Tektronix 434 Instruction Manual
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Tektronix 434 Instruction Manual

Tektronix 434 Instruction Manual

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I I N J S X R U C T I O [ N J
IV 1 /X IN J U A L
434
OSCILLOSCOPE
scanned by matt from wellenkino.de
T e k t r o n i x , Inc.
•
P. O .
Box
5 0 0
•
B e a v e rto n ,
O r e g o n
9 7 0 0 5
•
Phone
6 4 4 - 0 1 6 1
•
C a b le s :
T e k tro n ix
070-1131-00
771

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  • Page 1 I I N J S X R U C T I O [ N J IV 1 /X IN J U A L OSCILLOSCOPE scanned by matt from wellenkino.de T e k t r o n i x , Inc. •...
  • Page 2 W A R R A N T Y A ll T e k tro n ix instrum ents are w arranted against defective m aterials and w orkm anship fo r one year. A n y questions w ith respect to the w a rra nty, m entioned above, should be taken up w ith yo u r T e k tro n ix Field Engineer or representative.

  • Page 3: Table Of Contents

    TA B LE OF C O N TEN TS SECTIO N 1 434 S P E C IF IC A TIO N Page SECTIO N 2 O P E R A T IN G IN S TR U C T IO N S (cont) Page...
  • Page 4 CONTENTS (cont) SEC TIO N 5 C A L IB R A T IO N Page SECTION 3 C IR C U IT D ESC R IPTIO N Page In tro d u c tio n In tro d u c tio n T e k tro n ix Field Service B lock Diagram Using This Procedure...

  • Page 5: A Bbreviations And Symbols

    CONTENTS (cont) SECTIO N 9 M E C H A N IC A L PARTS LIS T C HANG E IN F O R M A T IO N A bbreviations and symbols used in this manual are based on Mechanical Parts L ist In fo rm a tio n o r taken d ire c tly fro m IEEE Standard 260 "S tandard...
  • Page 6 F ig , 1 -1 . 4 3 4 O s c illo s c o p e .

  • Page 7: In Tro D U C Tio N

    R 434 also unless otherwise indicated. The R 434 is sweep rates fro m 5 seconds to 0.2 m icrosecond/division. A ele ctrica lly identical to the 434, b u t is adapted fo r m ounting push-to-turn direct-reading six-position m agnifier allows in a standard 19-inch rack.

  • Page 8: Ertical D E Flectio N System

    Specification— 434 T A B L E 1-1 E L E C T R IC A L C haracteristic Supplem ental In fo rm a tio n Performance R equirem ent V E R T IC A L D E F L E C T IO N SYSTEM...

  • Page 9: Triggering

    S p e cifica tio n —434 T A B L E 1-1 (cont) Characteristic Performance R equirem ent Supplem ental In fo rm a tio n In p u t RC Characteristics Resistance 1 megohm w ith in 2%.

  • Page 10: H Orizon Tal D Eflectio N System

    S p e cifica tio n —434 T A B L E 1-1 (cont) Supplem ental In fo rm a tio n C haracteristic Perform ance R equirem ent Trigger C oupling AC low -frequency reject H igh-frequency reject The co m b in a tio n o f high-frequency reject and AC low -frequency reject.
  • Page 11 S p e cifica tio n —434 T A B L E 1-1 (cont) Performance R equirem ent Characteristic Supplem ental In fo rm a tio n trace in the absence o f an adequate trigger signal. Single Sweep—Sweep Generator produces o n ly one sweep w hen triggered.

  • Page 12: C Alibrato R

    Specification—4-34 T A B L E 1-1 (cont) Performance R equirem ent Supplem ental In fo rm a tio n Characteristic C A L IB R A T O R O u tp u t Voltage (-s-20°C to +30°C ) A djustable 0.6 v o lt w ith in 0.25%,...

  • Page 13: Table 1-2 Environm Ental

    S p e cification—434 T A B L E 1-2 E N V IR O N M E N T A L Characteristic Perform ance R equirem ent S upplem ental In fo rm a tio n Tem perature Operating —15cC to +55°C...

  • Page 14: Table 1-3 Physical

    Specif ication—434 T A B L E 1-3 (cont) T A B L E 1-3 Performance R equirem ent C haracteristic P H Y S IC A L Overall Dimensions Characteristic Perform ance R equirem ent 5.6 inches. Height C onstruction W idth 13 inches including handle.

  • Page 15: O P E R A T In G In S Tr U C T Io N S

    Press in h e re o n b o th The 434 requires very little air c irc u la tio n fo r pro p e r sides o f th e in s tr u m e n t to p o s itio n h a n d le .

  • Page 16: C Ontrols And Connectors General

    Operating Instructions—434 F ig . 2-2. F ro n t- and rear-pane! c o n tro ls an d c o n n e c to rs . CO NTRO LS A N D CONNECTORS A S T IG m atism A djusts C RT beam fo r o p tim u m (Rear panel) display d e fin itio n .
  • Page 17 Operating In stru ctio n s—434 5 MHz BW A push-push sw itch th a t lim its the algebraic sum is displayed on the com plete vertical a m p lifie r system C RT. The IN V E R T sw itch in...
  • Page 18 Operating Instructions—434 C O U PLIN G (cont) if LF REJ and HF REJ are in MODE Determ ines the operating mode fo r o u t position. the sweep generator. LF REJ: Rejects DC and attenuates A U T O :...

  • Page 19: General Operating In Fo Rm A Tio N

    Graticule blanking signals. The graticule o f the 434 is in te rn a lly marked on the faceplate o f the CRT to provide accurate, no-parallax G E N E R A L O PER ATIN G IN F O R M A T IO N measurements.

  • Page 20: Beam Finder

    Operating Instructions— 434 1. Press the BEAM F IN D ER b u tto n . F irs t N in th d iv is io n . c e n te r d iv is io n v e rtic a l...

  • Page 21: Step A Tte N U A To R Balance

    In general, probes o ffe r the m ost c o n venient means o f connecting a signal to the in p u t o f the 434. T e k tro n ix probes are shielded to prevent p ic k u p o f e le c tro sta tic in te r­...

  • Page 22: Ground Considerations

    434 w ith o u t the need to exte rn a lly ground the in p u t connectors. The signal applied to the in p u t connector is in te rn a lly disconnected, b u t n o t grounded, and the in p u t c irc u it is held at ground p o te n tia l.

  • Page 23: Algebraic A D D Itio N

    T R IG G E R C O U P LIN G 1. D o n o t exceed the in p u t voltage rating o f the 434.

  • Page 24: Trigger Slope

    Operating Instructions—434 going p o rtio n o f the trigger signal. When the SLOPE sw itch rem aining T R IG G E R C O U P LIN G sw itch p o sitio n s w ill is in th e positive-going (+) p o s itio n , the d isp la y starts w ith provide a b e tte r display.
  • Page 25 O perating In s tru c tio n s —434 Waveforms obtained w ith the T R IG G E R L E V E L co n tro l set in the + region. Waveforms obtained w ith the T R IG G E R L E V E L co n tro l set in the —...

  • Page 26: H Orizontal Sweep Rates

    434 provides a c o m b in a tio n o f coarse and fin e adjustments tio n . T o avoid this, use the single-sweep feature o f the 434.

  • Page 27: C Alibrator

    PO SITIO N c o n tro l fo r a display w hich remains w ith in the The internal ca libra to r o f the 434 provides a convenient display area h o riz o n ta lly .

  • Page 28: Storage Operation

    Operating In stru ctio n s—434 A d ju s t th e 1 V O L T S /D IV switch n ot, repeat the dem onstration w ith the display in te n sity am plitude o f the external h o rizo n ta l signal to ob ta in a increased slightly.

