background image

Summary of Contents for 7A16A

Page 1: ...INSTRUCTION MANUAL 7A16A AMPL IFIER Serial Number Tektronix Inc P O Box 500 Beaverton Oregon 97005 Phone 644 0161 Cables Tektronix 070 1378 00 Scans bv Outsource Options 772 ...

Page 2: ...e done as follows 1 Typed text pages are typically scanned in black and white at 300 dpi 2 Photo pages are typically scanned in gray scale mode at 600 dpi 3 Schematic diagram pages are typically scanned in black and white at 600 dpi unless the original manual had colored high lighting as is the case for some 70 s vintage Tektronix manuals If you purchased this manual from us typically through our ...

Page 3: ...astest possible service Please include the instrument Type Number or Part Number and Serial Number with all requests for parts or service Specifications and price change privileges reserved Copyright 1972 by Tektronix Inc Beaverton Oregon Printed in the United States of America All rights reserved Contents of this publication may not be reproduced in any form without permission of Tektronix Inc U ...

Page 4: ...SECTION 4 MAINTENANCE Preventive Maintenance 4 1 Troubleshooting 4 1 Corrective Maintenance 4 3 SECTION 5 CALIBRATION Performance Check 5 1 Test Equipment Required 5 1 Short Form Procedure 5 2 Calibration Procedure 5 3 Balance 5 4 Gain 5 4 Compensation 5 5 Bandwidth and Risetime 5 6 SECTION 6 ELECTRICAL PARTS LIST Abbreviations and Symbols Parts Ordering Information SECTION 7 DIAGRAMS AND CIRCUIT ...

Page 5: ...ll IMQ INPUT 20Pf tf I Fig 1 1 7A16A Amplifier Plug in Scam bv Olltsoll c Options ArtekMedia Digitally signed by ArtekMedia DN cn ArtekMedia o ArtekMedia com ou email manuals ArtekMedia com c US Date 2008 11 16 17 47 24 06 00 ...

Page 6: ...put Voltage DC Coupled AC Coupled TABLE 1 1 ELECTRICAL Performance Requirements 5 mV div to 5 V div 10 steps in a 1 2 5 sequence Within 2 of indicated deflection factor with GAIN adjusted at 10 mV div Continuously variable between calibrated steps extends deflection factor to at least 12 5 V div With 7400 Series With 7500 Series 60 MHz 90 MHz With 7700 Series With 7900 Series 150 MHz 225 MHz 10 Hz...

Page 7: ...NVIRONMENTAL CHARACTERISTICS Refer to the specifications for the associated oscilloscope Size Weight 1 2 Supplemental Information 1 Mn 2 20 pF 0 5 pF 0 1 ms or less to recover to within one division after removal of overdrive signal of up to 75 div or 75 div regardless of overdrive signal duration 0 02 div or less in anyone minute after one hour warmup Not more than 0 02 div C TABLE 1 3 PHYSICAL F...

Page 8: ...he signal is coupled to the input while the DC component is blocked DC Both AC and DC components of the signal is coupled to the amplifier input GND Grounds the amplifier input while maintaining the same load at the INPUT connector Provides a path for pre charging the AC coupling capacitor this feature pro tects both the 7A16A and the source generator from possible over voltage conditions POSITION...

Page 9: ...e equipped with readout The TEKTRON IX P6054 probe is electrically identical to the P6053 but is intended for use with systems not equipped with readout For more information refer to the Tektronix Inc catalog Vertical Gain Check and Adjustment To check the gain of the 7A16A set the VOLTS DIV switch to 10 mV and connect a 40 mV 1 kHz signal from the oscilloscope calibrator to the Input connector Th...

Page 10: ...asurements with a 7A16A and the associated TEKTRON IX oscilloscope and time base These applications are not described in detail since each applica tion must be adapted to the requirements of the individual measurements This instrument can also be used for many applications which are not described in this manual Contact your local TEKTRON IX Field Office or represent ative for assistance in making ...

Page 11: ...et the Coupling switch to DC and apply the reference voltage to the Input connector Then position the trace to the reference line and disconnect the reference voltage 4 Set the Coupling switch to DC The ground reference line can be checked at any time by switching to the GND position 5 Set the time base Triggering controls for a stable display Set the Time Base sweep rate for an optimum display of...

