1

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C R988

2C 2D

1D 1D

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1D 1D 1D

C R989

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Ι

SCHEM NUMB E R Ι LOCATION Ι L OCATIO N R 987 R988 R 989 R 990

2C 2C 2D 2D

1D 1D 2D 1Β

CIR SCHEM Ι NUMBER Ι LOCATIO N Ι LOCATION Ι

U985

2C

1D

W9900 W9000-21

2D 38

1Α 4C

on diag rams 1, 2, 3 4, 5, 7 a nd 8.

ASS EMBLY Α4 CI R CUIT NUMBER

BOA R D LOCATION

Ι

CI R C U IT SCHEM NUMBER Ι LOCATIO N

B OAR D LOCATIO N

C707 C724 C728 C749 C750 C751 C752 C755

8Ε 8Ε 3F 2J 8J 3J 6Κ 4J

18 18 3Β 28 3Α 36 1Β 3Α

Ρ9705-1 Ρ 9705-2 Ρ9705-3 Ρ 9705-4 Ρ 9705-5 Ρ 9705-6 Ρ9705-7 Ρ 9705-8

9E 5Κ 7Κ 9E 4E 9E 8Ε 8Ε

2Α 2Α 2Α 2Α 2Α 2Α 2Α 2Α

CR 732 C R 742

5F 5F

1C 1C

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3E 5E 5E

2E 1C 1D

0732 Q737 Q742

6G 7G 5G

28 3Β 2Β

R724 R 727

8F 3F

1Β 4D

P artial

Α 4 also s hown on diagrams 3, 4 and 5.

CH ASSIS M O UN TE D P A R TS

NUMBER Ι LOCATIO N I LOCATIO N R 728 R 730 R 731 R 732 R733 R737 R738 R740 R741 R742 R743 R745 R746 R748 R749

3F

6F 6F 6G 7G 7G 7G 4F 4F 4G 5G 6G 5G 6J 6J

4D 18 1C 1Β 2Β 4C 38 18 1C 1Β 2Β 2Β 18 2Α 1Α

Ι

NUMBER Ι L OCATIO N Ι LOCATIO N R 750 R 751 R752 R753 R 754 R 755

6J 3J 8F 4J 4Κ 4Κ

2Α 2Α 1Α 2Α 2Α 3Α

S721

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U 750 U 760

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Ch .--mσεnt¢d ω.φnertϋ h avenαΑssem h ly N um W Vells-see ¢πd π1 Replaιeahle E le ε lr ι cal Ραι k ist. L

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W9041

W 91-91

λ':'4C?91

W901

R T901

3

4206-43

F ig ure 9-13. A6 - F ilte r boa rd .

A6-FILTER

CIRCUIT NU MBER

C900 C902 C903 R900 R901 R903 RT901

©Static Sensiti ve Devices See Maintenance Section

COMP ONENT NUMBER EXAMPLE

Cοm Ασπ eπΓ Nu mber Α23 Α2

R 1234

Ι Ι Scbemaλί c Asτ em 10y ~r 11 Ι ~~ Circuit ~ Number Subassembly Number Number (ίλ used) Chassιs-mounted components have no Assembly N umber prefix see en d of R eplacea ble Electrical P aris L ist.

SCHFM Ι NUMBER Ι

7 7 7 7 7 7 7

B OA R D circl

SCHFM

N UM BER Ι NUMBER Τ 901 Τ903 υR901 W9011 W9041 W9091 W9191

7 7 7 7 7 7 7

P OWER SUPPLY, Ζ AXIS & C RT

ASS EMBL Y Α 1

NUMBER

L OCATIO N

LOCATIO N

C396 C824 C825 C828 C832 C835 C845 C847 C849 C851 C853 C854 C855 C871 C873 C875 C877 C879 C893 C904 C906 C907 C908 C917 C919 C922 C925 C940 C941 C942 C943 C944 C945 C954 C956 C960 C961 C962 C963 C968 C970 C975 C976 C979

6D 3E 3F 4F 2G 4Η 3Η 3-1 3-1 7Μ 7Μ 6Μ 3Μ 4S 5S 6S 7S 8Ν 7Ν 5D 5F 7-1 6Η SD 8F 7F 6E 9G 9G 9D 9C 9F 9F 6Κ 7Κ 9L 9L 9L 9L 9L 9L 5L 5L 5Μ

4Η 6E 3Η 3Η 3Η 3-1 3-1 33-1 6Η 6G 5G 5G 1Η 1Η 1Η 1Η 5Η 4G 4-1 5Η 6-1 5J 7Η 8-1 7-1 8J 6Η 6Η 8Η 8Η 7Η BJ 6F 6F 6F 8F 7F SF BG 8G 5G 5G 5G

C R551

2C 1C 2C 1D 2D 3E 2F 3G 3F 4Ν 3Η 7Μ 6Μ 5Μ 5Μ 8Μ

6D 6D 5Β 6E 6E 2Η 2J 3J 3-1 3J 3J 6G 5G 5G 5G 6G

CR 583 C R 805 CR818 CR 820 CR 823 C R 824 CR 825 CR 829 CR 840 CR 845 CR 851 C R 853 C R 854 CR 855 C R 879 Partial

Ι

NUMBER

LOCATIO N

L OCATIO N

CR 901 CR 902

CR 903 CR 904 CR 907 C R 908 C R 920 CR 945 C R 946 C R 947 C R 954 C R 955 C R 956 C R 957 C R 960 C R 961 CR 962 C R 963 CR967 CR970

5E 5E 5E 5E 7J 8Η 6-1 9F 9-1 9-1 6Κ 7Κ 7Κ 7Κ 8Κ 9Κ 9Κ . 9Κ 9Κ 9Κ

5-1 5-1 5-1 5-1 6Η 7Η 7-1 8Η 8Η 8Η 6F 6F 6F 6F 7F 8F 7F 8F SG 8G

DS856 DS858 DS870

5Μ 5Μ 8L

5G 5G 5G

E907





L960 L961

8191-

7F 8F

Ρ 9802-1 Ρ 9802-2 Ρ 9802-3 Ρ 9802-4 Ρ9802-5

3Β 3Β 2Β 3θ 28

4θ 4θ 48 48 48

Q586 Q804 Q814 0825 Q829 Q835 Ο840 Q845 Q885 0908 0928 Q930 Q935 0938 Q939 Q944 Q946 Q947

1D 28 3C 3F 3G 4Η 4-1 3-1 1L 8Η 6F 6G 98 9D 9E 9F 9Η 9Η

6D 58 5Β 3J 3 .1 3J 3-1 3-1 4G 7Η 7-1 7-1 8-1 81 8-1 8J 8Η 7Η

R397 R398 R586 R800 R804 R805

6D 6D 1C 2Β 28 28

5E 5E 6E 48 48 5Β

Ι

NUMBER R810 R814 R818 R820 R822 R823 R825 R826 R828 R830 R 832 R 834 R 835 R 836 R 840 R 841 R 842 R 844 R845 R849 R851 R852 R853 R854 R858 R860 R 870 R 871 R 872 R873 R874 R875 R877 R879 R885 R 886 R888 R889 R890 R 891 R892 R 893 R894 R905 R906 R907 R908 R910 R912 R913 R914 R915 R916 R917 R919 R921 R922 R925 R926 R927 R928

LOCATIO N 38 3Β 1D 2D 4E 3E 3E 3E 4F 3G 3G 4Ν 4G 4G 4Η 3G 3J 3Η 3Η 3-1 7Μ 7Μ 7Μ 6Μ 6Μ 4Μ 4S 4S 5S 4S 6S 6S 7S ΒΝ 1Κ 2L 1L 1Μ 1Μ 1Μ 6Ν 6Ν 6Μ 6D 6D 9-1 8Η 78 9C 8C BD 8D 8F SD 8F 8Ε 8F 6F 5E 7F 6F

L OCATIO N 48 4Β 6E 6E 2J 2.1 3J 2-1 2G 2-1 3-1 3J 3J 3J 3-1 3-1 3-1 3J 3J 3-1 3-1 3J 6G 5G 5G 5G 1Η 1Η 1Η 1G 1G 1G 1Η 6F 4Η 4G 4G 4G 4G 4G 4F 4F 5F 4J 5-1 6Η 7-1 5Α 7-1 7J 7Η 7-1 7-1 7Η 8-1 7J 7.1 7-1 7-1 7-1 7-1

Ι

NUMBER

L OCATIO N

L OCATIO N

7J

R929 R930 R934 R935 R 937 R938 R 939 R940 R941 R942 R943 R 944 R945 R946 R947 R949 R971 R976 R978

6F 6F 9C 9C 9C 9C 9C 9C 9E 9D 9Ε 9F 9F 9Η 9Η 9Η 9L 4L 4L

S901

5D

4-1

Τ390 Τ906 Τ944 Τ948

6D 6J 9Η 4-1

4Η 6.1 7Η 6G

ΤΡ8 42 ΤΡ900 ΤΡ940 ΤΡ950

3J 9D 9C

3-1 BE 8-1 7Η

U 930

9G 4Κ

7-1 5F

VR 828 VR 925 VR 935 VR 943

4F 7F 9C 9E

3Η 7-1 8-1 8J

W 9040 W 9190 W 9800 W 9001-1 9070-1 9070-2 9070-3 9150-1 9150-2 W9400-8 9400-9 9870-1 9870-1 9870-1 9870-1 W9870-2 9870-3 9870-4 9870-5 9870-7 9870-8

5D 5D 4θ 4F 8Η 7Η 8Η 7Β 8Β 3C 3E 4S 3Ν 8Ν 8Ν 8Ν 7Ν 7Ν 6S 5S 7S

5J 5Η 3-1 4Α 6Η 6Η 7Η 5Α 5Α 6E 6E 1Η 4G 4G 4G 4G 4G 4G 1Η 1Η 1Η

U 975

W W W W W W W W W W W W W W W

7J 8J 8J 8Η 8-1 8Η 8Η 8 .1 8-1 8-1 8-1 8Η 8Η 7Η 8Η 8G 5G 5G

9L

Α 1 also sh own on diagrams 2, 3, 4, 5, 6 and 8.

