Tektronix 7603 Instruction Manual
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Tektronix 7603 Instruction Manual

Tektronix 7603 Instruction Manual

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7603/R7603
OSCILLOSCOPE

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  • Page 1 7603/R7603 OSCILLOSCOPE...
  • Page 2 BEFORE READING PLEASE CHECK FOR CHANGE INFORMA TION A T THE REAR OF THIS MANUAL. THIS MANUAL REPAINTED NOVEMBER 1977 7B03/R7B03 OSCILLOSCOPE SE RVICE Serial Number TektroniK, Inc . .. P.O. Box 500 Beaverton, Oregon 97005 Phone: Cables: Tektronix 644-0161 070·1429·00...
  • Page 3 1972 bV TttktroniM.lnc .. Beaverton, Oregon. Amadea. Printed in the United SI.les of All rtghts reserved. Contenl$ of this publication m-v nol be reproduced in .nv form without permission of Tektronix. I�. foreign TEKTRONIX productlcoveted by U.s. U.S.A . • nd patents pending. .nd/Of fo ...

  • Page 4: Table Of Contents

    7603/R7603 Ser'Yic:e TABLE OF CONTENTS P . .. P ... SECTION 4 CIRCUIT DESCRIPTION SECTION 1 OPERATING INSTRUCTIONS Block Diagram 4·' Preliminary Information 4·' Display Definitions '·2 Circuit Operation Logic Fundementals 4·3 Plug-in Units '·3 Main Interface 4·6 '·3 Controls and Connectors Logic Circuit 4·6...
  • Page 5 7603 Features The TEKTRONIX 7603 Oscilloscope is a solid state, lighl weight instrument designed for general-purpose measuring applications, This instrument has three plug,in compartments that accept TEKTRONIX 7-series plug-in units to form a complete measurement system . The two plug-in compartments on the left are connected to the vertical deflection system.

  • Page 6: Operating Instructions Section

    The 7603 can be operaled from either a 11O·volt or a intended; brown for 1 TO·volt nominal operation and red for 220·voll nominal line·voltage source. In addition, three 220·volt nominal operation.

  • Page 7: Display Definitions '·2

    Channel switching is operating limits before power is applied. sequential and occurs at the end of each sweep. The 7603 is cooled by convection air flow through the Chopped Mod. instrument. Components which require the most cooling are mounted externally on a heat radiator at the rear.

  • Page 8: Plug-In Units '·3

    POWER Pushed in order TEKTRONIX Part No. 016-0155·00. 2_ Connect the 7603 to a power source which meets the When the 7603 is calibrated in accordance with the voltage and frequency requirements of this instrument. The calibration procedure given in this instruction manual, the applied voltage should be near the center of the voltage vertical and horizontal gain are standardized.
  • Page 9 Operating Instructions-7603/R7603 Service FUNCTIONS OF CONTROLS AND CONNECTORS Front Panel Light: Indic:a!es that the powa. switc:h i, on and Ihat Ihl inst,ument is c:onnec:,ed to a line voltage sourci. INTENSITY-Conlrols b�l!Ihtness Ihe dIsplay. Conl,OI IS ;noperuive when ho.i¥onlal eompa.tment Vleanl.
  • Page 10 Operating Instrllctions-7603/R7603 Service �O ® Rear Panel FUSE-Line voll""e fU$e for InSlrument. S S READY OUT _Provides an eXllttnal singl, $We"" "adv indicalor 5ignal .fter Ih, singl, $Weep has been reset. sweep EXT S S RESET IN_Remollt single resel. EXT 2 AXIS IN_lnpul conneclor lor infensi"" modulation of the CRT di$play.
  • Page 11 15. A correct display in both steps 12 and 14 indicates position. This is because there is no input signal connected that the 7603 Vertical Deflection System and the vertical '·6...

  • Page 12: Simplified Operating Instructions '·7

    If the display input. Check that peak-to-peak amplitude of the displayed is outside the given tolerance, either the 7603 or the signal is four divisions maximum. time-base unit needs to be recalibrated. Refer to the Calibration section of this manual, and to the time-base unit manual for adjustment procedure.
  • Page 13 Operating Instructions-7603/R7603 Service 3. Install a 7B·series time·base unit in the horizontal 2. Press the LEFT button of the VERT MODE switch. compartment. Install a 7B·series time-base unit in the horizontal Press the VERT MODE button of the TRIG SOURCE compartment_ switch.

  • Page 14: General Operating Information '·9

    Operating Instructions-7603/R7603 Service Connect the X·signal to the amplifier unit in the Delayed Sweep - Single Trace horizontal compartment. The following procedure will provide a delayed sweep display of a single·trace vertical unit. Connect the Y ·signal to the amplifier unit in the leh vertical compartment.
  • Page 16 Operating Instructions-7603lR7603 SelVice plug-in units are algebraically added and the time-base unit The CRT bezel of the 7603 provides integral mounting is triggered from the resultant signal. Use of the LEFT or for a TEKTRONIX Oscilloscope Camera. The three pins...
  • Page 17 DC to 1 0 megahertz (input voltage sweep). The flexibility of the plug-in units available for use derating necessary above two megahertzl. The maximum with the 7603 provides a means for applying an external input voltage should be limited to 10 volts (DC plus peak signal...
  • Page 18 7603. If this mode of operation is desirable, contact your local TEKTRONIX Field...
  • Page 19 Oscilloscope and its associated plug-in units provide a very flexible measurement system. The capa­ If the Tektronix instrument is to be shipped to a Tektronix bilities of the overall system depend mainly upon the Service Center for service or repair, attach a tag showing: plug·in units that are chosen for use with this instrument.

  • Page 20: Specification

    Information given in this manual applies to the R7603 minutes. limits and tolerances given in the Supplemental Oscilloscope also, unless otherwise indicated. The A7603 is Information column are provided for user information only, electrically identical to the 7603, but it is adapted for should interpreted Performance...

  • Page 21: Triggering 2·2

    Specification-7603/R7603 Service VERTICAL DEFLECTION SYSTEM {conti Characteristic Performance Requirements Supplemental Information Difference I n Delay Between less. Vertical Compartments Left vertical unit only. Selected VERT MODE sw Vertical Display Mode LEFT: AL T: Dual trace, alternate between verti- cal uniu.

  • Page 22: Calibrator 2·3

    Specification-7603/R7603 Service CALIBRATOR Characteristic Performance Requirements Supplemental Information Waveshape Positive-going SQuarewave voltage selected by internal jumper). Voltage Output Range 40 mV, 0.4 V, and 4 V . Into 1 Mn load. Voltage Output Accuracy ° + 1 5 ° C to +35 Within °...

  • Page 23: Character Generator

    Specification-7603JR7603 Service CHARACTER GENERATOR Supplemental Information Characteristic Performance Requirements Adjustable. Character Size Selected internal READOUT mod. Free·run independent of sweep. Modes of Operation switch. Triggered after sweep. DISPLAY (CRT) and OPTIONS Characteristic Performance Requirements Supplemental Information Cathode Ray Tube Type 7400.

  • Page 24: Power Source 2·5

    Specification-7603/R7603 Service POWER SOURCE Performllnce equire Supplementlll Information CharCK;teristic Line Voltage Ranges 100 V ± 1 O%. 1 10 V nominal 1 1 0 V ±10%. 120 V ±10%. 200 V ±10%. 220 V nominal 220 V ± 1 0%.

  • Page 25: Physical 2·6

    STANDARD ACCESSORIES Standard accessories supplied with the are qiven in the Mechanical Parts list illustrations. For optional accessories 7603 available for use with this instrument, see the Tektronix, Inc . . catalog. Tima/Oiv sattirl\!. Referenced REV. MAY 1974...
  • Page 26 DC to 200 MHz Ext Amplifier For more complete specifications on plug-in units for the 7871 Delaying Sweep 2 nsJdiv DC to 200 MHz 7600-Series Oscilloscope System, refer to the TEKTRONIX 7892 Display Switching 2 ns/div DC to 250 MHz: Catalog. 2·7...

  • Page 27: Test Equipment Required

    To assure instrument accuracy, check the calibration of tion. Therefore, the specifications of any test equipment the 7603 every 1000 hours of operation, or every six used must meet or exceed the listed specifications. All test months if used infrequently. Before complete calibration,...
  • Page 28 Generator. quency constant- hertz; reference frequency, check. Vertical bandwidth check. Vertical amplifier iso· amplitude signal kilohertz; output b. TEKTRONIX 1 9 1 Constant Ampli- generator variable from lation check. Horizontal amplitude, tude Signal Generator. bandw idth check. five millivolts to five volts...
  • Page 29 IJroet:dure T E K T R O N I X Part U",d type, RF-58/U; 0 1 2·0076·00 ( l S-inch). TEKTRONIX length, signal interconnection. Part No. 0 12·0057-01 (42-inchl. and 42 inches; connectors, BNC. ohms; T E K T R O N I X N o .

