Tektronix 7B50 Скачать руководство пользователя страница 1

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Содержание 7B50

Страница 1: ...1 ST FZ UC 10 VAL Serial Nu mber j _3c 7 50 TIME BASE Tektronix Inc S W Millikan Way Box 500 Beaverton Oregon 97005 Phone 644 0161 Cables Tektronix 070 0975 00 1069...

Страница 2: ...ix Field G t or rep e s r tr _st ve in your area This proced u re will ass u re you t h e fastest possible service P lease include the instrument Type and Serial or Model N u mber with all requ ests f...

Страница 3: ...acteristics 1 2 Altitude 1 2 Transportation 1 2 Physical Characteristics 1 2 Finish 1 2 Weight 1 2 Dimensions 1 2 OPERATI N G INSTRUCTIONS General 2 1 Installation 2 1 Front Panel Controls and Connect...

Страница 4: ...Trigger TO Stage 3 6 Pulse Amplifier 3 6 Sweep Gate Stage 3 7 Bright Line Auto 3 7 External Amplifier 3 7 Sweep Generator 3 g Disconnect Amplifier 3 10 Sawtooth Generator 3 10 Sweep Start Amplifier 3...

Страница 5: ...5 5 Level Slope Range 5 6 Trigger Bandwidth 5 6 External Trigger Input Compensation 5 6 Sweep Jitter 5 7 Trigger Modes 5 7 Sweep Calibration 5 8 Magnified Sweep Gain 5 8 Magnifier Registration 5 9 Swe...

Страница 6: ...Fig 1 1 Type 7850 Time Base GAWN 1...

Страница 7: ...mperature of 0 C to 50 C unless otherwise noted Warmup time for given accuracy is 20 minutes Characteristic Performance Sweep Rate Calibrated Range 5 s div to 0 05 s div steps in 1 2 5 sequence 10 mag...

Страница 8: ...internal 750 mV external 10 MHz to 100 MHz TABLE 1 2 TABLE 1 3 Performance Performance To 50 000 feet and 55 C Qualified under National Safe Tran sit Committee test procedu re 1 Category PH YSICAL CHA...

Страница 9: ...ig 2 1 to disengage the unit from the indicator and pull it out of the plug in compartment Even though the horizontal gain of the indicator oscilloscope is standard ized to minimize adjustment when in...

Страница 10: ...e is above about 200 hertz and with in t h e frequency range selected by the COUPLI NG F ig 2 2 Front Panel controls and connector switch Triggered sweep can be obtained throughout the entire range of...

Страница 11: ...ontrol is out side the amplitude range the trigger repetition rate is outside the frequency range selected by the COUPLING switch the trig ger signal is i nadequate or when the RESET READY light is of...

Страница 12: ...l sweep with in the center division of the graticule is the portion shown in magnified form Screwd r iver adjustment to set amplitude of the output sawtooth Display Mode TIME BASE Selects sweep rates...

Страница 13: ...7 50 TEST S ET UP CH ART Fig 2 3 Operating Instructions Type 7 50...

Страница 14: ...s given in steps 1 5 under Normal Sweep Then proceed as follows 1 Press the STA RTS AFTER D ELAY push button on the time base 2 Set the indicator oscilloscope horizontal mode to dis play the time base...

Страница 15: ...ep rate indicated by the DI V switch to produce reference trace TR IG D light off When an adequate trigger signal is again applied the free running condition ends and triggered disp lay is presented T...

Страница 16: ...rm To avoid confusion due to the CRT persistence allow the display to decay before pressing the RES ET READY pushbutton agai n At fast sweep rates it may be difficult to view the single sweep display...

Страница 17: ...f the trigger signal This F ig 2 6 Frequency range of each COUPLING switch position Operating Instructions Type 71350 position is particularly useful for providing stable triggering if the trigger sig...

Страница 18: ...the trigger slope is often unimportant However if only certain portion of cycle is to be displayed correct setting 2 10 of the LEVEL SLOPE control is important to provide display which starts on the...

Страница 19: ...E control in negative slope region me 0 LEVEL SLOPE Fig 2 7 Effect of LEVEL SLOPE control on CRT display AUTO MODE Operating Instructions Type 71350 HEMEMNEWEN mu mmmummmo mm r rm rm m m mm m OMEN Emm...