TABLE (c οηΥ )

Ι

POWER S UPPLY, Ζ AXIS & CR T

(cont)

ASS EMBL Y Α 3 CIRCUIT SCHEM NU MBE R Ι L OCATIO N Ι LOCATIO N Ρ 9006-1 Ρ9006-2

P artial

3S 3S

Ι

2Α 2Α

CIRCUIT SCHEM NU MBER Ι LOCATION Ι L OCATIO N R98 R 983

3S 3S

2Α 2Α

Ι

- Ι

NUMBER Ι LOCATIO N I LOCATION 5390

4E



W 9000-1

4F



Ι

BOARD NUMBER Ι LOCATIO N Ι LOCATIO N

Ι

UCIRCUIT OSCHEM MBER Ι L CATIO N Ι LOCATIO N

Α 3 also shown on diagrams 1, 2, 3, 4, 5, 6 and 8.

ASS EMBLY Α6 CIRCUIT SCHEM NU MBER Ι LOCATION

BOARD

L OCATIO N

C900 C902 C903

5Β 5C 5C

2C 2Α 7Α

R900

5C



Ι

CIRCUIT SCHEM NUMBER Ι LOCATION Ι LOCATION

Ι

CIRCUIT NU MBER Ι L OCATIO N I LOCATIO N

R901 R 903

58 5C

38 18

Τ901 Τ903

58 5C

2Β 2Α

RT901

58

18

VR 901



1C

W9011 W9041 W9091 W9191

5Α 5C 5Α 5C

1C 18 1C 7θ

C H ASSIS M O UN T E D PA R TS CIRCUIT SCHEM NU MBER Ι LOCATION Ι L OCATIO N DS9150



CH ASSIS

F9001



CH ASSIS

FL9001



CH ASSIS

J 9800



CH ASSIS

Ρ9272



C H ASSIS

Ι

SCHEM NUMBER Ι LOCATION Ι LOCATION Ρ9273 Ρ9778 Ρ9788 Ρ9070-1 Ρ9070-2 Ρ9070-3 Ρ9870-10 Ρ9870-12 Ρ9870-14

5Ρ 4Ρ 4Ρ 8J Β -1 81 4Ρ 3Ν 8Ρ

C H ASSIS C H ASSIS C H ASSIS C H ASSIS C H ASSIS

C H ASSIS C H ASSIS C H ASSIS C H ASSIS

Ι

CIRCUIT NU MBER Ι L OCATO N I LOCATIO N Ρ9870-1 Ρ9870-2 Ρ9870-3 Ρ9870-4 Ρ9870-5 Ρ9870-7 Ρ9870-8

8Ρ 8Ν 7Ν 7Ν 6Ρ 5Ρ 7Ρ

C HASSIS C HASSIS

Q9070

81

C HASSIS

C HASSIS C HASSIS C HASSIS C HASSIS C HASSIS

Ι

CIRCUIT OSCHEM NUMBER Ι L CATION Ι L OCATIO N R9802A R 9802 B

2Α 3Α

CHASSIS CHASSIS

V9870



C HASSIS

ι

R573c

FROM W Τ32

LDO

~σ9 FROm Q5Τω τι ®

if3.ΓσVξ -~ιΛπr R8o5 5.bK

R ρρ4 ικ



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W94C0 Αβ25 Τ5 cs2a

ΦΙ3

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-α .GυΝ

L~ -8. bν1 1

+Θ. ωVΒ

cι-ιοQ

Ζ DRIVE

W-D400 Q8S4

ικ

Α5 Ι~.ατΙηΐ αιτ sωεΕΡ L~ ίc Βο~R α

β LEVξ L ΟΑ£Ος`

6.8 Κ ~r + &bUς 1οκ

3.ακ

CRS51~CR820

ιΝτΕΙν

-Β.6ΥFη

F31 ΝΤΕΝ R9BO28

ΣαΒΖα



R βΙο

2

CRESS

RβΙθ

Α ιΝΤΕΝ

,"9602 Α ιακ

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CP,ς83

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Ρ13RΟ2 Ι RΡm Ι 6.8κ Γ- +BSavr r (---

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-8α 5 3

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+5.Ζν1

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s .sax

CRS29

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5. ιΚ

ιο is

RB35

z.3zκ

αβ22 β22

5.1Κ

J9αΟα(,ή ΕΧΤ 2Αχι INPUT

Ί \Ν5Βοο

ΒΕΑΜ ΚΙΝρ ~

Α6 αΙιτεα

F9Cdl 1Α

R901 S.1K

5390

τ

T11,1

9,1 - φ ,7 3 - b VR9Ql ~

FL9Cbl

ω9Ο, Ι

11

R τ5ΟΙ 1C

Ζ

α 4ζλμλΙ Τ5Ο1

RSO3

ω9Ο41~'W904o 5

90ο I'M R 47οΚ

2

ς9Ο2 W5Ι9ι ;?205

33Ο

J ω9ιω~

j

Ι Ι 3

C5O4 22οΟ

ι

R9p5 ΒΖΚ

L

RE-1

R929 3Κ

R 2

'R92 θ Φ. ΒΚ

+1 C925 Τιοο, ιF

AC -80URςε POTENTIAL IS PRESENT IN THE PREREOULATOR AND IN ERTER CIRCUITRY. OISCONNΕ C7 THE POWER CORD FROM THE AC. POWER SOURCE 8ΕFΟRεΑΤΤΕΜΡΤΙΝG REPAIRS OR ΡΕ SΙΒΤΑΝΕε MEASUREMENTS . SEE THE ΜαιχτεχαχεεαειτrοΝοFτχιΧΜΑχυαμΒΕΟπσχ 8, FOR TROUBLESHOOTING INSTRUCTIONS .

asza R930 ιοgΚ

LINE TR)G ro g397

R92T

ΓιL~ναs25

ιοοκ

b6 <

ι2

Ι4 +5

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W9I50 _ Ι R91o 3w

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R9ι9~ ιικ

αS9150

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8

Π

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4

R922 C917 ίΟαo

5

13

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7

R913



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ι

TO CHASSIS OROUND

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ΑΝΙ 5ΟLΑΤΙΟΝ TRANSFORMER ΜUΒΤΒΕυ SΕΟΙΝΗΕΝ PROBING THE ΡRΙΜΑλΥ CIRCUITRY OF THE POWER SUPPLY, τχ ED F PRIMARY VOLTAGES ARE NOT

CR90Z

R9 ob ΗΖΚ

~2

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+GR904

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L

Ι Ι

Q835

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ξξξ R914

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R912 35~ ΤΡ 54ο R937

R934 3 Q~39 Q9 5 G

VR935 5ιν

R935 ι 2Ο

2235

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static Sensitive Devices See

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Manieuce Snow

CO MP O NENT NUMB ER

X AMPLE

E

ComAnent Number

CR9b2

' 3 ι 4 Ι 1 Ι Ι

L9(αΟ roια



zz

2

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ι

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1

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0&47

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+5.2Υ

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ε h ematiε ~ ιευιΙ NumtreT

NUMERAL AND LETTER Α7 SIGNAL LLNES TO Chass ι snωυ Medcomponenlshaeenσ kse,Gy Num άr oR FR0Ν ΟΤΘΕ R οΙΑΟRλΗΒ INDICATES τχε ριπ1 ίχ -$¢π eπΑ σι Repla[¢α b1 . ΕΙπ cΙπυΙ ΡαΠ S LιΑ. WiI0 COORDINATES ON ΑχΟτχεR ecχεΜλτις MR ΕΙΙΑΜΥLΕλει Α1 PF+RτI4 L h"1ΑΙΝ SOPRo

POWER

SUPPLY,

Z AXIS 42οe -25

CRT

2235 Service

2235 CO N T R O L

S ETT I NGS

+3V

Φ

PROBE GROUND LEAD ON TP940

/Vvz

Θν

+15V PROBE GROUND LEAD ON TP940

θν

+150MV

PROBE GROUND LEAD ON TP940

+100MV

+175V

PROBE GROUND LEAD ON TP940

0ν VOLTAGE A ND

Θν

DUTY CYCLE VARY W ITH INPUT L INE VOLTAGE

PROBE G ROUND LEAD ON TP940

-175V

AC Wavefo r ms

DC V o l tages

Pr ereg u 1ατ ο r and Inverter voltages ar e

W ARN Ι N G

I nst rum e n t mu st be conn ecte d to t h e ac- p owe r sour ce using ο 1 :1 isolation t r a nsform e r . Do not co nnect t h e test osci ll oscope pr o b e gr o und l ead to t he I n ve r te r ci r c u it test p oi n ts 1f t h e Instrument is not iso l ate d . AC-so ur ce vo l tage exists on r efe r ence p oi n ts ΤΡ 940 a nd ΤΡ 95 θ .

r efe r e n ced to test point n oted ad jace n t to t h e vo l tage . P ower s upp l y output vo l tages a r e r efer en ce d to chassis g round .

+80V PROBE GROUND LE AD ON TP950

0V

+80V PRO BE G ROUND LEAD ON TP950

0V

+0 .8 V

PROBE GROUND LE AD ON TP950

0V

+85V +3θV I

V A R I E S W IT H

NTENSITY SE TTI NG

+BV

ΘV

AC Wovefo r ms

VERTICAL MODE CH 1 V OLTS/D I V AC-CND-DC H ORIZONTAL MODE Α S EC/D I V Β S EC/DIV Β DELAY TIME POSITION Β T RIGGER LEVEL Α TRI GGER Mode Α&Β ΙΝΤ Α SOURCE CH

1

I

NPUT SIGNAL

CH 1 5mV DC ALT Sops 5 μθ RUN A FTER Ρ- Ρ AUTO CH 1 ΙΝΤ

D ELAY-CW

1-kHz sine wove, 5 d iv .

