Telequipment DM64 Manual Download Page 53

Page: 53 / 63

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Summary of Contents for DM64

Page 1: ...PAHAMQELIAJP KO EHHKO KLA OPKN CA cUBA I31 I JQ H ...

Page 2: ...kqbok i m oqp qeb ADP pelria b afp_e odba v qbjmlo ofiv peloqfkd qeb mmolmof qb mlfkqp ql _e ppfp clo fkpq k_b qeb NP _ qelab mfk ka L _lkkb_qlo tebob mmif_ ib RVFLOORVFRSH VWRUDJH WaSH GP97 FOR SERVICING AND SPARES ENQUIRIES SEE THE INFORMATION AT START OF CHAPTER 5 TEKTRONIX U K LTD 313 Cg_rd Rn_c Sntsgf_sd Lnmcnm N 14 6JJ Emfk_mc U ICe osi t q R eJ yf 1 3fOO TEKTRONIX INC o _ Bnw 500 Bd_udqsnm ...

Page 3: ...IAJD J A i JPACN PA H J SINGLE REP SHOT RESET TRIO LEVEL 4 STABILITY K NOA y 7 cy PNEC HIAC K P POSITION J S PR cibHK PR OLQH Ji PNEC DB J DKL Hi oy 1 yy o Q q 77SUM J c POSITION q KcBMKJ J KQP N EJRi77 P Kri JKNI H CH2 ...

Page 4: ...l should be kept to the minimum required to produce a clear well defined display Care must be observed in the degree of writing beam intensity used particularly when using slow sweep rates When attempting to store fast rising or fast falling portions of waveforms viewed at relatively slow sweep rates the high trace intensity required due to the intensity difference between the horizontal and the v...

Page 5: ...T 2 1 Access to interior 4 1 J Horizontal display 2 1 CRT Sweep 2 1 Removal 4 1 Trig Mode 2 1 Fitting 4 1 Vertical display 2 2 Location of Pre et controls 4 1 J Operation 2 3 Pre operational checks 2 3 5 COMPONENT LIST J 3 CIRCUIT DESCRIPTIONS Assemblies 5 16 Component 5 2 Attenuators 3 1 Mechanical 5 14 J Block Diagram 3 1 CRT 3 3 EHT Supplies 3 5 6 CIRCUIT DIAGRAMS Figure Horizontal amplifier 3 ...

Page 6: ... D C peak A C or sum of Channel 1 Channel 2 normal or inverted Channels 1 2 Alternate Chopped at 150 kHz approx Summed X V I xl0 _ _ xl D e 10 MHz D C 8 MHz 2 Hz 10 MHz 2 Hz 8 MHz 35 ns nominal 44 ns nominal CH 1 is vertical input CH2 selected via timebase switch as horizontal input D C 1 MHz Less than 10 at 10 kHz 10 mV 50 V div 5 1 mV div 5 V div Complete cover between sequence and to 125 V d iv...

Page 7: ...n Coupling Amplitude peak A C to Cathode 50 V maximum 20 V for perceptible modulation at average brilliance 10 nF and 10 krl 1 hour Manual or automatic at end of sweep 0 25 s approx Time constant Store Mode Erasure Erase time Writing rate Enhance off on Variable enhancement 25 div ms 250 div ms 25 250 div ms Calibrator peak to peak Accuracy Sweep sawtooth Coupling Amplitude peak to peak Minimum lo...

Page 8: ...100 125 V in 5 V steps 200 250 V in 10 V steps 48 400 Hz 100 V A approx Frequency Consumption Height Width Depth 24 cm 21 cm 37 cm Operating Non operati ng 5 to 40oC approx 25 to 70oC approx ...

Page 9: ...the X5 position all sweep speed calibra tions must be divided by 5 In the X V mode FINE inoperative X5 gain operative 2 1 3 SWEEP TIME DIV 2 1 4 TRIG MODE TV F md TV L controls the speed of the main sweep The sweep rates indicated are only valid if VAR IABLE is fully clockwise and FINE position is pushed in for X1 gain If FINE position is pulled out and VAR IABLE is at CAL the calibrations should ...

Page 10: ...ities are only valid when VARIABLE is fully clockwise enables all deflection sensitivities between that selected by the VOLTS DIV switch and the next below to be covered The control must be fully clockwise for a calibrated display for Xl0 gain the knob should be pushed in selects the input signal coupling In the DC position the signal from the INPUT connector is coupled directly to the attenuator ...

