Tektronix M 531 Instruction Manual Download Page 47 | Manualshive

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Parts List— Type M

REAR

REF

NO

PART NO

SERIAL/MODEL NO

o

-

V

DESCRIPTION

EFF

DISC

1

131 001700

i

CONNECTOR, chassis mounted, 16 contact, male

211 0008 00

2

SCREW, 4 40 x '/„ inch BHS

210 0004 00

1

LOCKWASHER, internal, # 4

210 0201 00

1

LUG, solder, SE4

210 0406 00

2

NUT, hex, 4-40 x J/u inch

2

384 051000

1

ROD, plug-in securing

•

rod includes:

354 0025 00

1

RING, retaining, #18 securing

3

387-0529-00

1

PLATE, back

6-8

http://m anom an.sqhill.com

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Summary of Contents for M 531

Page 1: ...I N S T R U C T IO N M A N L J I _ t y p e M PLUG IN UNIT Tektronix Inc S W Millikan Way P O Box 500 Beaverton Oregon Phone Ml 4 01 61 070 295 Cables Tektroni 1263 http manoman sqhill com...

Page 2: ...field there fore all requests for repairs ond replace ment parts should be directed to the Tek tronix Field Office or Representative in your area This procedure will assure you the fastest possible se...

Page 3: ...ting Instructions Circuit Description Maintenance Calibration Ports List and Diagrams A list of abbreviations and symbols used in this manual will be found on page 6 1 Change information if any is loc...

Page 4: ...G A INA D J NO O M I M I O AC V A f OAIN rOimON IN V D M l NOIM DC AC PO U IM W G A IN A G A IN NO 0 1f M I O 47 ponnoN AC V A I O AIN INV N O M C i r D O k A f o s if ION k AC V A f O AIN OC AC CHO r...

Page 5: ...ely 1 me divided by the number of channels in use making it possible to view from one to four simultaneous transients The number of dis played waveforms depends on the setting of the MODE switches and...

Page 6: ...rity of any channel selected can be inverted for comparison of signals 180 out of phase Input Characteristics Approximate 1 megohm 1 paralleled by approximately 47 pf Maximum Allowable Combined DC and...

Page 7: ...al stop ond is therefore con tinuously variable It does how ever hove a detent stop for the CALIB calibrated position A SIGNAL O U T Output signal from channel A Amplitude is 2 volts for each cm of di...

Page 8: ...at the M Unit switches between channels A and C only Each channel conducts for about 1 fisec and then is cut off while the other channel conducts for an equal time see Fig 2 2b Chopping rate for each...

Page 9: ...ontrol is set to the CALIB position Serious errors in display measurements may result if the setting of this control is unintentionally moved away from this position The range of the VAR GAIN control...

Page 10: ...h is set to ALTERNATE In this mode of operation the signals applied to the indi vidual channels can be either related or unrelated in fre quency The oscilloscope Triggering Level control must be set a...

Page 11: ...ting the MODE switch position for your particular application proceed as follows 1 Display the waveform over as large a portion vertically of the crt as possible by adjusting the appropriate VOLTS CM...

Page 12: ...in volts Deflection in cm VOLTS CM setting 3 To calculate the true sensitivity at any setting of the VOLTS CM switch multiply the VOLTS CM switch setting by the sensitivity conversion factor obtained...

Page 13: ...p rate by a factor of 5 and then measure the distance between waveforms each centimeter will represent 8 40 t 5 of a cycle By doing this you can measure phase angles up to 80 more accurately When prep...

Page 14: ...ent to about a 20 millivolt peak to peak input signal Noise level and dc drive are tolerable if a sensitivity less than 500 yuvolts cm is used However reliable triggering cannot be obtained unless the...

Page 15: ...ronounced For high frequency signals the impedance of the capaci tors is low compared to the resistance of the circuit and the attenuators become capacitive voltage dividers For these frequencies the...