Страница 20: ...F I ER issetto 10 see Horizontal Position Control discussion wh ich follows To use sweep magnification first move the portio n of the d isplay which is to be expanded to the center of the graticule Th...

Страница 21: ...l ips Technical Library Springer Verlag New York 1965 Robert G M iddleton and L Donald Payne Using the Oscilloscope in Industrial E lectronics Howard W Sams Co Inc Th e Bobbs Merrill Company Inc India...

Страница 22: ...3 Set the VOLTS DIV switch to display about four divisions of the waveform 4 Set the Type 7 50 triggering controls to obtain stable display 5 Set the DIV switch to the fastest sweep rate that displav...

Страница 23: ...eform 7 Determine the 10 and 90 points on the rising por tion of the waveform The figures given in Table 2 1 are for the points 10 up from the start of the rising portion and 10 from the top of the ri...

Страница 24: ...e divisions in amplitude see F ig 2 12 DELAY TIME MULTIPLIER DELAY TIME MULTIPLIER dial dial 2 23 7 73 time difference ENNEEME ONIVENNEWEN NNAORMORNE ENNEENNEEN ON BEENE W MEMENEEMMM MMMMMMMMMM Fig 2...

Страница 25: ...d at the sweep rate selected by the DI V switch The fol lowing method uses the STARTS AF TER DELAY posi tion to allow the delayed portion to be positioned with the DELAY TIME MULTI PL I ER d ial If th...

Страница 26: ...ay of lower amplitude portion which follows the triggering event The delayed sweep feature provides means of delaying th e start of th e sweep by selected amount following th e event which triggers th...

Страница 27: ...th is mode one of the sine wave signals provides horizontal deflection wh ile the oth er signal provides the ver cal deflection The phase angle between the two signals can be determined from the lissa...

Страница 28: ...surement between the two points where the trace crosses the center horizontal reference line Distance is the h orizontal width of the d is play 6 Divide by to obtain the sine of the phase angle betwee...

Страница 29: ...se diagrams throughout th e followi ng circuit description for electrical values and relationship General BLOC K DIAG RAM Type 71350 The following discussion is provided to aid in u nder stand ing the...

Страница 30: ...Circuit Desc ription Type 7 50 z S _ z Stu 1 _ __ vl e Lo F __ M I L_ T i l _ SO 1L Fig 3 2 Trigger Preamp and Input Switching Block Diagram z...

Страница 31: ...eneral The Trigger Generator circuit produces trigger pulses to start the Sweep Generator circuit These pulses are derived from either the internal trigger signal from the Vertical Deflection System a...

Страница 32: ...in current through Q224 makes the base of Q244 less positive and the decrease in current through Q234 makes the base of Q254 more positive R efer to F ig 3 4 for current paths for posi tive slope tri...

Страница 33: ...256 and the parallel m Fig 3 4 Trigger Path for Positive Slope Triggering simplified Circuit Description Type 71350 bination of CR262 and R267 C267 L267 to the 15 volt su pply Since the output pulse f...

Страница 34: ...bination of L267 R 267 C267 with Q266 provide resistive load from CR262 and form 3 6 F ig 3 5 Trigger Path for Negative Slope Triggering simplified Schmitt circuit As this current increases due to an...

Страница 35: ...nal Amplifier Circuit Descri ption Type 71350 With no trigger pulse applied to the circuit 0273 is at low current level The anode of CR 275 is at ground poten tial This clamps the base of Q275 at abou...

Страница 36: ...al amplifier Q754 is off when the DISPLAY MODE switch is in the AMPLI FI ER position In the TIME BAS E position the External Amplifier is turned off and Q754 is turned on to accept th e current from Q...

Страница 37: ...I nhibit Delay Mode Control 4 5 V Sweep Reset Multivibrator C1432 0436 STARTS 3 V AFTER DELAY 0 V TR IGG ERABLE AF TER D ELAY IN DEPEN DEN T Holdoff Capacitor and Amplifier Q582 C580 Sweep Start Ampli...

Страница 38: ...source breakdown of Q532A 1 1 LLMAN TAUB pp 540 548 Sweep Start Amplifier Q594 sets the quiescent voltage of the sawtooth The collector current of Q594 flowing through R 523 establishes the correct st...

Страница 39: ...eration of the Sweep Generator Circuit in the SI N G LE SWEEP position of the TR IGG ER I NG MODE switch is similar to operation in the other modes However Alternate Operation Circuit Description Type...