Page 11: ...the instrument to the supply check that the rear voltage selector plug is indicating the local supply voltage or the nearest value to it Check also that the fuse fitted is 1 A for 100 125 V operation or 500 mA for 200 250 V NOTE The 3 core supply lead is alternatively colour coded as follows Brown Black Earth Chassis Green Yellow Green Blue White 1 CRT BRILLIANCE FOCUS ASTIG STORAGE TRACE ROTATION...

Page 12: ...2 are identical with zener diodes 0604 0611 providing stabilized positive and negative voltages and diodes 0607 0608 the shift voltages CH1 is described below reference Figure 3 Where references are made to CH2 CH2 will be quoted 3 3 1 The output from the attenuator is fed to the gate of TR601 via a protection circuit C601 C602 R601 R602a R602b and R603 which prevents excessive voltage damaging th...

Page 13: ... of CHl and CH2 alternately to reach the basesof TR612 and TR613 1 R648 and R664 are returned to H T via R639 and R649 to form an astable multivibrator which free runs at 150 kHz approx Thus the outputs of CHl and CH2 are successively switched into TR612 and TR613 at 150 kHz At each transition a pulse is fed from the emitters of TR614 and TR615 via C642 to the unblanking amplifier Fig 6 which blan...

Page 14: ...e flyback and clamped by diode 072 The bistable is switched over by pressing RESET this applies a negative going pulse to TR73 base and causes the collector current to switch off and TR74 to conduct The circuit is then ready for the next incoming trigger pulse to fire the sweep 3 6 HORIZONTAL AMPLIFIER X AMPLIFIER The horizontal amplifier reference Figure 6 consists of a pre amplifier TR76 followe...

Page 15: ...wn towards the flood gun cathodes such that the flood gun landing energy is not sufficient to illuminate the phosphor in the target The target is now ready to write 2 Writing The storage target is scanned by high energy electrons from the writing cathode These electrons cause secondary emission to occur over the scanned area and the bombarded surface charges sufficiently positive to switch over to...

Page 16: ...nd of the pulse period when erasure is complete the back edge of the pulse resets the sweep ready for the next input signal to trigger it The negative pulse from Cl014 switches TR1007 off TR1009 on the circuit recovery rate being determined approximately by Cl015 Rl045 The output from the TR 1009 collector is differentiated and the positive edge removed by 01024 The negative edge from 01024 is the...

Page 17: ...wave rectifier provides O C for the CRT flood gun heater One half of the winding provides power for the graticule illumination bulbs 3 10 3 A second winding 100 0 100 V also with two full wave rectifiers supply 100 V 3 10 4 Two additional floating windings drive bridge rectifiers to supply the 180 V and 300 V lines 3 10 5 All lines are R C smoothed to provide low ripple supply voltagesfor the rele...

Page 18: ... front panel moving the forward end of the CRT to the left The CRT and screen may be removed with the cableform attached 8 Remove adhesivetape and rear location moulding from the CRT 9 Remove the CRT from the screen 4 2 4 CRT FITTING Reversethe order detailed above 4 2 3 Ensure that the CRT forward end is located in the rubber moulding behind the front panel If the trace rotation control does not ...

Page 19: ...loscope to TR3 collector tag 62 PCll0 ReferenceFig 11 1 6 Set Oscilloscopeto 0 1 volts div and 20 ms dil 1 7 Turn R34 fully anti clockwise 1 8 Adjust R17 to the centre of the range over which a continuous oscillation at 1 MHz approximately is observed on the Test Oscilloscope 1 9 Turn R34 slightly clockwise 1 10 Reset R17 to the centre of the oscillation range 1 11 Repeat 1 7 through 1 9 until the...

Page 20: ...off 1 2 Set VARIABLE fully clockwise 1 3 Set VOL TS DIV to 10 mV 1 4 Set DC GND AC to GND 1 5 Adjust POSITION to align trace with graticule centre line 1 6 PushVARIABLE forXl0gain 1 7 Adjust R642 to centralize trace 1 8 ReleaseVARIABLE for Xl gain 1 9 Repeat 1 5 through 1 8 until no trace movement occurs when operating VARIABLE 1 10 PushVARIABLE forXl0gain 1 11 Turn VARIABLE fully anti clockwise 1...