Page 16: ...stor under no signal conditions is the same When the control is moved to either end a change of 2 ma per side occurs This current change re sults in a positioning voltage range of approximately 300 mi...

Page 17: ...LEVEL control is already adjusted for these potentials the dc level at the A SIGNAL OUT connector is still close to ground SWITCHING CIRCUIT Ring Counter The Ring Counter consists of Q6315 Q6325 Q633...

Page 18: ...6347 It is these capacitors that provide the means for coupling the pulse from the on transistor to the base of the following transistor in a sequential order If a MODE switch is set to OFF during mul...

Page 19: ...f When the MODE switch for channel B is set to OFF approximately 0 5 ma matrix current flows through R6320 When channel C and D MODE switches are set to OFF total current flowing from R6320 R6330 and...

Page 20: ...ce operation when the ALTERNATE CHOPPED switch is set to CHOPPED the Chopped Mode Blanking Amplifier Q6364 amplifies and inverts the back swing signal The Q6364 collector circuit during this mode of o...

Page 21: ...r to fix the voltages Cur rent 15 ma is supplied to the 38 volt source S N 101 824 however This current is conveniently obtained by the dif ference in heater current drawn by the Nuvistors 135 ma and...

Page 22: ...gle wafers on wafer type switches are not normally replaced If a wafer is defective the entire switch should be replaced Some switches may be ordered from the fac tory either unwired or wired with com...

Page 23: ...esoldering the lead apply enough heat to make the solder flow freely In soldering to metal terminals interconnecting plug pins on a tube or a transistor socket a similar technique should be employed P...

Page 24: ...ion This portion of the manual will aid you in troubleshooting the M Unit in the event that trouble develops When troubleshooting correlate the information in this section with information in other se...

Page 25: ...Maintenance Type M Fig 4 7 Right side view and loft rear portion of tho M Unit showing tho lototion of all tost paints 4 4 http manoman sqhill com...

Page 26: ...ting or calibrating the M Unit use the associated information to make selection easier CAUTION Do not substitute tubes or Nuvistors when the M Unit is operating as this w ill open the filament series...

Page 27: ...tors of Q5324 Q5334 and the control grids of V5364 V5374 Check for open diode D5345 D5346 D5347 or D5348 b If trace appears when shorting test points 1 and 3 together short together the bases of Q5324...

Page 28: ...lection on the crt no longer corres ponds to the calibrated value and this condition affects all channels a change in gain characteristics of the Output Amplifier is indicated If tubes are causing the...

Page 29: ...pply a fast rise squarewave from a low impedance signal generator such as a Tektronix Type 105 Square Wave Generator to the input connector If it is nec essary to attenuate the signal use a resistive...

Page 30: ...falling on the coils Be especially careful when soldering around any of the peaking coils 17 Switching Transients Visible in Chopped Mode If the switching transients are visible during multi trace cho...

Page 31: ...tional symptoms revealed by performing further steps will frequently simplify the task of locating the trouble Test equipment used in a particular step should be left connected at the end of that ste...

Page 32: ...alling the M Unit in the oscilloscope make a careful visual inspection of the wire dress This is par ticularly important if any soldering has been done to the unit Then make the resistance to ground c...

Page 33: ...g should be 13 6 volts 2 12 6 volts 5 Connect the VOM between test point 5 and ground The reading should be 6 3 volts 5 Disconnect the VOM 2 DC Balance All Channels Set the channel A MODE switch to AC...

Page 34: ...t Cathode Follower V5323 of each channel for excessive grid current under no signal conditions To make the check use three short patch cords 6 long to connect the four inputs together and use a fourth...

Page 35: ...check for proper vertical deflection at each position of the VOLTS CM switch Use the information in Table 5 2 as o convenient guide Amplitude tolerance for each set ting should be within 6 VOLTS CM at...