  • Page 30: Calibration Procedure

    C for best overall accuracy. Index to Calibration Procedure Power Supply 1 . Remove the sides and bottom covers from the 7603 or the top cover and side panel from the R7603. 1 . Adjust -50 Volt Power Supply Page 3-5 2.

  • Page 31: Power Supply

    3-18) for a meter reading of exactly -50 volts. Adjust Auto Focus Compensation and Page 3-16 Operating Levels e. INTERACTION-Change in setting of R 8 8 1 may affect operation of all circuits within the 7603. Calibrator Page 3·16 Adjust Calibrator Output Voltage 2. Check Remaining Power-Supply Voltages Page 3·17...

  • Page 32: Display And Z·axis

    Calibration-7603/R7603 SeNies DC Voltmeter (VOM) 7A15A plug· in unit Time·mark generator Medium·frequency generator BNC to pin·jack cable la·inch 50·ohm BNC cable 42-inch 50-ohm BNC cable Readout BOilrd Remove Five·nanosecond G R cable 50-ohm in-tine termination 1 1 . 1 2 .

  • Page 33: Adjust Astigmatism

    Set the test�scilloscope for V/division, DC input. b, Set the time base plug-in in the 7603 to 50 ms/ d. Set the calibration fixture Position control for a division and the test-oscilloscope time base to 1 sec/div.

  • Page 34: Adjust Y-Axis Alignment

    Calibration-7603/R7603 Service c. CHECK-Trace aligns with the center horizontal line i. Set the time-mark generator for both one· and within 0.1 division. O.l-millisecond markers. (see -Trace Rotation adjustment R 1 181 Position the baseline of the markers far toward the ADJUST Fig.

  • Page 35: Vertical Deflection System

    Calibration-7603/R7603 SelVice c. CHECK-Display compressed within graticule area. d. Increase 7A l5A deflection factor until the compressed display is reduced in amplitude. e. Release the BEAM F I N O E R switch. f. CHECK-Display remains within graticule area. g. Disconnect all test equipment and remove the plug.in units.

  • Page 36: Check Vertical Linearity

    Calibr.tion-7603/R7603 Service f. Set the VERT MOCE switch to RIGHT. TABLE 3-2 High.Frequency Compensation g. CHECK-Deflection between the second and eighth traces should be the same as part d ±1%. Prim.-y Area Pull!! Affected Adjustment Best Rate Swee p h. ADJUST -If necessary, re·adjust R447 for correct...

  • Page 37: 7 . Check Vertical Amplifier Isolation

    Calibration-7603/R7603 Sal'Yice k. Disconnect all test equipment. f. CHECK-Output frequency must 1 1 0 megahertz or higher if using test fixture. If using amplifier. systems specifications. Check ADD Operation g. Remove the calibration fixture from the right vertical a. Install the other 7A 15A in the left vertical compart­...

  • Page 38: Triggering System 3-'2

    CaJibration-7603/R7603 Service Check Vertical Chopped Mode Operation Control Settings a. Connect the 10X probe to the external trigger input Set the controls as given under Preliminary Control of the 7853A. Settings. 2 1 . b. Connect the probe tip to TP67 (see Fig. 3-4).

  • Page 39: Horizontal Deflection System 3 -'3

    Connect lOX probes to both inputs of test oscilloscope. Connect the probe tips to the horizontal deflection plate connectors of 7603 (be sure probes compensated ) Set both channels test oscilloscope for a vertical deflection factor of 1 .0 volt/division (ten volts/...
  • Page 40 Calibration-7603/R7603 Service f. ADJUST -Horizontal Gain adjustment RS12 (see Fig. 24. Check/Adjust Horizontal Amplifier Gain and 3·6) for exactly eight divisions of deflection between the Low·Frequency Linearity second and tenth traces. a. Install the 7A lSA in the horizontal compartment and the 7BS3A in the vertical compartment.

  • Page 41: Z-Axis And Auto Focus System

    Calibration-7603/R7603 Service the five·nanosecond G A cable and the SO·ohm G R in·line 7A lSA b. Set both units for a deflection factor of 10 termination. millivolts/division with DC input coupling. medium·frequency generator for c. Connect the low· frequency signal generator to the...

  • Page 42: Calibrator 3·16

    Calibration-7603/R7603 Service I. Disconnect aU test equipment. g. ADJUST -the INTENSITY control for three divisions of vertical deflection on the CRT. Position the display the positive leading edge of the waveform is displayed. CALIBRATOR positive h . ADJUST -Cl l S8...

  • Page 43: Signals Out 3·17

    Calibration-7603jR7603 Service e. Connect the precision DC voltmeter between the 5. Test Oscilloscope 0.4 V Calibrator pin·jack and pin jack ground. Check S S R EADY OUT f. CHECK-Meter reading; OA volt ±0.OO4 volt (within a. Connect a voltmeter to the S S READY OUT "...

  • Page 44: Readout Operation 3-'8

    This completes the calibration/checkout procedure for If the has been r e placed, the words ident i f y may the 7603. Disconnect test equipment and replace the not be positioned horizontally as described i n steps side panels. If the instrument has been completely checked 37a, e, and f .

  • Page 45: Circuit Description

    Section 4-7603 / R7603 Service C I R CU IT D ES C R I PTION Introduction The internal trigger signals from the vertical plug-in units are connected to the Trigger Selector circuit. This circuit This section of the manual oontains a description of the...
  • Page 46 Circuit Description-7603 / R7603 Service Vlrtlal V.rlie.1 signal. from Amplifier InteriKe vertical plug·;n o;om · partments <Y Trigger Tripr signals from Selec:to. v,"ical plug·in �om· R_out partments System Trigge. lign.1 ho,izontal plug·in �omPil·tment Horitontel Horitontal signal Amplifier f r o m hotilonta ·...
  • Page 47 Symbols etc., refer to the following textbooks: The operation of circuits within the 7603 which use digital techniques is described using the graphic symbols set 4·' Robert C. Baron and Albert T . Piccirilli, "Digital logic forth in military standa�...
  • Page 48 Circuit Description-1603/R1603 Service TABLE (cont) Basic Logic Reference Description Input/Output Ta�. Dtyice Symbol A---{>- X Input Output I nverler A device with one input and one output. The output state is atways opposite to the input state. lO·state A smali circle at the input or output indicator of a symbol indicates that the LO state is the significant state.
  • Page 49 Circuit Description-7603/R7603 Service (cont) TABLE Basic Lotic Reference Description Input/Output Tlbl. Symbol Output Input Set-Clear bistable device with two inputs (J·K) Flip . a'" two outputs (either or both Flop outputs may be u500 ) . The outputs No chan ge...

  • Page 50: Main Interface 4·6

    Circuit Description-7603/R7603 Service LOGIC CIRCUIT NOTE Logic symbols used on the diagrams depict the logic The Logic Circuit develops control signals for use in function and may differ from the ma facturer's other circuits within this instrument and in the associated data.
  • Page 51 Vl1"liu' Mod. VertiQI Mode Vertical Switc:h Control Vertic.' Mode Mod. CR124, CRI25, Buffer Command CRl30, CRlS5, 0132, 0137 (Mai". CRI72 freme' Left Vertical Cloc:k Unit Vertical Gene."or Vertical Plug,ln Chop Chop Counter Chop Buffe. Vertical U123 Sign" Chopped 0142,0147 BI.okIO{! Right Vendal Unit...
  • Page 52 Circuit Oescription-7603/R7603 Service maximum. This maximum level of I t is determined by Logic stage is shown in Fig. 4-3. Only the components current I , i n the base circuit of U99D established by essential to operation of this stage are shown in this networks R76·R77 and...
  • Page 53 Circuit Oescription-7603/R7603 Service When readout information is to be displayed on the limiting. the Intensity limit input goes to ground level in CRT, the Z-Axis shutdown goes This forward biases the plug·in unit. This reduces the level of I , at the base of U99D and therefore reduces 0180, and it saturates, shunting I "...
  • Page 54 Description-7603/R7603 Circuit Service Vertical Chopped Blanking C59 cannot change its dlarge instantaneously, the sudden change in voltage at the emitter of 01 pulls the emitter of The Vertical Chopped Blanking stage is made up of the positive also, to reverse-bias it. With 02 reverse biased, remaining half of integrated circuit U55B, Fig.
  • Page 55 Circuit Oescription-7603/R7603 Service RIGHT VERTICAL UNIT CHOPPED Whenever this instrument is turned on, the Vertical OPERATION Chopped Blanking pulses are being produced at a two­ megahertz rate_ However, these pulses are available as an If the right vertical unit is set for chopped mode,...
  • Page 56 Circuit Oescription-7603/R7603 Service CHOP Mode ( ... rd Left Plug·ln Mode IChop Inhibitl Vertical Mod. Command RighI P1Uf·ln Mode IChop Inhibit! Vertical Cl'Iopped Del.y R.mp Blenking comp.retor (A) U55B Input Output Conditions 1 . ' • CHOP (vert! • •...
  • Page 57 Circuit Description-7603/R7603 Service Mainframe Chop Signal to Vlrtic:al Modi Control stage Plug·ln Drive Ckop 2MHz Clock Pulres from Clock Genlrator stage U123B U 1 23A stage. Detailild logi Fig. 4-7. c diagram of Chop Counter the Plug·ln Chop Buffer stage. Idealized waveforms showing vertical mooe;...
  • Page 58 Oescription-7603/R7603 Circuit Service with direct·set and direct-clear inputs (see Table 4·1 for H I , the right vertical unit is displayed and when it switches to LO, the left vertical unit is displayed. operating details)' The connection between the output "...
  • Page 59 Circuit Oitscription-7603/R7603 Service input. Therefore, this stage is now operating as a divide·by­ one counter rather than a divide·by-two counter as described previously. The output under this condition is Mode used only by the Plug-In Binary stage. 0150 Since the Vertical Binary stage can change output states only at the end of each sweep.