Page 21: ...lly clockwise 8 13 Repeat 8 8 through 8 11 until a square corner is maintained at the extreme positions of the VAR IABLE control 9 0 To set CH2 input and neutralizing capacities C634 and C636 PC115 9 1 Connect Calibrator to INPUT 2 9 2 Switch CH2 on CHl off 9 3 PressINT TRIG 2 9 4 Turn VARIABLE fully clockwise 9 5 Set VOLTS DIV to 10 mV 9 6 ReleaseVARIABLE for Xl gain 9 7 Set DC GND AC to DC 9 8 S...

Page 22: ...2 1 0 1 1 SWEEP Single Shot adjustment Set Single shot Rl12 PCll0 Switch CHl on CH2 off 1 2 Press INT TRIG 1 1 3 Set DC GND AC to AC 1 4 Connect Signal Generator to INPUl 1 1 5 Set Signal Generator to 50 mV squarewave 1 20 kHz to give 5 divisions display 1 6 Set TIME DIV to 1 ms 1 7 Press AC Trig Mode 1 8 Adjust STABILITY and LEVEL for locked display 1 9 Press SINGLE SHOT 1 10 Turn R 112 slightly ...

Page 23: ...se until a point is reached immediately prior to the squarewavedeterioration 3 13 Set TIME DIV to 511S 3 14 Check for flatness of wavetop 3 15 Repeat3 10 through 3 14 until a squarewave is dis played 3 16 Set TIME DIV to 0 2 J1s 3 17 Adjust C606 for maximum overshoot 3 18 Turn R614 slightly anti clockwise to eliminate the H F oscillation on the trailing edgeof the first overshoot 3 19 Adjust C606 ...

Page 24: ...RIABLE speed 2 18 Connect Marker Generator to INPUT 1 2 19 Set Marker Generator to 100 Jls marker 2 20 Set DC GND AC to DC 2 21 PressREP 2 22 Set VOL TS DIV to 3 div approximately 2 23 PressINT TRIG 1 2 24 PressAC Trig Mode 2 25 Adjust STABILITY and TRIG LEVEL for locked display 2 26 Measure distance D in di isions between two conse cutive markers NOTE Writing speed is given by D Xl0 2 27 Check wr...

Page 25: ...by a sweep NOTE The display should be locked to the input signal Slight adjustment of the STABI L1TY may be necessary 4 14 Turn STABILITY slightly back and forth 4 15 Repeat Ops 4 12 through 4 14 until a locked display is obtained with a continuous eraseand sweepsequence 4 16 Observe display continuous and if not locked turn Rl12 anti clockwise 50 4 17 Repeat Ops 4 13 through 4 16 until a locked d...

Page 26: ... in Chapter 6 Circuit Reference P C Circuit Fig Board No From To 1 50 Trigger Circuit 5 110 60 200 Timebase X Amp Blanking 6 110 201 300 Time Div Switch 7 116 301 400 CRT Circuit 8 401 600 Power Supply 10 111 601 749 Y Amplifier Channel Switching 3 115 750 900 Y Amplifier Trigger Output 4 115 901 999 Attenuator 2 73 1000 Storage Circuit 9 111 ABBREVIATIONS C Carbon Ge Germanium Se Selenium CP Carb...

Page 27: ...0 n CER 250 I 6 C65 281 0155 00 2 22 p PP 500 C66 285 0842 00 15 p PS 1 p 350 C401 290 049800 lm E 25 C67 281 01 54 00 2 12 p PP 500 C402 290 0377 00 1 m E 16 C68 285 0776 00 27 p PS 1 p 350 C403 285 0773 00 lOOn PE 20 400 I C69 285 0915 00 100 n PE 20 100 C404 290 0592 00 100J 1 E 300 C70 285 0773 00 lOOn PE 20 400 C405 290 0540 00 15 J 1 E 450 C71 285 0869 00 47 P PS 2p 350 C406 290 0489 00 15 J...