Page 12: ... the reference signal must be known If it is not known it can be measured before the VARIABLE control is set in step 2 4 Divide the amplitude of the reference signal volts by the product of the vertical deflection divisions established in step 2 and the setting of the VOLTS DIV switch Operation 7A16A This is the vertical conversion factor Vertical Conversion Factor reference signal amplitude volts...

Page 13: ... MHz The output of the Signal Splitter Amplifier is connected to the oscilloscope mainframe via the interface connector Readout encoding circuitry used in the 7A16A is standard to the 7000 Series DETAILED CIRCUIT DESCRIPTION AC GND DC Switch Input signals connected to the INPUT connector can be AC coupled DC coupled or internally disconnected S100A is a cam type switch a contact closure chart show...

Page 14: ... forming a 2X gain attenuator R436 provides low frequency thermal compensation R453 2X Bal is used to balance the emitter currents CR507 and R507 maintains a constant input voltage while switching between the 5 mV and 10 mV positions 3 2 Gain Amplifier Integrated circuit U550 is the same type as U350 Both differential outputs of U550 are paralleled to provide drive to the next stage In the CAL IN ...

Page 15: ...he probe connector The output of this circuit corrects the mainframe readout system to include the probe attenuation factor The third contact of the INPUT connector provides the input to the probe sensing device from the probe coding resistance coded REV S MAR 1975 Circuit Description 7A 16A probes only see Operating Instructions The third contact is also used for the DENTI FY input The coding res...

Page 16: ...ater solution Lubrication Use a cleaning type lubricant on shaft bushings inter connecting plug contacts and switch contacts Lubricate switch detents with a heavier grease A lubrication kit containing the necessary lubricating materials and instructions is available through any TEKTRON IX Field Office Order TEKTRON IX Part Number 003 0342 01 TROUBLESHOOTING General The following is provided to aug...

Page 17: ...Check the calibra tion of the unit or the affected circuit by performing Performance Check of Section 5 The apparent trouble may only be a result of mis adjustment and may be corrected by calibration Complete calibration instructions are given in Section 5 5 Check Voltages Often the defective component or stage can be located by checking for the correct voltage in the circuit Typical voltages are ...

Page 18: ...s should be direct replacements unless it is known that a different component will not adversely affect instrument performance Special Parts In addition to the standard electronic components some special parts are used in the 7A16A These parts are manufactured or selected by Tektronix Inc in accordance with our specifications These special parts are indicated in the parts list by an asterisk prece...

Page 19: ...rument When transistors are replaced check the performance of the part of the instrument wh ich may be affected 4 4 Replacement semiconductors should be of the original type or a direct replacement The schematic diagram shows the lead configurations of the semiconductors used in this instrument If the replacement semiconductor is not of the original type check the manufacturer s basing diagram for...

Page 20: ...ssistance in maintenance of cam type switches contact your local TEKTRONIX Field Office or representative A CAM TYPE SWITCHES A cam type switch consists of a rotating cam which is turned by the front panel knobs and a set of contacts mounted on an adjacent circuit board These switch contacts are actuated by lobes on the cam The VOLTS DIV and AC GND DC coupling cam type switches can be disassembled...

Page 21: ...t is required for complete calibration of the 7A16A Specifications given for the test equipment are the minimum necessary for accurate calibration Therefore the specifications of any test equipment used must meet or exceed the listed specifications All test equipment is assumed to be correctly calibrated and operating within the listed specifications Detailed operating instructions for the test eq...

Page 22: ...V and 10 mV 3 Check Var Bal R553 for vertical deflection of 0_2 division or less while rotating the VARIABLE con trol throughout the range 5 2 Examples of Applicable Usage Test Equipment Used throughout procedure to 1 TEKTRONIX 7904 Oscilloscope_ provide display_ 2_ Any TEKTRONIX 7000 Series oscilloscopes_ Check Specifications for bandwidth and risetime_ Used throughout procedure to 1 TEKTRONIX 7B...

Page 23: ...INPUTCOMP CI34 Fi Soh Location of Justm ntJ SIN 8050000 up Hf HF V B I R435 RS31 ASS3 C l C HF R756 HF C756 If IF Compenuljon 3 2X s R4S3 DC B I R1SO Calibration 7A16A INPUT COMPENSATION HF HF HF L770 eno RHO HF C435 2X Gain R413 1 Input Comp C134 Input Compenqlion Fig 5 1b LOClllion of djustments Below SIN B050000 REV JUNE 1974 5 3 Scans b OUiSOllrce Oplions ...