  • Page 60: Trigger Selector

    Circuit Description-7603/R7603 Service Plug·ln Display Channel 2 Plug·ln Command Alternate Command 0167 Display Right Command Plug·ln Binary U156B di ag ram of P1ug·ln Binary end Plug·ln Altern"te Buffer ftIt98S. Fig. 4-12. Logie the base of 0314 is connected to ground through the AL T Output Buffers and RIGHT sections of S1021, CR1021 and C R 1026.
  • Page 61 S1021 VERT MODE � .p" • CHOP RIGHT LEfT � - - - - ,... � I- - - - - _ _ _ - • • � � 0-- -+-5 V o-- -+- 5 V +5 V 0--- +5 V �...
  • Page 62 Circuit Description-7603/R7603 SelVice the trigger signal from the right vertical unit at pins 10. The output signal at pins 1 2 and 1 3 is a differential TRIG SOURCE switch positions signal. The sum of DC current at pins 1 2 and 1 3 is always equal to the sum of the DC currents at pins 1 , B, 9, in all modes.

  • Page 63: Vertical Interface

    Circuit Dncription-7603/R7603 Service diegram of the Vertical Interface circuit. A schematic of this circuit is shown on diagram 3 at the rear of this manual. Output Input Vertical Channel Switch The Vertical Channel Switch stage determines which input signal provides the vertical signal to the Delay·Line Driver stage as controlled by the Mainframe Vertical Mode Command from the Logic circuit.

  • Page 64: Vertical Amplifier 4·20

    Circuit Description-7603/R7603 Service Readout system is ready to display Readout information, the level at pin 6 goes H I . This level blocks the signals from both vertical compartments and there is no output from Output U214 under this condition. Transistor Q238 will conduct and provide about the same current for the output stage as under normal conditions.

  • Page 65: Horizontal Amplifier 4·21

    Circuit Oescription-7603/R7603 Service third amplifier stage. The resistive network connected to pins determines the gain of the Vertical 3, 6, ..' ..Amplifier. Vertical Gain adjustment sets the gain of R447 8.1.� Ver1ieal RMdout_ the second amplifier stage to determine the overall gain of 0407.0415...
  • Page 66 Circuit Description-7603/R7603 Service Display limited Current from Vertiul Amplifier Horizontal deftection Right Output " gnal right Amplifier defle<:lion ptate 0539, 0551 of CAT 0558, 0560 HOfilontat CRS)1 " gna. from Horizontal hor,zontal Channel plug·in Switch COmparlment CR53 Horizonlal defhlClion LftflOutput...

  • Page 67: Calibrator And Front Panel Switching

    Circuit Description-7603/R7603 Service Output Oscillatot Vollage 01061, 01066 01070. 01072 Divider r--- -< Fig. 4--20. C�libt;otot datailed block diagram. turned off, and since there is no current through it, its CALIBRATOR AND FRONT PANEL collector goes positive to produce the positive portion of SWITCHING the square wave.

  • Page 68: Crt Circuit

    Circuit Description-7603/R7603 Service The output of the Oscillator stage is connected to the divider made up of resistors through This R l 079 R 1 OS5. base of This signal controls the conduction of 01070. divider is designed to provide a low output resistance in the comparatOf 01070·01072.
  • Page 69 Circuit Service Description-7603/R7603 current for the High·Voltage Oscillator after the stage optimum focus. Fig. 4·21 shows a detailed block diagram of reaches operating potentials to pro ... ide a regulated high. the CAT Circuit. A schematic of this circuit is shown on voltage output.
  • Page 70 Circuit De$Cription�7603/R7603 Service enough negative so the trace is blanked between sweeps. are forward biased by this positive change, which in turn Under normal conditions. this biases the control grid about increases the conduction of 01214. This results in a greater 80 volts more negative than the cathode.

  • Page 71: Low-Voltage Power Supplv 4-2

    This configuration extends the However, the -50 V Sense feedback configuration over· regulating range of the 7603. comes this problem since it obtains the feedback voltage from a point as close as practical to the load. Since the current in the -50 V Sense line is small and constant, the For the R7603 a fan provides forced·air cooling.
  • Page 72 5801 +130 V +130 V Reel" " r CR806 F855 +130 V F ..l JO V Ser,es R ..' .. tor 0850 '+50 V • � � � +50 V Series R-eul't or , .. 0874 Current +50 V...
  • Page 73 -+-5 V Series 5 V RKlifi., ReQulalor CAB20. CR821 0988 '5 V RB22 Currenl A989 .5 V limi'il19 Un. lri9\ler Feed b ack U973A,B -t 5 V 5,n$ll Amplifier to plug-in Feedback compatlments U973C,D , E 0985 +5 V R82l •...
  • Page 74 Circuit Description-7603/R7603 Service voltage drop across to reduce the conduction of R896 in the V Feedback Amplifier and limit the 0896 conduction of is connected as a constant· Low-Voltage Milin 0903. 0910 RegUlator Interlace current source for 0908-0909. bGII , d ,.,,'...