Страница 40: ...plifier which provides stable gain HORIZONTA L PREAMP and low input impedance POSITION control R744 and varies the DC level at the base of paraphase amplifier Q784 to p osition the display horizontall...

Страница 41: ...l for dislodging d irt on and around the front panel controls Dirt wh ich remains can be removed with soft cloth dampened in mild detergent and water solution Abrasive cleaners can not be used SECTION...

Страница 42: ...e color coded in picofarads using modified code see F ig 4 1 Diode Color Code The cathode end of each glass encased diode is indicated by stripe series of stripes or dot For most silicon or germanium...

Страница 43: ...May not be present in some cases Fig 4 1 Color code for resistors and ceramic capacitors Maintenance Type 71350 5 Isolate Trouble to Circuit To isolate trouble to circuit note the trouble symptom The...

Страница 44: ...Check for about 5 complete cycles 10 divisio ns I nsert the Type 71351 into the left horizontal compartment and the 7 50 into the right hori zontal compartment Set the oscilloscope horizontal mode to...

Страница 45: ...izo n tal pre amp cir cuits no sweep output Check vertical unit positio ning and DC balance not lit For trouble not covered by this chart use the troubleshooti ng methods in steps 6 and 7 of the troub...

Страница 46: ...High currents may damage the diode D RESISTO RS Resistors can be checked with an oh mmeter Check the Electrical Parts List for the tolerance of the resistors used in th is instrument Resistors normall...

Страница 47: ...board and clean off any residual flux with flux removing solvent Be careful that the solvent does not re move any printing from the circuit board Metal Terminals When soldering metal terminals e g swi...

Страница 48: ...d Solder the socket tabs to the circuit board The spring tension of the terminal sockets ensures good connection between the circuit board and the 4 8 Fig 4 3 E lectrode configuration of transistors u...

Страница 49: ...pe 71350 4 To remove the MAGNI F I ER switch remove the ph illips head screw and d isconnect the multi pin connector 5 To remove the T R IGGER I NG switches remove the two phillips head screws from ea...

Страница 50: ...Maintenance Type 7 50 4 10 F ig 4 4 Trigge r generator board fro nt view showing location of components...

Страница 51: ...L ateProduction location Early production Ioeation Fig 4 5 Sweep generator board fro n t view sh owin g location of comp onents Mainten ance Type 7 50 4 11...

Страница 52: ...Maintenance Type 7 50 4 1 2 Fig 4 6 Interface board left side showing location of components...

Страница 53: ...Fig 4 7 Coupli ng switch board showing location of components Fig 4 8 Source switch board showing location of components Maintenance Type 7 50 4 1 3...

Страница 54: ...Maintenance Type 7B50 m Gm _ m j mm m m mm m m Q m 0 m Q Q o CC U m Q V LU z 0 z c c _ Q m c 0Q r JO Q c CI D U U Q Q coo e Q Q 6 Q Qo Q Q m Q QQ _j 13_ 13 _j i LO...

Страница 55: ...en with Tektronix Oscilloscope Camera System L imits tolerances and waveforms in this procedure are given as calibration guides and should not be interpreted as instrument specifications except as spe...

Страница 56: ...Part N umber 011 0059 01 14 50 ohm feedthrough termination Tektronix Part Number 011 0049 01 15 Adapter GR to BNC female Tektronix Part Num ber 017 0063 00 SHORT FO RM PROC EDURE Type 7 50 Calibratio...

Страница 57: ...Performance Correct Incorrect Performance Check Calibration Type 71350 14 Check Adjust 5 s Timing C530J Page 5 10 Requirement With 5 s markers applied and DIV set to 5 s check for one marker each div...

Страница 58: ...ntrol Settings Type 713511 horizontal plug in compartment Level Slope 0 Page 5 12 Type 71350 horizontal plug in compartment LEVEL SLOPE 0 TR IGGER ING MODE N ORM COUPLING AC SOURCE POSITION MIDRANGE M...

Страница 59: ...ive and negative slopes of the signal 5 ohn 29 uF erm rm ahzer Performance Check Calibration Type 71350 F ig 5 1 Test equipment required for steps 1 through 8 Type 7B50 2 C h ec k Adj ust AUTO LEVEL R...

Страница 60: ...pF normalizer to the Type 7 16 input Adjust the Type 106 amplitude for five division display Reset the Type 71350 SOURC E to EXT Connect the 1 kHz signal through the 10 attenuator 50 ohm termina tion...