  • Page 29: Fast Single-Sweep Enhancement

    The fo llo w in g in fo rm a tio n describes the procedures and techniques fo r m aking basic measurements w ith a 434 1. A p p ly a 30 kH z (350 kH z...

  • Page 30: Instantaneous Voltage Measurement-Dc

    Operating Instructions—434 N O T E E X A M P L E . Assume th a t peak-to-peak vertical d e fle c tio n is 4.6 divisions (see Fig. 2-7) w ith a V O L T S /D IV F o r lo w -fre q u e n c y signals b e lo w a b o u t 100 h e rtz , use sw itch setting o f .5 V.

  • Page 31: Comparison Measurements

    O perating In s tru c tio n s —4 34 Measure the distance in divisions betw een the re fe r­ Com parison Measurements ence line and th e p o in t on the w aveform at w h ich the DC In some app lica tio n s i t m ay be desirable to establish level is to be measured.
  • Page 32 Operating Instructions— 434 any setting o f the T IM E /D IV sw itch, the re p e titio n rate o f 5. T o measure the am plitude o f an unknow n signal, dis­ connect the reference signal and connect the u n kn o w n the reference signal m ust be know n.

  • Page 33: T Im E D Ura Tion Measurements

    O perating In s tru c tio n s —4 34 T im e D u ra tio n Measurements 9. M u ltip ly the distance measured in step 8 by the setting o f the T IM E /D IV sw itch. T o measure tim e betw een tw o p o in ts on a w a ve fo rm , use the fo llo w in g procedure: E X A M P L E .

  • Page 34: Tim E D Ifference Measurements

    Operating Instructions—434 Set the V O L T S /D IV sw itch and V a riable c o n tro l to S u b s titu tin g the given values: produce a display ex a c tly six d ivisions in a m p litu d e .

  • Page 35: M Ulti-T Race Phase D Ifference Measurements

    O perating In s tru c tio n s —4 34 4 3 4. T his m ethod o f phase d iffe re n ce m easurem ent can be A d ju s t the h o riz o n ta l P O S IT IO N c o n tro l so the used up to the fre q u e n c y lim it o f the vertical system .

  • Page 36: High R Esolution Phase Measurements

    Phase D iffe re n ce 0.6 X 45° C om m on-M ode R ejection The A D D feature o f the 434 can be used to display T he phase d iffe re n c e is 2 7 °. signals...
  • Page 37 O perating In s tru c tio n s —4 34 Set b o th In p u t C o u p lin g sw itches to DC (A C if DC 7. A d ju s t th e Channel V O L T S /D IV sw itch...

  • Page 38: C Ir C U It D Esc R Iptio Nsec Tio N

    The operating mode o f the Sweep Generator c irc u it is o f the 434 is shown in Fig. 3-1. O n ly the basic in te r­ co n tro lle d by the sweep M O DE sw itch. In the A U T O mode...
  • Page 39 N> STORAGE Enhance Pulse CIRCUIT < $ > CH 1 Input > CH 1 VER T V ER TIC AL INPUT AMP OUTPUT -► & PREAMP Channel SWITCH - > < > > < j> < > Chop Blanking -------- •n A lt t E ‘...

  • Page 40: C Irc U It O Peration

    Channel 1 signal o n ly . tric a l o p e ra tio n and re la tio n sh ip o f the c irc u its in the 434.
  • Page 41 F ig. 3-3. C hannel 2 In p u t A m p and Pream p d e ta ile d b lo ck diagram .

  • Page 42: Channel 2 In P U T A M P And Preamp

    C irc u it D e scrip tio n—434 relatively constant c u rre n t source fo r Q 1 2 4 A . and also C irc u it is changed to decrease the d e fle ctio n fa c to r (see...

  • Page 43: Channel Switch

    Circuit Description— 434 stage does n o t make available a sample o f the Channel 2 CH 1. In the CH 1 mode o f operation, —15 volts is signal fo r triggering use. A lso, IN V E R T switch S414 has applied to the ju n c tio n o f C R411-CR412 in the Channel 2 been added in the Channel 2 c irc u it.
  • Page 44 C irc u it D escrip tio n — C hannel 1 D io d e G ate V e rtic a l signal to D e la y -L in e D riv e r Stage C U R R E N T P A T H R E V E R S E -B IA S E D D IO D E S Fig.
  • Page 45 C irc u it D e s c rip tio n —4 3 4 C h a n n e l 1 D io d e G a te V e r tic a l sig n a l t o D e la y - L in e D r iv e r S tage C U R R E N T P A T H...

  • Page 46: E Rtical O U Tp U T A M P Lifie R

    C irc u it D escription—434 a bout a 100 kHz rate. The em itters o f Q 420 and Q 425 are A D D . In the A D D mode o f operation, the Diode Gate connected to —15 volts through R 428, R426, the prim ary stage allows both signals to pass to the D elay-Line Driver o f T 4 3 5 , and R438.

  • Page 47: Trigger P Ic K O Ff A Nd Generator

    Circuit Description—434 Generator c ircu its tim e to in itia te a sweep before the this c irc u it to select trigger level, slope, coupling, and source. Fig. 3-8 shows a detailed b lock diagram o f the vertical signal reaches the vertical d e fle ctio n plates o f the C RT.
  • Page 48 C irc u it D escrip tio n —434 F ig . 3 -8 . T r ig g e r P ic k o f f a n d G e n e r a to r d e ta ile d b lo c k d ia g ra m .
  • Page 49 C irc u it D escription—434 Trigger T D , the sweep is triggered on the positive-going adjustm ent R 629. The Trigger Level Centering adjustm ent sets the level at the base o f U 650E so the display is slope o f the in p u t trigger signal.

  • Page 50: Sweep Generator

    C irc u it D escription—434 Fig. 3 -10. T rig g e r signal pa th fo r negative-slope trig g e rin g (s im p lifie d T rig g e r G e n e ra to r d ia g ra m ).
  • Page 51 ©...
  • Page 52 C irc u it D escriptio n—434 the base o f U 76 0A through R700 and C R710. U 7 60A is curre nt through R 742, R796, R 794, R 692, and R690. turned on and its c o lle c to r goes negative. This negative...

  • Page 53: H Orizo Nta L A M P Lifie R

    Circuit Description—434 positive, w hich forw ard biases C R660 allow ing Q660 to Gating Tunnel Diode C R678 to accept the n e xt trigger c o n d u c t. Q 660 conducts cu rre nt through R646, pulse.
  • Page 54 T IM E /D IV S 7 0 0 A E x te rn a l —i...
  • Page 55 C871...

  • Page 56: Power S Upply P Rim Ary

    Circuit Description—434 am plifiers Q 874-Q 877 and Q884-Q887 respectively. The stage. The adjustm ent o f R817 determines overall h o ri­ o u tp u t signal fro m com plem entary a m p lifie r Q874-Q877 zontal a m p lifie r gain.
  • Page 57 T i l 15 To Power Supply Secondary Circuits...
  • Page 58 Circuit Description—434 a b o u t 0.6 v o lt m ore p ositive than the level at the gate o f S ta rt C irc u it Q 10 5 0 , Q 1 0 5 0 w ill tu rn on and sta rt to c o n d u c t c u rre n t to...

  • Page 59: Power S Upply Secondary

    C irc u it D e s c rip tio n —434 Q 1 0 9 1 , and Q 1094 and th e ir associated c irc u itry make up a th e p rim a ry w in d in g o f T 1 1 5 0 . T 1 1 5 0 couples a negative- dam per c irc u it designed to suppress th is ringing.
  • Page 60 N> +15 V Regulation Signal to Negative High Voltage *■? R80 Power Supply - 1 5 V Intensity Limiting fr o m TIM E /D IV switch Negative 25 kHz High from Voltage Power Supply...
  • Page 61 C irc u it D e scrip tio n—434 signals present at the a m p lifie r inputs in to cu rre n t varia­ tu rn varies the am plitude o f the voltage swing on the tions to...

