Tektronix 5A26 Instruction Manual Download Page 15 | Manualshive

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Summary of Contents for 5A26

Page 1: ......

Page 2: ...TEKTRONIX 1 1 1 1 1 Tektronix Inc Box 500 Beaverton Oregon 97077 7 47 I NST R UCTIO N MANUA L Serial Nu mber First Printing JUNE 1975...

Page 3: ...re you the fastest possible service Please include instrument Type N u mber o r Part Number and Ser Number with all requests for parts or seru re Specifications and price change privileges reserved Co...

Page 4: ...G R AMS Differential Operation 1 5 Voltage Probes 1 6 SE CTION 5 REPLACEABLE MEC HANICAL PARTS Differential Measurements 1 6 SPECI F ICATIO NS 1 7 CHANGE INFORMATION LIST OF ILLUSTRATIONS F IGURE FIGU...

Page 5: ...Fig 1 1 5 26 Dual Differential Amplifier...

Page 6: ...ides calibrated continuously variable deflection factors between the calibrated settings of the VOLTS DIV CO NTRO LS CONNECTO RS AND I NDICATO RS switch and extend s th e d eflection factor range to 1...

Page 7: ...Operating Instructions 5A26 r Fig 1 2 Front panel controls connectors and indicators...

Page 8: ...nd automatic triggering c Set 5 26 front panel controls as follows DISPLAY ON button in TR IGG ER OUT C H 1 b utto n out POS Mid ra nge BW LIMIT OUT 1 MHz button out VO LTS D 1V 5 STEP BA L Midrange C...

Page 9: ...imized by using d ifferential rather than single en d ed measurement These consid erations are d is When measuring unknow n voltages use the h ighest deflection cussed later in this section under Diff...

Page 10: ...in the attenuator When the rather th an by absolute voltage To accomplish this apply strap is removed the attenuation ratio is reference signal to either or inputs of th e 5A26 and affected causing t...

Page 11: ...icule scale If th e same 1 millivolt signal is measured differentially with Differential Measurements the 60 hertz signal common to both inputs no more th an The following adjustment procedure is reco...

Page 12: ...iv in 1 2 5 sequence Within 2 of deflection factor setting Variable VO LTS DI V control provides conti nuously variable deflection factor between calibrated settings and extends deflection factor rang...

Page 13: ...robe atten uation 30 V or less at full bandwid th At least 100 1 with 8 div sine wave applied to one channel at 2 V d iv and other ch an n el at 1 mV d iv with no signal applied 50 V or less at any d...

Page 14: ...0 00 j 0 000000 Fig 1 3 Dimensio ns Operating Instructions 5A26...

Page 15: ...ching rate in dual trace a nd d iode protected The Preamplifier consists of two operation is determined by the channel switch signal re peti identical operational am plifiers connected in d ifferentia...

Page 16: ...t connectors may be ca pacitive coupled ac direct cou pled dc or internally grounded through capacitor and resistor Input In addition to providing constant 100 attenuation at all coupling is selected...

Page 17: ...on of R 203 R213 and R 228 through R 236 One of the primary functions of the Preamplifier is to reject any common mode com ponent of the in put signal and am plify only the difference Assume that th e...

Page 18: ...h of these transistors is on With th e CH 1 MOD E button pressed in and the CH 2 MOD E button o ut Transistors Q267 and Q277 are positioning curre nt drivers the bias level on Q286 is lower more negat...

Page 19: ...eives the triggering both in puts will provide 10 readout on the VO LTS DIV signal from the emitters of Q242 and Q252 in th e isolation knob skirt and on the crt stage of the Output Amplifier The trig...

Page 20: ...actyou concerning any change in part number Change information if any is located at the rear of th is manual SPECIAL NOTES AND SYMBO LS Part first added at th is serial number Part removed after t his...

Page 21: ...CT 06810 15818 T ELEDYNE SEMICONDUCTOR 1300 TERRA BELLA AVE MOUNTAIN VIEW CA 94040 19701 ELECTRA MIDLAND CORP ELECTRA DIV BOX 760 MINERAL WELLS TX 76067 34553 R ELECTRONIC CORP COMPONENT DIV 35 HOFFMA...

Page 22: ...0 281 0503 00 CAP FXD CER DI SPF O 5PF SOOV 72982 301 000COH0809D C94 283 0080 00 CAP FXD C R DI 0 022UF 80 20 25V 56289 19C611 C96 281 0629 00 CAP FXD CER DI 33PF 5 600V 72982 308 000COG033OG C97 283...