Page 36: ...by adjusting the Output Amplitude control on the square wave generator each time the VOLTS CM switch is moved from one position to the next In the 2 VOLTS CM switch position it will be necessary to re...

Page 37: ...to position the traces to coincide Connect another short patch cord between the A SIGNAL OUT connector and the channel B input connector If the channel B trace is displaced from the A trace care fully...

Page 38: ...on of the waveform The time interval should not exceed 17 nano seconds 17 X 10 9 seconds Repeat this step for each of the other channels When checking each channel individually set the appropriate MOD...

Page 39: ...points shown in Fig 5 6 Use the Type 107 Approximate Amplitude control and if necessary the channel A VAR GAIN control to obtain exactly two centimeters of deflection for the channel B waveform Measu...

Page 40: ...counter sunk p pico or 10 1 2 dia diameter PHS pan head steel div division piv peak inverse voltage EMC electrolytic metal cased piste plastic EMT electroyltic metal tubular PMC paper metal cased ext...

Page 41: ...a c i I M IO 4 T p f A f IO N A t O U T I OAtN ADJ PC 41 eo B 5 V A I OA IN fO IM lO N i i M a t o I s GAIN AOJ i 6 d M o a i n p o r t i o n v T l l rcAu V M OAiH T E K T R O N IX IN C J 5 P i P O tt...

Page 42: ...nt 5 366 0125 00 1 KNOB plug in securing 210 0894 00 1 WASHER polyethylene 190 ID x 7 OD x y32 inch 6 366 0085 00 101 4129 4 KNOB small black VAR GAIN 366 0189 00 4130 4 KNOB small red VAR GAIN 7 334...

Page 43: ...RIGHT SIDE Parts List Type M http manoman sqhill com...

Page 44: ...ming 2 56 x 4 inch PHS phillips 8 210 0201 00 2 LUG solder SE4 213 0044 00 2 SCREW thread cutting 5 32x3 4 inch PHS phillips 9 179 0567 00 101 2759 1 CABLE harness channel A 179 0725 00 2760 1 CABLE h...

Page 45: ...Parts List Type M LEFT SIDE 0 0 0 IP 6 6 http manoman sqhill com...

Page 46: ...ps 210 0405 00 X3270 5 NUT hex 2 56 x 3 1 4 inch 210 0259 00 X3270 1 LUG solder 2 7 262 0435 00 4 SWITCH wired vertical Includes 406 0728 00 1 BRACKET attenuator switch assembly 211 0023 00 1 SCREW 4...

Page 47: ...s mounted 16 contact male 211 0008 00 2 SCREW 4 40 x inch BHS 210 0004 00 1 LOCKWASHER internal 4 210 0201 00 1 LUG solder SE4 210 0406 00 2 NUT hex 4 40 x J u inch 2 384 051000 1 ROD plug in securing...

Page 48: ...N O S E R IA L M O D E L N O Q T Y DESCRIPTION EFF DISC 1 103 0033 00 X3120 4 ADAPTER BNC to binding post 2 012 0031 00 101 5598 1 CORD patch 012 0087 00 5599 1 CORD patch 3 012 0091 00 X5599 1 CORD p...

Page 49: ...281 027 7 3 i if Tub Var C5313E A B C D 283 539 250 i if Mica 500 v 10 C5317 A B C D 281 060 2 8 i if Cer Var C5318 A B C D 283 002 01 if Discap 500 v C5322 A B C D 283 005 01 if Discap 250 v C5325 A...

Page 50: ...1 577 14 i if Cer 500 v 5 3480 up C6356 281 504 10 i tf Cer 500 v 10 X3480 up C6364 281 536 1000 i if Cer 500 v 10 Diodes D5324 A B C D 152 008 T12G Germanium 101 9499 D5324A B C D 152 0185 00 Silicon...

Page 51: ...stors Resistors are fixed composition 10 unless otherwise indicated R5308C A B C D 309 381 600k Vsw Prec 1 R5308E A B C D 309 382 666 6 k Vi w Prec 1 R5309C A B C D 309 288 800 k VlW Prec 1 R5309E A B...