  • Page 62: C Alibrator

    Q 9 10 to the e m itte r o f Q 905 b y C 906. T h is p ositive m ove­ The C R T used in th e 434 is a d ire c t-v ie w storage cathode...
  • Page 63 ERASE 1 S90A Erase Divider M u ltiv ib ra to r N etw ork Q 1210 Q 1216 R 1229 Cl 200 STORE S90B OFF Q 6 ON EN H A N C E S90C Enhance M u ltiv ib ra to r Enhance Trigger EN HAN C E Q 1245 Q 1246...
  • Page 64 W ritin g has been accom plished and th is segment o f the Fig. 3-17 illustrates the basic c o n s tru c tio n o f the 434 target is n o w stored.
  • Page 65 T w o low-energy electron guns, or flo o d guns, are used in the 434. The cathodes are returned to —75 volts through IN T E G R A T E switch S94 and R94. R 1298 and VR 1298 set the level o f the flood-gun co n tro l grid at a p p ro xim ately + 140 volts.
  • Page 66 Circuit Description— 434 Erase Generator tia l. C1219 charges, voltage the ju n c tio n o f R 1220-R 1222 decays at an R C -controlled rate u n til N O T E CR1220 tu rn s on and clamps it at about —15.5 volts. This...
  • Page 67 Circuit Description— 434 1 integrate s im ila r to th a t described fo r the Erase M u ltiv ib ra to r. When e ith e r E N H A N C E sw itch (S90C o r S92C) is pushed in, Q 1 245 has a c o n d u c tio n path to ground th ro u g h R 1245.

  • Page 68: In Tro D U C Tio N

    434. C abinet Removal Dangerous p o te n tia ls e x is t a t several p o in ts th ro u g h ­...

  • Page 69: L U Brica Tio N

    434 can be rem oved w ith a s o ft c lo th o r small p a in t brush. cam sw itc h . The c o rre c t lu b ric a n t fo r the detents and...
  • Page 70 Maintenance—434 Circuit Boards. Figs. 8-1 th ro u g h 8-23 in th e D iagram s Resistor Color-Code. In a d d itio n to th e b ro w n c o m ­ section show th e c ir c u it boards used in th e 4 3 4 . Fig. 4-5...

  • Page 71: Troubleshooting Equipm Ent

    Maintenance— 434 o f the T e k tro n ix Part N um ber using the resistor color-code 1. Transistor Tester system (e.g., a diode color-coded p in k or blue-brown-gray- green indicates T e k tro n ix Part N um ber 152-0185-00). The...
  • Page 72 M a in te n a n c e —4 3 4 Typical Dual |______ ___________ Plastic-Cased Transistor Transistor Transistors Programmable I----------------- Power I---------------- Dual F E T ---------------- 1 U nijunction ---------------' Transistor Transistor Fig. 4-4. Electrode configuration fo r semiconductors used in this instrum ent. 4 -5...
  • Page 73 M aintenance—434 A 1 5 A 1 6 Upper Storage Lower Storage Switch Board Switch Board Trigger Source Switch Board Trigger Coupling Switch Board H o rizontal Board A 1 4 A 1 0 Z-Axis Power Supply Board Secondary Board...
  • Page 74 Table 4-2 lists the tolerances o f the p ow er supplies in th is nents in the 434. C om ponents w h ich are soldered in place in stru m e n t. If a pow e r-su p p ly voltage is w ith in the listed are best checked b y disconnecting one end.

  • Page 75: C Orrective Maintenance

    See the E lectrical Parts L is t fo r the tolerance o f the resis­ com p o ne n ts, some special com ponents are used in the 434. tors used in this in s tru m e n t. Resistors n o rm a lly do n o t need These com ponents are m a n ufa ctu re d o r selected by T e k ­...

  • Page 76: C Om Ponent Replacement

    Maintenance—434 M e ta l Terminals. When soldering metal term inals, C irc u it Boards. Use o rd in a ry 6 0 /4 0 solder and a 35- to 4 0 -w a tt pencil ty p e soldering iro n on the c irc u it boards.
  • Page 77 Ma i nten ance—434 T o replace the b oard, reverse the order o f rem oval. A . R E M O V A L : C o rre ct lo ca tio n o f th e pin co nnectors is show n in Figs. 8-1...

  • Page 78: R Ecalibration A Fte R Repair

    Mechanical Parts Illu s tra tio n s shows h ow to ing procedure: repackage the 434 and gives the p a rt num bers fo r the repackaging com ponents. New shipping cartons can be Remove the w rap-around ca b in et fro m the in s tru ­...

  • Page 79: M Aintenance Section

    434. S p e cifica tio n s given fo r the test e q u ip m e n t are the M aintenance section.

  • Page 80: Test E Q U Ip M En T

    Calibration—434 TEST EQ U IP M E N T M inim um S pecifications D escription Usage Example Capable o f supplying 66 volt- Power S upply adjustm ent. General Radio W 10M T3W 1. A u to tra n sfo rm e r...
  • Page 81 Calibration—434 TEST EQ U IP M E N T (cont) Minimum Specifications Usage Example Description M axim um C urrent, 5 A RMS. Power Supply checks a. T e k tro n ix P6021 AC C u r­ 10. C urrent Probe rent Probe w ith 011-0105-00 adjustments.

  • Page 82: Index To C Alibration Procedure

    C a lib ra tio n —4 3 4 IN D E X TO C A L IB R A T IO N 24. A d ju s t Channel 2 V O L T S /D IV Sw itch Page 5-17 P R O C E D U R E Com pensation...

  • Page 83: P Relim Inary Procedure Fo R

    T R IG G E R SOURCE COMP 3. Connect the 434 to the a utotransform er o u tp u t. T R IG G E R C O U PLIN G T R IG G E R L E V E L...

  • Page 84: Power S Upply A Nd Display

    434 under test replaced th a t w o u ld cause the setting o f R 1074 to be...

  • Page 85: A D Ju S T -1 5 -V O Lt Power S Upply

    A D J U S T — —15 V o lts adjustm ent R1122 (see Fig. 5-4) fo r a m eter reading o f —15 volts, ±0.037 v o lt. d. Disconnect the Precision DC V o ltm e te r fro m the 434 under test.

  • Page 86: A Djust High-Voltage Power Supply

    Calibration—434 IN T E R A C T IO N —May a ffect vertical gain, horizontal b. C H E C K —Test oscilloscope display fo r 40 m ic ro ­ tim in g accuracy and C RT focus, astigmatism and geom etry.

  • Page 87: A Djust Focus Range And Astigm Atism

    Calibration— 434 k. A D JU S T — C953 (see Fig. 5-5) fo r o p tim u m w aveform a. Set the Sweep MODE to S IN G LE SWEEP. risetim e and fla t to p.

  • Page 88: A D Ju S T Upper And Low Er Store Levels

    Calibration—434 7 S K T 3 Q N 0 L ? V' p M l H W |-__ A ll ftig h ? s ftf'> G e o m e try B 1 2 9 2 PwHIB B B6 SSeM...

  • Page 89: A Djust C Ollim Ation

    C a lib ra tio n —434 A d ju s t the A S T IG M A T IS M adjustm ent fo r a w ell- Repeat this procedure u n til trace spreading or defined trace.

  • Page 90: A Djust G Eom Etry

    Calibration—434 b. C onnect the o u tp u t o f a Tim e-M ark Generator to the p. A d ju st the IN T E N S IT Y co n tro l u n til the spot is just CH 1 in p u t connector via a 42-inch 50 !T 2 BNC cable.