  • Page 75: Signal Out Board 4·31

    READOUT SYSTEM DC Fan (R7603 only) The Readout System in the 7603 provides alphanumeric The DC fan (OPtion 5) uses a brushless, Hall·effect display of information encoded by the plug in units. This motor.
  • Page 76 Fig. 4-24 shows the area of the I n the 7603 Readout System, a word can consist of up graticule where the readout from each plug-in unit is to ten characters.
  • Page 77 C·l C·3 C� C� C·7 C·l0 CURRENT > {MIl.LI- AMPERESI NUMBER .·1 < > R·2 SHIFT' ADD' ADO' SHIFT' PREFIX IDENTIFY PREFIX ZERO ZEROS ANO ADD ONE ZERO " SKIP' R� DECIMAL' DECIMAL' DECIMAL' DECIMAL' DECIMAL' R·7 POINT POINT POINT POINT POINT �...
  • Page 78 Circuit Description-7603fR7603 Service output current on one of ten lines. The outputs of the Column Decoder stage are identified as C-l to C-l0 s • (column 1 to 10) which correspond to the column information encoded by the plug-in unit. Likewise, the outputs of the Row Decoder stage are identified as R-l0 (row 10) which correspond to the row...
  • Page 79 Circuit Oescription-7603/R7603 Service stage after the tenth time·slot. Thi Word Trigger pulse Another operation of the Zeros Logic and Memory stage advances the Channel Counter to display the information is to produce the IDENTIFY function. When time·slot 1 is from the next channel or plug·in. It also provides a reset...
  • Page 80 Service Circuit Oescription-7603/R7603 Control put"" to Vert. In· PlU("," Readout Mode Mr., HOf"i,. Inll •. CRTCkt from Output lotic 1119'. Z·Axis Time�o1 put,., Tj�-StOl Time. 10 ",.,tiul .nd Count ... 1'IO,;lonlal plug- U2126 c o m pl . t ·...
  • Page 81 Circuit Description-7603/R7603 Service NOTE: I n d ieatH numbM of linH. (Strobe) IA·3I Zeros L(I9ic: � � and Memory IC· '" U22 3 2 Where no number (Word IIP9Nrl; thefe trip,) (Ready) line. IW", I.;"'.) Polition Counter TS-3) (TS-l, TS-5, IR-7.
  • Page 82 Circuit Description-7603JR7603 Service Pin 16 Pin 6 Z·Axii Lope OFF Cornl'Ml'ld PI" 14 Pin 10 .net Vertlc.l ". Horilonal Chon,,", s..�h OFF Com_. PI" 13 Trill'll _ Pi" 5 -D V InteNity �" V Pin 1 2 Ch ..et., Ten OKiliOKOC"...
  • Page 83 Circuit Description-7603/R7603 SelVice timing sequence began. However, character-generation does " not start until readout intensity level has been established. The triangular Character Scan ramp runs negatively from about -2 volts to about -8.5 volts and Pin 6 then returns back original level.
  • Page 84 Circuit Oescription-7603/R7603 Service Time-Slot Counter Time-Slot Counter U2126 ;s a sequential switch which directs the trapezoidal waveform input at pin 8 to one of its output lines. These time-slot pulses are used to interrogate the plug-in units to obtain data for the Readout System.
  • Page 85 Service Circuit Oescript ion-7603/R7603 The Single·Shot Lockout stage remains in this condition stage through C2155. Pin 1 3 of U 2 1 550 goes LO to enable until a positiveiloing trigger pulse is applied to pin 8 of the Time-Slot Counter and Timer stages for the next U 2 1 20C.
  • Page 86 Circuit Description-7603/R7603 $enlice l'1ug-ln Unit 75 K AltO '50 K A nillog R l l ' • • Dm to R20 ISO K TS-2 R_out A 33 Syft_ • '20 '60 • T5- 3 150 K B3Z / .'30 '3 ' Unc:II l ibr�_...
  • Page 87 Circuit Oescription-7603/R7603 SeNice �""-S1 0 t time-slot 1 will be increased two units for a total of four units of column current. This addresses an instruction in � the Character Selection Matrix which reduces the prefix • Row " "...
  • Page 88 Circuit Service Oescription-7603/R7603 gives the eight combinations of the Channel Address No. 1 02223-02229 also provide display·skip action. The code and the resultant channel which is selected with each End-of-Word level connected to their emitters through combination. These stages have nine inputs and provide a R2229 is only during time-slot 1 .
  • Page 89 Circuit Description-7603/R7603 Service Time&ot Time-Slot 6 TIme-Slot Column 1 Mo � 'Y '0" CAdd Mo�.., • Column '0" (Add Column (Reduct Colum n .. prefixl Column 10 Stor. Command Time.s!ot 1 to.1I memories Enabl. to.1I mtlmor;" "_3 Word Triggltr to.1I mtlmories Fig.
  • Page 90 Service Circuit Description-7603/R7603 Input Pins of Zeros Logic: TimeSlot Command Memory � � , � , � , � , IDENTIFY Add two prefix DICr'_ " prefix and ',,"0 .dd one Fig. 4-35. Tvpic;al output waveforms for Zeros Logic: Ind M,mory stage operation U2232).
  • Page 91 Circuit Dncription-7603/R7603 Service (lOO the CRT. In a similar manner, any of the 50 characters from m microamperes column current; column 1 ) to shown in the Character Selection MatriX can be displayed no prefix (zero column current; column zero) so only the unit of measurement encoded during time-slot 9 is dis­...
  • Page 92 Circuit Descript ion-7603/R7603 Service position current from the Decimal Point and Char­ Position stage is added the X (horizontal) input Oeci�l·polnt location .n­ eoded du.i"'ll thi' tirne-slot signal space characters hor ontal y on t CRT (see no diJPI,y us discussion). The Ready...
  • Page 93 Circuit Description-7603/R7603 Service . ! .11 i � r ,. i, e _ < . ! "" J U _ . >� " <; . d ' � ' I H .. i� " c t l _ " >...

  • Page 94: Maintenance

    Operation without the panels in place necessitates more frequent cleaning. The power unit can be slid out of the back of the 7603 to gain access to the Logic and Rectifier circuit boards and for power-unit maintenance. The power unit can be left connected to the rest of the instrument so that it can be operated in this position for troubleshooting.

  • Page 95: Troubleshooting

    Semiconductor Checks circuit boards. Periodic checks of the semiconductors in the 7603 are The high·voltage circuits, particularly parts located in not recommended. The best check of semiconductor the high·voltage compartment and the area surrounding the performance is actual operation in the instrument.
  • Page 96 Diagrams. Complete circuit diagrams are given on fold­ wound resistors are used in the 7603. The resistance values out pages in the Diagrams section. The component number of wire-wound resistors are usually printed on the body of and electrical value of each component in this instrument component.
  • Page 97 Maintenance-7603/R7603 Service . .. < > < " •• � � < ---- -- -- -- -- -- -- - < .. • Fig. 5-2. boards il1 lexatiol1 of cireuit 7603. 5·4...
  • Page 98 Maintenance-7603/R7603 Service Loe.fion of c:orc: Fig. &.3. the R760J. i, bo.rdl in...
  • Page 99 Description: Frequency response, DC to megahertz; Equipment. Before proceeding volu / division. A lOX probe should be deflection factor, with troubleshooting of the 7603, check that the equip­ used to reduce circ�it loading. ment used with this instrument is operating correctly. 5·6...
  • Page 100 Maintenanoe-7603/R7603 Service €1 � • • • • " • • Plastic-Cased TransistofS 1 ' 1 ..: • • " • • • • • Indtx Fit. Electrode configuntion for Mmkonductors l,IMd in Ihis instrument. 5-5. REV. 8, MAR. 1975...

  • Page 101: A. Sem Iconductors

    Use the procedure given in the Calibration components in the 7603. Components which are soldered section to adjust the power supplies. in place are best checked by first disconnecting one end. This isolates measurement...
  • Page 102 Maintenance-7603iR7603 Service " I § � .� � >­ • < >­ • • • >- >­ < " • " � I E !!' e � • � : , ,: � > Fig. 5·6.

  • Page 103: Corrective Maintenance 5·10

    7603 can be obtained through your an ohmmeter set to the R X k scale. The diode resistance local TEKTRONIX Field Office or representative. However, should be very high in one direction and very low when...
  • Page 104 Service Mlintanance-7603/R7603 Component Replacement Ordering Parts. When ordering replacement paru from Tektronix, Inc., include the following information: W A R N I N G 1. Instrument type. Disconnect the instrument from the power source before replacing components. 2. Instrument serial number.
  • Page 105 Meinunanc:e-7603IR7603 Servk:e 1. Remove the securing screws. Remove the three screws from inside each plug-in compartment which hold the plug·in interface connectors to the chassis (total of nine screws). Also remove the Pull out on the edges of the board until the board hexagonal posts which secure the ground straps to the Main clears the interconnecting terminals.
  • Page 106 Maintenance-7603/R7603 Service Unsolder power transformer wires replaced if a large number of the contacts are damaged. An connected to the top of the board . Use a vacuum-type alternative solution is to refer the maintenance of the damaged Main Interface board to your local TEKTRO N I X desoldering tool to remove the solder from the hole in the Field Office or representative.
  • Page 107 7603. Two types of mating connectors are used for these interconnecting pins. If the mating connector is mounted on a plug-on circuit board , a special socket is soldered into Some of the pin connectors are grouped together and the board .
  • Page 108 CRT anode plug from the jack Switch Replacement. The pushbutton switches used in located on the front of the high·voltage compartment. the 7603 are not repairable and shook:! be replaced as a unit Ground this lead to the chassis to dissipate any stored if defective.
  • Page 109 Maintenance-7603/R7603 Service To replace the encapsulated assembly, remove the NOTE four screws located on the bottom of the High-Voltage circuit board (remove board to reach screws). All solder joints in the high-voltage compartment should have smooth surfaces. Any protrusions may...

  • Page 110: Rackmounting

    Introduction The slide-out tracks provided with this instrument permit The R 7603 Oscilloscope is designed to be installed in a it to be extended out of the rack for maintenance and standard 19-inch wide rack. It can be mounted in racks calibration without removing it from the rack.
  • Page 112 Rackmounling-7603/R1603 Service Rear-Deep Rack Configuration : IAI Froot ICI Rear-Shallow Rack Configuration: Rear left rear support corner of bracket Stationary B" section of "" slideout Rear iJ-J " track B" left rear "" corner of "" Spacer B" cabinet rack ""'...
  • Page 113 Service Rackmounting-7603!R7603 Loa.n screws on both sides. Allow slide, to IHk prOper width. Center inltrument. 4. Retighten lerews. 6·5. Fill. Adjustinll the slide·out tracks for smooth slidinll &Ction. screws and washers shown in Fig. 6·2. If the securing hole is...
  • Page 114 Rackmounting-7603/R7603 Service 2. 3 12 t5." 1 TOP VIEW .3 1 2 t.7 - -- 11.625144.171 •• 00 13. '" ARANCE OMMEND EO COOLING - -- '.OOO CLEAI'IAN NOTE: RECOMMENDEO DIMENSIONS IN .300 1 . 761 FOR COOLING 1 PARENTHESIS ARE CLEARANCE MIN t21 �...