Страница 61: ...djust the ampli tude for four division display CHECK Turn the LEVEL SLOPE control through out its range and check for proper triggering at all positions Remove the signal from the Type 7 16 and check...

Страница 62: ...50 TR IGG ER I NG COUPLI NG to DC and SOURC E to Set the Time Div to 10 ms Set the low frequency sine wave generator to 50 Hz and adjust the amplitude for 2 division display CHECK stable display can b...

Страница 63: ...MAGN I F I ER to 1 d CHECK Middle marker remains at the center vertical line See Fig 5 3 e ADJU ST R795 Mag Regis to position the middle marker to the center vertical line f Alternately switch the MA...

Страница 64: ...coincide exactly with their respective graticule lines use the horizontal POSITION control as necessary to line up display 15 Check Adjust 0 2 s Timing C530 L Set the time mark generator for 1 s mark...

Страница 65: ...ange the Type 7504 horizontal MODE to Set the Type 71351 D ELAY MODE to INDEPENDENT Set the Type 71350 TRIGGERING SOURCE to and the DISPLAY MODE to AMPLIFIER Turn the amplifier VARIABLE fully clockwis...

Страница 66: ...s b Set the Type 7504 Calibrator to 1 kHz and 4 V Connect the calibrator output through connec tor to the Type 7 50 and Type 7 51 TR IG IN connectors d CHECK The horizontal deflection is between 4 div...

Страница 67: ...yrene EMC electrolytic metal cased prec precision EMT electrolytic metal tubular PT pa per tubular ext external paper or plastic tubu lar molded F focus and intensity RHB rou nd head b rass FHB flat h...

Страница 68: ...wing information in your order Part nu mber in strument type or number serial or model nu mber and modification number if app licable If part you have ordered h as been replaced with new or im proved...

Страница 69: ...ly 6 2 TIME BASE Circuit Board Assembly 6 3 TRIGGER Circuit Board Assembly 6 10 DIS PLAY MODE Circuit Board Assembly 6 16 SOURCE Circuit Board Assem bly 6 16 MODE AUTO LEVEL Circuit Board Assembly 6 1...

Страница 70: ...323 0452 00 499 42 2 W Prec 1 R 142 315 0101 00 100 1 W 5 R 260A 131 311 0972 00 10 k 10 k Var R340 311 0091 00 1 k Var R531 311 0959 00 10 W V r R740 311 0486 00 500 Var R744A 311 0965 00 010100 0899...

Страница 71: ...46 08 4 75 2 W Prec 1 R530D 323 0546 08 4 75 2 W Prec 1 R 530F 323 0767 07 1 425 2 W Prec 1 10 R 530H 323 0450 07 475 k 2 W Prec 1 10 R530J 323 0450 07 475 k 2 W Prec 1 10 R530K 323 0774 07 118 7 k 2...

Страница 72: ...81 0525 00 470 pF Cer 500 V C527 281 0523 00 100 pF Cer 350 V C530J 281 0093 00 5 5 18 F Var Cer C530 K 283 0126 00 82 pF Cer 1000 V 5 R711 315 0753 00 75 k W 5 R 712 315 0154 00 150 k W 5 R713 315 07...

Страница 73: ...788 290 0284 00 010100 019999 4 7 F Elect 35 V 10 C788 283 0164 00 020000 2 2 F Cer 25 V C789 283 0110 00 010100 019999 0 005 F Cer 150 V C789 283 0092 00 020000 0 03 p4F Cer 200 V 80 20 C799 290 0136...

Страница 74: ...ble by 1 4152 CR469 152 0185 00 Silicon R eplaceable by 1 4152 CR525 152 0185 00 Silicon Replaceable by 1 4152 CR529 152 0246 00 Silicon Low leakage 250 mW 40 V CR534 152 0185 00 Silicon Replaceable b...

Страница 75: ...00 FET Dual Tek Spec Q534 151 0188 00 13010100 13109999 Silicon 2 3906 Q534 151 0289 00 13110000 Silicon Tek Spec Q546 151 0220 00 Silicon 2 4122 Q554 151 0190 01 Silicon Tek Spec Q564 151 0190 01 Sil...