Page 28: ...0 47 P PS 2p 350 C914 281 0145 00 625 P CT 500 C619 281 0155 00 2 22 P PP 500 C620 281 0734 00 lOOn CER 30 C621 281 0155 00 2 22 P PP 500 C622 285 0854 00 100 P PS 2p 350 C623 281 0710 00 10 n CER 250 C624 290 0494 00 471J E 25 C625 281 0156 00 1 4 6 4 P PP 500 C626 281 0734 00 lOOn CER 30 C627 281 0723 00 1 8 P CER 0 1 P 500 C628 285 0790 00 10 n PE 20 125 1122 C629 285 0788 00 100 n PE 10 125 Cl...

Page 29: ...082 152 0062 01 lN914 1N4148 Si 75 V 083 152 0062 01 lN914 1N4148 Si 75 V 723 084 152 0468 00 150 BAX16 Si 200 mA 085 152 0062 01 1N914 1 N4148 Si 75 V 0301 152 0391 00 50 Rectifier Si 0302 152 0408 00 10 k Rectifier Si 5mA 0303 152 0468 00 150 Rectifier Si 840 0304 152 0510 00 150 Zener Si 5 700 mW I 0305 152 0510 00 150 Zener Si 5 700 mW 0306 152 0352 00 800 Rectifier Si 817 0307 152 0346 00 11 ...

Page 30: ... 152 0344 00 Zener Zener 700mW 700mW D1oo1 152 0062 01 1N914 1N4148 Si 75V D1oo2 152 0062 01 1N914 1N4148 Si 75 V D1oo3 152 0062 01 1N914 1N4148 Si 75V D1004 152 0062 01 1N914 1N4148 Si 75V D1oo5 152 0062 01 1N914 1N4148 Si 75 V D1OO6 152 0062 01 1N914 1N4148 Si 75 V D1OO7 152 0062 01 1N914 1N4148 Si 75 V D1OO8 152 0062 01 1N914 1N4148 Si 75 V D1009 152 0341 00 450 Rectifier Si 500 mA D1011 152 03...

Page 31: ...344 00 Zener Zener 700 mW 700mW 01001 152 0062 01 1N914 1N4148 Si 75V 01002 152 0062 01 1N914 1N4148 Si 75V 01003 152 0062 01 1N914 1N4148 Si 75 V 01004 152 0062 01 1N914 1N4148 Si 75 V 01005 152 0062 01 1N914 1N4148 Si 75 V 01006 152 0062 01 1N914 1N4148 Si 75 V 01007 152 0062 01 1N914 1N4148 Si 75V 01008 152 0062 01 1N914 1N4148 Si 75 V 01009 152 0341 00 450 Rectifier Si 500mA 01011 152 0341 00 ...

Page 32: ......

Page 33: ...1 27 k C 5 125 m R25 317 0272 01 2 7 k C 5 125 m R89 316 0103 01 10 k C 10 250 m R26 317 0273 01 27 k C 5 125 m R90 317 0222 01 2 2 k C 5 125 m 73 R27 317 0153 01 15 k C 5 125 m R91 317 0154 01 150 k C 5 125m R28 317 0393 01 39k C 5 125 m R92 317 010401 100 k C 5 125 m R29 317 0221 01 220 C 5 125m R93 311 0802 00 4 7 k CP 20 250 m 2787 R30 315 0331 00 330 C 5 125 m R94 317 0272 01 2 7 k C 5 125 m ...

Page 34: ...1326 00 250 CV 20 2 R145 321 0877 48 62 k MF 1 125 m R319 250 CV 20 2 R146 317 0272 01 2 7 k C 5 125 m R320 301 0103 01 10 k C 5 500 m 1157 R147 317 0272 01 2 7 k C 5 125 m R321 316 0106 03 10 M C 10 250 m 766 R148 316 0122 01 1 2 k C 10 250 m R322 316 0226 01 22 M C 10 250 m 23 R149 317 0470 01 47 C 5 125 m R323 311 1867 00 250 k CV 20 2 R324 317 0391 01 390 C 5 125 m 755 25 R151 317 0272 01 2 7 ...

Page 35: ...0 C 5 125 m R668 317 0393 01 39 k C 5 125 m R612 317 0103 01 10 k C 5 125 m R669 311 0717 00 220 CP 20 250 m R613 317 0911 01 910 C 5 125 m R670 317 0122 01 1 2 k C 5 125 m R614 311 0717 00 220 CP 20 250 m R671 317 0393 01 39 k C 5 125 m R615 317 0272 01 2 7 k C 5 125 m R672 311 1306 01 100 k CV 20 250 m R616 317 0681 01 680 C 5 125 m R673 315 0470 01 47 C 5 250 m 925 R617 311 0995 00 680 CP 20 25...