  • Page 91: Check External Z A Xis Operation

    C a lib ra tio n —434 i. D isconnect all test equipm ent. c. C H E C K —Should no t be able to position the free- running trace o u t o f the graticule area when holding the BEAM F IN D E R b u tto n in.

  • Page 92: Ertical System A D Ju Stm E N T

    C alib ra tio n —434 V E R T IC A L SYSTEM A D JU S TM E N T Equipm ent Required 7. A dapter (G R 874 and BNC female connectors) 1. Standard A m p litu d e C alibrator 8.

  • Page 93: A Djust Ch 1 And Ch 2 G A In

    C alib ra tio n —434 e. Set the CH 2 V O L T S /D IV sw itch to 10 m V . f. Change V ertical Mode to CH 1. f. Rotate the CH 2 Variable V O L T S /D IV c o n tro l.

  • Page 94: Check A D D Mode Operation

    Calibration—434 Check CH 2 Variable V O L T S /D IV Range and A d ju s t the o u tp u t o f the Square-Wave Generator fo r a display five divisions in am plitude and a re p e titio n rate o f A tte n u a to r Accuracy one kilo h e rtz.

  • Page 95: A D Ju S T Channel 2 V O L T S /D Iv Sw Itch

    C a lib ra tio n —434 F ig . 5 -8 . L o c a tio n o f C H 1 & C H 2 V O L T S / D I V s w itc h c o m p e n s a tio n a d ju s tm e n ts .
  • Page 96 Calibration—434 V e rtic a lly center the display in the CRT viewing area N O T E w ith the CH 1 POSITION c o n tro l. The tolerances given in steps i, o, t, and w a p p ly o n ly in the tem perature range o f + 2 0 °C to + 3 0 °C.

  • Page 97: Check V Ertical A M P Lifie R Bandwidth

    Calibration—434 n. Position the to p o f the display to the b o tto m g ra ti­ Refer to Table 5-3. Use the 10X BNC a ttenuator as neces­ cule line. sary to m aintain a six-division display am plitude.

  • Page 98: Check 5 Mhz Bw Bandwidth

    Calibration— 434 b. Set the CH 1 V O L T S /D IV switch to 10 m V and the TABLE 5-4 Vertical Mode to CH 1. Vertical Amplifier Bandwidth c. Set the 5 MHz BW bu tton to the o u t position.

  • Page 99: Trigger C Irc U It A D Ju Stm E N T

    Calibration—434 TR IG G ER C IR C U IT A D JU S TM E N T E quipm ent Required 4. BNC T C onnector M ed i u m -F re q u e n c y...

  • Page 100: Level

    Calibration—434 (42-inch 50 12 BNC cable should be connected d ire c tly to d. Set the T R IG G E R SOURCE to CH 1. the E X T TR IG in p u t connector). e. C H E C K —C R T fo r a stable display.

  • Page 101: Check T R Ig G E R L E V E L C O N Tro L

    Calibration—434 C H E C K —R otate T R IG G E R L E V E L co n tro l h. Press the RESET b u tto n . th ro u g h o u t its range and check th a t the display can be triggered (stable display) at any p o in t along the slope o f the i.

  • Page 102: H O Rizontal System C Alibration

    Calibration—434 H O R IZ O N T A L SYSTEM C A L IB R A T IO N E quipm ent Required 1. Test Oscilloscope 4. 42-Inch 50 £2 BNC Cable 2. Tim e-M ark Generator 5. 3-Inch Screwdriver 3.

  • Page 103: A D Ju S T H O Rizo N Ta L Gain

    Calibration—434 N O T E e. C H E C K —M iddle tim e m ark should rem ain aligned w ith the center vertical graticule line w ith in a p p ro x im a te ly I f the T e k tro n ix Type 184 T im e-M ark G e nerator is one divisio n .

  • Page 104: Check T Im E /D Iv Accuracy

    Calibration—434 A D JU S T —C871 and C881 (see Fig. 5-12) fo r best sion (0.5 division if this measurement is being made outside tim in g lin e a rity excluding the firs t and last tw o o f the +20°...

  • Page 105: C A Lib Ra To R C Irc U It A D Ju Stm E N T

    Calibration—434 C A L IB R A T O R C IR C U IT A D JU S TM E N T E quipm ent Required 1. Precision DC V o ltm e te r 3. 42-Inch 50 Q. BNC Cable 2.
  • Page 106 C O U PLING to A C , and the T IM E /D IV to .2 ms. A d ju s t the This com pletes the c a lib ra tio n procedure fo r the 434 T R IG G E R L E V E L co n tro l fo r a stable display and adjust Oscilloscope.

  • Page 107: R A C K M O U N T In G

    Change in fo rm a tio n , i f any, a ffe c tin g this section w ill be fo u n d a t the rear o f this m anual. In tro d u c tio n The T e k tro n ix R 434 O scilloscope is designed to m o u n t in a standard 19-inch rack. W hen m ounted in accordance...

  • Page 108: Portable Conversion

    Rackmounting—434 F ig . 6 -2 . H a rd w a re n e e d e d t o m o u n t th e in s tr u m e n t in th e c a b in e t ra c k .
  • Page 109 Fig. 6-4. Installing the rear bracket extensions. Remove a p lastic plug fro m the fr o n t panel o f the R 434. M o u n t a BNC th ru -c o n n e c to r in the hole in th e f r o n t panel (see Fig.
  • Page 110 Rackmounting— 434 <r- i« C V J C V J < r Fig. 6-6. D im e n s io n a l d ra w in g .

  • Page 111: E L E C T R Ic A L Parts Lis T

    PARTS LIST ABBREVIATIONS b ind ing head brass internal length or long b ind ing head steel met. m etal cap. c ap acito r mfg hdw m ounting hardw are ceramic outside diam eter comp com position oval head brass conn connector oval head steel...

  • Page 112: Parts Ordering In Fo Rm A Tio N

    PARTS ORDERING IN F O R M A T IO N Replacem ent parts are a v c iia b le fro m o r th ro u g h yo u r local T ektron ix, Inc. Field O ffic e or representative. C hanges to T ektron ix instrum ents are sometimes m ade to a cco m m od ate im p ro ve d com ponents as th e y becom e a v a ila b le , and to give you the b e n e fit o f the latest circu it im provem ents d e v e lo p e d in our en g in e e rin g de p a rtm e n t.