Страница 76: ...37 315 0111 00 110 4 W 5 R 438 301 0621 00 620 2 W 5 R 439 315 0201 00 200 4 W 5 R441 301 0470 00 47 5 R444 315 0102 00 1 k W 5 R448 321 0277 00 7 5 k W Prec 1 R449 315 0472 00 4 7 k 4 W 5 R 451 315 0...

Страница 77: ...k Prec 1 R 554 321 0178 00 698 8 W Pr ec 1 R556 321 0260 00 4 99 k Prec 1 R557 321 0239 00 3 01 k Prec 1 R558 321 0193 00 1 k Prec 1 R561 315 0820 00 82 4 W 5 R564 321 0207 00 1 4 k Prec 1 R565 321 0...

Страница 78: ...0244 00 3 4 k N Prec 1 R773 321 0205 00 1 33 k 8 Prec 1 R774 303 0332 00 3 3 k 1 5 R 781 323 0272 00 6 65 k Prec 1 R782 321 0735 07 1 001 k Prec 1 10 R783 315 0752 00 7 5 k 4 W 5 R 784 321 0228 00 2 3...

Страница 79: ...3 0000 00 0 001 F Cer 500 V C206 283 0000 00 0 001 F Cer 500 V C214 283 0000 00 0 001 1 F Cer 500 V C215 281 0578 00 18 pF Cer 500 V 5 C217 283 0000 00 0 001 F Cer 500 V C223 281 0562 00 39 pF Cer 500...

Страница 80: ...25 pF 10 mA CR275 152 0185 00 Silicon Replaceable by 1N4152 CR277 152 0185 00 Silicon Replaceable by 1 4152 CR291 152 0322 00 Silicon Te k Spec CR299 152 0125 00 Tunnel 4 7 mA Tek Spec CR301 152 0185...

Страница 81: ...licon 2N3692 Q296 151 0224 00 Silicon 2 3692 Q305 151 0223 00 Silicon 2N4275 Q315 151 0223 00 Silicon 2 4275 Q319 151 0190 01 Silicon Tek Spec Q324 151 0220 00 Silicon 2N4122 Q326 151 0220 00 Silicon...

Страница 82: ...1 k 5 R205 315 0512 00 5 1 k 1 W 5 R206 315 0512 00 5 1 k 1 W 5 R213 315 0511 00 510 1 W 5 R214 315 0101 00 100 1 W 5 R215 315 0162 00 1 6 k 1 W 5 R217 315 0751 00 750 1 W 5 R 221 315 0162 00 1 6 k 1...

Страница 83: ...0 390 4 W 5 R294 315 0242 00 2 4 k 4 W 5 R295 315 0152 00 1 5 k 4 W 5 R296 315 0101 00 100 4 W 5 R301 321 0239 00 3 01 k 8 W Prec 1 R303 321 0177 00 681 Prec 1 R305 321 0126 00 200 8 W Prec 1 R307 307...

Страница 84: ...R353 315 0154 00 150 k 4 W 5 R354 315 0101 00 100 4 W 5 R 356 315 0915 00 9 1 4 W 5 R358 307 0103 00 2 7 4 W 5 R366 315 0104 00 100 k 4 W 5 R367 315 0202 00 2 k 4 W 5 R368 321 0258 00 4 75 k W Prec 1...

Страница 85: ...ist fo r replacement parts DISPLAY MODE Circuit Board Assembly SOURCE Circuit Board Assembly Bulb Capacitors Resistors R140C 321 0361 00 56 2 k 1 8 W Prec 1 R1 40E 321 0448 00 453 k 1 8 W Prec 1 R140F...

Страница 86: ...omposition 10 u nless otherwise indicated R145A 315 0513 00 51 k 4 W 5 R 145B 315 0333 00 33 k 4 W 5 R1 45E 317 0101 00 100 1 8 W 5 See Mechanical Parts List for replacement parts Bulbs DS325 150 0057...

Страница 87: ...Board 670 1107 01 080000 Complete Board Wired or Unwired COUPLING Circuit Board Assembly t See Mechanical Parts List for replacement parts Switch MAGNIFI ER Circuit Board Assembly Bulb DS780 150 0057...

Страница 88: ...following special symbols are used on the d iagrams 46 A Screwdriver adjustment Front or rear panel control or connector Refers to t he indicated diagram Connection sold ered to circuit board B lue li...

Страница 89: ...T R IG IN O R EXT VOLTS IN LEVEL 7 50 PLU G IN...