Page 36: ...103 01 10 k C 5 125 m R1002 317 0104 01 100 k C 5 125 m R763 321 1296 48 12 k MF 1 125 m R1003 316 0106 03 10M C 10 250 m 5 R764 321 0852 48 36 k MF 1 125 m Rl004 311 0854 00 100 k CV 20 100 m R765 307 0356 00 3 3 k MO 5 5 25 R1005 317 0183 01 18 k C 5 125 m R766 317 0101 01 100 C 5 125 m R1006 317 0273 01 27 k C 5 125 m I R767 317 0101 01 100 C 5 125 m Rl007 317 0102 01 1 k C 5 125 m R768 307 035...

Page 37: ...2 317 0104 01 100 k C 5 125 m Rl066 317 0222 01 2 2 k C 5 125 m I Rl043 317 0204 01 200 k C 5 125 m Rl067 317 0103 01 10 k C 5 125 m Rl044 317 0222 01 2 2 k C 5 125 m Rl068 317 0123 01 12 k C 5 125 m Rl045 317 0184 01 180 k C 5 125 m Rl046 317 0103 01 10 k C 5 125 m r Rl047 317 0103 01 10 k C 5 125 m Rl048 317 0823 01 82 k C 5 125 m Rl049 317 0272 01 2 7 k C 5 125 m CIR PART DESCRIPTION CIR PART D...

Page 38: ...20 Si NPN TR76 151 0317 00 BC109C Si NPN TR77 151 0257 01 BF305 Si NPN TR78 151 0317 00 BC109C Si NPN l TR79 151 0317 00 BC109C Si NPN TR81 151 0257 01 BF305 Si NPN TR82 151 0490 00 FRB750 Ferranti Si NPN 3100 J TR301 151 0372 00 2N5401 Si PNP I TR302 151 0311 00 MJE340 Si NPN TR303 151 0317 00 BC109C Si NPN I TRP304 151 0371 00 Photo transistor Si NPN TR306 151 0490 00 FRB750 Ferranti Si NPN 3137...

Page 39: ...51 0127 02 2N2369 Si NPN TR629 151 0127 02 2N2369 Si NPN I I TR751 151 0127 02 2N2369 Si NPN TR752 151 0257 01 BF305 Si NPN TR753 151 0257 01 BF305 Si NPN TR754 151 018800 2N3906 Si PNP I 2510 TR755 151 0188 00 2N3906 Si PNP TR756 151 0188 00 2N3906 Si PNP TR757 151 0188 00 2N3906 Si PNP I TR1000 151 0317 00 BC109C Si NPN I TR1001 151 0127 02 2N2369 Si NPN TR1002 151 0127 02 2N2369 Si NPN TR1003 1...

Page 40: ...PMENT OUT NORMAL CH 2 oscilloscope OM64 Front Panel BRILLIANCE CD FOCUS ASTIG 0POWER 8 OFF 14 BEAM LOCATE STORE ERASE ENHANCE INTEGRAT V AUTO A CD R I t OFF MAX SINGLE REP SHOT RESET MMUAL TAIG LEVEL STABILITY INE PULL 5 COARSE TRIG MODE 1 TV VARIABLE FIELD TIME DIV EXT TV X mS 2 1 S 2 CAL LINE S Cl c 0 e17 O 1 U 2 S 2 I S 1 DC S 1 S PUSH 2 2 FOR X V GATE OUT OUT CAL 500mVpp GND INT E TRIG PRE AMP...

Page 41: ...3 366 1355 00 Knob Red 14 366 1364 00 Knob Red 15 I 366 1481 00 Knob Red 366 1074 00 Knob Black Tapered Trace Rotation 161 0084 00 Lead c w Socket U KJ Power 730 161 0084 01 Lead c w Socket U S AJ Power I 220 0607 00 Nut Special 16 131 1021 00 Pin PCB Quick ReleaseAmp 134 0102 00 Plug 7 pin Voltage Selector 21 0248 00 Screw set 3 mm Lg 9 13 14 15 I 213 0249 00 Screw set 5 mm 19 7 8 136 0381 02 Soc...