Page 23: ...P FXD CER DI O O1UF 80 20 150V 72982 855 547 103 C376 283 0003 00 CAP FXD CER DI O O1UF 80 20 150V 72982 855 547 103 C389 281 0578 00 CAP FXD CER DI 18PF S SOOV 72982 301 OOOCOGO180 J C401 283 0003 00...

Page 24: ...00 COIL RF 3 9UH 80009 108 0245 00 L594 108 0245 00 COIL RF 3 9UH 80009 108 0245 00 Q39 151 0341 00 TRANSISTOR SILICON NPN 07263 2 3565 Q44 151 0342 00 TRANSISTOR SILICON PNP 07263 2 4249 Q48 151 043...

Page 25: ...03508 16 4039 9484 151 1005 00 TRANSISTOR SILICON JFE N CHANNEL 15818 1490 9500 151 0281 00 TRANSISTOR SILICON NPN 03508 16 4039 Q508 151 0281 00 TRANSISTOR SILICON NPN 03508 16 4039 Q516 151 0281 00...

Page 26: ...80740 62 54 3 R112 315 0105 00 RES FXD CMPSN IM 5 0 25W 01121 CB1055 R114 315 0270 00 RES FXD CMPSN 27 5 0 25W 01121 CB2705 R115 322 0624 07 RES FXD FILM 990K 0 1 0 25W 75042 CEBTO 9903 R118 321 0289...

Page 27: ...ES FXD FI LM IK 0 25 0 125W 75042 CEAT2 1001C R215 321 0256 00 RES FXD FILM 4 53K OHM 1 0 125W 75042 CEATO 4531 F R218 321 0278 00 RES FXD FI LM 7 68K OHM 1 0 125W 75042 CEATO 7681 F 220 321 0231 00 R...

Page 28: ...5 0 125W 75042 CEAT2 1001C R315 321 0256 00 RES FXD FI LM 4 53K OHM 1 0 125W 75042 CEATO 4531F R318 321 0278 00 RES FXD FI LM 7 68K OHM 1 0 125W 75042 CEATO 7681F R320 321 0231 00 R S D L 2 49 OHM 1 0...

Page 29: ...491 F R414 322 0264 00 RES FXD FILM 5 49K 1 0 25W 75042 CEBTO 5491 F R416 315 0473 00 RES FXD CMPSN 47K S 0 25W 01121 CB4735 R418 315 0105 00 RES FXD CMPSN IM OHM 58 0 25W 01121 CB1055 R419 315 0105 0...

Page 30: ...ILM l00K OHM 1 0 125W 75042 CEATO 1003F R517 315 0203 00 RES FXD CMPSN 20K 5 0 25W 01121 CB2035 R520 321 0374 00 RES FXD FILM 76 8K 1 0 125W 75042 CEATO 7682F R521 321 0398 00 RES FXD FILM 137K 1 0 12...

Page 31: ...00 SEMICOND DEVICE ZENER 0 4W 12V 5 04713 1 963 VR222 153 0030 00 SEMICOND DEVICE SE MTCHD WITHIN O 1V AT 40OMW 80009 153 0030 00 VR224 152 0227 00 SEMICOND DEVICE ZENER 0 4W 6 2V S 81483 69 6585 VR29...

Page 32: ...al PREAMPLIFIER BOA RDS The Ch annel 1 and Channel 2 2 Loosen set screws that attach VOLTS D I V knobs to Preamplifier boards are id entical Therefore the following shaft and remove knobs proced ure a...

Page 33: ...le or non repairable CB Circuit br ea k e r L I ndu cto r fixed or va r iab le i n teg r ated ci rcu it etc C R Dio d e sig n al o r r ectifie r LR I ndu ctor r esistor co mb i n atio n V E lect ro n...

Page 34: ...Fig 4 1 Circuit board locations...

Page 35: ...66 Q474 1 S 20C C H 2 VOLTS DfV COLUMN ROW C URRENT SOURCES Q500 Q508 Q516 Q524 5 2 139 Q144 64 146 G PRE A MPL I F I ER S W ITC CO N STA N T A MPL I Q54A CURREN T Q 60 RE T URN 920E Q64A B Q66A 8 Q20...