Page 24: ...ng steps unless otherwise noted Refer to Fig 5 1 a and Fig 5 1 b for location of adjustments NOTE Control titles which are printed on the front panel of the lA 16A are capitalized e g POSITION Internal adjustments and associated equipment controls are initially capitalized only e g oscilloscope Vertical Mode Preliminary Procedure for Calibration 1 Remove the oscilloscope left side cover and side p...

Page 25: ...413 2X Gain control to obtain a vertical display of exactly 5 division Calibration 7A16A d Rotate VARIABLE control CCW and check for 2 div or less of display e Set VARIABLE control to the CAL IN position 6 Check All VOLTS DIV Gain Settings a Check that all VOLTS DIV gain settings are within 2 Refer to Table 5 1 for control settings and tolerances b Return the VOLTS DIV switch to 10 mV and disconne...

Page 26: ...tions should not ex ceed 4 and 6 peak to peak For instruments B050000 and up NOTE For Instruments Below B050000 If integrated circuit U750 or transistors 0820 or 0840 are replaced it may become necessary to readjust coil L770 If satisfactory results are not achieved by adjusting all other high frequency controls then adjust L770 in the following manner Remove L770 from the plug in socket and short...

Page 27: ...oncerning any change in part number Change information if any is located at the rear of this manual SPECIAL NOTES AND SYMBOLS XOOO Part first added at this serial number OOX Part removed after this serial number ITEM NAME In the Parts List an Item Name is separated from the description by a colon Because of space limitations an Item Name may sometimes appear as incomplete For further Item Name ide...

Page 28: ...RC Fixed Resistors Philadelphia Division C W Industries Tektronix Inc Bourns Inc Instrument Div Beckman Instruments Inc Mallory Capacitor Co Div of P R Mallory co Inc ADDRESS P O Box 128 1201 2nd St South p O Box 5012 Electronics Park 464 Ellis St 12515 Chadron Ave 2201 Laurelwood Rd 3560 Madison Ave P O Box 787 644 W 12th St 2500 Harbor Blvd 299 lOth Ave S W 401 N Broad St 550 Davisville Rd P O B...

Page 29: ...8ll1A208E102Z C1S0 281 0S62 00 B010100 B069999X CAP FXD CER DI 39PF 10 SOOV 72982 301 000U2J0390K C1S4 283 0000 00 B010100 B069999X CAP FXD CER DI 0 001UF 100 0 SOOV 72982 831 S16E102P C1S6 283 01S6 00 XB070000 CAP FXD CER DI 1000PF 100 0 200V 72982 8ll1A208E102Z C1S8 290 0S36 00 CAP FXD ELCTLT 10UF 20 2SV 90201 TDC106M02SFL C190 281 0600 00 B010100 B079999X CAP FXD CER DI 3SPF 10 SOOV 72982 308 0...

Page 30: ...4 00 B010100 B069999X 108 0745 00 B010100 B069999X 108 0407 00 XB062454 108 0407 00 XB062454 108 0184 00 108 0184 00 CAP FXD CER DI 39PF 5 500V CAP FXD CER DI 0 01UF 80 20 500V CAP FXD CER DI 0 01UF 80 20 50OV CAP FXD CER DI 0 01UF 80 20 500V CAP FXD CER DI 0 01UF 80 20 500V SEMICOND DEVICE SILICON 35V 100MA SEMICOND DEVICE SILICON 3OV 150MA SEMICOND DEVICE SILICON 30V 150MA SEMICOND DEVICE SILICO...

Page 31: ...0 RES FXD COMP 470 OHM 5 0 25W 01121 CB4715 R140 315 0621 00 B010100 B069999 RES FXD COMP 620 OHM 5 0 25W 01121 CB6215 Rl40 315 0201 00 B070000 RES FXD COMP 200 OHM 5 0 25W 01121 CB2015 R142 315 0132 00 B010100 B069999 RES FXD COMP 1 3K OHM 5 0 25W 01121 CB1325 Rl42 315 0621 00 B070000 RES FXD COMP 620 OHM 5 0 25W 01121 CB6215 R144 315 0221 00 B010000 B069999X RES FXD COMP 220 OHM 5 0 25W 01121 CB...