  • Page 113: Electrical Parts List

    4 3 4 /R 4 3 4 SECTION 7 ELECTRICAL PARTS LIST CHASSIS Values are fixed unless marked Variable. Tektronix Serial/Model No. _____ Part No. Disc________________________ Description Ckt. No. Capacitors Tolerance rfc20% unless otherwise indicated. 283-0023-00 10 V 283-0023-00 10 V...
  • Page 114 Electrical Parts list— 4 3 4 / R434 CHASSIS (cont) Tektronix Serial/Model No. Ckt. No. Part No. Disc Description Inductors LI 00 *108-0657-00 Beam rotator L533 *114-0309-00 9.6-18.7 /nH, Var Core 276-0511-00 L584 *114-0309-00 9.6-18.7 / H, Var Core 276-0511-00 0.17/tH (wound on a 36 0 , 1/8 W, 5% resistor)
  • Page 115 Electrical Parts List— 4 3 4 /R 4 3 4 CHASSIS (cont) Tektronix Serial/Model No. Ckt. No.____________Part No. Eff_____________ Disc_______________________ Description Switches Wired or Unwired 260-0735-00 Push BEAM FINDER S60’ SLOPE 260-1229-00 Pushbutton MODE 260-0735-00 Push RESET 260-1285-00 INTEGRATE Push...
  • Page 116 Electrical Parts List— 4 3 4 /R 4 3 4 INPUT AMPLIFIER Circuit Board Assembly (cont) Tektronix Serial/Model No. Ckt. No. Part No. Eff_____________ Disc Description Semiconductor Device, Diodes CR122 *152-0321 -00 Silicon Tek Spec CR172 *152-0321-00 Tek Spec Silicon...
  • Page 117 Electrical Parts List— 4 3 4 /R 4 3 4 VERTICAL Circuit Board Assembly (cont) Tektronix Serial/Model No. Description Ckt. No. Part No. Disc (cont) Capacitors C223 281 -0092-00 9-35 pF, Var C224 281 -0579-00 21 pF 500 V C225...
  • Page 118 Electrical Parts List— 434/R434 VERTICAL Circuit Board Assembly (cont) T e k tr o n ix S e r ia l/ M o d e l N o . D e s c rip tio n C k t. N o .
  • Page 119 Electrical Parts List— 4 3 4 /R 4 3 4 VERTICAL Circuit Board Assembly (cont) Tektronix Serial/Model No. Ckt. No. Description Part No. Disc Semiconductor Device, Diodes (cont) CR433 Replaceable by 1N4152 *152-0185-00 Silicon CR440 Silicon Replaceable by 1N4152 *152-0185-00...
  • Page 120 Electrical Parts List— 4 3 4 /R 4 3 4 VERTICAL Circuit Board Assembly (cont) T ektronix S e ria l/M o d e l N o. Description Ckt. No. Part No. Disc Resistors (c o n t) io kn 'A W R214 316-0103-00...
  • Page 121 Electrical Parts List— 4 3 4 /R 4 3 4 VERTICAL Circuit Board Assembly (cont) Tektronix Serial/Model No. Description Ckt. No. Part No. Disc (cont) Resistors R282 316-0152-00 'A W 1.5 k n '/8 W R283 321-0256-00 4.53 kn Prec...
  • Page 122 Electrical Part* List— 434/R 4 3 4 VERTICAL Circuit Board Assembly (cortt) Tektronix Serial/Model No. Ckt. No.___________ Part No. Eff_____________ Disc_______________________Description Resistors (cont) R354 316-0152-00 1.5 k n ’A W 3 1 6 -0101-00 i o o n R355 Prec...
  • Page 123 Electrical Parts List— 4 3 4 /R 4 3 4 (cont) VERTICAL C ircuit B oard A ssem bly Tektronix Serial/Model No. Description Part No. Ckt. No. Disc (cont) Resistors Prec 499 0 R457 321 -0164-00 Vs w Prec 80.6...
  • Page 124 Electrical Parts List— 4 3 4 /R 4 3 4 VERTICAL Circuit Board Assembly (cont) Tektronix Serial/Model No. Ckt. No.____________Part No. Eff_____________ Disc__________________ Description Switches Wired or Unwired S414 260-1236-00 Push-push OUT-INVERT S479 260-1236-00 Push-push OUT 5 MHz BW Transformer...
  • Page 125 Electrical Parts List— 4 3 4 /R 4 3 4 (cont) VERTICAL M O D E SW ITCH Circuit Board Assembly T e k tro n ix S e ria l/M o d e l N o . C k t. N o .______________P art N o . E ff________________Disc___________________________ D e s c rip tio n Switches W ire d or U nw ired...
  • Page 126 Electrical Parts List— 4 3 4 /R 4 3 4 CAM SWITCH ASSEMBLY CH2 Tektronix Serial/Model No. Ckt. No. Part No. Disc Description Capacitors Tolerance ±2 0 % unless otherwise indicated. *307-1010-00 2X Hybrid Cl 06 2X Hybrid Cl 07...
  • Page 127 E le ctrica l Parts List— 4 3 4 /R 4 3 4 TRIGGER SOURCE SWITCH Circuit Board Assembly (cont) T e k tro n ix S e r ia l/M o d e l N o . C k t. N o .______________ P a rt N o . E ff________________ D isc____________________________ D e s c rip tio n Switches W ire d o r U nw ire d...
  • Page 128 Electrical Parts List— 4 3 4 /R 4 3 4 H O R IZO N TA L Circuit Board Assembly (cont) Tektronix S erial/M odel No. Description Ckt. No. Part No. Disc (cont) Capacitors 283-0081-00 0.1 fiF 25 V + 8 0 % —20%...
  • Page 129 Electrical Parts List— 4 3 4 /R 4 3 4 H O R IZ O N T A L C irc u it B o a rd A ss em b ly (cont) T e k tro n ix S e r i a l / M o d e l N o .
  • Page 130 Electrical Parts List— 4 3 4 /R 4 3 4 HORIZONTAL Circuit Board Assembly (cont) T e k tro n ix S e r i a l / M o d e l N o . C k t. N o . P a rt N o .
  • Page 131 Electrical Parts List— 4 3 4 /R 4 3 4 (cont) H O R IZ O N T A L C ircuit B oard A ssem bly T e k tro n ix S e r ia l/M o d e l N o . P a rt N o .
  • Page 132 Electrical Parts List— 4 3 4 /R 4 3 4 H O R IZ O N T A L C irc u it B o a rd A s s e m b ly (cont) T e k tro n ix S e r i a l / M o d e l N o .
  • Page 133 Electrical Parts List— 4 3 4 /R 4 3 4 H O R IZ O N T A L C ircu it B o a rd A s s e m b ly (cont) T e k tro n ix S e r i a l / M o d e l N o .
  • Page 134 Electrical Parts List— 4 3 4 /R434 HORIZONTAL Circuit Board Assembly (cont) T e k tro n ix S e r ia l/ M o d e l N o . P a rt N o . E ff D isc ______ D e s c rip tio n C k t.
  • Page 135 Electrical Parts List— 4 3 4 /R 4 3 4 HORIZONTAL Circuit Board Assembly (c o n t) T e k tro n ix S e r i a l / M o d e l N o . E ff Disc D e s c rip tio n P a rt N o .
  • Page 136 Electrical Parts List— 4 3 4 /R 4 3 4 PRIMARY POWER SUPPLY Circuit Board Assembly Tektronix Serial/Model No. C k t. N o .______________ P art N o . Eff________________ Disc____________________________ Description *6 7 0 -1 3 5 0 -0 0...
  • Page 137 Electrical Parts List— 4 3 4 /R 4 3 4 (cont) P R IM A R Y P O W E R SUPPLY C irc u it B o ard A s s e m b ly T e ktro n ix S e ria l/M o d e l N o.
  • Page 138 Electrical Parts List— 4 3 4 /R 4 3 4 PRIMARY POWER SUPPLY Circuit Boatd Assembly (cont) T ektro n ix S e ria l/M o d e l N o. C kt. N o. Part N o. Disc D escription Resistors (c o n t) ’A W R1040...
  • Page 139 Electrical Parts List— 4 3 4 /R 4 3 4 A 1 0 SECONDARY POWER SUPPLY Circuit Board Assembly T e k tro n ix S e r ia l/M o d e l N o . C kt. N o .______________ P art N o . Eff________________ Disc____________________________ D escrip tio n *6 7 0 -1 3 4 9 -0 3 Com plete Board...
  • Page 140 Electrical Parts List— 4 34/R 434 A lO SECONDARY POWER SUPPLY Circuit Board Assembly (cont) T e ktro n ix S e ria l/M o d e l N o. C kt. N o . Part N o . Eff_______________ Disc__________________________ D escription______ Resistors fixed, composition, ±...
  • Page 141 Electrical Parts List— 4 3 4 /R 4 3 4 TRANSFORMER Assembly (cont) T e ktro n ix S e ria l/M o d e l N o. Part N o. E ff Disc D escription C kt. N o. Capacitors Tolerance ±...
  • Page 142 Electrical Parts List— 4 3 4 /R 4 3 4 A 13 LINE FILTER Assembly Tektronix Serial/Model No. Ckt. No.____________Part No. Disc Description *1 1 9-02 9 5-00 Com plete Line Filter Assembly Capacitors Tolerance ± 2 0 % unless otherwise indicated.
  • Page 143 Electrical Parts List— 4 3 4 /R 4 3 4 A 1 4 Z A X IS C ircu it B o ard A ss em b ly (cont) T e ktro n ix S e ria l/M o d e l N o. D escription Part N o.
  • Page 144 Electrical Parts List— 4 3 4 /R 4 3 4 A 1 4 Z A X IS C irc u it B o a rd A s s e m b ly (cont) T e ktro n ix S e ria l/M o d e l N o . C kt.
  • Page 145 Electrical Parts List— 4 3 4 /R 4 3 4 A 1 4 Z A X IS C irc u it B o ard A s s e m b ly (cont) T e ktro n ix S e ria l/M o d e l N o. C kt.
  • Page 146 Electrical Parts List— 4 3 4 /R 4 3 4 A 1 4 Z AXIS Circuit Board Assembly (cont) Tektronix Serial/Model No. Ckt. No._____ ______ Part No. Eff_____________ Disc_______________________ Description Transformer T920 *120-0721-00 Pot core Integrated Circuit U940 *155-0051-00 Monolithic, Z-axis & HV regulator...
  • Page 147 Electrical Parts List— 4 3 4 /R 4 3 4 A 1 7 STORAGE Circuit Board Assembly (cont) Tektronix Serial/Model No. Part No. Eff_____________ Disc_______________________ Description_____________________ Ckt. N o . C a p a c ito rs (c o n t) Elect.
  • Page 148 Electrical Parts List— 4 3 4 /R 4 3 4 (cont) A 1 7 S T O R A G E C ircu it B o ard A s s e m b ly Tektronix Serial/M odel No. Part No. Disc Description Ckt.
  • Page 149 Electrical Parts List— 4 3 4 /R 4 3 4 A 1 7 STORAGE Circuit Board Assembly (cont) Tektronix Serial/Modet No. Part No. Eff______________Disc________________________ Description Ckt. No. (cont) Resistors R1245 316-0103-00 10kn 'A w ’A W R1250 316-0106-00 i o m d ’A W...