Page 36: ...MPL I F I ER 0 POSITIONING B A N D C URREN T Q205A B W IDT H QZ42 R 274 D R I VER S Q208A 8 LIMIT 4252 Q267 1 8 5239 QZ60 QZ77 S2 09 Q 270 C H I A NA L OG DATA DIAG C H 2 AN A L OG DATA T R IGG ER A...

Page 37: ...in Tektronix 500 Series power mod ule or Tektronix part 067 0502 01 Preparation PROC EDURE 5 26 both channels POS Mi drange VOLTS DI V 50 m d CA L Varia ble F ully clockwise detent co VOLTS DI V ST E...

Page 38: ...NPUT COMPENSATION panel STEP BAL control is permissable Set 5 26 controls as follows b Re peat part for CH 2 Atten Range R189 and CH 2 VOLTS DIV switch CH 2 Input Coupling 3 ADJUST LOW FREQUENCY COMMO...

Page 39: ...r CH 2 Input Co u pling on top of displayed square wave GND GN D button in s Disconnect standard amplitude calibrator and 47 pF 61 CH 2 In put Coupling normalizer and reconnect to CH 1 input GN D Off...

Page 40: ...ND GND button in CH 1 and CH 2 VOLTS DIV 50 MODE CH 1 and CH 2 b Connect stand ard amplitude calibrator through 50 buttons in cable to CH 1 input and set for 0 2 volt output c Adjust Gain 1 R273 for 4...

Page 41: ...ect d ual input connector and recon nect to j Set CH 2 VOLTS DI V to 1 CH 2 and in puts k Adj ust Input Comp C105 5 for minimum display h Set 5 26 controls as follows amplitude CH 1 and Input Cou plin...

Page 42: ...C59 R9 C5 C6 C4 C1 6 C15 C14 BAL HF CMR LF CM R RANG E INPUT INPUT COMP COM P 2 CH 2 PREAM PLI FI ER CI RCUIT BOARD C159 3 MAIN CIRCUIT BOARD R189 BAL HF CMR LF CMR C 6 C115 RANG E INPUT INPUT COM P C...

Page 43: ...1 CH 1 PRE AMPL I F IER CI R CU IT C D F CH R L F R CIRCUIT I C D F Fig 4 4 All A2 Channel 1 an d 2 Preamplifier circu it board comp...

Page 44: ...C C42 2D C43 2D CK T GR ID NO LOC C102 3 C104 2 C105 2G C1 6 2 C108 2F C112 1 C1 14 C115 1G C116 2G C118 3 F C123 1 E C125 1 E C140 2C C142 2D C143 2D C K T GR NO L C45 2D C54 2F C59 3D C60 3D C74 2F...

Page 45: ...9 R 12 R 14 R 15 R18 R23 R25 R30 R36 R37 R39 C KT GRID NO LOC R 102 31 R104 21 R105 2G R108 3G R109 3G R 112 11 R114 21 R115 1G R118 3G R120 2 R123 1D R 125 1D R130 2 R 136 2D R 137 1D 31 21 3G 3G 3G...

Page 46: ...ed The voltmeter common is connected to chassis ground The 5 26 is connected to the oscillo scope left vertical plug in compartment th rough the plug i n extension cable and the controls are set as fo...

Page 47: ...D C15 AG G N D 8 1 U DC PRE GH G IN GH 1 I NPU T COUPL I N G PR 0TH IN I NPUT VO LTS DI V AC CO MP _ _ _ 5 2 cu U OUT CI R CLE D NUM SER S DC GN D 1 1010101010101010 SW ITC H CH 2 J IOIA J 1018 51 02...

Page 48: ...R 147 QI44 r lrF 3 0154 80 Q164 B 3 3 9 R18 6 R 184 2 74 30V R173 30V FROM Q 6 F MAIN 19 R 199 G N D BOAR D 5 5 30 V 30V L 1C DIAG 2 CH 2 PRE A M P BOA R D C F G N D L F 1 RS 0 R53 CMR LQ6 2 74 b R15...

Page 49: ...g nal applied The volt meter common is connected to chassis grou nd The 5 26 is connected to the oscillo scope left vertical plug in compartment through the plug in extension cable and the controls ar...

Page 50: ...30 V GND l 3 3 6W D C302 R305 2 2 4 53 s R301 Q3o5A R304 R303 5 6 2v R313 5 R 314 Q 505 2 2 R 315 4 5 3 MATC HE D R R2 2 49 2 50 m 6 66 2 50 R 1 2 4 17 1 204 101 2034 R220 2 49K R310 Z 49 K 2 c r 1 1...