- +3 . ΘV Γ +2 .6V Α

I

NTENSIFIED r-"

Β

SWEEP

48

+45V +30V

CRT BLANKED

A MPLITUDE VARIES

WITH INTENS I TY

+15V

PO WER DIST R I BU TIO N

Ο 8

ASS EMBLY Α 1 CIRCUIT SCHEM NUMBER Ι L OCATIO N Ι LOCATIO N C200 C201 C220 C274 C451 C494 C499 C507 C590 C796 C797 C799

4Η 8Η 4G 3C 8F 4E 8Ε 6E 6Η 8L 4Κ 2D

3E 3E 2D 2G 6D 5D 5C 6C 7D 2G 3G 3F

E200 E201 E272 E590

4G 8Η 3D 6G

4E 4E 1G 8C

R220 R451

4Η 8Ε 4D 8Ε 8Κ 4Κ 2C 6θ 6E

2D 6D 5E 5E 2G 3G 3E 3Η 7E

R 494 R499

R796 R 797 R 799

R 964 R 966 Par tial

Ι NUMBER 7 Ρ961

W408 W494 W556

W590 W591 W592 W885 W954 W955 W956 959 W960 W961 W964 965 W968 W 971 W 972 W 974 W 975 W 976 W977 W979 991 992

W W

W W

Ι L Ο CΑΤΙΟΝ Ι L Ο C0ΑΤΟΝ 7Β



9D 4E 6C 7Η 6Η 6G 7Κ 1C 1C 2C 1C 3Β 7Β 2C 2C 6D 3C 3C 4J 4Κ 7C 7D 8Κ 4C 4C

7Β 5D 2Η 7C 7D BC 4G 6F 4Η 5F 4E 7F 8F 3Η 3Η 8F 7E 6Ε 3Η 3Η 7E 6E 3Η 58 5Α

Ι

NUMBER W993 W995 W997 W998 999 9001-12 9001-5 W9400-15 W9400-16 W9400-18 9400-23 W 9400-24 9400-25 W 9400-26 W 9400-27 W 9400-3 9700-8 W 9705-1 W 9705-4 W 9705-6 W 9705-7 W9705-8 W9991-1 W9991-2 W9991-3

W W W W W W

Ι LΟ C Α 7 ON Ι L OCOATRION 9C 9C 4G SG 8Η 5Ρ 4Ρ 6Ν 6Ν 6Ν 6Ν 6Ν 6Ν 6Ν 5Ν 6Ν 2Ν 3Ν 3Ν 3Ν 3Ν 2Ν 8Ν 9Ν 9Ν

58 68 4D 4E 2E 5Α 5Α 7E 7E 7E 7E 7E 8Ε 8Ε 8Ε 6E 7E 5E 5E 5E 5E 5E 5E 5E 5E

Α 1 also sh own on diagrams 2, 3, 4, 5, 6 and 7.

ASS EMBL Y Α 3 CIRCUIT SCHEM NUMBER Ι LOCATION Ι LOCATIO N W89 P artial



1C

Ι

NUMBER

W9000-12

Ι L Ο CΑΤΙΟΝΙ LOCATIO N 5Ν

Α 3 also shown on diagrams 1, 2, 3, 4, 5, 6 and 7



Ι

NUMBER

W9000-5

Ι LOCATIO N Ι L OCATION 4Ν



ΙΝ95 b +30V Ιι . π

ω9ώ 4

+~Α) ΟΟΟ

w9b 5 cz τa

+ B.bV ΙΡ

9m

ωοεα

ω sτι

ε z -τz

ω~τz

+~.~~α ,) ο

----Ι

+6- bνμ) Ο Ο 41

Rα 99 3. 3

W954

C494 .C~1yF

+Β .bνς) Ο

czoc ί , 2}

+ θ,(σνρ 4Z~q~

ω 99 ι

R22o 3. 3

ω992 ~+ B . bVF) Ο Οτ

ω9~Β

+5 .2ν lw 9Μ R%

R9Co4 4.~

W SS b

b R'τ

+52 V ι ) ο ~ Ο

g59a

J; 7 . 2,,,F

W592

ΤΡ 9 bι ω 9I'1

ω~7m

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W'.)7 7

RR 99

499 . οΙριF

3-3

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W SID,

W995

f\ Ι

- Β ,βνρ Β.eν~z)

. - ~Zk.lν) Ο 1

~ -Β .CσVτ ) Ο

Ρ1λRΤΙΑL hΛΑΙΝ θΟΑΡρ

2235

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'3-7 ω . ο )Ι --,. -~

ι

ow

ι

i0

i +8.bVg CND

Ι

i +B. bVg} ΟΓ WC)-JS

τ,

ω9το5 β

+3Ονg

+εs_νν ~

V4'Z!-Τ4

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-41 !-

C~ι 9~ Ο- Ιμ~

C~ Νρ ~-t3 .bVς Α3 ΡΑ RΤΙλ

α - θ. (.νΓ,,) Ορ ΟΟ + α_ bνρ

W'3,1ΡΟΙ -zτ Η +ΙΘ_bVq

+s. zvn

+5 .2\/ Ν i l+ Νρ

α +$ .2V,ς} ρ

i G ND λ Gh1D λ G Νδ αGΝζ) α G NLD i -Β. ωρ

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α +52ν~} ρ ω6α5

W9-[9

ΙΟ

Static Sensitive Devices

-3 . bνςλ

See Μαίπε eπαπεe seεtipn _3

ι

CO

MP ONEN T NU MBER EXAMPLE Cαm ρσπ¢πΓ Numb eΓ

¢ι Αμρ LETTER Α7 SIGNAL LINES 70

ORMFROM ONEk σιΑ G-5 ιχσιςΑΤΕ8 THE ω10 coonDINATEs ΟΝ ΑΝΟ7ΗΕ R SΟΧειωτfε ; ΕΟμ-ηρLΕ: ΛΕ/

POWER Di 5TRISUTiON

6 h αττ iεπιουυιΟ dεπmσοπe πϋ

pave πσ Αsse πιχγ rv υ mαι ρ'e fι e-se υπ d πι Θ eplueable γ7e[1r ιη1 Ροd τ (Ιτl

8240 DL CO MP ?

C Ρ C-

R241 DL CO MP 2

R 760 Χ GAI N

R 479 T R IGG ER S EN SITIVITY

R 471 S LO PE BA L

R435 Γ- i A U TO

R 646 D EL AY STA RT

Al-MAIN BOA R D ADJU S"

2235 Service

Ρ

:NT LOCATIONS

R874 ASTIG

R 870 G EO M

4206-44

C12 C3 C11 10Χ CH 1 10 Χ LF NI F /L F I NPU T C CO MP COMP C5

100Χ LF

R 47 CH 1 MF / L F GAIN HAL

R 10 CH 1 STEP BA L

R 26

CH 1

2- mV GAI N

R25 CH 1 VA R BA L

C26

CH 1

2-mV PEAK

CO M P

COMP C4

I

100 Χ NPUT C

R 33 CH 1 2/5- mV DC

C55

100 Χ LF CO MP

BA L

R 75 CH 2 IN VER T BA L

C54 100 Χ I NPU T C

R60

CH 2 ST EP BAL

4206-45 C62 10Χ LF CO M P

C61 10Χ I NPU T C

C53 CH 2 ΝΙ F /L F CO M P

R 97 CH 2 MF/ LF GAI N B AL

R 76 CH 2 2-m V GAIN

C76 CH 2 2- mV

PEAK CO MP

A2-ATT E NUATO R B OA R D AD J U STM E NT LOCATIONS

R 83 CH 2

2/5-mV DC BAL

R730 Β S WEE P GAIN

R740 Α S W E EP GAI N

C713 Β H IG H S PEE D TI M I N G

R749 M AG RE GIS

R 754 Χ 10 GAIN

C703 Α H IG H

S PEE D

TI M ING

A4-TIMING

B OAR D ADJU STME NT LOCATIO N S

2235 Service

R 652 D ELAY EN D

α2α6- α7

AS-ALT

S WEEP L OGIC B OAR D AD JU ST MEN T L OCATIO N S

I am the original producer of the PDF version of this document.

GENERAL N OTES

Α . U se sc h e m atic d iagrams, t h e ove r a ll b l oc k d iagr am, ci r c u it board i ll u st r atio n s, a nd ci r c u it desc r i p tions w h e n an a l yzi ng i n st rum en t ma l f un ctio n s and locati n g test p oi n ts . The sc h ematic d iag r ams i n c l ud e ty p ica l wavefo rm s and vo l tages t h at ar e i n te nde d as an ai d in t r oub l es h ooti n g . θ . A l ways set t h e P O WER switc h to O FF a nd unp l u g t h e li n e co rd b efo r e swapp i n g, r e m ovi n g, o r r e p l aci ng com p o n en ts, a nd befo r e conn ecti n g o r d isconn ecti n g i n st rum en t lea d s and ca b l es . C . When a n a l yzi n g ci r cu it ma l f unctio n s, co n si d e r connecto r s and ca b l es as p ossi b l e ca u ses of fai l ur e . 1 . Set

initial

P O WER

ify t h e low-vo l tage p ower fo ll owi ng test p oi n ts : +5 .2 V +8 .6 V -8 .6 V +30V +1 00 V

T E ST POINT W 968 W 960 ΤΡ961 W 956 W 954

s upp l ies

at

B ASE

PUSH IN A ND PUSH BU TTON

t he

TOLER A NCE 5 .04 το 5 .36 V 8 .43 το 8 .77 V -8 .56 το -8 .64 V 29 .1 to 30 .9V 97 το 103 V

V e r ify t h e -2 kV s upp l y at pin 2 of t h e c r t soc k et . T h e vo l tage s h o u l d b e b etwee n -1900 and -210OV . I n ve r te r ci r cu its h ave ο f l oati ng co mm on r efe r ence wit h r es p ect to c h assis g r o und . Ac-so ur ce pote n tia l is pr ese n t on t he common r efe r en ce p oi n ts . Co nn ect t h e i n st ru me n t to t h e ac-p owe r sour ce t hr o u g h an iso l ation t r an sfo r me r to pr eve n t t h e p ossi b i l ity of p er so n a l Injury o r equ i pm e n t damage whe n t r o ub l es h ooti ng t h ese ci r c u its .