  • Page 115: Electrical Parts List

    Section 7-7I03IR REPLACEABLE ELECTRICAL PARTS PARTS ORDERING INFORMATION Replacement parts are available from or through your local Tektronix, Inc. Field Office or representative. Chan-ge. to T8I(tronix Instruments are soma times ma!Se to accommodal8 Improved components as they become available, and give you the benelit of the latMt circuit Improvament.
  • Page 116 CROSS INDEX-MFR. CODE NUMBER TO MANUFACTURER City. State. Zip Mfr. Code Manufacturer Address AVENUE , NEW YORK, NY 200 PARK 54TH FLOOR 10017 ooooL HA '1'SUHI'l'A ELECI'RIC DIV. co . , P O BOX 128 PICXENS , sc 29671 00853 SANGAM:) EIZCTlUC S .
  • Page 117 Tektronix Serial/Model No. Ckt No. ParI No. Dscont Name & Description Code Mtr Part Number SOARD 670-1956-00 BOI0I00 8159999 ASSY,MAIN INTERFACE BOO09 670-1956-00 670-1956-01 B160000 ASSY :MAIN INTERFACE 80009 670-1956-01 CKT BOARD '" BOARD 670-1370-02 BOI0I00 B129999 ASSY:LOGIC 80009 670-1370-02 '"...
  • Page 118 Tektronix Serial/Model No. Dscont Name & Description Code Mfr Part N umber Ckt No. Part No. C AP. ,FXD,MlCA D:200PF,l\, SOOV 008!>3 Ol!>SF20U'0 283-0672-00 C AP . ,FXD,CER D1:24PF,S\,SOOV 72982 301-oo0COG0240J 281-0!>64-00 CAP . ,FXD,CER D1,200PF,lO\,SOOV 04222 7001-1375 281-0605-00 CAP . ,FXD,CER D1:0.00IUF,+100-0\, SOOV...
  • Page 119 Tektronix Serial/Model No. Ckt No. Par! No. Dscon! Name & Description Mfr Part Number Code CS45 281-0550-00 CAP . ,FXD.CER OI, 120PF ,10\, 50OV 04222 7001-1173 C552 283-0002-00 CAP . ,FXO,CER 0 1 , O . 01UF,+80-20\,500V 72982 811-546£103Z CAP . ,Ftc,CER O l , 0 . 0047UF,20\. SooV...
  • Page 120 Repllce.ble !leolrtc.1 Perta-7803/A Tektronix Serial/Model No. & Ckt No. Part No. Dscon1 Name Description Code Mfr Pari Number ""76 CAf . ,PXD,CER D I I O .03ur;+80-:20\,:20OV 8131N22:5651l03Z CAP. ,PXD,KICA oI130PP,1\. 100V ... 53 015lE13lPO COSO :283-0638�OO C88 ' 1500565X90358:2 :290-0415-00 CAP.,FXO,�15.6up,lO\.
  • Page 121 Tektronix Serial/Model No. & Name Description Mfr Pari Number Ckt No. Part No. Osconl Code C1255 28J-O.279-00 83.29999X CAP . ,FXD,C!R OI.O.OOIUF,.20',300OV 56289 55C153 8010100 .283-0.271-00 XB03049.2 CAP.,FXD,C!R OI.0.00lur,20',4000V 56289 llC3.2S C1.255 • CAP. ,PXD.CER Dl .27pr,./-5 .4PF, 500V 72982 301-000P2G0270M el.257...
  • Page 122 AeplllC Electrical •• P.rts-7803/R Tektronix Serial/Model No. Name & Description Code Mfr Part Number Part No. Dscont Ckt No. 07910 11'14152 CR126 152-0141-02 SEMlCOND DEVICE'SILlCON, 30V,IS0MA SEMICOND OEVICE,SILlCON.30V.150MA 07910 IN41S2 01.130 152-0141-02 au" 11' 1 4152 152-0141-02 SEMlCOND DEVlCE ;SILlCON,30V,150�...
  • Page 123 Tektronix Serial/Model No. Name & Oescription Mfr Part Number Ckl No. Part No. Oscont Code eR97) 152-0061-00 X8050000 S��ICOND OEVICE :SILlOON,175V, 100HA 80009 152-0061-00 152-0141-02 CR980 SEHICONO DEVICE ,SILlCON.30V,150HA 07910 IN4152 CR981 152-0141-02 SEHICONO OEVICE'SILlCON.30v,150MA 07910 IN4152 CR989 152-0066-00 SEHICONO OEVlCE 'SILlCON,400V,750MA...
  • Page 124 R.pl.cubl. E�trlc.1 Pant-7803/R Tektronix Serial/Model No. Ckt No. Part No. Osconl Name & Description Code Mfr Part Number CR2335 "''' ' SEHlCOND DEVICE,SILIOON,55V, 200MA 80009 152-0333-00 CR2366 152-0333-00 XB270oo0 119-0288-02 DELAY LINE,ElEe. 80009 119-0288-02 OL400 LAMP .CARTRIDGE'�, 5V ,60MA 80009...
  • Page 125 Replaceable Electrical P.rts-7603/R Teklronix Serial/Model No. Ckl No. Part Code Mfr Par! Number Dscon! Name & Description 80009 108-0422-00 8150000 COIl., RF: 80UM Ll222 108-0422-00 80009 10S-oJ31-00 108-0J31-00 COIL,RF , 0 . 75UH L228J 80009 10S-0245-00 COIL,RF , 1 . 9UH...
  • Page 126 Repleceable Eleclrlca' Partl-7603/R Tektronix Serial/Model No. Code Mfr Part Number Oscont Name & Description Ckt No. Part No. 80009 1Sl-0190-00 0 6 ' 6 IS1-0190-00 TRANSISTOR,SILICON,NPN 01295 2N3906 151-0188-00 TRANSISTOR:SILICON,PNP 06 " " " 151-0223-00 80009 151-0223-00 TRANSISTOR,SILICON,NPN "''' 151-0223-00...
  • Page 127 Tektronix Serial/Model No. Ckt No. Part No. Oscont Name & Descri p tion Code Mlr Part Number 121156 151-0223-00 B010100 B090000 TRANSISTOl'tISILICON, NPN 80009 151-0223-00 121156 151-0195-00 B10ooo0 TRANSIS'l'Ol't,SILICON, NPN 80009 151-0195-00 121201 151-0126-00 TRANSISTOR'SILIOON,NPN 15818 2N2484 121206 151-0188-00 TRANSIS'l'Ol't, SILICON, PNP...
  • Page 128 Repl.c..bl. Electrlca' Parts-7603/R Tektronix Serial/Model No. Name & Description Ckt No. Part No. Dseont Code Mfr Part Number 321-0169-00 81)0000 RES. ,FXD,FILM,562 OKM.1',O. 125W 91637 MFF1816G562ROF • • )15-0682-00 B129999 PXO.CKPSN,6.8K O H M.S' .0. 2SW 01121 C8682S BOI0I00 • •...
  • Page 129 Aep"eeabfe EIKtrical Partt - 7103/R Tektronix Serial/Model No. Ckt No. Par! No. Dscon! Name & Description Code Mfr Part Number CB1025 'l<l 315-0102-00 RES. ,FXD,CHPSN,lK OHM,5',O.2SW 01121 RES. ,FXD,CHPSN:820 QHH,5',O.25W 01121 CB821S 31S-0821-00 31S-0123-00 RES. ,FXD,CHPSN.12K OHM,S',0. 25W 01121 CBl235 RES.,FXO,CM PSN,6BO...
  • Page 130 Tektronix Serial/Model & Code Mfr Part Number Ckt No. Part No. Name Description .,05 307-0103-00 RES . ,FXD,CKPSN : 2 . 7 OfIM,5\,0. 2SW CB27GS .,07 R ES . , FXD,FILH , S l . l aL�,1\,O.12SW MFF 1 81EiGSIRlOF...
  • Page 131 Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number 317-0470-00 RES. ,FXO,CHPSN ,47 QKH , S ' , 0 . 12SW 01121 BB470S 317-0470-00 RES . , FXO,CHPSN,47 O HM , S ' , 0 . 12SW...
  • Page 132 Replaceable Electrical Pa ..-7603/R Tektronix Serial/Model No. Ckt No. Part No. Dseon! Name & Description Code Mfr Part Number 75042 CECTO-1871F RS14 323-0219-00 RE S . , FXD,FILM,I.87K OHM,I',O.SOw CECl'O-1871F RES. ,FXD,FILM:1.87K OHM, l',O. SOW 75042 RS1S 323-0219-00 91637...
  • Page 133 R..,I.c •• bl. Electrical P.rta-7803/R Teklronix SeriallModel No. Dscont Ckl No. Pari No. Name & Description Code Mfr Part Number .,,, RES. ,f'XD,FILM, 9 . 5]K OKM,1\,0.50W ]23-0287-00 .,,, CB471S RES. ,FXD,CMPSN.470 OHM,5\,0. 25W 01121 315-0471-00 8010100 B029999X .,,, 91637 MFrl816G909ROF RES.
  • Page 134 Replaceable Electrical Parts-7103JR Tektronilc Serial/Model No. & Part No. Name Description Code Mfr Part Number Ckt No. Dseont "'u RES. ,FXD,CHPSN:4.7K OHM,10',050W 01121 EIl4721 302-0412-00 XB020000 ES4721 302-0472-00 XB020000 RES. ,FXO,CMFSN:4.7K OHM,10',05OW 01121 "" "' RES. ,FXD,CMPSN:4.7K oa�,10,,050W 01121 EIl4721 302-0472-00 ""'20000 315-0102-00...
  • Page 135 Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number " " 315-0182-00 RES. ,J'Xtl,OU'SNI1.8K OHH,S',0.2SI1' 01121 01825 " " 321-1296-07 RES. ,J'XD,PILM:12K OHM , 0 . 1 \ , O , ll511' 91637 Ml"T1816C12001B "'6...
  • Page 136 Replaceable Electrical Parts-7603/R Teklronix Serial/Model No. Mfr Part Number Oscon! Name & Descri p tion Code Ckt No. Part No. RES. ,FXD,CMPSN:IK OHM,5\,O.25w 01121 CBI02S RlO19 315-0102-00 CB1S05 Rl020 315-0150-00 RE S . , FXD,CMPSN:15 OHM.S\.0. 25W 01121 01121 CB3035...
  • Page 137 Replaceable E�trtcal Parts-7603/R SerialfModet No. Tektronix Ckl No. Part No. Dscont Name & Description Code Mlr Part Number RES . ,FXD,CMPSN:I0 OHM , 5 ' , 0 . 25w 01121 315-0100-00 Rl151 01121 CB3925 RES . ,FXD,CMPSN : 3 . 9K OHH.5'.0.25w...
  • Page 138 Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number • • 01121 CB754S Rl2S7 315-0754-00 BI00000 B329999X FXD.CMPSN: 7S0K OHM.5\,0.2SW 01121 CB7S4S Rl2S7 315-0754-03 XB330000 RES . ,FXD,CHPSN:7S0K OHM,S\,0.2SW 01121 CBI03S RU,' 315-0103-00 XBI022BO 8329999X RES .
  • Page 139 Rep"c .. ble Electrical Parts-7603/R Tektronix Serial/Model No. Ckl No. Part No. Oscon! Name & Oescription Code Mfr ParI Number 112148 31S-0103-00 RES. ,FXD,CMPSN:I0x OHM,S',O.2SW 01121 cal03S R21S0 321-0403-00 RES. ,FXO,FIUl,154K OHM , a , O . 125W 91637 MFF1816G1S402F...
  • Page 140 Replaceable Electrical PalU-7603/R TektroniK Serial/Model No. Mlr Part Number Name & Description Code Ckt No. Part No. Dscont R2237 315-0203-00 RES. ,PXD,CKPSN.20K OHH,5',O.25W 01121 CB2035 R2238 315-0203-00 RES. ,FXD,CMPSN:20K OHM,S ' , O . 25W 01121 ClI2035 l"2F1816C2430lP R2241 321-0326-00 RES .
  • Page 141 Aeplaceable Electric.1 P.rta-7to3lA Tektronix Serial/Model No. Ckt No. Part No. Dscon! Name & Description Code Mlr Part Number T122!i 120-0709-00 BOI0I00 B029999 XFMR,PWR, STPDN,HV POWER 80009 120-0709-00 POWER T122S 120-0823-00 XFMR,PWR, STPDN'HV B030000 8099999 80009 120-0823-00 120-0879-00 XFMR,PWR,STPDN,HV POWeR T122S...