Page 51: ...3 ISO 4 TR IGG ER 9360 Q270 C407 R407 F 3 73 25 3 3ov GAIN R 372 2 9 9 31 Q 370 R268 J b 6 33 3 R276 R279 2 C276 T 30 V R 278 23 2 m CH 2 CH I _C R 286 _ C288 1 R 288 _ tVO LTAG E S OBTAINED 1E 171 49...

Page 52: ...Fig 4 8 A3 Main circuit board componen...

Page 53: ...76 4G C389 31 C401 5G C407 5G C415 3 C435 5 C445 51 C487 1 C592 51 C594 51 CR 224 3F CR246 2G CR280 2 CR286 31 CR290 21 CR293 41 CR324 3F CR346 5G CR380 5 CR383 51 CR386 31 CR390 51 CR393 51 CR411 2 C...

Page 54: ...F R287 3J R366 4 R454 3D R528 11 C407 5G 0277 3 R210 3 F R288 3J R368 4 R455 3D R529 2J C415 3 0282 4J R211 2 E R289 4 1 R372 4G R456 3D R531 2J C435 5 0286 3 R213 1D R290 2 R373 4 R457 3C R532 2J C44...

Page 55: ...Capable of extending 5 26 from oscilloscope Tektronix part no 067 0645 00 plug in compartment 10 Probe with readout coding Readout coding resistance 11 k Tektronix 6062 Probe connector Control Settin...

Page 56: ...5445 MOD E DIS PLAY BOTH IN D riMr r N t 3 2 9 3 r 0 1 0 3 000 r R454 R 455 R456 Q4513 R 462 R463 R 464 R 451 137 76 8 8 25 33 49 9 2 7 R457 R 465 66 6 R460 75 0 R506 1 1 4 9 1 i R504 R505 Q r08 R512...

Page 57: ...AT E 2Om 5 S20C o 2 5 Ly 5 SOm SHOW N 1 2 1C 2 5V POSITION f 8 C 5 IV READOUT 89 I N T EN SI F YI N G 826 TS9 m 26 5 6 TIME i 27 54 SL OT C PUL S E S 25 53 ZERO 27 TSI 8 5 L 592 82 5 _ 1 m 3 9 H 00 2m...

Page 58: ...aching parts must be purchased separately unless otherwise specified ABBREVIATIONS ITEM NAME In the Parts List an Item Name is separated from the description by colon Beca use of space li m itations a...

Page 59: ...FASTENER DIV 1 DRIVE CLIFTON NJ 07014 71400 BUSSMAN MFG DIVISION OF MCGRAW EDISON CO 2536 W UNIVERSITY 5 ST LOUIS MO 63107 71785 TRW ELECTRONIC COMPONENTS CINCH CONNECTOR OPERATIONS 1501 MORSE AVE ELK...

Page 60: ...STL 73743 2 28269 402 210 0012 00 2 WASHE LCCK NTL 0 375 ID 0 50 OD STL 78189 1220 02 00 0541C 20 210 0978 00 1 WASHER FLAT 0 375 ID 0 50 INCH OD STL 78471 OBD 21 344 0195 01 1 CLIP ELECTRICAL CAM SH...

Page 61: ...AT GREEN COLORED 80009 214 1139 02 60 214 1127 00 2 ROLLER DETE T 0 125 DIA 0 125 INCH L 80009 214 1127 00 61 401 0081 02 1 BEARING CAM SW FRONT 80009 401 0081 02 ATTACHING PARTS 62 354 0391 00 1 RING...

Page 62: ...00 88 175 0827 00 FT WIRE ELECTRICAL 4 WIRE RIBBON 0 250 FT 08261 75 0827 00 89 175 083 00 FT WIRE ELECTRICAL 8 WIRE RIBBON 0 625 FT 08261 175 0831 00 90 352 0162 01 2 CONN BODY PL EL 4 WIRE BROWN 800...

Page 63: ...4 _ _ r _ 7 C...

Page 64: ..._ 88 5 26...

Page 65: ...diately into printed manuals Hence your manual may contain new change information on following pages single change may affect several sections Sections of the manual a re often printed at d ifferent t...

Page 66: ...Rotate CH 2 CAL Variable VOLTS DIV fully coun ter c l oc kwise and check that display amplitude i s 1 5 divi s ions or less 3 Al so on the Adj ustment Locations pullout change 6 to read as fo l lows S...

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