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NOTES

Summary of Contents for TYPE Z PLIG-IN

Page 1: ...1 1 1S rR U O T IO I N I S 70V 7 M A N U A L IN Tektronix Inc S W M illikan W ay P O Box 500 Beaverton Oregon Phone Ml 4 0161 Cables Tektronix 070 251...

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

Page 3: ...CONTENTS Warranty Section 1 Specifications Section 2 Operating Instructions Section 3 Circuit Description Section 4 Maintenance Section 5 Calibration Section 6 Parts List and Diagrams...

Page 4: ...G IN UNIT J COMPARISON VOLTAGE v A V c f tOQV tJS i 111 MH m i J E8 24 pf VOLTS CM V A R ATTEN A V c ONLY TEST S D FF DIFF BAI V c j VAR ATTEN BALANCE GAIN adjust POSITION VOLTS CM tflM M AftOt SERIAL...

Page 5: ...less than 50 mv in amplitude on 100 volt common mode signals As a calibrated differential comparator the Z Unit has an effective screen height of 2000 cm at maximum sensi tivity Within the dynamic ra...

Page 6: ...lts comparison voltage 0 005 Maximum resolution 5millivolfs per millimeter Transient Response and Permissible Signal Volt age Rate of Change Rate of rise 1 volt per 7 nsec maximum If this rate is exce...

Page 7: ...lance If not repeat step 1 4 Gain The gain adjustment should be checked periodically to assure correct vertical deflection factors It should also be checked when the Z Unit is transferred from one osc...

Page 8: ...lifier input AC DC Determines whether input sig nals are dc coupled or ac coupled B INPUT Connector for coupl ing input dc or ac voltages to p ream p lifier Range Selects the ap prop ri ate compariso...

Page 9: ...Preamplifier Operation When the Z Unit is used for conventional preamplifier operation the Mode switch should be placed in either the A ONLY or the B ONLY position Input signals should then be connec...

Page 10: ...to the other input of the unit Differential operation between the two inputs is obtained when the Mode switch is in the A B DIFF position Maximum common mode rejection is obtained when both input at t...

Page 11: ...ion 5 Either input signal alone may be viewed without switch ing back to the A ONLY or B ONLY positions of the Mode switch by depressing the PUSH TO DISCONNECT SIGNAL button of the other input channel...

Page 12: ...Amplitude AC Signal Measurements High amplitude ac signals subject to the rise rate and fall rate limitations listed in the Specifications section can also be measured with the Z Unit at maximum sensi...

Page 13: ...return the trace to the reference level obtained in step 2 In this example the Helidial should end up near a reading of 10 volts 6 Divide the Helidial reading into 100 to obtain the at tenuation fact...

Page 14: ...OVERALL G A IN 2 PUSH PULL I OUTPUT l I l Ci I Fig 3 1 Type Z Plug In Unit block diagram 3 0...

Page 15: ...iagram located near the rear of the manual and the block diagram of Fig 3 1 during the following discussion DETAILED CIRCUIT DESCRIPTION Comparison Voltage Regulator Regulation of both the and compari...

Page 16: ...e 150 volt supply A decrease in emitter resistance would require a greater current to establish the same fixed drop Hence R7619 is the current control for Q7618 the constant current source The collect...

Page 17: ...st ment of R7619 will result in equal voltages at the cathodes of V7634 and V8634 for all positions of the VAR ATTEN controls As in the Input Cathode Follower stage the screen volt age for the Differe...

Page 18: ...NOTES Type Z...

Page 19: ...on of the switch con tact may be destroyed Turret Attenuators To remove or to replace a component inside one of the VOLTS CM turret attenuators the following instructions are given 1 To remove the tur...

Page 20: ...moved or replaced the complete switch can be removed as a unit the same as a conventional rotary switch When ordering a replacement switch refer to the Parts List for the wired switch part number Cer...

Page 21: ...in the event that trouble develops During troubleshooting work the information contained in this section should be correlated with information in other sections of the manual No attempt is made to gi...

Page 22: ...to A Vc Set the Polar ity switch to the Range switch to 1 V the Helidial control to 0 00 and the POSITION control to midscale Set the oscilloscope triggering controls to produce a stable display Rota...

Page 23: ...set at 1 V If either the 10 V or 1 V ranges are incorrect check the Range switch contacts and rotors the precision attenuators and the setting of R7689 CAL 5 adjustment If voltages obtained on both t...

Page 24: ...NOTES Type Z...

Page 25: ...he above frequency range 4 Precision dc voltmeter Required specifications are accuracy of 0 05 or better resolution of 50 volts or less must be of the nulling type with infinite impedance at null If a...

Page 26: ...e Fig 5 1 The drops must be Fig 5 1 Location of components and test points w here some of the step 1 voltage measurem ents are made PIN 7 IN TERCO N N ECTIN G FILAM EN T AND R8691 PLUG Fig 5 2 Another...

Page 27: ...back to the vertical system electrical center position established in step 2 a Remove the jumper Fig 5 4 shows all internal adjustments not accessible from the front of the unit 3 Output Amplifier Bal...

Page 28: ...ed 1 mm To check the amplitude free run the sweep at 20 millisec cm and observe the width of the trace It should not exceed 1 5 mm amplitude of tilt and square wave together After com pleting this che...

Page 29: ...uare wave generator frequency to 1 kc and adjust the generator output amplitude for approximately 3 5 cm de flection on the crt Adjust the SERIES trimmer for the most nearly square corner on the leadi...

Page 30: ...Unit 20 mm or more should be obtained with the sine wave generator set at 10 me Disconnect the generator from the B input connector and apply the signal to the A input connector Set the Mode switch t...

Page 31: ...ading should not be further than 2 minor division which is 5 millivolts from the 10 000 position Disconnect the voltmeter remove the plug in extension and insert the Z Unit directly into the oscillosc...