Page 42: ...1 TR82 C301 C302 C309 C401 toC409 C411 toC419 C421 C422 Cl 000 to Cl009 Cl013 to Cl 019 0301 0303 0401 to 0409 0411 to 0419 0307 0421 0422 01001 to 01009 01011 to 01019 01021 to 01026 R301 to R308 R324 R326 R402 R404 to R409 R411 to R415 R417 R418 R422 Rl000 to Rl003 R 1005 to Rl 009 Rl 011 to Rl014 Rl 016 to R1030 Rl032 to Rl038 Rl040 Rl042 to Rl067 TR301 TR303 TR306 TR100l to TR1009 C600 to C609...

Page 43: ...5 00 065 R98 R9 Rl0l Rl02 S62 V61 I Timebase Switch 262 0934 00 074 to 079 081 082 C201 to C207 R126 R127 R129 R202 to R209 R211 to R218 R673 R786 R787 S66 S201 I I Y Amp Cableform 644 0027 02 C614 C623 C755 C756 C757 R633 R652 R672 R673 1 R771 to R779 R781 to R785 TR754 to TR757 S601 S602 S751 Mounted on S603 ...

Page 44: ...wn as 1p8 To aid the reader further in addition to the block Circuit Reference Table in Chapter 5 1 to locate a component in the circuit diagrams a table is provided at the top of each ci uit diagram in which the circuit reference will appear where practicable directly above the component being sought Blue shows the rear track as seen through the board Red the component side track and those compon...

Page 45: ...C H AMPliFIER CONTROLS SWITCHING I 2C 0 t I I SINGLE SHOT AUTO f DC ERASE LH HOLD OFF ERASE ENHANCE i MIXING t BISTABLE GENERATOR CIRCUIT i L r s o L TRIGGER r T E OnTo TRIGGER SWEEP NONSTORE PRE AMPL IFIER GATlNG AMPLIFIER BISTABLE SWEEP ENHANCE DC ERASE rxr PULSE GENERATOR GENERATOR AMPLIFIER 1 SWEEP OUT ro EXT TRIGGER EXT X 4 EXl J C R 1 l PRE AMPLiFIER I i BOOT STRAP X MODE f x v Y T DIODE X O...

Page 46: ...50_ 909 5 6 R901 R9Q3 1O 1k 111k e9G3 C906 4 820 47 3 IOP 2v DIV R90SD C9i3 SOCk 5p C914 6 25 20mV OIV 0 0 0 0 0 0 Cl 0 0 0 CHI 0 9 0 0 t CH2 FIG 0 0 CH I CH2 NOTES 1 8 DENOTES rA G NOS ON PC7 SWITCHES SHOWN IN FULLY ANTI CLOCKWISE POSITION 3 DENOTES C6MPOENTS NOT UNTEO ON PC 73 4 76 1 DeNOTES PC76 EYELETNoI I S 2 S A IO OSO 20 o020mv 50 10 5902 VOLTS Dlvl SWITCH POSITIONS ...

Page 47: ...TR607 TR608 56030 0605 566 0607 0611 5601 TR625 56030 TR624 TR605 TR606 5603b TR614 0608 TR622 TR623 TR603 TR604 TR619 TR621 TR601 0604 L602 5603b TR618 MISC I 5605 566 TO FIG 4 115 41 R643 C6 K 180R C619 R 655 56030 C600 IOn R644 10K On 115 42 560R C61a 47p 2 22p R650 560R TR612 656 R637 R638 2 22p CHI 18K 18K L603 C6 lOOn TR611 11627 220R 119 30 0603 R045 2K4 R646 if IKO R696 12K 0000 R041 0605 ...

Page 48: ...602 FROM rf5 119 32 14V m 17 16 S601 18 lt5 44 t 16 11 17 C616 2 liS 43 S602 l on 119 8 IB 56030 17 119 7 3 I S6030 15 14 CHOP 5603b BLANKINGO P R6 A B2R C611 lIon D J 6 12 R634 XIQ R610 47K is 13 220R R657 R67Q 220R lK2 If 5 18 R635 R642 D c D Ad AA 6BOK POS N 220R lrr IlAL 115 11 115 9 __ P05 N R636 I R652 IM5 I lOOK R667 220R 115 7 R651 IK2 R660 220R I L601 115 3 0 125 1FRQM 1II 40FIG3 FROtolll...