The Pr e r egu l ato r and

YES

H O L D BEAM F I N D

Α HV pr o b e is requ i r e d to measur e t h e -2 kV s upp l y . T urn off t h e p owe r and m a k e t h e test equ i p me n t connectio n s to t h e osci ll oscop e . Set t h e vo l tmete r 1 ο r ea d at least -3 kV , t h e n t urn t he osci ll oscop e p ower b ac k on to ta k e t h e r ead i n g . Afte r o b tai n i n g t h e r ea d i n g, t urn off t h e osci ll osco p e p owe r to d isconn ect t he test e qu i pm e n t co nn ectio n s, a nd r e p l ace t h e c r t soc k et cove r .

WARN I NG

DO E S Α L I NE T RAC E A PPE A R? NO

NOTE

3.

I N IT I A L FRO N T- P A NEL CO N T RO L S E TT I N GS (NOTE 1) CO NNE CT PO WER CORD TO Α S U I TA BLE ACP OW ER SOUR C E A N D A PPL Y PO WER TO THE I NST RUMEN T

f ron t- p a n e l co n t r o l s as fo ll ows :

Ver

SUPPL Y

SE T

S PEC I F I C NOTES

Switc h ON ( bu tto n in) Α I N T EN SITY Mi dr a n ge F OC US Mi dr a n ge V e r tica l P OS I T I O N M i dr a n ge C VER TICA L M ODE H 1 C H 1 V OL TS/D I V Θ .1 V C H 1 V O L TS/D I V V a r iab l e Ca l dete n t C H 1 AC-G N O-DC GNO H o r izon ta l P OS I T I O N M i dr a n ge H O R I ZO N TA L M OD E Α Α S E C/D I V θ .1ms Α S E C/D I V V a r iab l e Ca l dete n t Χ 1 θ Mag n ifier Off (kn o b in) Α T R I GGER M o d e Ρ - Ρ A U TO ΑδΒ ΙΝΤ VER T MODE Α SO UR C E ΙΝΤ 2.

TROUBLE S H OOT I NG GU I DE

DO E S Α

B AS E L I NE

~ YE S r--i

T R ACE

APPE A R?

NO

VER I F Y LOW VOLTAGE SUPPLIES A ND -2 kV S UPPL Y A RE IN TOLER A N C E (NOTE 2)

A RE A LL PO WER S UPPL Y V O L TAG ES 0Κ ? /

NO

YE S

NUMBER I N DII SC HEM ATIC D

PRESS IN A ND HOLD BEAM F I ND PUSH BUTTON

DOES Α B ASE L I NE T RACE A PPEAR?

1S TRACE NEARLY CENTERE ΙΝ ΤΗΕ GRAT I CULE WITH BOTH POS I TION C (HORIZONTAL AND VEF \ENTERED IN THE RANGE?

YES

ΝΟ

Y ES

RELEASE BEAM F I ND

AD JUST F OCUS AND NTENS I TY CONTROLS F OR Α WELL-DEF I NED V I S I BLE D I SPLAY . USE MANUAL PERF O RM ANC E C HE CK PROC E D URE TO VER I FY I NSTRUMENT FUNCT I ONS I

CHECK TP842 FOR Z-AXIS UNBLANK I NG PULSE (VAR I ES FROM 10V TO 60V Ρ-Ρ W I TH I NTENS I TY CONTROL) 7*

TROUBLESHOOT C I RCU I TRY ASSOC I ATED W ITH ANY F AUL TY FUN CT I ON S L OCATED

IS UNBLANK NG PULSE `R SENT?

TROUBLE S H OOT DC RESTORER A ND CRT C I RCU I T 7*

YES

NO

CHECK R707 F OR THE Α

RELEASE BEAM F IND, TURN I NTENSITY CONTROL FULLY C W > AND AD J UST THE VERT I CAL AND HORIZONTAL P OS I TION CONTROLS

Y ES

S CORRECT \ .i ρ Α SWEEP SAWTOOTH }PRESENT? / I

ΝΟ SEE MANUAL AD J USTMENT PROCEDURE TO ADJUST CRT GR I D B I AS AND F OCUS

B AD?

_ I Ι

T ROUBLESHOOT Α

S WEEP

G ENERATOR

A ND Α

S WEEP

L OG I C

C I RCU I TS

4*

YES

CHECK C RT HORIZONTAL DEFLECT I ON PLATE P I NS F OR Α S WEEP SAWTOOTH (,' 40V Ρ -Ρ ON E ACH LEAD)

YES ARE A LL ~ V OLTAGES

SAWTOOTH ( ' 12V Ρ - Ρ )

DOES Α\ B ASE L I NE T RACE A PPEAR?

T ROUBLESHOOT PREREGULATOR A ND I NVERTER C I RCU I TRY . WARN I NG (NOTE 3) 7*

AT ES AG RA M

4*

S WEEP

No

T ROUBLESHOOT F AULTY SUPPLY 7* TURN C RT GR I D B I AS ADJ R 851 FULL Y C L OCKW I S E 7*

/ I S CORRECT Α S WEEP SAWTOOTH PRESENT ON BOTH P INS? YES T RO UBLE S H OOT Z-AXIS A N D C R T CI R C U I TS 7*

NO

TROUBLESHOOT HORIZONTAL AMPL I FIER A ND SWEEP S W I TCH I NG C I RCU I TS 5 ,6 *

2235 Serv i ce

T R ACE C EN T ERED J IC ULE A RE A 1 ΙΤΙΟΝ CO N T RO L S A ND VER T I CA L) 7 IN T HE I R

ΝΟ

I S T RAC E O FF ςΕΝΤΕ R H O R I ZO N TA LL Y O R VER T I CA LL Y?

,N GE?

Y ES

VERT I CA LL Y OFF C EN TER

ο π

RELE ASE BEAM F I N D BU TTON AND M O MEN TAR I L Y S H O RT AC R OSS D EL AY L I NE LE ADS

Ό ρ

HOR I ZON TA LLY OFF CENT ER

TROUBLE S H OOT HOR I ZO N TA L A MPL I F I ER CI RCU I T R Y 6*

z C C

ς G m / DO ES T R AC E CO ME TO NE AR C EN T ER O F GRAT I C ULE A RE A?

NO

TRO UBLE S HOOT VER T I CA L O U T PU T A MPL I F I ER 2*

Y ES

TRO UBLE S HOOT VER TICA L ATT ENU ATOR X1/X10 AMPL > VER T I CA L PRE AMPL I F I ER, A N D D EL AY L I NE DR I VER F O R SO URC E O F I MBALA N C E 1 >2 *

T R O UBLE SH OOT I N G G U I D E 4206-99

Section 10-2235 Service

REPL AC E A BLE ME C H A N ICA L P A R TS P AR TS

O R D ER I N G I NF O RMATIO N

R eplacement p arts are available from o r t hrough your local Te kt r o n ix, I nc . F ield Office or representative .

I

T his mechanical parts list is indented to indicate item relatio nships. F ollowi ng is an exam p le of the i nd entation system u sed i n t he d esc ri ption colum n.

Ch anges to Tek tro nix i nstru me n ts are sometimes made to accommodate im prove d components as they b ecome availa ble, and to give you t he benefit of the latest ci rcuit i mp rove ments d eveloped in our engi neering d epartment . It is therefore i mp orta nt, when o rd eri ng parts, to i ncl ud e the followi n g i n formatio n i n your o rder : P art number, i n st rument ty pe or nu m ber, serial n umb er, and mod ificatio n nu m be r if app lica ble .

1 2 3 4 5

Cha nge i nfo r mation , if any, is located at the rear of this SPE CIAL

NOTES

ΧΟΟΟ

P art first

ΟΟΧ

P art removed

A ND SY MB O LS

add ed at t h is se rial numb er after this serial nu mber

Parts of Detail P art Attaching p arts fo r Parts of Detail Part --- - -Attachi ng P arts always app ea r i n t he sa me i nd entation as t h e item it m ou nts, wh ile the d etail parts a re i nd ented to the rig ht. I nd ente d items are pa rt of, and i ncl ud ed with, t he n ext h ig her i nd e n tation. The se paratio n symbol---'--- i nd icates the en d of attach i ng p a rts . Attaching p arts mu st b e purchased se parately, un less ot herwise specified.

F IG URE A ND INDEX NUMBER S Ite ms i n t h is sectio n a re reference d by figure and i ndex nu mbers to the ill ustratio n s.

N ame & Description

Assembly and/or Co mp onent Attaching parts fo r Assembly and/or Component -- - - -Detail Part ο 1 Assembly and/o r Component Attaching pa rts fo r Detail P art

If α p art you h ave ordered has been replaced with α n ew or im pr oved part, your local Te ktro nix, I nc. F iel d Office or representative will co n tact you co ncerning any c h a n ge in part nu mber .

m a nu al .

N DENTATIO N SYST EM

ITEM NAME In the P arts L ist, an Item N ame is se parated from t he d escri ption by α colo n ( :) . Because of space li m itatio ns, an Item Name m ay so metimes app ea r as i ncomplete . Fo r f ur th e r Item Na me i dentificatio n, the U .S . Federal Catalogi ng H andboo k Η6-1 ca n be u tilize d where possi ble .