  • Page 142: Diagrams And Circuit Board Illustrations

    7603JR7603 SECTION 8 DIAG R A M S A N D C I RC U I T BOARD I LLUST R ATIONS Symbols and Reference Designators Electrical components shown on the diagrams are in the following units unless noted otherwise: Capacitors Values one or greater are in picofarads (pF).
  • Page 143 Ion lOll" ':. 'See P.�IS LoR for numbef" rlllllft· •• 8-2. A 1. Fig. Main Inll<face l,ead c •• cui! board.
  • Page 144 � .. !;!! � � C !,! .- ,CP � � � fl- :- ..EK�ED MAIN INTERneE �; BKk of Board 6 70-1374-00: coreu.t board beLow SN 8160000. Fig.8-1B. A1. Main In I.r 3(:8 !frond R I Z...
  • Page 145 7603/R7603 Service i P66 1t ... ·2�'01 « « 67"·1"'· !."O h o :> :> Go d ci.cui! Fig. S·lA. Bl60000·up. Milin Inlerface (fronl! board. 0 AUG 1976 REV.
  • Page 147 Nice 7603/R7603 TP 96 U51 for ·See �; b 56'i al " IIr rangos. C67 Located on b ac;k of board. Fig. . lOgi� circuit board. 8·3. REV. AUG 1976...
  • Page 148 � � � <!J <> l � u H == ' :: I= � l � �...
  • Page 149 7603/R7603 Venic,,1 '0'''''''' . f 'W"< Sal".ao. Tn",' Sel 8<;10' 8·4. Fig. clreull b oard. urt boerd. A4. Venrcal Interface ci.e Fig. 8·5. RE V AUG 1976...
  • Page 150 ,,., I r- - - - R�40 5" + TO J,,'O U:;14 " FROM TRIC,GER, Nt-JEL. TRIGc>£R. SOURC. E ..!>WIT(.H ..TI'/IHI PI'?-h1,3 SoWlreH TRIClc;,ER. S I G N !>.. 3 4!. C.OMPAR.TM£Ni Sr.o IoIORI'1. ��, I (;:: /' � '�.; £V�p. s +��:...1 "...
  • Page 151 7603/R7603 Service ... tieal Amp R478 ·s P.rl. L,.t Fig. 8-6. AS..tieal Amp circuit �rd. lI&f'iill number <1"9". 1976 REV. 0 AUG...
  • Page 152 � � � O 1� +SO Y J401 11.40 1 C<\O I - :J � R452. LR«I7� I:;:-t 1. 5 5 V'O.R.T I C A L � 4'1.'1 �F +ISy <'EN"TER It.lG R;,40'! '0< I" -ISV �t� 3 � C4 1 & •...
  • Page 153 Horizontal Ampllfi,. Fig. A6. Horizonl.1 Amplifi,. ei.cuit bo..d b.low 8·78. SN B060000 . s.. Parts List for • .,i,t numlMo- .al19ft.
  • Page 154 7603/R7603 • & tCR549 C552 IranSPO$oIId ' som. i"s!rum ents. un nard SN 80600 AUG 1976 Fig,8·7A. '6 Ho · "zoot.' A mphf,e. eire OO·up.
  • Page 156 7603/R7603 Service Fig. 8·8. A 12. Sigoal OUlpul cltcuit bOlird.
  • Page 157 VIi:RTICAL S I G N A L Fj:tOM R 6 1 C R60.? T I'l I G G E R TOil; 4 . 7 P339 SELEC ' 0 0 � .001 ..1603 �--ovTJ R 645 R62.3 4.7 -1$'1 R630 SWEEP 1'1.
  • Page 158 7603/R7603 Service ." .. ,.�� . fI--- ., • Calob'llor & Mode swilches • Rl087 IOn back of boardl Fig. 8·9. A 7. Calibra10r and Mode swllches circuit board. REV B AUG 1976...
  • Page 159 C.AMERA W E R 'P O i ---q � - -, + I SV ��� � V , " T!< " M O O � � ..TO P 2 ' " '0 " " , l A L V E 'R. E i sPo�...
  • Page 160 7603/R7603 Service AUTO FOCUS GAIN R 1 1 1 5 CR 1 1 1 5 1 1 1 3 V AXIS ALIGN Fig. 8-10. AS. Z·A.is Amplifier circuil board. OSee ParIS List for serial number ranges . LOCilled on back of board: A1250 8-11A.
  • Page 161 •• High Voltage A l 250 Ion back) T122f "R 1242 SN 6010175. added to back board 8-11B. A9. Bl00ooo. Lelor mo�od to honl. • bo;o Fig. HiVh Vollil\ltl .;,n;:u,1...
  • Page 162 ::1 " ' " ld�tT-{�LIER )<� I � ;:: '. " ". "'" ,"0" � ;:� """��O'" .,,, VI09'7 R'"''' '' ' _�_ '1I;,1.�'l "'l'O � R.,1.<O,!o ." .. 0 ..' ' ' O " " , , , ��a-: GI201 CILe4...
  • Page 163 'L.I' CIt. • fIll • os.. Peru list for r.f19IS. fig_ 8-138. Recti' ..e;,cu;1 booo r d b .. ow B06155O. _ilol num� A 10. REV MAY 1974...
  • Page 164 C1 R 8 "'10 C814 e'1 R 81 • . -70 C82l C806 cell F8ll • • -s.e Pans circuil board Lift for Fig. 8-13.0.. 10. RKlili8r 80615SQ-up. JULY 1974 serial rlln9Q. oomber...
  • Page 165 § > § CR920 • " • • • ;: :r. . � � N • • • • � � . § Q :; � l : !. > � • " · • � �. I!! . :0 •...
  • Page 167 7603/R7603 Service Readout t RemPv«I SN B25OOO O- U P os.. P.rts List N,i.1 number r.nll". Fit. 8·14. All. RNdoul circuit board. REV. E AUG 1976...
  • Page 168 • • • • • �: • • � '"...
  • Page 169 , , ! nH� � ' ••...
  • Page 170 a.cUOn t-7803/A RE PLACEABLE MECHANICAL PARTS PARTS ORDERING INFORMATION INDENTATION SYSTEM Thi' mechanical parts tlst Is Indenled Indicate lIem Replacement part, are avaUabta from or Ihrough yOlJr local relationships. Following I, an e"ample of the Indentation ayslem Teklroni". Inc. Field Office Of represenlatlYe. used the description column.
  • Page 171 BOX 96 WARMINISTER, PA 18974 0 .. ' " 79807 WROUGHT WASHER MFG. 2100 S . MILWAUXEE , 53207 80009 TEKTRONIX, INC. P O BO X BEAVER'IQN, 97077 83058 CARR COMPANY, THE UNITED-CARR TRW, DIV. OF 31 AMES ST. C AMBRIDGE,...
  • Page 172 Replaceable Mechanlcel Perts-7603/R Fig. & Index Tektronix Serial/Model No. Part No. Oscont Name & Description Qty 1 2 3 4 5 Code MIr Part Number 200-1209-03 BEZEL,CRT, (ATTACHING PARTS) THUMBSCReW,6-32 X 0.850 80009 Hl-0634-o0 211-0634-00 210-0894-00 WASHER,NOW.ETAL : 0 . 19 0 .
  • Page 173 Fig. & Tektronix Index Serial/Model No. Part Name & Description Code Mfr ParI Number Dscont Qty 1 2 3 4 5 131-0993-00 00779 530153-2 LINK,TERM.CONNE : 2 WIRE BLACK 260-1378-00 SWITCH,PUSH:VERT MODE 71590 2KBCI40000-608 SPACER,PUSH SW:0.13 W X 0 . 375 INCH L,PLSTC...
  • Page 174 Fig. & Index Tektronix Serial/Model No. Part No. Dscont Cty 1 2 3 4 5 Name & Description Code Mlr Part Number BUSHING,SLEEVE: 0 . 19610 X 0 . 28700 X 0 . 1 3 - L 358-0485-00 XB020000 PI10m' ANO...
  • Page 175 Fig. & Index Tektronix Serial/Model No. Part No. Oscont Qty 1 2 3 4 5 Name & Description Code Mlr Part Number CONTACT,EUC,0.64 INCH LONG 1-111 131-0787-00 (ATTACHING PARTS FOR CKT Bo) 83385 -112 211-0008-00 SCREW,HACHINE:4-40 X 0.25 INCH,PNK STL GUIoE-POST,.r.oo: : , 0 .
  • Page 177 � �...
  • Page 178 Fig. & Index Tektronix Serial/Model No. I 2 3 4 5 Part No. Dscont Name & Description Code Mfr ParI Number 331-1425-00 SHIELD, ELEC: 80009 331-1425-00 (A'l'TACiIING PARTS) ,Tt. • 83385 OBI> 211-0516-00 SCREW,HACHINE:6-32 X 0.815 INCH,PNH - - - - - - -...