Page 32: ...XD COMP 910 OHM 5 0 25W 01121 CB9115 R434 315 0511 00 B090000 RES FXD COMP 510 OHM 5 0 25W 01121 CB5115 R435 311 1259 00 RES VAR NONWIR 100 OHM 10 0 50W 80294 3329P L58 101 R436 311 1269 00 RES VAR NONWIR 20K OHM 10 0 50W 73138 62PT 352 0 R440 321 0069 00 RES FXD FILM 51 10HM 1 0 125W 75042 CEATO 51R10F R442 321 0069 00 RES FXD FILM 51 10HM 1 0 125W 75042 CEATO 51R10F R451 316 0822 00 RES FXD COMP...

Page 33: ...10100 B069999 RES FXD FILM 90 9 OHM 1 0 125W 75042 CEATO 90R90F R705 321 0088 00 B070000 RES FXD FILM 80 60HM 1 0 125W 75042 CEATO 80R60F R7l0 315 0151 00 RES FXD COMP 150 OHM 5 0 25W 01121 CB1515 R7l2 315 0151 00 RES FXD COMP 150 OHM 5 0 25W 01121 CB1515 R7l4 315 0301 00 RES FXD COMP 300 OHM 5 0 25W 01121 CB3015 R716 315 0301 00 RES FXD COMP 300 OHM 5 0 25W 01121 CB3015 R7l8 316 0333 00 RES FXD C...

Page 34: ...ES FXD COMP 47 OHM 10 0 25W RES FXD FILM 1K OHM 1 0 5W RES FXD FILM 1K OHM 1 0 5W RES FXD COMP 560HM 5 0 25W RES FXD COMP 560HM S 0 2SW RES FXD WW 1 SK OHM 1 3W RES FXD WW 1 5K OHM 1 3W RES FXD COMP 430 OHM S 0 2SW RES FXD COMP 270 OHM 10 0 25W RES FXD COMP 270 OHM 10 0 25W RES FXD COMP 430 OHM S 0 2SW RES FXD COMP 110 OHM 5 0 25W RES FXD COMP 470HM 10 0 25W RES FXD COMP 47 OHM 10 0 2SW RES FXD FI...

Page 35: ...n soldered to circuit board I Connection made to circuit board with interconnecting pin Blue tint encloses components located on circuit board The following prefix letters are used as reference designators to identify components or assemblies on the diagrams A Assembly separable or repairable circuit board etc LR Inductor resistor combination AT A ttenuator fixed or variab Ie M Meter B Motor Q Tra...

Page 36: ...INPUT 7AlfoA AC GND DC INPUT COUPLING t 1 SWITCH ATTENUATORS Scans bp Outsou ce Options INPUT SOURCE FOLLOWER 0140 Q150 INVERT BAL VERT SIG OUT POLARITY SWITC POLARITY U350 AMPLIFIER LE 0920 C ...

Page 37: ...EVEL SHIFTER 0920 0940 0960 0980 GAIN AMPLIFIER U550 H VARIABLE I POSITIONING AMP 0720 0730 SIGNAL SPLITTER I VERTICAL LEVEL SHIFTER 0820 0840 0860 0880 TRIG SIG OUT I l BW LIMIT 11 1 BLOCK DIAGRAM Scans bp Outsource Options Syn Elec Sym Logi and The The A AT B BT C CR DL DS F FL H HR J K L I ...

Page 38: ... R553 R423 431 C i1 l 36 e434 1 S07 R4 J R505 C 38 A442A440 R O C531 R O R523 A531 RI38 a 9 CR720 R718 16 30 114 134 732 0730 R7015 A703 D s P u Lilt for i 1 numbe 09M R721 R832 R834 nr R822 III R112 7 R142 R7Ii e 1A16A Amplifi r Bo rd SN BOSOOOO up cno r R305 RlO7 R313 BaH H4ll 841 4 11415 MJ7 A6 3 A611 RII19 R542 R540 A757 R158 REV JUNE 1974 ...