ABBREV IATIO NS I NCH ELCT RN ELECT RON ε NUMBER SIZE ELE ELEC CT R ICAL ACT ACTR UATOR ELCT LT ELECT ROLYTIC AD PTR ADAPTER ELEM ELEMEN T A LIG N A L IG NMENT EPL ELECT R ICA L P A R TS LIST AL A LUMI NUM EQPT EQUI PMEN T ASSEM ASSEMBLED ΕΧΤ EXTERNAL ASSY ΑΤΤΕΝ A WG

ASSEMBLY ATTENUATOR

F IL

FLEX

FILLISTER HEAD FLEXIBLE

AMERICAN WI RE GAGE FLH FLAT HE AD B D SO B OA RD FL TR FI LTER BR BRKT AC KE T FR SST FR AME or FR O NT BR SST BR ASS FST NR FAST ENER B R ZPH BR ONZE FT F OOT BSHG BU SHI NG FXD F IX ED CA B CA BI NE T GS KT GASKET P ACITOR CA CA P H DL HA NDLE

C ER C HAS C KT

COMP CONN COV C PLG C RT D EG D WR

C ERAMIC

CHASSIS CIRCUIT COMPOSITION CONNECTOR COVER COUPLING CATHODE RAY TUBE D EGREE D RAWER

HEX

HEX H D

HEX SOC HLCPS HLEXT HV IC ID (DENT IMPLR

HEXAGON HEXAGONAL HEAD HEXAGONAL SOCKET HELICAL COMPRESSION HELICAL EXTENSION HIGH VOLTAGE INTEGRATED CIRCUIT INSIDE DIAMETER IDENTIFICATION I MPELLER

IN I NCA ND I NSUL I NTL LPHL DR MAC H MECH MTG

INC H

INCA NDESC EN T I NSUL ATOR I NTERNAL L AMPH OL DER MAC HI NE

MECHANICAL M OUNTING NIP N IPPLE NON W I RE NOT W I RE WOUN D

OBD OD OVH ΡΗ BRZ PL PL STC PIN ΡΝΗ PWR R CPT RES RGD RLF RTNR SCH SCOPE SCR

ORDER BY DESC RI PTION OUTSID E DIAME TER OV A L HE AD OSPH O R BRONZE PL AI N o r PL AT E PL ASTIC PART NUMBER PAN HEAD POWER RECEPTACLE RESISTOR R IGID RELIEF RETAINER SOCKET HEAD OSCILLOSCOPE SCREW

SE

SI NGLE EN D SECT SECTIO N S EM ICOND SEM ICONDUCTOR S HL D SHI EL D S HL DR SHOUL DERED S KT SOCKE T SL SLIDE SLFLKG S LVG

SELF-LOCKING SLEEVING

ST L SW Τ T ERM T HD

SQU A RE STAINLESS STEEL EEL S WITCH T UBE T ERMI NAL THRE AD THICK T ENSION .

S PR

THK T NSN T PG TRH V VAR W/ WSHR X FMR XSTR

SPR ING

TAPPING T RUSS HEAD VOLTAGE VARIABLE ITH WASHER T RANSFORMER T RANSISTOR

W

Replaceable M ec hanical P arts-2235 Service

C ROSS I NDEX- MFR. CODE NUMBER TO M ANUFACTURER M fr . Code 00779 01536

M anufacture r

A dd ress

AMP, I NC. Ρ Ο BOX 3608 CA MCAR DI V O F T EXT RON I NC. SEM S PR OD UCTS UN IT 1818 CHR ISTI NA ST . 02768 I LL I NOIS TOOL WORK S, I NC., FASTEX DIV. 195 ALGO NQU I N ROAD 05129 KI LO EN GI NEER I N G COMPANY 2015 D 06383 PANDU IT CO RP ORATION 17301 R IDGELA ND 123279301 FREEWAY CORP ORATIO N ALLEN DRI VE 12697 CLAROSTAT MFG. CO ., I NC. LOWER WAS HI NGTON ST REET 13511 AMPHENOL CA RD RE DIV., BUNKER RAMO CO RP . 16428 BELDEN CO RP . Ρ. Ο. BOX 1331 22526 BERG ELECT R O N ICS, I NC. YO UK EXPRESS WAY 24931 SPE CIALITY CO NNECTOR CO ., I NC. 2620 ENDRE SS PLAC E 71400 BU SS MAN MFG., DI V ISIO N OF MCG RAWEDISO N CO . 2536 W . UN I VERSITY ST. 73743 FISCHER SPE CIAL MF G. CO . 446 MORGA N ST. 77820 BENDIX CO RP ., THE, ELECT RICAL CO MP ONENTS DI V ISIO N SHERMAN AVE . 78189 I LL I NOIS TOOL WORK S, I NC. SHAKEPR OO F DI VISION . CHARLES ROAD ST 80009 TEKTR O NIX, I NC. Ρ Ο BOX 500 80126 PACIFIC ELE CT R ICORD CO . 747 W . REDO NDO BEACH,P Ο BOX 10 83385 CEN TRA L SC REW CO . 2530 CRESC ENT DR. 89663 REE S E, J . RA MSEY, I NC. 71 MURR AY ST REET 93907 TEXT R ON I NC. CA MCAR DI V 600 18TH AVE S3109 C/O PANEL CO MPONENTS CO RP . Ρ. Ο. BOX 6626 S3629 PANEL CO MPONENTS CO RP . 2015 SECOND ST .

10- 2

City, State, Zi p HARR IS BURG, PA 17105 R OCKFORD, I L 61108

DES PLAI NES, I L 60016 L A VERNE, CA 91750 TI NLEY PARK, 1L 60477 CLEVELAND, OH 44125 DO VER, NH 03820 LOS GATOS, CA 95030 R IC HM OND, IN 47374 NEW CUMBERLA ND, PA 17070 GREENWOOD, IN 46142 ST . L OUIS, MO 63107 CI NCI NN ATI, OH 45206 SIDNE Y, NY 13838 EL GI N, I L 60120 BE AVERTO N, OR 97077 GAR DEN A, CA 90247 BR OADVI EW, I L 60153 NEW YO RK , NY 10007 ROC KFORD, I L 61101 SA NTA ROSA, CA 95406 BERKELEY, CA 94170

REV ΜΑΥ 1983

R ep lacea ble

Fig .

&

I ndex

No .

Tektronix Part No .

Se rial/ Model No . Eff Dscont

Qty

1 2 3 4 5

-2

334-5001-06 334-5001-07 200-2538-00

1 1 1

M ARKER ,IDENT: MARKED CA UTION U.S .A . M ARKER,[D ENT: MARKED CA UTION U.K .

-3

211-0691-00

2

-4 -5 -6

213-0882-00 334-4714-00 367-0289-00

1 1 1

-7

212-0144-00

2

-8

390-0790-06

1

1-1

REV ΜΑΥ 1983

N ame & Descri ption

COVER,RE AR:PLASTIC """""""(ATTACH I NG PARTS)"""""' SC REW, MAC HI NE :6-32 Χ 0.625, ΡΝΗ """"""(END ATTACHI NG PARTS)""""' SC REW,TAPP ING:6-32 Χ 0.437 TYPE C M ARKER ,IDEN T: MARKED HANDLE TAG HANDLE ,CARR YI NG:13.855,SST ""'*""""(ATTACH I NG PARTS)"""""' SC REW,T PG,TF:8-16 Χ 0.562 L '""""""(EN D ATTACHI NG PARTS)""""' CABI NET,SCOPE : W/FEET

Mech a n ical

Mfr

P arts-2235

Service

Co de

M fr

80009 80009 80009

334-5001-06 334-5001-07 200-2538-00

01536

OBD

01536 80009 80009

OBD 334-4714-00 367-0289-00

93907

225-38131-012

80009

390-0790-00

Part Nu mbe r

10- 3

ΙΙ

ω '1Ι 1y1ι ~

2

2235 SERVICE

Ι

ι 79

φ©

Φ

Φ

59

64

Ι Ι U1 ς

~ι ~ Ι υ φ

R ep laceab le Mechan ical Parts-2235 Service

F ig .

& Index No .

Tektronix P art No .

2-1 -2

334-5002-00 426-1765-00

1 1

-3

211-0690-01

2

-4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 -15 -16 -17 -18 -19 -20 -21 -22 -23 -24 -25

337-2775-00 366-1391-03 366-2146-03 366-1833-01 366-1701-01 210-0583-00 210-0021-00 366-2152-00 366-2148-01 331-0328-00 210-0840-00 366-2013-00 366-2049-00 131-0126-00 366-2151-01 210-0583-00 366-1840-02 366-1850-00 131-0955-00 210-0255-00 333-2918-00 386-4850-00

1 1 1 4 1 1 1 2 2 1 1 9 2 2 1 1 1 1 1 1 1 1

-26 -27

213-0881-00 213-0882-00

3 2

-28 -29 -30

348-0660-00 361-1192-00 407-2824-00

4 1 1

-31

210-0586-00

2

-32 -33 -34 -35 -36 -37 -38 -39 -40 -41 -42 -43 -44

214-3375-00 441-1631-00 213-0881-00 386-4443-00 200-2519-00 214-1061-05 426-1766-00 344-0347-00 334-1379-00 334-1951-00 337-2774-00 ----- --------- ----346-0121-00