Page 32: ...NOTES...

Page 33: ...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 34: ...M PARATO R 1 2 0 0 0 CM D Y N A M IC SCALE LEN GTH COMPARISON VOLTAGE v V c ________________ VOLTS CM A TTEN UATION VAR AT1EN ONLY G A IN AD JU ST VAR ATTEN BALANCE VOLTS CM ATTENUATION POSITION SERIA...

Page 35: ...sembly 3 200 0114 00 2 CAP black 4 333 0575 00 1 PANEL front 387 0225 00 1 PLATE front subpanel 5 V i6 x6 3 4 inches 5 331 0003 00 1 DIAL 6 358 0010 00 2 BUSHING alum 3 8 32 x Vu inch 210 0013 00 2 LO...

Page 36: ...0 Parts List Type Z RIGHT SIDE 0 6 4...

Page 37: ...cutting 5 32 x 3 6 PHS phillips slot 8 136 0015 00 4 SOCKET STM9G Mounting Hardware For Each not included 213 0044 00 2 SCREW thread cutting 5 32 x 3 1 8 PHS phillips slot 9 136 0071 00 3 SOCKET 7 pin...

Page 38: ...Parts List Type Z LEFT SIDE 6 6...

Page 39: ...ack black nylon 210 0413 00 1 NUT hex brass 3 8 32 x V2 inch 210 0840 00 1 WASHER steel 390 ID x 6 inch OD 210 0012 00 1 LOCKWASHER pot internal 3 s x y2 inch 210 0406 00 3 NUT hex brass 4 4 0 x3 18 i...

Page 40: ...PTION 260 5169 5469 5469 1 1 1 2 2 1 2 2 2 5 5 2 1 CABLE harness CABLE harness CABLE harness NUT hex brass 3 8 32 x y2 inch WASHER steel 390 ID x inch OD BRACKET pot iy 8 x 2 5 8 x V 2 inch Mounting H...

Page 41: ...wired VOLTS CM CHANNEL A switch includes BODY wired turret BODY wired turret body includes CAP end BODY capacitor barrel BODY capacitor barrel SPRING extension CARRIER detent assembly mounting hardwar...

Page 42: ...9 00 101 3563 1 PLATE turret contact assembly 387 0690 00 3564 1 PLATE turret contact assembly mounting hardware not included w plate 211 0007 00 2 SCREW 4 40 x y 1 6 inch BHS 210 0003 00 2 LOCKWASHER...

Page 43: ...high PLATE rear 5l y 6x 6 n 32 inches Mounting Hardware not included SCREW 8 32 x V2 inch RHS phillips slot ROD securing steel 3 u x 10y2inches threaded 10 24 one end rod includes RING retaining secu...

Page 44: ...NOTES...

Page 45: ...pf Cer Var 281 007 t Note C7600 and C8600 matched within 1 each other Furnished as a unit Diodes D7621t 105Z10 Selected 153 003 D7635 140Z10 Selected Use 153 006 D7675 RT 6 152 016 D7686 1N753 152 034...

Page 46: ...omp 5 301 221 R7649 33 k 1 w Fixed Comp 5 303 333 R7650 X770 up 5 6 k y2 w Fixed Comp 5 301 562 R7652 10 meg y2w Fixed Prec 1 309 095 R7653 2 x 500 k Var Vert Position 311 152 R7655 101 383 100 k y2 w...

Page 47: ...xed Comp 5 301 221 R8652 10 meg y2w Fixed Prec 1 309 095 R8655 101 383 100 k y2w Fixed Prec 1 309 045 R8655 384 up 100 k y2w Fixed Prec 1 Use 323 385 R8656 101 383 143 k 1 w Fixed Prec 1 310 088 R8656...

Page 48: ...2N1302 151 040 Q8674 2510 up RT5204 151 058 Electron Tubes V7613T 6AK5 Selected 157 063 V7618 6DJ8 154 187 V7623 12AT7 154 039 V7634J 8426 Selected use 157 038 V7663 12AT7 154 039 V7689 OG3 Selected 1...

Page 49: ...214 084 C412C Adjusting Slug 214 084 C412E 100 pf Cer 500 v 281 530 C413A Selected Nominal Value 3 3 pf 281 534 C413B Adjusting Slug 214 084 C413Et Adjusting Slug 214 084 C413E 200 pf Mica 500 v 10 2...

Page 50: ...Prec 1 309 143 R411E 52 6 k Vs w Prec 1 318 007 R412C 980 k V1 W Prec 1 309 277 R412E 20 4 k V sW Prec 1 318 033 R413C 990 k W Prec 1 309 145 R413E 10 1 k Vs W Prec 1 318 009 R414C 995 k y2w Prec 1 30...

Page 51: ...it and component improvements to our instruments as soon as they are developed and tested Sometimes due to printing and shipping require ments we can t get these changes immediately into printed manua...

Page 52: ......

Page 53: ...CHANGE the 1st paragraph following the Z Unit front panel control settings to read as follows Check to see that the COMPARISON VOLTAGE Helidial reads exactly zero when the control is rotated fully co...

Page 54: ...10 PARTS LIST CORRECTION CHANGE TO Q7618 151 0190 00 2N39C Q7672 151 0190 00 2N390 Q767 151 0188 00 2N3906 Q8618 151 0190 00 2N390 Q8638 151 0190 00 2N39CA Q8672 151 0190 00 2N3904 Q867 151 0190 00 2N...

Page 55: ...TYPE Z TENT SN 6970 ELECTRICAL PARTS LIST CORRECTION CHANGE TO Q76l8 1 5 1 0103 00 2N2219 Q86l8 1 5 1 0103 00 2N2219 M13 775 568...

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