  • Page 150: Sym Bols And Reference Designators

    4 3 4 S E C T IO N 8 D IA G R A M S , CIRCUIT B OARDS, M E C H A N IC A L A N D REPACKAGING PARTS IL LU S TR A TIO N S Sym bols and Reference Designators E le c tric a l c o m p o n e n ts sh o w n o n th e d ia g ra m s are in th e fo llo w in g u n its unless n o te d o th e rw is e : C a p a c ito rs =...

  • Page 151: Oltage And Waveform Test

    SOURCE Probe ground 434 chassis ground. EXT ATTEN Trigger source External to indicate true time rela­ COUPLING tionship between signals. Tektronix 7504 with 7A16 plug-in Sweep Controls Recommended type unit and P6052 Probe. MODE AUTO TIME/DIV 1 ms Voltm eter Type Digital multimeter.
  • Page 152 < §> < $> C H A N N E L 2. cR^'O R V *M GT500 Q3CoS C P-4 I I Q-SOl VJ3\0 O R * VERTICAL CR * H OUTPUT □ SLAV a m p l if ie r DIODE d e l a y l i n e...
  • Page 154 P /O A 2 VERT CIRCUIT BOARD © © © © © © - PRE-AMP GAIN - rE N U A T O R - [ CH I VOL. — £./ D lV | - P /O A 4 CAM SW ITC H <i>...
  • Page 155 See Figs. 8-1 and 8-8 fo r lo c a tio n o f c om ponents n o t id e n tifie d here. Fig. 8-4. P/O A 3 . Partial V e rtic a l M ode S w itch c irc u it board. See Fig 8-2 f o r lo c a tio n o f com p on en ts n o t id e n tifie d here.
  • Page 156 See Figs. 8-3, 8-7, 8-9, and 8 -1 0 f o r loc a tion o f com ponents n o t id e n tifie d here. Fig. 8-6. P/O A 2 . P artial V e rtica l c irc u it board.
  • Page 157 S20O P / O A 5 CAM SW1T C .H C .H -2. 4 3 ^ ® CH Z INPUT A M P L IF IE R £ P R E -A M P <(^>...
  • Page 158 See Figs. 8-3, 8-6, 8-9, and 8-10 f o r lo ca tion o f com ponents n o t id e ntifie d here. Fig. 8-7. P/O A 2. Partial Ve rtica l c irc u it board.
  • Page 159 5 C (O ji i V S O O ^ s © < s > 5M S ® “ <...
  • Page 160 Fig. 8-9. P /O A 2 . P a rtia l V e rtic a l c ir c u it b o a rd .
  • Page 163 ^R280yA | |R 28 4| _ C R 2 S 0 l JJJ ™ > »»C R 2 70j iaaR 272S fW |R 274 R 28 7; R2S8 tC A L B O A R D n, •tf'5 00 ASf See Figs.
  • Page 164 4 3 4 © 500 mV 500 its C O U P L IN G R637 RC.34 'C R 4 > 4 4 SsEE PART‘D Lt-feT FOR S E M ' C O M D U C T O R ' Y P E % -* S W F F P Q C jO S A RC44...
  • Page 165 I jjlicc|... ‘ T P 6 5 0 I Q R 6 7 8 C R 662 R 680 , ^ a 2 S S S B | T P 6 6 Q >, R652 9 0660* R651 [R646 C 794 |C690 C 692 |R688...
  • Page 166 4 3 4 © 4 R © © © 45 "v T1" 1- •h - h 5 0 0 © --- © : ± t - <© — © - ©I © ■ j “ [ © © 7 74 ©...
  • Page 167 R879 R 8 0 4 0 8 7 4 ] £ Q 884 R 803| C 8 9 6 Q 8 8 7 ICC: Q 870 R877 Q 880 R870 J -C R 8 9 8 JCR896H m i i C R S 6 6 - R866 scJiS ^jCR836 >...
  • Page 168 S 9 5 P /O A 8 HO R1Z URCUtT BOARD ( Voltages and waveforms obtained under eonditu o t e ■SEE . L IS T given on page 8-2 except as follows; f a r t s f o r B E M I ^ O N D U C T O R T Y P E B j "BEAM FINDER P ressed...
  • Page 169 R807 R846 VR 809 R805 R809 R806 NOTE C710A, C710B, & C710C SHOWN REMOVED C718 C716 P7 7P77 P79 i HORIZONTAL BOARD 6 7 0 1359 ASSY See Figs. 8-13, 8-14, and 8-15 fo r location o f components not identified here. Fig.
  • Page 170 -M I5V ^ 3 ^...
  • Page 171 C1038I f: -4 - : ;C W 3 6 | ?j’C1034 ,' iVR 104/1 [R1036 j TP1Q34I 12 [ S 1024j C1020 jR1034j : R 1047 VR1l»2o1*® H 1 0 2 0 ® 8a si 1046 VRt026^. lO R lV ^-4'' 109i ; B e i uibMyt~ <...
  • Page 173 Fig. 8-20. P/O A10. Partial Power Supply Secondary circuit board.
  • Page 174 Fig. 8-21. A l l & A 1 2. Transform er Prim ary and Secondary circ u it boards.
  • Page 176 P130 R990 VR988 VR9J/’ VR987 VR937 R995 R962A VR986 VR935 R962B R985 R962C ’ S TP962 CR935 , R962D TTCR931 R962E Q995 ’ Q990 < \)9 9 0 | VR980 Q989 VR981 C957.7 o J f g H R967 • R 9 5 6 # . f m C993 R 9 8 0 B oo R922...
  • Page 177 43 4 <5> <D •3.5 V...
  • Page 178 JQ 1266 IQ1260 I Q 1210 ^ ° 4 Q 1 2 3 0 J | ‘ Q 1280 Q 1246 o 1C1246 TYRE 434 SlpGRAGEf BOAROI 670*152^*00 J |$ Y R12*6 ' /R1292 R: e» Q 1294 12761 pTP 1296j6...
  • Page 179 <z> F d> £ <!> ( l ) < s > <D -^ 5 — -7 - S T O R A G E <$> 4 3 4...
  • Page 180 4 3 4 /R 4 3 4 SECTION 9 MECHANICAL PARTS LIST FIGURE 1 FRONT Fig. & Index Tektronix Serial/Model No. Description Part No. Eff____________ Disc 1 2 3 4 5 426-0721-00 FRAME, light filter, plastic 378-0678-00 FILTER, light, CRT 366-0493-01 KNOB, red—VARIABLE...
  • Page 181 Mechanical Parts List— 4 3 4 /R 4 3 4 FIGURE 1 FRONT (cont) Fig. & Serial/Model No. Index Tektronix Description Part No. Disc 3 4 5_____________________________ PUSHBUTTON— GND 1-17 366-1257-03 366-1161-29 PUSHBUTTON— CH 1 PUSHBUTTON— ALT 366-1161-31 366-1161-27 PUSHBUTTON— ADD 366-1161-30 PUSHBUTTON—...
  • Page 182 Mechanical Parts List— 4 3 4 /R 4 3 4 (cont) FIGURE 1 FRONT Fig. & Index Tektronix Serial/Model No. Description Part No._________ Eff____________ Disc______ y < s CIRCUIT BOARD ASSEMBLY—TRIGGER COUPLING A7 1-48 670-1363-00 circuit board assembly includes.- 388-1922-00...