2 1 4 1 1 . 1 1 1 1 1 1 1 2

-45

213-0882-00

2

-46 -47 -48 -49

346-0128-00 136-0202-08 334-4251-00 337-2772-00

1 1 1 1

-50

211-0304-00

3

-51 -52

348-0555-00 344-0334-00

1 1

REV ΜΑΥ 1983

Serial/Model No . Eff Dscont

Qty

1 2 3 4 5

N ame & Description

PLATE,IDENT :MKD TEKTRONIX FRAME,CRT: """""""(ATTACHING PARTS)"""""' SCREW,MACHINE:6-32 Χ 0.875 PNH,TORX DR,SLO """"""(END ATTACHING PARTS)""""' SHLD,IMPLOSION : KNOB :DOVE GRAY,0.081 ID Χ 0.28 OD Χ 0.32 Η KNOB :DOVE GRAY,0.235 ID Χ 0.5 OD Χ 0.531 Η KNOB :DOVE GRAY,0.25 ID Χ 0.392 OD Χ 0.466 KNOB :GY,0.127 ID Χ 0.392 OD Χ 0. NUT, ΡLΑΙΝ,ΗΕΧ :0 .25-32 Χ 0.312 INCH,BRS WASHER,LOCK : INTL,0 .476 ID Χ 0.60" ΟΟ ST KNOB :DOVE GRAY,0 .284 ID Χ 0.392 OD Χ 0.466 KNOB : GΥ,V ΟLΤS/DIV 0.72 OD,0 .79H DIAL,CONTROL :10 TURN FOR 0.25 DIA SHAFT WASHER,FLAT : 0.39 ID Χ 0.562 INCH OD,STL PUSH,BUTTON :DIRTY GRAY,0 .134 SO Χ 0.480 KNOB :GY,0.712 ID Χ 0 .41 OD Χ 0.496 H,W/BAR CONNECTOR, R CPT, :BNC,FEMALE KNOBTLINT GRAY,0 .22 ID Χ 0.392 OD Χ 0.466 NUT,PLAIN,HEX:0 .25-32 Χ 0.312 INCH,BRS KNOB : G Υ,ΤΙΜΕ/DI V ,0 .127 ID Χ 0.855 KNOB : CLΕΑR ,0.252 ID Χ 1.2 OD Χ 0 CONN,RCPT,ELEC :BNC,FEMALE TERM Ι NAL,LUG:0 .391 ID,LOCKING,BRS CD PL PANEL,FRONT: SUBPANEL,FRONT : """""""(ATTACHING PARTS)"""""' SCREW,TAPPING :6-32 Χ 0.25 ΤΥΡΕ C SCREW,TAPPING :6-32 Χ 0.437 ΤΥΡΕ C """"""(END ATTACHING PARTS)""""' CUSHION,CRT:POLYURETHANE S PACER,SLEEVE : 0.45 L Χ 0.25 ID,AL BRACKET,GROUND :PANEL """""""(ATTACHING PARTS)"""""' NUT,PL,ASSEM WA :4-40 Χ 0.25,STL """"""(END ATTACHING PARTS)""""' LEVER,SWITCH :AC-GND- DC,PLASTIC CHASSIS,SCOPE:FRONT SCREW,TAPPING :6-32 Χ 0.25 ΤΥΡΕ C SUPPORT,SHIELD :CRT,FRONT,PLASTIC CAP.,CRT SOCKET :NATURAL LEXAN SPAING,GROUND: PLATED M OUNT,RESILIENT :CRT,REAR CLIP,ELECTR ICAL : ANODE, 0.72 OD,NYLON LABEL: CRT,ADHESIVE BACK MARKER,IDENT :CRT WARNING SHIELD,ELEC :CRT,STEEL DELAY L INE,ELEC :93NS,150 ΟΗΜ, ΑSSΥ (SEE DL9210 CHASSIS REPL) STRARELEC COMP :TIE DOWN,5 .0 LONG """"""'(ATTACHING PARTS)"""""' .SCREW,TAPPING :6-32 Χ 0.437 ΤΥΡΕ C """"'(END ATTACHING PARTS)""""' STRAP,TIE DOWN :0 .1 W Χ 8.0" LONG,NYLON SKT,PL-1 Ν ELEK :ELECTRON TUBE,14 CONTACT MARKER,IDENT :MKD CAUTION SHIELD,ELEC :POWER SUPPLY,AL """""""(ATTACHING PARTS)"""""' SCREW, MACHINE:4-40 Χ 0.312,ΡΝΗ """"""(END ATTACHING PARTS)""""' GROMMET,PLASTIC :SIL GY,U SHAPE,0.52 ID CLIRCIRCUIT B D:PLASTIC

M fr

Code

M fr P art Number

80009 80009

334-5002-00 426-1765-00

93907

OBD

80009 80009 80009 80009 80009 73743 78189 80009 80009 05129 89663 80009 80009 77820 80009 73743 80009 80009 13511 80009 80009 80009

337-2775-00 366-1391-03 366-2146-03 366-1833-01 366-1701-01 2Χ20317-402 1222-01-00-0541C 366-2152-00 366-2148-01 461-S-70 644R 366-2013-00 366-2049-00 9663-1 NT-34 366-2151-01 2Χ20317-402 366-1840-02 366-1850-00 31-279 210-0255-00 333-2918-00 386-4850-00

01536 01536

OBD OBD

80009 80009 80009

348-0660-00 361-1192-00 407-2824-00

83385

OBD

80009 80009 01536 80009 80009 80009 80009 80009 80009 80009 80009

214-3375-00 441-1631-00 OBD 386-4443-00 200-2519-00 214-1061-05 426-1766-00 344-0347-00 334-1379-00 334-1951-00 337-2774-00

06383

PLC1 .51-S8

01536

OBD

06383 80009 80009 80009

PLT2M 136-0202-08 334-4251-00 337-2772-00

01536

OBD

80009 80009

348-0555-00 344-0334-00

10-5

Replaceable M ec h a n ical P arts-2235

F ig . &

Index No . 2-53 -54 -55 -56 -57 -58 -59 -60 -61 -62 -63 -64 -65 -66 -67 -68 -69 -70 -71 -72 -73 -74 -75 -76 -77 -78 -79 -80 -81 -82 -83

10-6

Te ktronix P a rt No .

Se rial/ Model No . Eff Dscont

Se rvice

Qty

1 2 3 4 5

N ame & De scription

134-0158-00 2 BUTTON,PLUG:0 .187 DIA, NYLON 02768 200-2264-00 1 CA P., FU SEH OLDER :3AG FU SES 200-1388-03 1 CO VER,FU SE,LEAD : POLYURETHANE 204-0833-00 1 BODY, FU S EH OLDER :3AG & 5 Χ 20 ΜΜ FU SES 210-1039-00 1 WASHER, LOCK : ΙΝΤ ,0 .521 ID Χ 0.625 I NCH Ο 131-0955-00 1 CO NN,RCPT, ELEC: BN C,FEM ALE ----- ----1 FI LTER , RF I :1A,250VAC ----- ----(S EE FL9001 CHASSIS REPL) ......* ..*. .'.(ATTAC HI NG PA RTS)"""""' 211-0323-00 2 SCREW, MAC HI NΕ:4-40 Χ 0.312,FLH ,100 DEG 210-0583-00 2 NU T, PLAIN, HE X :0 .25-32 Χ 0.312 I NCH,BR S """"""(EN D ATTACHI NG PA RTS)""""' 200-2845-00 1 CO VER,C KT BD : LI NE FI LTER 670-7615-00 1 CKT BOAR D ASSY : EM I FI LTER BOA RD ----- ----(S EE Α6 REPL) .. ... .........(ATTAC HI NG PA RTS)"""""' 210-0586-00 2 NUT, PL ,ASS EM WA :4-40 Χ 0.25,ST L 83385 .' ... ... . .. .(EN D ATTACHI NG PA RTS)""""' 129-0339-00 2 POST,ELEC- MECH:0 .27 L ONG Χ 0.25 HEX BR S '.. . .""""'(ATTAC H I NG PA RTS)"'."""' 211-0303-00 2 SCREW,MACH I NE :4-40 Χ 0.25, FLH 100 DEG """"'.. .(EN D ATTACHI NG PA R TS)""""' 210-0202-00 1 TERMI NAL, LU G:0 .146 ID, LOC KI NG, BR Z TI NNED "(ATTACHI NG PA RTS)"'."""' 210-0457-00 1 NU T, PL,ASS EM WA:6-32 Χ 0.312,STL CD PL """"""(END ATTACHI NG PA RTS)""" .. . 334-3379-02 1 MA RKER ,IDEN T :MARKED GROUN D SY MB OL 80009 407-2729-00 1 BR AC KE T, HE AT SK:A L 80009 ............. .(ATTAC HI NG PA RTS)""' .""' 211-0304-00 1 SC REW, MAC HI NE A-40 Χ 0.312,ΡΝΗ 210-0586-00 2 NU T, PL ,ASS EM WA :4-40 Χ 0.25,STL 83385 """" ."'(EN D ATTACHI NG PA RTS)""."" 211-0302-00 1 SC REW, MAC HI NE :4-40 Χ 0.75, ΡΝΗ 210-0586-00 1 NU T, PL ,ASS EM WA:4-40 Χ 0.25,ST L 83385 342-0582-01 1 I NSULATOR, PLATE:T RANSISTOR,C ER AMIC 343-1025-00 1 RETAINER,XST R: 211-0691-00 1 SC REW, MAC H I NE :6-32 Χ 0.625,ΡΝΗ 210-0408-00 1 NU T, PLAIN, HEX. :6-32 Χ 0.312 I NCH,BR S 342-0555-00 1 INSULATOR, PLATE: HEAT SI NK ,A L 80009 343-0969-00 1 RETAINER,XST R:P OLYPHEN YLENE SULFID E 361-1047-00 1 SPAC ER,VAR RES:0.3 Χ 0.615 Χ 0.55 441-1536-01 1 CHASSIS,SCOPE : REAR 80009 161-0104-00 1 CABLE ASSY,PWR, :3 WIR E,98.0" L ONG ----- ----(A LSO SEE STANDA RD ACCESSORI ES) 161-0104-06 1 CA BLE ASSY,PWR :3 Χ 0.75ΜΜ SQ,220 V,98.O L S3109 ---- ----(OPTION Α1 EUROPE AN) 161-0104-07 1 CA BLE ASSY,PWR :3 Χ 0.75ΜΜ SQ,240 V,98.0 L ----- ----(OPTION Α2 UN ITED KI NGDOM) 161-0104-05 1 CA BLE ASSY,PWR :3,18 AWG,240V,98.0 L ---- ----(OPTION Α3 AUST RA LIAN) 161-0104-08 1 CA BLE ASSY,PWR:3,18 AWG,240V,98.0 L ----- ----(OPTION Α4 NO RTH AMERICAN) 161-0167-00 1 CA BLE ASSY, PWR:3 .0 Χ 0.75,6A,240 V,2 .5 M S3109 ----- ----(OPTION Α5)