Page 49: ...OT TION liS 57 o C 753 on R764 IOn 36K ES I CIRCUIT SHOWN WITH CH NNELI TRIG SELECTED 2 76 45 DENOTES PC 80 RD No EYELET OR TERMINAL 3 _ DENOTES COMPONENTS NOT MOUNTED ON PC BOARD 40 COMMON 12V FROM 115 26 FIG3 CH NNELI TRIGGER OUTPUT R788 1 C7SS rjl 16 45 5 300VFROM 111 66fluiD 119 15 1 4V FROM Ill 55 I FIGIO I __I 1 4 R772 l FROM J 115 29 FIG3 145 7 TOY2 FIG8 CHANNEL 2 TRIGGER C752 OUTPUT On ...

Page 50: ...73 I I ISK I 1 I R774 I ISKl 6 S7SIb TR 7SS TR7S6 TR7S7 lNT TRIG OUT IN AOI L02 7 8 9 I 2 3 ttttt c J ICL J OCL QO Cfl O 0 1011124 S 6 FROM 116 7 t 9 S R779 10K t R 782 220R C7S7 1 IBOp JUNC TlON OF D 74 075 FIG6 R787 6K8 JUNCTION OF D 78 D79 FIG6 R776 IK 5 y AMPLIFIER OUTPUT TRIGGER PRE AMPLIFIER CIRCUIT FIG 4 ...

Page 51: ...a EXT TRIG EXT X 110 1 R8 2K2 3 r S3b 0 4 6 5 _S3a _ I 9 I RI4 Rill 2K2 2K2 R21 C7 3K3 3pO C8 110 62 3pO TR3 FROM PC 119 10 I K8 FIG 4 110 3 R42 FROM PC1I9 9 IK8 FIG 4 4 EXT I I OR I I I I I 3 OUT IN H 0 TV Sla FIELD 0 TV Sib LINE 0 HF Sic 0 52 H 0 DC S3G 0 AC SJb INT 0 EXT 54 FRONT PANEL MARKING SWITCH REF 11176 R20 220R RI7 470R SET AUTO ...

Page 52: ...R26 27K R28 39K TR4 R23 IK8 TRIG PULSE TO TIMEBASE FIG6 CI6 TV FIELD I NORM lOO Io ___ 2 TV LINE NORM 4 6 Slo 4 TV FIELD NOTES I DENOTES COMPONENTS NOT MOUNTED ON PC BOARD 2 110 4 DENOTES P C BOARD EYELET OR TERMINAL NO ...

Page 53: ... 11 i 110 23 R02 61 R7S I I 10K 4Pl56K bBOR L _ JTlME DIV SW JpO FIG 7 Rn IOj l 12V L lOOK R66 110 21 T R 71 2V 1k D67 D6e Re7 n f CHOP 560K ITR 62 ANKING 11019 7 071 100R S60Ja 1 NJ C7 RB2 rR 1 ft R93 r 3 110 10 FROMDI 6BR 4K7 TIME DIV JKJ TRIG SET SW I lOOn GATE I GATE FIG 7 L ______ CCT FIGS OUT I POn LL ITIME DIV I 5650 0 2 RBJ RBS SW BEAM 360R JK9 I FIG7 I LOCATE 11 I R6B I I R94 IKIS R7J 2K7...

Page 54: ...0 075 TR78 56030 076 L61 5610 S6Sb 077 TR82 065 S62b 072 Sl004d 5620 100V 145 1 IIQV 084 FIG 10 110 63 TO 110 26 110 60 l ofl3 I I RI43 I IKS FROM I MOUNTED 51 ___ N C 6 __ J N D l ON PCI14 I I I I 110 14 RI14 114 3 I t C65 FROM y PRE AMP FIG C78 oon 4V 110 37 FROM 111 48 FIGIO 1 6 16 I 2K7I 081 I I I ____ J 082 1 r CH I _ _ 1 SET SINGLE SHOT RII2 22K RI30 470R TO 069 RI06 22K TRACE LENGTH 6 0 13 ...

Page 55: ... ll 10n TIME I DIV SWITCH FIG 7 64 212 213 214 215 206 207 209 208 TIME IOI L WI S H POSI 9N2 SWITCH SHOWN IN FULLY ANTI CLOCKWISE PO ITION C205Jr I 80p R211 6M04 116 17 NOTE I DENOTES COMPONENTS NOT MOUNTED ON PC 11 2 110 15 DENOTES PC BOARO EYELET OR TERMINAL No ...