  • Page 183 Mechanical Parts List— 4 3 4 /R 4 3 4 FIGURE 1 FRONT (cont) Fig. & Index Tektronix Serial/Model No. Description Part No. Disc 1-74 670-1359-03 CIRCUIT BOARD ASSEMBLY— HORIZONTAL A8 circuit board assembly includes: 388-1918-00 CIRCUIT BOARD 131-0589-00 TERMINAL, pin, 0.50 inch long...
  • Page 184 Mechanical Parts List— 4 3 4 /R 4 3 4 (cont) FIGURE 1 FRONT Fig. & Index Tektronix Serial/Model No. Description Port No._________ Eff____________ Disc______ y 1 2 3 1 5 SPRING, helical compression 1-103 214-1541-00 -104 376-0121-00 COUPLER, mag...
  • Page 185 Mechanical Parts List— 4 3 4 /R 4 3 4 FIGURE 1 ( co nt) FRONT Fig. & Index Tektronix Serial/Model Description Part No. E ff Disc 3 4 5_______________________ ______ 1-129 670-1332-00 CIRCUIT BOARD ASSEMBLY—Z AXIS A14 circuit board assembly includes:...
  • Page 186 Mechanical Parts List— 4 3 4 /R 4 3 4 (cont) FIGURE 1 FRONT Fig. & Index Tektronix Serial/Model No. Description Part No. Disc 5______________________________________ 1-151 386-1923-00 SUPPORT, CRT shield, rear mounting hardware.- ( n o t i n c l u d e d...
  • Page 187 FIG. 1 Front...
  • Page 188 Mechanical Parts List— 4 3 4 /R 4 3 4 FIGURE 2 CHASSIS, REAR & STANDARD ACCESSORIES Fig. & Index Tektronix Serial/Model No. Description Part No. Disc LINE FILTER ASSEMBLY 119-0295-00 line filter assembly includes: CIRCUIT BOARD— LINE FILTER A13...
  • Page 189 Mechanical Parts List— 4 3 4 /R 4 3 4 (cont) FIGURE 2 CHASSIS, REAR & STANDARD ACCESSORIES Fig. & Index Serial/Model No. Tektronix Description Part No. Disc 1 2 3 4 5 ________________________ 2-25 FUSEHOLDER, 352-0014-00 w / h a r d w a r e...
  • Page 190 Mechanical Parts List— 4 3 4 /R 4 3 4 FIGURE 2 CHASSIS, REAR & STANDARD ACCESSORIES (cont) Fig. & Index Tektronix Serial/Model No. Description Part No. Disc 5_______________________ _________ _ INSULATOR, transformer, top front 2-50 342-0089-00 TRANSFORMER INSULATOR, transformer, bottom front...
  • Page 191 Mechanical Parts List— 4 3 4 / R434 FIGURE 2 CHASSIS, REAR & STANDARD ACCESSORIES (cont) Fig. & Serial/Model No. Index Tektronix Description Part No. Disc 2-79 SPRING, helical compression, 0.25 inch long 214-1672-00 HEATSINK HALF, transistor, bottom 214-1527-00 337-1451-00...
  • Page 192 Mechanical Parts List— 4 3 4 /R 4 3 4 FIGURE 2 CHASSIS, REAR & STANDARD ACCESSORIES (cont) Fig. & Index Tektronix Serial/Model No. Description Part No. Disc 5_______________________________________ COIL 2 -1 0 5 ------ --- - - mounting hardware for each: (not included w/coil) SCREW, 6-32 x 0.25 inch, PHS...
  • Page 193 Mechanical Parts list— 4 3 4 /R 4 3 4 FIGURE 2 CHASSIS, REAR & STANDARD ACCESSORIES (cont) Fig. & Index Tektronix Serial/Model No. . Description Part No. Disc 1 2 3 4 5 2-131 376-0092-03 COUPLER HALF, shaft coupler half includes: 213-0076-00 SETSCREW, 2-56x0.125 inch, HSS...
  • Page 194 Mechanical Parts List— 4 3 4 /R 4 3 4 FIGURE 2 CHASSIS, REAR & STANDARD ACCESSORIES (cont) Fig. & Index Tektronix Serial/Model No. Description Part No. Disc 5_______________________________________ 2-156 131-1031-00 CONTACT ASSEMBLY, top -157 670-1357-00 CIRCUIT BOARD ASSEMBLY— INPUT AMP A1...
  • Page 195 Mechanical Parts List— 4 3 4 /R 4 3 4 FIGURE 2 CHASSIS, REAR & STANDARD ACCESSORIES (cont) Fig. & Index Tektronix Serial/Model No. Description Part No. Disc 5_______________________________________ 2-183 407-0900-00 BRACKET, variable resistor mounting hardware for each: ( n o t i n c l u d e d...
  • Page 196 Mechanical Parts List—-434/R 434 FIGURE 2 CHASSIS, REAR & STANDARD ACCESSORIES (cont) Fig. & Index Tektronix Serial/Model No. D escrip tio n Part No. Eff____________ Disc______ y 1 2 3 131-0621-00 CONNECTOR, terminal 131-0865-00 TERMINAL, pin, S-pin, male 131-0622-00 CONNECTOR, terminal...
  • Page 197 434/R434 FIG.2 Chassis, Rear & Standard Accessoires...
  • Page 198 Mechanical Parts List— 4 3 4 /R 4 34 FIGURE 3 CABINETS Fig. & Index Tektronix Serial/Model No. Description Part No. Disc 2 3 4 200-1203-00 COVER, front 200-0602-00 COVER, handle 367-0140-01 HANDLE, carrying mounting hardware: ( n o t i n c l u d e d...
  • Page 199 ®...
  • Page 200 434/R434 STORAGE OSCILLOSCOPE FIG.3 Cabinets...
  • Page 201 C AR TO N A S SEM BLY (Part No. 065-0157-00) Fig. & Tektronix Index Serial/M odel No. Description Part No. Disc 065-0157-00 1 CARTON ASSEMBLY carton assembly includes: 004-0361-00 PAD SET, 6 piece 004-0461-00 CARTON, outer 434/R434 STORAGE OSCILLOSCOPE FIG.4 R434 Repacking...
  • Page 202 CARTON ASSEMBLY (Part No. 065-0157-00) Fig. & Tektronix Index Serial/M odel No. Description Part No. Disc 004-0357-00 PAD SET, 1 piece 004-1103-00 PAD SET, 3 piece 004-1102-00 PAD SET, 4 piece 004-0460-00 CARTON, inner...
  • Page 203 P art N o . E ff Disc 065-0156-00 CARTON ASSEMBLY carton assembly includes: 004-0285-00 ETHAFRAME 004-0704-00 CARTON, accessory 004-0794-00 CARTON 4 3 4 /R434 STORAGE OSCILLOSCOPE + - • F IG . 5 434 R EP A C K A G IN G...