Страница 90: ...80 GAT E EM ITTER F OLL OWER Q319 SWEEP STA RT EMITT ER F O LLOWER Q524 4 DISCO NNE CT AMPLI F I ER Q526 FT D1 V OR L L SWEEP START CO MPA RA O R Q592 Q594 SWEEP GENERATO R 0 532 Q534 R 530 C530 SAW T...

Страница 91: ...noted on the individual diagrams Voltmeter Type Non loading DC VTVM Sensitivity 20 000 ohms volt Range 0 to 50 volts Type used for voltages Gene r al R ad io Ty p e on diagrams 1806 Electronic Volt me...

Страница 92: ...V O LTAC E wAVEFO RNI C ONOjT10 MS 7 5 PLUG IN on d iagram 1 exce pt as follows T RIG 1 OR VO L TS 1 VO LTAG ES an d WAVEFO RM S obtained un der conditions VO LTAG ES no signal app lied...

Страница 93: ...iined un d ei con d itions no signal a pp lie d 1 SO UR C E 5140 ET AC LFREJ NF R EJ S14S COU P L I N G DC REFEREN C E DIAG R A M S T R IGG ER G ENER ATO R SW ITC H I N G DIAG R A M 1 SEE PA R TS LIS...

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Страница 96: ...V DIV OV i V DI V i V DI V 5V DIV MEMEMEME I MEMEMMEME 2 ms DI V 50 2 MONSOON 2 ms V MOMMEMMEM E 0 ME IN 2 r s D O m ME 1111 limm 2 ms DI V 2ms DI V 2 V DI V 2V DI V S V DIV MEONE GGas among EMEMEMMM...

Страница 97: ...2R418 7 5 2 R 404 3 65 R 405 8 45 15v 19 43 Q432 Q4 011 5 9 R 462 CR 466 R448 7 5 Rd67 15 _i5 _ 5V PARTIAL I N TERFAC E BOARD 7E350 PLUG IN C R40 V R408 16 2 5 C409 L zR409 022 1 8 DCPL 1 R434 534 _1...

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Страница 109: ...must be purchased separately unless otherwise specified PARTS ORDERING INFORMATION R eplacement parts are available from or through your local Tektronix Inc Field Office or representative Changes to...

Страница 110: ...Type 71350 INDEX OF MECHANICAL PARTS ILLUSTRATIONS Title Location reverse side of Figure 1 Exploded Switching Diagram...

Страница 111: ...46 00 1 WASHER lock internal 0 261 x O 400 inch OD 10 210 0583 00 1 NUT hex 1 4 32 1 16 inch 11 1 RESISTOR variable mounting hardware not included resistor 12 210 0465 00 1 NUT hex 1 4 32x inch 13 670...

Страница 112: ...00 079999 1 ASSEMBLY pushbutton switch SOURCE Triggering 670 1104 01 080000 1 ASSEMBLY pushbutton switch SOURCE Triggeri ng assem bly includes 380 0155 02 1 HOUSI NG bulb cover mounti ng hardware not...

Страница 113: ...0x0 125 inch HSS 45 384 0490 00 1 SHAFT extension 5 93 inches long 46 670 1096 00 010100 131 19999 1 ASS EMBLY circuit board INTERFACE 670 1096 01 13120000 1 ASSEMBLY circu it board I NTERFACE assembl...

Страница 114: ...EMBLY circuit board TIME BASE 670 1097 04 130000 1 ASSEMBLY circuit board TIME BASE assembly incl udes 388 1331 00 010100 049999 1 BOARD circu it 388 1331 01 050000 1 BOARD circuit 79 214 0579 00 22 P...

Страница 115: ...uded terminal 113 131 0664 00 1 CONTACT electrical shaft ground 114 211 0105 00 1 SCREW 4 40 3 16 inch 100 csk FHS 115 352 0165 00 1 HOLDER terminal connector 7 terminal 116 131 0707 00 22 CONNECTO R...

Страница 116: ...med iately into pri nted manuals Hence your manual may contain new change information on following pages single change may affect several sections Sections of the manual are often printed at d ifferen...

Страница 117: ...TO TIME BASE Circuit B oard Assembly C789 283 0110 00 0 005 F Cer 150 V R789 317 0622 00 6 2 1c 1 8 W 5 ADD C788 290 0284 00 4 7 F EMT 35 V 107 R788 317 0472 00 4 7 k 1 8 W 5 COUPLING Circuit Board A...

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