M fr

Code

Mfr Part

S3629 80009 S3629 24931 13511

207-080501-00 FEK 031 1666 200-1388-03 031 .1653( MDLFEU ) OBD 31-279

83385 73743

OBD 2Χ20317-402

80009 80009

200-2845-00 670-7615-00

Nu mber

OBD 80009

129-0339-00

01536

OBD

78189

2104-06-00-252ΟΝ

83385

OBD 334-3379-02 407-2729-00

01536

OBD OB D

01536

ΟΒΟ OBD 342-0582-01 343-1025-00 OB D 3040-402 342-0555-00 343-0969-00 361-1047-00 441-1536-01 ΚΗ 8352

80009 80009 01536 73743 80009 80009 16428

OBD 80126

OBD

S3109

OBD

80126

O BD OB D

REV ΜΑΥ

1983

R eplaceable M echanical Parts-2235

Fig . &

Index No .

Tektronix Part No .

3-1 -2

Serial/Model No . E ff Dscont

N ame & Description

Qty

1 2 3 4 5

334-4251-00 337-2773-00

1 1

M ARKER,IDENT:MKD CAUTION

-3

211-0304-00

1

-4 -5 -6 -7

-18

366-1480-02 384-1576-01 200-2735-00 ----- --------- ----377-0512-00 670-7611-00 ----- ----131-0608-00 136-0499-02 670-7612-00 ----- ----131-0589-00 670-7560-00 ----- ----131-0608-00 131-0589-00 343-0088-00 672-1064-00 346-0196-00

1 1 1 1 6 1 2 3 1 27 1 3 7 1 1 1

-19 -20

211-0325-00 210-0801-00

2 1

-21 -22

361-1191-00 337-3014-00

1 1

-23 -24

211-0325-00 211-0326-00

1 2

-25

670-7561-00 ----- -----

1 -

-26 -27

211-0325-00 129-0986-00

1 1

-28

-32 -33

384-1056-00 376-0209-00 401-0370-00 210-0406-00 214-1126-01 214-1126-02 214-1752-00 401-0369-00

2 . 2 4 4 6 2 8 2

-34

311-0325-00

2

-35 -36 -37

105-0934-00 105-0935-00 343-1020-00

2 2 2

-38

211-0325-00

4

-39 -40

361-1193-00 131-1758-11 131-1758-12 131-0787-00 131-0608-00

2 2 2 2 11

-8 -9 -10 -11 -12 -13 -14 -15 -16 -17

-29 -30 -31

-41 -42

REV ΜΑΥ 1983

SHIELD,ELEC :POWER SUPPLY,LOWER, PLSTC """'*"""(ATTACHING PARTS)""'*""' SCREW, MACHINE :4-40 Χ 0.312,ΡΝΗ """"""(END ATTACHING PARTS)""""' PUSH BUTTOWGRAY EXTENSION SHAFT:12 .809 L,PLASTIC COVER,POWER SW : SWITCH,PUSH :DPDT,4A,250VAC,W/BRKT (SEE AlS901 REPL) INSERT,KNOB :0 .125 ID Χ 0.663 L,AL CKT BOARD ASSY :FRONT PANEL (SEE Α3 REPL) .TERMINAL,PIN :0 .365 L Χ 0.025 ΡΗ BRZ GOLD .CONNECTOR,RCPT, :2 CONTACT CKT B OARD ASSY :ALTERNATE SWEEP (SEE Α5 REPL) .TERMINAL,PIN :0 .46 L Χ 0.025 SQ CKT B OARD ASSY :MAIN (SEE Al REPL) .TERMINAL,PIN :0.365 L Χ 0.025 ΡΗ BRZ GOLD JΕR ΜΙΝΑ L, PIN: 0.46 L Χ 0.025 SQ .CLAMP,LOOP :0 .062 INCH DIA CKT B OARD ASSY :ATTENUATOR/TIMING STRAP,GROUND :ATTEN,3 .0 Χ 0.75 .* ....... .*(ATTACHING PARTS)"""""' .SCR,ASSEM WSHR :4-40 Χ 0.25,PNH,TORX DRIVE .WASHER,FLAT :0 .14 ID Χ 0.025 THK,BRS ΝΙ """""'(END ATTACHING PARTS)""""' SΡΑ C ΕR,CΚΤ B D:0 .222 Χ 0.125 Χ 0.25 .SHIELD,ELEC :ATTENUATOR TOP """""'(ATTACHING PARTS)"""""' SCR,ASSEM WSHR :4-40 Χ 0.25,PNH,TORX DRIVE .SCREW,MACHINE :4-40 Χ 1 .25,PNH,TORX DRIVE """"'(END ATTACHING PARTS)""""' CKT BOARD ASSY :ATTENUATOR .(SEE Α2 REPL) """"""'(ATTACHING PARTS)"""""' SCR,ASSEM WSHR :4-40 Χ 0.25,PNH,TORX DRIVE .SPACER, POST : 0.966 L ,4-40 THD BOTH ENDS """"'(END ATTACHING PARTS)""""" . .EXTENSION SHAFT:0 .125 OD Χ 6.58 INCH LON . .CPLG SHAFT,RGD :0 .127 ID,PLASTIC . .BEARING,CAM SW :END,0 .6 DIA . .NUT,ΡLΑΙΝ, ΗΕΧ. :4-40 Χ 0.188 INCH,BRS .SPRING,FLAT : 0.7 Χ 0.125,CU BE GRN CLR ..SPRING,FLAT :RED COLORED . .ROLLER,DETENT : . .BEARING,CAM SW :CENTER,0 .6 DIA """"""(ATTACHING PARTS)"""""' . .RES .,VAR,NONWIR :2 .5M ΟΗΜ,20Ί . . ..........(END ATTACHING PARTS)""""' . .ACTUATOR,CAM SW :AC-GND-DC . .ACTUATOR,CAM SW :ATTENUATOR . .RETAINER,CONT :ABS GRAY """"""(ATTACHING PARTS)"""""' . .SCR,ASSEM WSHR :4-40 Χ 0.25,PNH,TORX DRIV """""(END ATTACHING PARTS)""""' . .SPACER,SLEEVE :0 .555 L Χ 0.13 ID .CONT ASSY,ELEC :8 CONTACTS . .CONT ASSY,ELEC :8 CONTACTS . .CONTACT,ΕLEC :0 .64 INCH LONG . .TERMINAL, ΡΙΝ:0.365 L Χ 0.025 ΡΗ BRZ GOLD

Mfr

Service

Code

Mfr P art

80009 80009

334-4251-00 337-2773-00

01536

OBD

80009 80009 80009

366-1480-02 384-1576-01 200-2735-00

80009 80009

377-0512-00 670-7611-00

22526 00779 80009

47357 3-380949-2 670-7612-00

22526 80009

48283-029 670-7560-00

22526 22526 80009 80009 80009

47357 48283-029 343-0088-00 672-1064-00 346-0196-00

01536 12327

OBD OBD

80009 80009

361-1191-00 337-3014-00

01536 93907

OBD OBD

80009

670-7561-00

01536 80009

OBD 129-0986-00

80009 80009 80009 73743 80009 80009 80009 80009

384-1056-00 376-0209-00 401-0370-00 12161-50 214-1126-01 214-1126-02 214-1752-00 401-0369-00

12697

381-CM39666

80009 80009 80009

105-0934-00 105-0935-00 343-1020-00

01536

OBD

80009 80009 80009 22526 22526

361-1193-00 131-1758-11 131-1758-12 47359 47357

Number

10- 7

R eplaceable

F ig . & In dex No . 3-43 -44 -45 -46 -47 -48 -49

10- 8

M echanical Parts-2235

Te ktronix P art No .

Serial/ Model No . E ff Dscont

Se rvice

Qty

1 2 3 4 5

N ame & Description

CΚΤ BOA RD ASSYMMI N G (S EE Α4 REPL) '*""""'(ATTAC H I NG PARTS)"""""' 211-0325-00 3 SC R ,ASS EM WS HR :4-40 Χ 0.25, PNH,TORX DRIVE """"'(EN D ATTACHI NG PARTS)"'"""' TERM I NA L, PI N :0 .365 L Χ 0.025 ΡΗ BR Z GO LD 131-0608-00 18 131-0787-00 4 -CONTACT,ELEC:0 .64 I NCH LONG 1 80009 337-2944-00 SHIELD,ELEC :SW B OA RDS,BOTfOM 210-0406-00 2 NU T, PLAI N, HEX. :4-40 Χ 0.188 I NCH,BR S 129-0906-00 2 S PACER , POST:0 .685 L W/4-40 ΙΝΤ & ΕΧΤ ΤΗ 670-7613-00

1

M fr Code

M fr Part Nu mber

80009

670-7613-00

01536

OBD

22526 22526

47357 47359 337-2944-00 12161-50 129-0906-00

73743 80009

REV ΜΑΥ 1983

4l R

5

Α3

Ο

Φ

Α2 τs

ύ as

Α4 α3

y ν

2235 S ERV IC E

Ρι

45

WE

F ig .

&

Index No.

Te ktron i x P art No,

Se ria l / M o d el No . Eff Dscont

Qty 1 2 3 4 5

Na m e & Descr iption

Mfr Ce d e

M fr Part Number

80009 Ι 642 Β

010-6122-01 ΚΗ 8352

80009 80009

070-4206-00 070-4207-00

80009 80009 80009 80009 80009 80009 71400

013-0191-00 020-0672-00 200-2520-00 016-0677-00 016-0535-01 386-4647-01 MD L 1

80009

016-0466-00

ST AND A R D A CC E SSO R IE S

-1

010-6122-01 161-0104-00 --"-- ----070-4206-00 070-4207-00

2 Σ 1 1

P RO B E,VOLTACE :P6122,1 .5 ΜΕΤΕΑ , ΙΟΧ W/ACCESS CABLE ASSY,PWR, :3 W I RE,98 .0" LONG (SEE FIG . 2 RM P L) M ANUAL,TECH :S£ RV ICE,2235 OSCILLOSCOPE MANUAL,TECH :OPE R ATORS,2235 OSCILLOSCO PE

OPTIONAL ACCESSOR IES -2 -3 -4 -5 -6

01 3 -0191-00 020-0672-00 200-2520-00 016--0677-00 016-0535-01 386-4647-01 159-0019-00 ----- --------- -------- --------- --016-0466-00 ----- -----

2 1 1 1 1 1 1 1 1 1 --

T IP,PROBE :W/ ΑCΤ UΑΤΟΑ

ACCESSORY ΚΙΤ : . CO VER,SCOPE :F RONT . P OUCH,ACCESSO RY : , . P OUCH,ACCESSORY : . , P LATE,MOUNTING :BAε K,ALUM . , F USE CAR T R IDGE :3AG,1A,250 V ,SLO-BLO C5C ΟΡΤΙΟΝ 4 CAME RA (SEE MANUAL 070-2824- ΧΧ ) 2000 OR 2000 SCOPEMOBILES (SEE DATA SHEETS Οό 2- Ι 538-00 O R 062-6644-00) ADAPTE R ,RACK : (SEE MANUAL 070-4186- ΧΧ )

2235 S

E RV IC E

M ANU AL

C H AN GE

I NF O RM ATIO N

At Tektronix, we continually strive to k eep up with latest electronic develo pments by adding circuit and component improvements to our instruments as soon as they are develo ped and tested . Sometimes, due to printing and s hipping requirements, we can't get these changes immediately into printed manuals. H ence, your manual may contain new change information on following pages . Α single change may affect several sections . Sincethe change information s heets are carried i n the manual until all changes are permanently entered, some d uplication may occur. If no such c hange pages appear following this page, your manual is correct as printed .

Tektronke cοπΜινΤΤεοΤοεχcευεηιcε

M A NU A L Date :

2-16-83

C H A N G E I NF O RM ATIO N Change

2213, 2215, 2235, 2236

Pr odu ct :

Manual

R eference :

Part No . : See Be low

D ESC RI PTI ON 2213

(070-3827-00)-Β029390

2215 (070-3826-00)-Β031640 2235 ( 070-4206-00)-ΒΟ 10380 2236 (070-4204-00)-Β 010550 REPLACEABLE ELECTRICAL PARTS LIST CHANGES 2213, 2215 CHANGE TO : Α 10Τ940

120-1348-01

XFMR,PWR,SDN&SU : HIGH VOLTAGE

120-1348-01

XFMR,PWR,SDN&SU : HIGH VOLTAGE

2235, 2236 CHANGE TO : Α 1 Τ 948

Page 1 0-2775-00D 00

of

1

Μ50226

Tektmnixa COMMITTED TO EXCELLENCE

Prod u ct :

MA NU AL CH A N G E I NF O RM ATIO N Date:

8-22-83

2235 SERV IC E

02/0883

Change R eference :

070-4206-00

Manual Part No . :

D ESC RIPTION

P G 46

TEXT C HANGES (EFFECTIVE ALL SERIAL NUMBERS) Page 5-5

ST EP 4

Adjust Astigmatism (R874) .

Change p art b. to read as follows: b. Co nnect the leveled si ne-wave generator outpu t via α 50- Ω ca ble an d α 50- Ω termi n ation to the CH 1 OR Χ in p ut conn ector. REPLAC EABLE ELECTRICAL PARTS LIST CHANGES (SEE BELOW FOR EFFECTIVE S ERIAL NUMBERS) CHANGE TO : Α 1C785 Α 1 R 122 Α1 R 172 Al R317 Al R318 Al R319 Al R322 Al R342 Α 1 R 343 Al R344 Al R347 Al R352 All R353

ADD:

Α1C500 Α1 R 354 Α1 R 500 A3 R201 A3 R401

A LL SN's

281-0214-00 315-0820-00 315-0820-00 321-0218-00 321-0193-00 321-0212-00 321-0238-00 321-0218-00 321-0193-00 321-0212-00 321-0238-00 321-0274-00 321-0274-00

CA P,VAR,C ER DI : 0.5-3 PF ,400 V RE S, FXD,C MP SN : 82 ΟΗΜ,5%,0.25W RE S, FXD,C MP S N : 82 ΟΗΜ ,5%,0.25W RE S, FXD,C MP SN : 1 .82Κ ΟΗΜ ,1%,0 .125 W RE S, FXD,C MP SN : 1 Κ ΟΗΜ,1%,0 .125W RE S, FXD,C MP SN : 1 .58Κ ΟΗΜ ,1%,0 .125 W RE S, FXD,C MP SN : 2.94Κ ΟΗΜ ,1%,0.125 W RE S, FXD,C MP SN : 1 .82Κ ΟΗΜ ,1%,0.125 W RE S, FXD,C MP SN : 1 Κ ΟΗΜ,1 %,0.125W RE S, FXD,C MP SN : 1 .58Κ ΟΗΜ ,1%,0.125 W RE S, F XD,C MP SN : 2.94Κ ΟΗΜ ,1%,0.125 W RE S, FXD,C MP SN : 6.98Κ ΟΗΜ ,1%,0.125 W RE S, FXD,C MP SN : 6.98Κ ΟΗΜ ,1%,0.125 W

PC9 PC16 PC16 PC16 PC16 PC16 P C16 P C16 PC16 PC16 PC16 PC16 PC16

A LL S N's

281-0893-00 315-0272-00 315-0101-00 315-0200-00 315-0200-00

CA P, FXD,C ER DI : 4.7 PF ,±0 .5 PF ,100 V RE S, FXD,C MP SN : 2.7 Κ ΟΗΜ,5%,0.25 W RE S, FXD,C MP SN : 100 ΟΗΜ,5%,0.25W RE S, FXD,C MP SN : 20 ΟΗΜ,5%,0.25W RE S, FXD,C MP SN : 20 ΟΗΜ ,5%,0.25W

PC11 PC16 P C11 P C13 PC10

Β010450 Β010450 Β010450 Β010450 Β010450 Β010450 Β010450 Β 010450 Β 010450 Β010450 Β 010450 Β010450

Β010450 ALL S N's A LL S N's A LL S N's

C HASSIS PARTS L IST CHANGES (SEE BELOW FOR EFFECΤ/VF_ SERIAL NUMBERS) ADD:

R 909

Β010395

315-0390-00

RE S, FXD,C MP SN : 39 ΟΗΜ ,5%,0.25W

PC17

DIAG RAM C HANG ES (SEE BELOW FOR EFFECTIVE S ERIAL NUMBERS) DIAG RAM

VERTICA L PREAMP A N D OUTPU T AMPL

Change R 122 (location 3E) and R 172 (location 9E) to 82 ohm resistors

8010450

PC16

Disconnect p i n 1 from ground on S200 (location 6 Α) and S226 (location 3 Κ). These two p ins are then connected together and R 201 (20Ω) is added from this connection to ground .

ALL SN 's

PC13

2235 SERV IC E

Product:

Date :

α-22-83

C hange R eference :

C210883

DE SC RIPTION

D IAGRAM C HANGES (coat) (SEE BEL OW FOR EFFECTIVE SERIA L NUM BERS) DIAG RAM

TRIGGER ING

Change R 352 (location 2Κ) a nd R353 (location 2Κ) to 6 .98Κ o hm resistors. Ch ange 8322 (location 3J) an d R347 (location 6J) to 2.94Κ o hm resistors. Change 8319 (location 2Η) and R344 (location 5J) to 1 .58Κ ohm resisto rs . Change R318 (location 1G) and R343 (location 3G) to 1 .ΟΚ o h m resistors. Ch a n ge R317 (location 1 F) and R342 (location 3F) to 1 .82Κ o hm resistors . Add R354 (2 .7 Κ ohm) from the ju nction of p ins θ a nd 14 of U350 (location approximately 3Κ) to -8 .6 V C1 .

B01 0450

PC16

B01 0450 B01 0450

PC16 PC16

B01 0450

B01 0450

PC16

PC16

8010450

PC16

Disconnect pin 4 from ground on S401 Β (location 8Α) an d add R401 (20 ohm) from p i n 4 to ground.

ALL SN 's

PC10

Add C500 (4 .7 pF) & R500 (100 Ω) to U 502 as shown b elow.

ALL SN 's

PC20

B01 0395

PC17

DIAG RAM

Α SWEEP GEN ERATOR & LOGIC

5.2 ν To ju nction of U506A pin 6 and U408 B pin 3.

U502

R500

10 Ε C G ME 713

100

δ Ε ΡΟβ g 1S

Q

3

ΗΙ SΡΕΕΟ

5.2 Υ --J

C500

4.7 ρF

DIAGRA M

POWER SU PPLY, Z-AXIS AND CRT

Add R 909 (39 oh m) at location 8Η as shown belo w. Ρ 9οτο

Π 8909 39 Ι

Q 9070

P age 00 1-0057-DOD

2 of 2

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