Page 52: ...w 5 2760 up R5351 301 152 1 5 k Vs W 5 R5352 301 131 130 0 Vs w 5 101 2759X R5353 315 563 56 k A w 5 X2760 up R5354 311 066 500 0 2 w Var Output DS Level 101 2759 R5354 311 153 10k Var 2760 up R5355...

Page 53: ...rec 1 R6314 318 009 10 1 k Vs W Prec 1 R6315 318 009 10 1 k Vs W Prec 1 R6316 301 681 680 0 A w 5 R6317 301 202 2k A w 5 R6318 308 212 10k 3 w WW R6319 316 470 47 o A w R6320 315 103 10k A w 5 101 347...

Page 54: ...Prec 1 825 3479 R6360 309 234 154k Vi W Prec 1 3480 up R6361 301 102 1 k Vi w 5 101 649 R6361 301 331 330 0 A w 5 650 824 R6361 301 102 1 k A w 5 825 up R6362 301 153 15k A w 5 X825 up R6363 301 474...

Page 55: ...101 9499 9500 up 101 824 Q6364 151 062 N101 Q6364 151 0224 00 2N3692 825 9499 9500 up Switches Unwired Wired SW5300 A B C D 260 401 262 434 Rotary MODE 101 3479 SW5300 A B C D 260 401 262 572 Rotary...

Page 56: ..._____________ CHANNEL A __________ SIGNAL OUTPUT AMPLIFIER 1 t y p e m p l u g i n u n i t AI...

Page 57: ...74 O U T P U T CATHODE F O L L O W E R V5383 r n l R IN G COUWTER MODE SW 1 CHANNEL e 0 6 3 2 6 S W IT C H IMG B O Q 6 3 5 0 CHOPPED MODE B L AM KING A M P L IF IE R 0636 4 3 C HA N NEL I Q 633 5 1 1...

Page 58: ...tt T Y P IC A L SW ITC HED ATTENUATOR A M D A M P L IF IE R 4 REQ D J U OUTPUT A M P L IF IE R 5 W 5 3 0 0 4 C H A N N E L S W I T C H E D A M P L I F I E R T Y P E M P L l l G l N U N I T...

Page 59: ...L S OF M O DE S W IT C H E S SE E C H A N N E L SW ITCHING OUTPUT A M P L IF IE R C S S IO A J _ C 5 3 I O B _ R 5 3 I O c _ C 5 3 0 C s e j W a r SEE p A flT S L IS T FOp E A U U fcg VALUERS AND S N...

Page 60: ...L R6310 MOK j 1 1 1 i 1 1 1 i 1 1 1 1 R S320 IO K i 1 i R 63 2 9 1 4 7 1 R 6 3 3 0 IO K s R 6 3 3 9 4 7 R6360 1200K CRS340 IO K D6360 T I2 G C R 365 2 2 K GATING P U L S E TO C H A N N E L A GATING P...

Page 61: ...READIMGS o b t a in e d UND ER T H E FO LLO W ING C O N D IT IO N S T E S T O S C IL L O S C O P E T IM E C M S E E W A V E F O R M S V O L T S C M S E E W A V E F O R M S M U N IT VO LTAG ES M O DE...

Page 62: ...mediately into printed manuals Hence your manual may contain new change information on following pages A single change may affect several sections Sections of the manual are often printed at different...

Page 63: ...TYPE M TENT SN 93 0 ELECTRICAL PARTS LIST CORRECTION CHANGE TO D5391 152 0280 00 1N753A 0 4 v 6 2 V 5 Mil 191 468...

Page 64: ...TYPE M TENT SN 9660 CHANGE TO Q5344A B ELECTRICAL PARTS LIST CORRECTION 151 0232 00 Silicon Dual M15 594 170...

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