Page 39: ...0 0730 to R824 JIo R822 T A520 R523 A 31 C531 Ci38 R638 705 R703 7 712 R756 A 0 760 A_ A 2 t R513 A511 A51 0 R1540 R757 R768 7A16A Amplifier Board Below SN 8050000 See Paru List for _ ial numbel n ngn Sc 1U by OlllSo ce Op iollS Louted on bKk of bo d R350 R352 _R432 433 R140 R742 REV JAN 1974 ...

Page 40: ...ee Paru Lin for i 1 number r nges Loe ed R118 A115 other sid 01 board C144 A162 AlSO R152 0150 C 40 I I Rl41 CUt ell4 Al34 R130 R104 A164 A160 ____ R1S6 A158 C 58 REV C Se PT 1974 7A16 Attenullo BOlrd below SN 8080000 Scllns b OlliSOllrce OpliollS ...

Page 41: ... I S G HSV R14 2 I k C 2 001 I F fa C M ___ __ l V 1 _ IIh IS oot I I I R Z 1 50 R 0 1M RIS 200 ISV a W common anode clip cathode off REV C SEPT 1974 I I TO I il t llH Ll S c 7 CI44 I l COI I 1 O __ _4 leI R 1 04 CI So ISV S foK 0 39 T3 21 L E FF B LOW SN Oe OCOO _t_ ...

Page 42: ...r MTtHVATOR e QAR O SIOO N91ts p I C O U I OOT INDIG TE 10 eO T c 1 CLOS U e COt ItAC l s OPlN t S CONTACT S ARt ON CAM IOt or _ RD 3 6W n SNOW IN AC POSITION t I x C 0 1 I c 1 0 3 Sw _POSITION eIRCUIT_ l t It E V 0 SEI ...

Page 43: ... l 3 tH 1 7 O 10If J s e 1 2 t i 7S 0 f I r R11l I j J 1 311 0 L I t 00 R7 0 _ISV I l i lI ev D SEPT I P4 c 1 1D r I Q8QO lllSO IOO ji l lliQ I Q840 FIll ll OOk R I t 1 2 l1 R8 2 2 50 1 2 43 I 20M OWIO l aZ9 15V 0 h 1 8 2 R9 14 I r 2 1 1 k W 1 601 Q920 I t O C1 91OO t99O 1 5b k t r 1 9bO I V 180 II 11916 9 fg R n 8 Q980 COM l60 nH r v I 11 19 1 E 9 k ft 908 Q94 J l sO ATTE NUATORj AMPLIFIER Scam b...

Page 44: ...7A16A Diagrams 7A16A Readoul BOlrd L ...

Page 45: ...D I I I n I I I I I I I I I I I Th 11 3Z I I I I 159 72 I I 2 I I I 2 3 I I RIOi2 I l _1 11 0 I I IS V I I I I I _TR 0111 FROM R9200 iH3 3 5 OUT I M l20 D t 1l I 0 u v R OW_I Y ATE I I I Ui ux WE E I An 4 o o leI I I GAT COM 2 _____________ L 2 C L 7AI6A I I Sctlm by OlltsOllrce OptioliS L _ _ c C l cc gc co I Y f3 2 CIOl m 1 tCIOI2 f c 0 0 511 _ _ L____ ___ ...

Page 46: ...t 1 1t fcR I O k OC Ll ocrl 5 5V t t ISV S I ocP O PU n 2 5 ___ ____ 5 1 1 1I i IXI L r 15 V T ro 1I 75b T CI020 1 1756 i rn 01 _ ___________ _ 15 l r Pt l PVLI JoU Jt L mi J Ci 49 I 9 38 75 H s ISO k 11 C 04 001 J M u 37 41 I I i I UNc AL INVERT I DECI MAL I J 3 I T NUATOR _ _ _ _ _ __ _ _ _ __ I Y OC Pl ielalo t 01 AMPL IF IER eOAAt _ _ 1 _______ g tA 1189 I READOUT MAINFRAME CONNECTOR w Sq 6 I ...

Page 47: ... purchased separately unless otherwise specified ITEM NAME In the Parts List an Item Name is separated from the description by a colon Because of space limitations an Item Name may sometimes appear as incor nplete For further Item Name identification the U S Federal Cataloging Handbook H6 1 can be utilized where possible ABBREVIATIONS INCH ELCTRN ELECTRON IN INCH SE SINGLE END NUMBER SIZE ELEC ELE...