  • Page 179 Fig. & Index Tektronix Serial/Model No. Dseon! ParI No. 0ly l 2 3 4 5 Name & Description Code Mfr ParI Number • 80009 348-0191-00 348-0191-00 LEG,ELEC EQUIP. :PLASTIC 2-38 • SCRDl,MACHINE:6-32 X 1.25 INCHES ,PNll STL 83385 211-0529-00 80009...
  • Page 180 Fig. & Index Tektronix Serial/Model No. Par! No. Dscon! Name & Description Code Mfr Par! Number 2-70 348-0063-00 GROHMET,PLASTIC.0.50 INCH 80009 348-0063-00 -- ----- CltT BOI.RO ASSY, Z AXIS (SEE EPL " C lA LINX,TERM.CCiNNE ,0 .086 2.375 ''''' '' L...
  • Page 181 Replaceable Mechanlc.l Parts-7603/R Fig. & Index Tektronix Serial/Model No. Pari No. Dscont Qty 1 2 3 4 5 Name & Description Code Mfr Pari Number GROKMET.PIASTIC'U-SHAPED 80009 349-0085-00 348-0085-00 8051190 8239999 GROKHET.PLASTIC:BLACX 80009 358-0166-00 358-0166-00 8240000 80009 337-1538-01 SHIELD,ELECI 337-1538-01 (ATTACHING PARTS) SCREW,MACHINE:6-32 X 0.25 INCH,Pte! STL...
  • Page 182 Replaceeble Mechanical Pam-7603/R Fig. & Index Tektronix Serial/Model No. Name & Description Code Mfr ParI Number Part No. Oscont Qly 1 2 3 4 5 80009 352-0071-00 INS,STANDOFF : 0 . 2 5 X 0.525 LONG 352-0071-00 XB290000 (A'1"l'ACHING PARTS) 83385 SCREW,HACHlNE:4-40 X 0 .
  • Page 183 1hcMmc.1 A�" PIIrtI-7t03/A Fig. & Index Tektronix Serial/Model No. Part No. Oscont I 2 3 4 5 Name & Description Code Mlr ParI Number 80009 2-161 441-1048-00 CHAS,ELEK EQPT. (ATTACHING PARTS) SCREW,MACHINE.4-40 X 0.25 INCH,PNH 833B5 211-0008-00 - - _ . _ - - GUIDE,CXT CARO.6 .
  • Page 184 Fig. & Index Tektronix Serial/Model No. Part No. Oseonl Name & Description Qty t 2 3 4 5 Code Pari Number CRT: 90009 200-1209-03 200-1209-03 BEZEL, PARTS) (A'l"l'ACHI� 211-0634-00 THUHBSCREW,6-32 0.950 L 80009 211-0634-00 210-0994-00 09422 OJU) WASHER,NONME;TAL: 0 . 1 9 0.439M OO,PLS'I'C...
  • Page 185 Replaceable MeChanical Pam-7803/R Fig. & Index Tektronix Serial/Model No. Par! No. Dscon! Qly l 2 3 4 5 Name & Description Code Mfr Part Number • 136-03S0-00 B122800 SOCKET,PLOG-IN:) PIN, PROFILE 80009 136-0350-00 260-1379-00 71S90 2KBC120000-595 SWITCH,PUSH:TRlG SOORCE (ATTACHING PARTS)
  • Page 186 Replac..ble M.ch.nlul P.rts-71031R Fig. & Index Tektronix Serial/Model No. Part No. Oscont 0ly 1 2 3 4 5 Name & Description Code Mfr Part Number GUIDE.SHAFT, 0 . 312 DIA X 0.52 INCH LONG 3-68 351-0312-00 (ATTACHING PARTS) SCR,TPG,THD FOR:6-20 X 0.250 INCH.PNH STL...
  • Page 187 F1G.3 R7603 FRONT & FRAME "- " '" &i � '" �...
  • Page 189 Fig. & Index Tektronix Serial/Model No. Oscont aty 1 2 3 4 5 Name & Description Code Mfr Part Number Part No. ASSY.VERTICAL AMPLIP"IER{SEE A5 El'L) o:T lKlARD 22526 47350 CONTACT,ELEC:0.46 INCH 131-0589-00 CONHEC'l'OR BODY , . CIC'l' CD 80009 131-1oo3�00...
  • Page 190 Rtplaceabte Mectlanleal Perts-7'D31R Fig. & Index Tektronix Serial/Model No. Part No. Dscont 1 2 3 4 5 Name & Description Mfr Part Number Code 131-10�n-oo > LEIID , EIECTRICAL.ANODE Bt1M'ON,PLUG, 131-0026-00 > • 83058 118738 > FR,FLTR ELEM,AI14.562 H X 5.625 INCH WIDE...
  • Page 191 Replaceable Mechanlcel Perta-7803/R Fig. & Index Tektronix Serial/Model No. Part No. Name & Description Mlr Pari Number Oseont 1 2 3 4 5 Code 90009 166-0292-00 SPACER,SLEEVE:PLSTC, O . 155 OIA X 0.065�L 166-0292-00 (A'J"I'ACHING PARTS) SCREW,K1ICHlNE.4-40 0. 2 5 IOCH,PNN sn.
  • Page 192 Fig. & Index Tektronix Serial/Model No. & Part No. Oseont Oty t 1 3 4 5 Name Description Code Mir Part Number 4- 98 131-0800 -00 COm'ACT ,ELEC, PLUG- I GROUND (A'M'ACHING PARTS FOR EACH) SCREW,MACHlNE,4-40 0 . 2 5 ItCH,Pm! STL...
  • Page 193 Fig. & Index Tektronix Serial/Model No. & Part No. Dscont Oly 1 2 3 4 5 Name Description Code Mlr Part Number 4 -133 214-1568-00 PIN,GOIOE: 80009 214-1568-00 (A'l"t'ACHING PARTS EACH) -134 210-0406-00 NOT,PLAIN,HEX. :4-40 X 0. lB8 INCH,BRS 73743...
  • Page 194 •• Aeplac bte Mechanical 'arb-78031R Fig. & Index Tektronix Serial/Model No. Dsconl 2 3 4 5 ParI No. Name & Description Code Mfr Part Number 386-2410-01 386-2410-01 8061273 SUBPANEt.,RSAR, (A'l"l'ACHIM> PARTS) SCREW,HACHlNE :6-32 X 0 . 2 5 II\CH,PNH 83385 211-0504-00 "...
  • Page 195 Fig. & Index Teklronix Serial/Model No. 1 2 3 4 Part No. Oscont Name & Oescription Code Mfr Part Number 352-0169-08 CONN BOOY,PL,EL:2 G'"'' 80009 352-0169-08 -201 352-0162-00 CONN SOOY,PL,£L:4 '" BLACK 80009 352-0162-00 352-0162-05 OONN BODY ,PL,£L:4 G>EEN WI'" 80009 352-0162-05 CONN...
  • Page 196 O PT I O N E lectro m a g netic I n terfe rence ( E M I ) O PT I O N W it h o u t S i g n a ls O u t r-<D _ "...
  • Page 197 7603 O PT I O N 5 & Fig. Tektronix Index Serial/Model No. & 1 2 3 4 5 ParI No. Oseon! Name Description Code Mfr ParI Numbe --- ---- FAN,TUBE AXIAL:SO-400IlZ, llSV,AC (SEE B100l EPL) (A'I"I'AOlING PARTS) 211-0530-00 SCREW ,MACHINE :6-32 X 1 . 7 5 INCH,PNH STL 8]385 <ED...
  • Page 198 R 7 6 0 3 O PT I O N 5 & ldex Tektronix Serial/Model No. & ParI No. Oseon! 1 2 3 4 5 Name Description Code Mlr Part Number - - -- - FAN,TUBE AXIAL:50-400HZ,115V,AC{SEE al001 EPLJ (A'I'TACHII«i PARTS) 211-0530-00 SCREW,MACHINE :6-)2 X 1.75 INCH,PNH STL...
  • Page 199 Part No. Eff Nome Description Code Mfr Part Number Oscont & 175-1178-00 CABLE,SP ELEC1', 80009 175-1178-00 337-1700-01 SHIEID,ELEC :BLUE 80009 337-1700-01 SHID,lHPLOSION,CLEAR 80009 337-1700-04 337-1700-04 070-1429-00 HANUAL,TECH, I NSTRUCTION 80009 070-1429-00 070-1310-00 80009 070-1l10-00 MANUAL,TECH,OP£RATORS 7603/R7603 OSCillOSCOPE ..f8EV. B JAN 1976...
  • Page 200 MOUNTING IiARDWARE 016-0131-00 HDW,XIT,ELEK EQ: RACX 80009 016-0131-00 LONG 351-0314-00 SLIDE,OWR,EXT: 19.25 INCH B0009 351-0314-00 337-1100-01 SHIELO ,ELEC:BLUE 80009 337-1700-01 337-1700-04 SHLO, IHPLOS!ON'CLEAR 80009 337-1700-04 070-1429-00 MANUAL,TECH: INSTRUCTION 80009 070-1429-00 070-1310-00 MANUAL,TECH,OPERATORS 80009 070-1310-00 7603/R7603 OSCILLOSCOPE 197 � REV. B JAN...

  • Page 201: Change Information

    MANUAL CHANGE INFORMATION At Tektronix, we continually strive to keep up with latest electronic developments by adding circuit and component Improvements to our Instruments as soon as they are developed and tasted. Sometimes, due to printing and shipping requirements, can't get these changes ImmedIately Into printed manuals.
  • Page 202 This chart compares product performance that older Tektronix equipment. Only those characteristics where significant spocification difforencos occur, are listed. In some cases the new instrument may not be a lotal functional replacement, Additional support instrumentation may be needed or a change in calibration procedure may be necessary.
  • Page 203 Page 1 of 2 7603/R7603/ -950H (Option 4 ) Service 7603 or R7603 instruments purchased with OPTION 4 GENERAL: (Maximum Brightness CRT) contain the fol lowing parts and circuitry that differ from those shown for the standard 7603/R7603. For OPTION 4 instru­...
  • Page 204 Page 2 7603/R7603 Service OPTION 4 SCHEMATIC CHANGES + 1 3 0 V Z4.5 16910( C I Z 40 C R I Z . 4 C I Z 4 t +50V .51\ I\IZ44 �IZ45A R.,1Z. C 1 24-7 . 0 0 1 �1245C.
  • Page 205 MANUAL CHAN GE INFORMATI IX ® M30047 CHANGE REFERENCE PRODUCT 070-1429-00 3-2-77 DATE CHANGE: DESCRIPTION EFF SN B326489 ELECTRICAL PARTS LIST SCHEMATIC CHANGES CHANGE T O : Cll24 283-0068-00 CAP . , FXD, CER DI : O . OIUF,+lOD-O% , 5 0DV e1131 283-0068-00 CAP .
  • Page 206 MANUAL CHANGE II N FO R MATION CHANGE 070-1429-00 DATE CHANGE: DESCRIPTION EFF SN B338312 ELECTRICAL PARTS LIST AND SCHEMATIC CHANGES CHANGE TO: CKT BOARD ASSY :HV 670-212 8-08 CAP . ,FXD,CER D I : O . 047UF,10%, lOQV C1215 283-0341-00 CAP .
  • Page 207 7603/R7603 5-17-77 H30310 PRODUCT CHANGE REFERENCE DATE CHANGE: DESCRIPTION ADD: 670-4856-00 CKT BOARD ASSY : FOCUS DC RESTORER 670-4856-01 CKT BOARD ASSY:Z AXIS DC RESTORER C1310 283-0402-00 CAP . ,FXD, CER DI : O . OOIUF,+80-20%, 4000V CAP . , FXD ,CER DI : O . OOIUF ,+80-20% , 4 000V...
  • Page 208 '" Fo.. o hl. T I 2..2 5· 8 > FOCUS RESTORER � I I� C'25 " D · R:2.:l!iC t- - +'3 0V 1:11<151 ' FOC.U5 �O.sM US R. 1 31 .3 C1310 I I I t5RleSB PQ£SiT T SOK 2 4 K C.RI2.5 8 101<...
  • Page 210 5-17-77 6-1-77 M30310 7603/R7603 REV. DATE CHANGE REFERENCE PRODUCT DESCRIPTION CHANGE: (670-2128-08) HIGH VOLTAGE CIRCUIT BOARD V � � - � ­ • • PAGE...
  • Page 211 76 03 /R 76 0 3 M30310 PR OD UC T CHANGE R E F E R E N C E DATE CHANGE: DESCRIPTION Focus Restorer circuit board (670-48 5 6-00) C1U10 mounted au ba£k at boord Axis Restorer circuit board (670-4856-01) PAGE...

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R7603

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