Page 56: ...PLY FIG IO R306 10K 14V FROM POWER SUPPLY FIG IO 111 13 113 1 111 52 6 R326 120K 4 51003 5 INTEGRATE SEE FIG 9 R302 470R 111 31 C301 lOOn R31S 7K 123 8 0308 R332 C307 IOOV FROM POWER SUPPLY FIG IO IK2 InO TR307 NOTES 1 OENOTE5 COMPONENTS NOT MOUNTED ON P C BOARD 2 123 11 DENOTES P C BOARDI EYELET OR TERMINALNo C309 100 1 II II II _J tJ R316 C308 IOn 1M2 0306 123 7 IJ O 110 30 I R328 C R T CIRCUIT ...

Page 57: ...6 V301 L301 TO f SK301 PL301 FIG 4 I I R309 I 3M3 L I R310 I 3M3 I l R311 y 3 w L R312 1MB 123 11 R313 3M3 1 L R314 2M7 R320 l 10K 123 16 I l R334 123 14 l I l t FROM 145 3 IFI XI I Fe J lS I R321 10M h h 6V3ac FROM POWERSUPPLY FIG IO Y2_ 145 R 4 300V FIGIO 16V DC FROM POWER SUPPLY FIG IO ...

Page 58: ...RI003 RI007 RI009 I I 113 B IOM IKO 10K STORE L SET V 1 LEVEL JJ I I ERASE 510040 ENHANCE LEVEL RI004 lOOK 51002 2 110 33 RI002 111 37 ON lOOK RI005 IBK CI003 150n RI006 RIOOB 27K 10K 01003 R 1028 15K 1I1 IB 113 4 R 106B 12K 250ms I I Jk S ORE 51001 I 5 113 5 6 RI015 RI017 47K 180K OFF CI007 51002 4 200n ON RIOIB 56K RI016 10K 01005 14V TRI003 CI006 lOOp RI019 lOOK 01006 RI034 Ill 52 33K 6V2 111 2...

Page 59: ... L 3QQV DI018 CI013 33J TRI006 DIOII DI014 150V DI015 RI046 10K RI038 RI044 270K 2K2 RI065 22K RI062 47K GEOM RI066 2K2 FOR TUBE CONNECTIONS SEE FIG 6 TO SI004d RI048 FIG 6 82K SI004c AUTO ERASE 111 20 RI045 180K RI042 lOOK 111 65 6 111 64 2K7 TRI007 v l V 113 2 113 3 2 INTEGRATE 51003 01 SEE FIG B CI015 DI021 I ov 2 00 TL r 14V TRI009 RI049 lQV 12 5VFROM 111 11 FIGIO R 1050 150K 51002 10 40 51001...

Page 60: ... LP401 0417 0403 D40S LP402 LP403 T401 260V Ill I R406 IKB C40S C406 OV IS S 111 33 16SV 111 2 1 VOLTAGE SELECTOR FROM REAR OV III S 100V 111 3 OV IIi 8 III S9 100V 111 10 13VS 111 4 111 62 111 63 OV I 13VS 111 9 I I I I I I 6V3 I OCRT I HEATERS I OV I FIG C412 IOu R400 47R NOTES I DENOTES COIlAPONENTS NOT MOUNTED ON PC BOARD 2 111 9 DENOTES PC BOARD EYELET OP TERMINAL No ...

Page 61: ...G B Ill 56 0 TO 123 3 FIG B 100 Ill 44 120V TO 110 27 FIG 6 IOOV TO PCIIO CRT CCT FIG B t IOOV TO PCIII STORAGE CCT FIG 9 R41B 11I 16V T0110 63 FIG 6 IOOV TOPCIII CRT CCT FIG B 12 5V TO 115 4 FIG 3 111 43 I 47R C419 ImO C421 C422 ImO ImO ImO R414 R417 33 R 22R R422 0414 270R R407 C413 Ill 51 2K2 470p 0416 R404 0415 R40B R411 4K7 IBK C423 10K IOOn I lC402 C401 9RI ImO T Tlmo I 111 7 POWER SUPPLY FI...

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