  • Page 204 M ANUAL CHANGE INFORMATION A t Tektronix, w e continually strive to keep up w ith latest electronic developm ents by add ing circuit and component improvements to our instruments as soon as they are devel­ oped and tested. Sometimes, due to printing and shipping requirements, we can't get these changes im m ediately into printed manuals.
  • Page 205 All Serial Numbers Page 1 of 2 TEXT CORRECTIONS SECTION 1 Specification Page 1-2 TABLE 1-1 CHANGE: Supplemental Information for "Bandwidth At Upper -3 dB Point" to read: Bandwidth checked with a six-division reference signal DC coupled from a 25 0 source, centered vertically.
  • Page 206 Page 2 of 2 All Serial Numbers SECTION 5 Calibration Step 12. Check Stored Writing Speed Page 5-11 ADD: After the step title: NOTE Storage Writing Speed specifications apply for a new CRT. Some degradation with usage is normal. Step 12 Page 5-12 CHANGE: The following portions of the step to read:...
  • Page 207 All Serial Numbers ELECTRICAL PARTS LIST CORRECTION A 15 UPPER STORAGE SWITCH Circuit Board Assembly CHANGE TO: 670-1525-00 Complete Board Switches Wired or Unwired 670-1525-00 Push-push UPPER SCREEN S90B. S90C A 16 LOWER STORAGE SWITCH Circuit Board Assembly CHANGE TO: 670-1524-00 Complete Board Switches...
  • Page 208 432 EFF SN B050000-up 434 EFF SN B05OOOO-up ELECTRICAL PARTS LIST CORRECTION A8 HORIZONTAL Circuit Board Assembly CHANGE TO: 670-1359-08 Complete Board (432) 670-1359-09 Complete Board (434) ADD: 6.8 kH 1/4 W R747 315-0682-00 MECHANICAL PARTS LIST CORRECTION SECTION 9...
  • Page 209 Page 1 of 2 432 EFF All SN 434 EFF All SN ELECTRICAL PARTS LIST AND SCHEMATIC CORRECTION A2 VERTICAL Circuit Board Assembly CHANGE TO: 281-0504-00 C460 10 pF (nominal value) Selected R220 Selected (90.9 to 102 0 range) R223...
  • Page 210 Page 2 of 2 TEXT CORRECTION Calibration SECTION 5 Step 20. Check CH 1 Variable VOLTS/DIV Range and Attenuator Accuracy (434) Page 5-15 Step 15 Check CH 1 Variable VOLTS/DIV Range and Attenautor Accuracy (432) Page 5-12 Before TABLE 5-1: ADD:...
  • Page 211 EFF SN B050000-up EFF SN B050000-up ELECTRICAL PARTS LIST AND SCHEMATIC CORRECTION A8 HORIZONTAL Circuit Board Assembly CHANGE TO: 670-1359'-06 (432) Complete Board (434) Complete Board 670-1359i-07 321-0247-00 3.65 k f l Prec R675 1/8 W 1 7 . 321-0113-00...
  • Page 212 EFF SN B060000-up EFF SN B060000-up ELECTRICAL PARTS LIST AND SCHEMATIC CORRECTION A8 HORIZONTAL Circuit Board Assembly CHANGE TO: R871 323-0327-00 24.9 k f l 1/2 W Prec R881 323-0327-00 24.9 k f l 1/2 W Prec ADD: R872 323-0327-00 24.9 k f l 1/2 W Prec...
  • Page 213 432 EFF SN B060000-up 434 EFF SN B060000-up Page 1 of 3 ELECTRICAL PARTS LIST CORRECTION CHASSIS CHANGE TO *R83 Selected for optimum focus tracking with intensity change. A8 HORIZONTAL Circuit Board Assembly CHANGE TO (432) 670-1359-10 Complete Board (434)
  • Page 214 432/434 Page 2 of 3 SCHEMATIC CORRECTION R 9 3 ! ! 4 . 7 K ^ - ~ N C W ----------- P I 2 5 - 2 R 93 I 2 . 2 K W A S TOPIN 6...
  • Page 215 434 EFF SN B060000-up Page 3 of 3 TEXT CORRECTION SECTION 2 Operating Instructions Page 2-5 General Operating Information ADD: At the end of the first paragraph under ' Intensity Control': ...of display intensity. Maximum intensity is reached with the control advanced to approximately 3 o'clock.
  • Page 216 432/R EFF SN B070000-up Pa8e 1 of 2 434/R EFF SN B070000-up ELECTRICAL PARTS LIST AND SCHEMATIC CORRECTION A2 VERTICAL Circuit Board Assembly CHANGE TO: C222 281-0571-00 82 pF 500 V 207. C322 281-0571-00 82 pF 500 V 207. M18,365/1271...
  • Page 217 Page 2 of 2 432/R EFF SN B080000-up 434/R EFF SN B080000-up ELECTRICAL PARTS LIST AND SCHEMATIC CORRECTION Z AXIS Circuit Board Assembly CHANGE TO: VR980 400 mW, 82 V, 5% 152-0357-00 Zener 1N983B 400 mW, 62 V, 57 VR981...
  • Page 218 434/R434/434-950A EFF SN B090000-up ELECTRICAL PARTS LIST AND SCHEMATIC CORRECTION A17 STORAGE Circuit Board Assembly CHANGE TO: R1232 306-0124-00 120 k f t R1282 306-0124-00 120 k f t M18,412/1271...
  • Page 219 Page 1 of 2 All Serial Numbers O P T I O N This insert includes specification, text and part number changes to allow this manual to also apply to Instruments equipped with the Option 1 Fast Stored Writing Speed cathode ray tube.
  • Page 220 CRT, Standard V100 *154-0666-02 CRT, Option 1, Past Writing Speed SECTION 9 Mechanical Parts List Page 9-16 Tektronix Part No. 131-0865-00 CHANGE TO: 131-0865-00 4 TERMINAL, pin, S-pin, male (Standard CRT) 131-0049-00 4 TERMINAL, pin, female (Option 1 CRT) S18,182/1071...
  • Page 221 432/R432 EFF SN B050000-up 434/R434 EFF SN B050000-up SECTION 9 Page 9-16 STANDARD ACCESSORIES CHANGE TO: 010-6061-01 PROBE PACKAGE, P6061, 3.5 foot w/XlO readout spring Rev. M18,226/1071...
  • Page 222 432/R432 EFF SN B100000-up } 434/R434 EFF SN BlOOOOO-up ELECTRICAL PARTS LIST AND SCHEMATIC CORRECTION VERTICAL Circuit Board Assembly ADD: 281-0592-00 ‘ 4.7 pF ±1/2 pF C471 TRIGGER SOURCE SWITCH Circuit Board Assembly ADD: 316-0104-00 \ 100 k f l...

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