Page 48: ...ektronix Inc Central Screw Co N L Industries Inc Southern Screw Div Industrial Retaining Ring Co ADDRESS P O Box 3608 7100 Lampson Ave 351 Connecticut Ave 10 Esna Park Dr Youk Expressway 455 N Quince St 3560 Madison Ave 1 21 East Jefferson St P O Drawer 570 17333 Healy 446 Morgan St 31 Brook St West St Charles Road 550 Davisville Rd P O Box 500 2530 Crescent Dr P O Box 1360 57 Cordier St Scans by ...

Page 49: ...0 25 32 X 0 312 INCH BRS 1 WASHER LOCK INTL 0 26 ID X 0 40 OD STL 2 SWITCH SLIDE DPDT 0 5A 125VAC ATTACHING PARTS FOR EACH 2 SCREW MACHINE 2 56 X 0 25 82 DEG FLH STL 2 NUT PLAIN HEX 2 56 X 0 188 INCH BRS 1 SUBPANEL FRONT ATTACHING PARTS 4 SCR TPG THD FOR 6 32 X 0 50 INCH PNH STL 1 EXTENSION SHAFT 7 80 L X 0 124 00 1 COVER ATTEN CHAS ATTACHING PARTS 4 SCREW MACHINE 4 40 X 0 188 INCH PNH STL 4 WASHE...

Page 50: ...CREW CAP SCH 2 56 X 0 375 HEX HD STL 00779 1 332095 2 00779 1 331677 4 80009 337 1406 00 22526 47439 80009 352 0169 00 23499 TEK 175 0825 00 83385 OBD 83385 OBD 73743 2x12157 402 80009 441 1097 00 83385 OBD 78189 1204 00 00 0541c 73743 2X12161 402 80009 131 0907 00 80009 105 0243 00 70278 OBD ACTR ASSY CAM S 80009 263 1018 00 ACTR ASSY CAM S 80009 263 1018 01 RING RETAINING 0 395 FREE ID X 0 025 S...

Page 51: ...40 OD STL ATTACHING PARTS FOR CKT BD 2 SCREW MACHINE 4 40 X 0 25 INCH PNH STL 2 CPLG SHAFT RGD 0 128 ID X 0 312 OD X 0 5 L 2 SETSCREW 4 40 X 0 094 INCH HEX SOC STL 1 EXTENSION SHAFT 7 04 L X 0 123 INCH OD 1 EXTENSION SHAFT 0 126ID X 0 1250D X 0 50L 1 POST ELEC MECH ATTACHING PARTS 1 SCREW MACHINE 4 40 X 0 25 INCH PNH STL 1 PAWL 0 475 X 0 21 X 0 184 INCH PLSTC 1 SPRING DETENT LATCH 1 TERMINAL LUG A...

Page 52: ... l ...

Page 53: ...101 A2 AMPLIFIER 102 o ODtJolfS ScIllfS by Olltso ce A AMPLIFIER 7A16 T1 G m X r 0 C m C ...

Page 54: ...cn e a z a cne cn w uu u 0 NW a e u Fig Index No 2 Tektronix Part No 070 1378 00 7A 16A AMPLIFIER ACCESSORIES Serial Model No Eft Disc a t Y 1 2 3 4 5 Description MANUAL instruction not shown i I L ...

Page 55: ...tronix Serial Model No t No Part No Eft Disc y 1 2 3 4 5 Description 2 065 0125 00 1 CARTON ASSEMBLY Carton assembly includes 1 004 0241 00 2 CASE HALF 2 004 0242 00 END CAP rear 3 004 0243 00 EN D CAP front 4 004 0748 00 CARTON ...

Page 56: ...nto 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 times so some of the information on the change pages may already be in your manual Since the change information sheets are carried in the manual until ALL changes are permanently entered some duplication may oc...

Page 57: ...hoto pages are typically scanned in gray scale mooe at 600 dpi 3 Schematic diagram pages are typically scanned in black and Nhite at 600 dpi unless the original manual had colored high lighting as is the case for some 70 s vintage Tektronix manuals Original pages which exceed the 8 5 x 11 format are scanned with enough overlap so that they can be printed and pieced This is done for primarily for t...

Reviews: