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Tektronix 7A26, Инструкция по эксплуатации


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Содержание 7A26

Страница 1: ...077 070 1484 01 Product Group 42 COMMITTED m EXCELLENCE PLEASE CHECK FOR CHANGE INFORMATION AT THE REAR OF THIS MANUAL 7A26 DUAL TRACE AMPLIFIER INSTRUCTION MANUAL Serial Number ScIlllS bp O tso rce p...

Страница 2: ...done as follows 1 Typed text pages are typically scanned in black and while at 300 dpi 2 Photo pages are typically scanned in gray scale mode at 600 dpi 3 Schemalic diagram pages are typically scanned...

Страница 3: ...price change privileges are reserved INSTRUMENT SERIAL NUMBERS Each instrument has a serial number on a par lel insert tag or stamped on the chassis The first number or letter designates the country...

Страница 4: ...ing instructions unless qualified to do so SECTION 3 THEORY OF OPERATION Introduction 3 1 Block Diagram 3 1 Detailed Circuit Description 3 1 SECTION 4 MAINTENANCE Introduction 4 1 Preventive Maintenan...

Страница 5: ...uce electrical shock hazard the mainframe oscilloscope chassis must be properlygrounded Re fer to the mainframe manual for grounding information DO NOT REMOVE INSTRUMENT COVERS To avoid electric shock...

Страница 6: ...id the use of chemical cleaning agents which might damage the plastic used in this instrument Use a non residue type of cleaner preferably isopropyl al cohol totally denatured ethyl alcohol or Freon T...

Страница 7: ...Fig 7A26 Dual Trace Amplifier 7A26...

Страница 8: ...he circuit under test to perform very close to normal operating conditions Any TEKTRON IX probe with a readout coding ring can be used with TEKTRON IX 7A series amplifier units equipped with readout T...

Страница 9: ...also replaces readout with the word IDENTIFY CH 2 Input Connector Provides signal connection to Ch 2 TRIGGER SOURCE source of the trigger DISPLAY MODE Selects the mode of operation VARIABLE VOLTS DIV...

Страница 10: ...and set the DISPLAY MODE switch to the corresponding position CH 1 or CH 2 REV B MAR 1975 Operating Instructions 7A26 To display a signal in one channel independently when a signal is also applied to...

Страница 11: ...tance in making specific measurements with this instrument Peak to Peak Voltage Measurements AC To make peak to peak voltage measurements use the following procedure 1 Apply the signal to either input...

Страница 12: ...trace to the reference line 5 Set the coupling switch to DC The ground reference line can be checked at any time by switching to the GND position 6 Set the time base Triggering controls for a stable...

Страница 13: ...e of an unknown signal disconnect the reference signal and connect the unknown signal to the input connector Set the VOLTS DIV switch to a setting that provides sufficient vertical deflection to make...

Страница 14: ...Fig 1 6 Measuring phase difference between two signals Operating Instructions 7A26 Using the formula Phase Difference horizontal difference X divisions Substituting the given values sweep rate degrees...

Страница 15: ...rity 7 Adjust the Channel 2 VOLTS DIV switch and VARIABLE control for maximum cancellation of the common mode signal The signal which remains should be only the desired portion of the channell signal...

Страница 16: ...ously variable between calibrated steps extends deflection factor to at least 12 5 volts per division GAIN Range Permits adjustment of deflection factor for calibrated operation with all 7000 series o...

Страница 17: ...of over drive signal duration_ Delay Time Difference Between Channels 200 picoseconds or less Common Mode Rejection Ratio At least 10 1 DC to 50 MHz Display Modes Channell only Dual trace alternate be...

Страница 18: ...t of the Gain Amplifier is connected to the Posi tioning circuitry where the POSITION and IDENTIFY functions are controlled Channel 2 is identical to Channel 1 with the exception of the polarity inver...

Страница 19: ...r wh ich provides differential drive to U1350 at high frequencies U1350 is a paraphase type amplifier with dual differential output capabilities In th 5 mV position full drive is provided from pins 5...

Страница 20: ...through 0620 R647 CR647 are switched between time slot three TS 3 and Column output line when the CAL IN switch is in the uncal position This results in the symbol greater than being displayed precedi...

Страница 21: ...ent amount of collector current which when added to the column current output replaces the deflection factor readout with the word IDENTIFY 3 4 These two actions aid in identifying the 7A26 trace when...

Страница 22: ...ubrication kit REV OCT 1982 containing the necessary lubricating materials and instruc tions is available through any TEKTRON IX Field Office Order TEKTRONIX Part Number 003 0342 02 TROUBLESHOOTING Ge...

Страница 23: ...king the voltage in the circuit 4 2 6 Check Individual Components The following methods are provided for checking the individual com ponents Components which are soldered in place are best checked by...

Страница 24: ...rder all special parts directly from your local TEKTRONIX Field Office or representative Ordering Parts When ordering replacement parts from Tektronix Inc include the following information 1 Instrumen...

Страница 25: ...strument If the replace ment semiconductor is not of the original type check the manufacturer s basing diagram for proper basing Circuit Board Removal In general the circuit boards used in the 7A26 ne...

Страница 26: ...eadout board and the Attenuator board switch assembly as described previously The front switch section on the Attenuator board is the AC GND DC switch and the rear switch section is the VOLTS DIV swit...

Страница 27: ...talion 01 VARIABLE control Yes Rotate VOLTS DIV switch to each position trace remains visible on screen Readout display changes to correspond with indicated VOLTS DIV Yes 4 6 TROUBLESHOOTING CHART EQU...

Страница 28: ...tch to INVERT Single trace is visible Read out display appears in lower graticule area of crt Yes Set DISPLAY MODE switch to CH 1 Triggered display stable square wave can be obtained using Time Base c...

Страница 29: ...the original packaging is unfit for use or not available repackage the instrument as follows 4 8 Surround the instrument with polyethylene sheeting to protect the finish of the instrument Obtain a car...

Страница 30: ...r 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 with...

Страница 31: ...rence frequency 50 kilohertz Signal Generator 1 erator output amplitude variable from 5 milli volts to 50 millivolts into 50 ohms out put amplitude constant within 3 at 50 kilohertz and 50 to 75 megah...

Страница 32: ...rature within the O C to 50 C range Preliminary Control Settings Set the calibration oscilloscope and time base unit for a sharp well defined trace Set the 7A26 controls as follows DISPLAY MODE TRIGGE...

Страница 33: ...ise to fully clockwise g Set the CH 1 VARIABLE control to the CAL IN position h Set the DISPLAY MODE switch to CH 2 5 4 i Position the trace to the center horizontal line with the CH 2 POSITION contro...

Страница 34: ...H 1 POSITION control r CHECK CRT display for exactly four divisions in amplitude s ADJUST CH 1 GAl N adjustment front panel for exactly four divisions of deflection To adjust press in the Calibration...

Страница 35: ...in approxi mately six vertical divisions of a 1 kHz square wave c ADJUST R1436 and R1431 LF compensation con trol for best flat top minimum tilt 5 6 d Disconnect the Square wave Generator from CH 1 an...

Страница 36: ...aberrations I Repeat step f m Remove the Plug in Extender from the Vertical com partment and insert the 7A26 into the compartment REV E MAY 1975 Calibration 7A26 n Disconnect the Pulse Generator from...

Страница 37: ...cannot be triggered g Set the TRIGGER SOURCE switch to CH 2 h Adjust the time base triggering for a stable display 5 8 i CHECK CRT display CH 2 trace is stable and CH 1 trace cannot be triggered j Set...

Страница 38: ...ontact you concerning 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 a...

Страница 39: ...XED RESISTORS PHILADELPHIA DIVISION OAK INDUSTRIES INC SWITCH DIV STACKPOLE CARBON CO C W INDUSTRIES TEKTRONIX INC MALLORY CAPACITOR CO DIV OF P R MALLORY AND CO INC RADIO MATERIALS COMPANY DIV OF P R...

Страница 40: ...670 2310 04 B150000 B179999 CKT BOARD ASSY READOUT 80009 670 2310 04 A3 670 2310 06 B180000 B195171 CKT BOARD ASSY READOUT 80009 670 231 0 06 A3 670 2310 08 B195172 B251 089 CKT BOARD ASSY READOUT 80...

Страница 41: ...V 59660 0301080COG0390 Cl012 290 0512 00 8010100 8039999 CAP FXD ELCTLT 22UF 20 15V 56289 196D226X0015KA1 Cl012 290 0536 00 8040000 8251454 CAP FXD ELCTLT l0UF 20 25V 90201 TOC106M025FL Cl012 290 0804...

Страница 42: ...500V 59660 831610Y5U0102P C1531 281 0161 00 CAP VAR CER DI 5 15PF 350V 59660 518 000A5 15 C1533 283 0177 00 B010l00 Bl09999 CAP FXD CER DI 1UF 80 20 25V 04222 SR302El05ZAA C1533 281 0658 00 Bl10000 CA...

Страница 43: ...30V DO 35 12969 NDP0263 1 N4152 CR860 152 0141 02 SEMICOND DVC DI SW SI 30V 150MA 30V DO 35 12969 NDP0263 1 N4152 CR880 152 0141 02 SEMICOND DVC DI SW SI 30V 150MA 30V DO 35 12969 NDP0263 1 N4152 CR9...

Страница 44: ...53 0606 00 8010100 8109999 SEMICOND DVC SE MATCHED 6V 15MA 80009 153 0606 00 0820 153 0644 00 8110000 8219999 TRANSISTOR MATCHED PAIR 80009 153 0644 00 Q820 153 0653 00 8220000 SEMICOND DVC SE 4 MATCH...

Страница 45: ...0 8079999 RES FXD CMPSN 220 OHM 5 0 25W 57668 NTR25J E220E R145 315 0560 00 8010100 8079999 RES FXD CMPSN 56 OHM 5 0 25W 57668 NTR25J E56EO R150 315 0200 00 RES FXD CMPSN 20 OHM 5 0 25W 01121 C82005 R...

Страница 46: ...321 0146 00 8010100 8229999 RES FXD FILM 3240HM 1 0 125W 91637 MFF1816G324ROF R834 315 0511 00 8230000 RES FXD CMPSN 510 OHM 5 0 25W 01121 C85115 R840 315 0221 00 RES FXD CMPSN 220 OHM 5 0 25W 57668...

Страница 47: ...RES FXD CMPSN 5 1 K OHM 5 0 25W 57668 NTR25J E05K1 R1315 315 0392 00 RES FXD CMPSN 3 9K OHM 5 0 25W 57668 NTR25J E03K9 R1317 311 1265 00 RES VAR NONWIR 2K OHM 10 0 50W 32997 3329P L58 202 R1319 315 0...

Страница 48: ...36 OHM 5 0 25W 01121 C83605 R1434 315 0182 00 8010100 8139377 RES FXD CMPSN 1 8K OHM 5 0 25W 57668 NTR25J E1K8 R1434 315 0222 00 8139378 RES FXD CMPSN 2 2K OHM 5 0 25W 57668 NTR25J E02K2 R1435 311 097...

Страница 49: ...R2315 315 0392 00 RES FXD CMPSN 3 9K OHM 5 0 25W 57668 NTR25J E03K9 R2317 311 1265 00 RES VAR NONWIR 2K OHM 10 0 50W 32997 3329P L58 202 R2319 315 0472 00 RES FXD CMPSN 4 7K OHM 5 0 25W 57668 NTR25J...

Страница 50: ...1 K OHM 5 0 25W 57668 NTR25J E05K1 R2430 315 0360 00 B020000 B109999 RES FXD CMPSN 36 OHM 5 0 25W 01121 CB3605 R2431 3150162 00 B010100 B029999 RES FXD CMPSN 1 6K OHM 5 0 25W 01121 CB1625 R2431 315 0...

Страница 51: ...S FXD FILM 1690HM 1 0 50W 75042 CECTO 1690F R2711 315 0202 00 RES FXD CMPSN 2K OHM 5 0 25W 57668 NTR25J E02KO R2712 315 0202 00 RES FXD CMPSN 2K OHM 5 0 25W 57668 NTR25J E02KO R2714 315 0152 00 RES FX...

Страница 52: ...ROCIRCUIT lI ML VERTICAL AMPL SEL 80009 155 0078 13 U1750 155 0078 05 B010100 B019999 MICROCIRCUIT lI ML VERT AMPL SEL 80009 155 0078 05 U1750 155 0078 01 B020000 B139377 MICROCIRCUIT lI ML VERT AMPL...

Страница 53: ...contactor circuit board etc heat radiator etc T Transformer AT Attenuator fixed or variable HR Heater TC Thermocouple B Motor HY Hybrid circuit TP Test point BT Battery Connector stationary portion U...

Страница 54: ...DO NG I ITRANSLATO MODE SWITCH IQI050 QI070 TR IG SWITCH I I u 1 r fTTRRj IGjGiEE l RlW W WTRIGGER 1 1 CH 2 CH 2 CHANNEL I I OUTPUT r 7 TRIGGER r IVOLTS DIVJ I CH IVARIABLEI CH 2 r S j itbNG I i 8 o...

Страница 55: ...7A26 A1 Attenuator board SN B208880 UP 1484 33 Located on back of board C142 R158 R152 A1 Attenuator Board SN B080000 B208879 1484 25...

Страница 56: ...TYLES ARE TYPICAL BUT MAY VARY DUE TO VENDOR CHANGES OR INSTRU MENT MODfFICATlON c 8 8 i om o anode J clip cathode 0 E 8 1484 21 FIG Semiconduetor Electrode Configuutions Scsns bp OldlO U C Qplions Th...

Страница 57: ...067 0589 00 rigid or Tektronix Part No 067 0616 00 flexible CH 1 and CH 2 VOLTS DIV CH 1 and CH 2 Input switches CH 1 and CH 2 POSITION DISPLAY MODE center trace on graticule CH 1 TRIGGER SOURCE MODE...

Страница 58: ...30 CHI ATTENUA TOR D AI Q 40 GI90 Q 50B 1 152 TO PI 13 15V 0 1 1 ATTEt lUATOR e D Al 15V 15V jt TO 1 PIN el90 R145 2X AL n __ _ R _ L _ _ _ _ fIWY l 4I Q 5oA RI Z RIG 1 To I RItA Ii elSo i5V r Ti OI Q...

Страница 59: ...ATTENUATOR SOARD AI r e r r r I i I CIOb CI07 A I I I I B I oll I I I I I I il C131 001 R 1 2 4 0 RI O 1M 1 e r e sol mV 51008 17 r r VOLTS DIV SHOWN IN 5mY I V POSITION 2 5 15Y 12 ISS 1 0 ISV ISV gJ...

Страница 60: ...0 112I12CC 11 11 wlw iLSiL is i D CDD E E m 7A26 R1430 T1432 R1432 R2430 T2430 R2432 Added to back of board Added to back of board C1339 See Parts List for serial number ranges A2 Amplifier Board SN B...

Страница 61: ...A2 Amplifier Board Rear View S30A R1081 1R 1083 CR1050 CR1052 CR1058...

Страница 62: ...A2 Amplifier Board SN B160000 above 148 18B Back of board C1338 C2338 See Parts list for serial number ranges...

Страница 63: ...27 k WID IPENTIFy RIo472 FR Ill I 7 ISV I V CI460 IOENTIFy 3 r DE N T I FY H T Il ZI 514 5 _ 1lJ 49 RIo41 6 910 C V j Cl490 T 001 m 1464 6 I PO S IT IO N P Sk J 1 14 1 2 G D ISk 11 10490 r L I 510 Ii...

Страница 64: ...__f____ B L ________ J S242lA P2 O an I V 0 CH 2 fpCPL ATTE NUATORS I IIr 5 1 gM l U OCPL Y P O AM LI I R SOARD A2 PIO IHDICAT S PAR T OF COMPONENT 15 P IlT OF CIRC UIT 80ARD 7AZfc REV Q OCT 1980 1484...

Страница 65: ...V RZ3S1 4 7 r SEE PARTS LIST FOR EARLIER VALUES AND SERIAL NUMBER RANGES OF PARTS OUTLINED OR DEPICTED IN GREY R24 a 1 5k RI 419 510 3242ZA r C2423 OGI 2 k Ik H Yo 2 P O AMPLIFIeR e OARD A2 NOTES PIO...

Страница 66: ...PARTS LIS VALUES AND S ARL EARLIER RANGES OF P NUMBER OR DEPICTED T ROUTLINED EY ISV R992 1 00k 1 94 IZO BI3 10 13 SIGNAL OUT TRI ER OUT COLUMN ANALOG 10 37 Rloel 0 B35 ON TRIGGER ___ OFF eH 2 T0A U2...

Страница 67: ...A3 Readout Board SN B180000 Up ArtekMedia Digitally signed by ArtekMedia DN cn ArtekMedia o ArtekMedia com ou email manuals ArtekMedia com c US Date 2008 11 16 19 58 09 06 00...

Страница 68: ...t i t mVSIOOC 17 a 10 01 6 2 _15 OI o 1 7 tj 1 tt 1 J VOLTS DIV i i 1 1 O 0 b E I Y f oiJ t T rV O 19 G M TRIGGER lIS s sA I IC lR z 1 L L Lr L_ p Lf I R940 OUT F M 1 Y 17 1 nrf2k R 33 530A I DISPLAY...

Страница 69: ...7A26 See Parts List for serial number ranges A3 Readout Board SN B150000 179999 1484 14 A3 Readout Board SN B149999 below...

Страница 70: ...R940 OUT FROM I I C R 92 0 1 5 J 12 GND I SIGNAL SIGNAL I II OUT FROM OUT FROM 7 II I R840 RSZO I 10 10 9 19DELAY I I GA TE C I IDENTIFY FROM 51 I R13 0 5VDC 6 6 I 7 I I 5 I 4 I A swp 3 t I COM 2 SWP...

Страница 71: ...2 HFC2432 Channel 1 DC Balance HF R2531 LF R1436 Channel 2 DC Balance R2353 HF Channell 2X Gain Channel 2 2X Gain R2317 Channell Input Compensation C 34 Channel 2 Input Compensation C 34 location 01 A...

Страница 72: ...R2531 HF C1721 LF R2431 HF C1432 R2436 LF R1431 HF C2435 Channel 1 Channel 2 DC Balance R2353 C2432 Location of Adjustments SN B16000O above HF C1345 HF Cl338 C106 C110 C114 Channel 2 Input Compensat...

Страница 73: ...chased 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 inc...

Страница 74: ...TIONAL RIVET AND MFG CO 1 21 EAST JEFFERSON ST WAUPUN WI 53963 70278 ALLIED STEEL AND CONVEYORS DIV OF SPARTON CORP 17333 HEALY DETROIT MI 48212 72228 CONTINENTAL SCREW CO DIV OF AMTEL INC 459 MT PLEA...

Страница 75: ...DESCR 214 1035 00 B242000 B249159 SPRING HLCPS 0 3 00 X 0 265 L 84830 LC 026D 4SS 21 0 0905 00 B242000 B249159 1 WASHER FLAT 0 256 10 X 0 05 THK BRS 83385 ORO BY DESCR 15 358 02i 6 00 1 BUSHING PLASTI...

Страница 76: ...0963 00 B010100 B191199 4 CONTACT ELEC GROUNDING OOOEX ORD BY DESCR 131 0963 00 B191200 B149999 CONTACT ELEC GROUNDING OOOEX ORD BY DESCR 45 131 0907 00 4 CONTACT ELEC GROUNDING CU BE ALBALOY PL 80009...

Страница 77: ...ESISTOR VAR SEE R1423A R2423 REPL 70 361 0515 00 B150000 4 SPACER SWITCH PLASTIC 80009 361 051 5 00 71 214 1190 02 B150000 2 CPLG SHAFT RGO 0 125 00 TO 0 081 OO AL 80009 214 1190 02 72 214 1136 00 B15...

Страница 78: ...526 48283 029 103 136 0252 04 B010l00 B072899 162 SOCKET PIN TERM U W 0 Q16 0 Q18 DIA PINS 22526 75060 007 136 0252 07 8072900 120 SOCKET PIN CONN W O DIMPLE 22526 75060 012 104 136 0350 00 B072900 14...

Страница 79: ...00 B010100 B251089 CA ASSY SP ELEC 8 26 AWG 12 0 L RIBBON 80009 175 5419 00 175 5419 01 B251090 1 CA ASSY SP ELEC 8 26 AWG 12 0 L RIBBON 80009 175 5419 01 131 0707 00 8 CONTACT ELEC 22 26 AWG BRS CU B...

Страница 80: ...Scans by ARTEKMEDIA 2003 2005 REV EN OV 1979 7A26 DUAL TRACE AMPLIFIER m X 1 l r o C m C...

Страница 81: ...Part No Eft Dscont Qty 2 070 1484 01 1 2 3 4 5 Name Description STANDARD ACCESSORIES MANUAL TECH INSTRUCTION REV OCT 1984 Seans by Ouao Tee Options Mfr Code Mfr Part Number 80009 070 1484 01 7A26 DUA...

Страница 82: ...o printing and shipping requirements we can t get these changes immediately into printed manuals Hence your manual may contain new change information on following pages A single change may affect seve...

Страница 83: ...2 Photo pages are typically scanned in gray scale mode at 600 dpi 3 Schematic diagram pages are typically scanned in black and wnite at 600 dpi unless the original manual had colored high lighting as...

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