Page 1 ANUAL 623/R 623 ANUFACTURERS OF CATHODE-RAY OSCILLOSCOPES...
Page 2 Contents of this publication may not be reproduced in any form without permission of Tektronix, Inc. U.S .A . and Foreign TEKTRONIX products covered by U.S. and foreign patents and/or patents pending. TEKTRONIX is a registered trademark of Tektronix, inc.
Page 3: Table Of Contents
7623/R7623 Service SECTION 1 OPERATING INFOR ATION Page Operating Voltage Operating Temperature Plug-In Installation And Removal Operation Non-Store Operating Set-Up Information Front Panel Controls And Connectors Rear Panel Controls And Connectors Storage odes Variable Persistence Operating Set-Up Information Fast Operating Set-Up Information...
Page 4 7623/R7623 Service SECTION 3 CIRCUIT DESCRIPTION Page Block Diagram Circuit Operation Logic Fundamentals Symbols Logic Polarity Input/Output Tables Non-Digital Devices AIN INTERFACE LOGIC CIRCUIT Logic Block Diagram Z-Axis Logic Clock Generator Vertical Chopped Blanking 3-10 Chop Counter 3-11 Vertical ode Control...
Page 5 7623/R7623 Service SECTION 3 CIRCUIT DESCRIPTION (cont) Page CALIBRATOR And FRONT PANEL SWITCHING 3-22 ode Switch Logic 3-23 Calibrator 3-23 Oscillator 3-23 Output Amplifier 3-23 Output Divider 3-23 CRT CIRCUIT 3-24 Z-Axis Amplifier 3-24 Auto Focus Amplifier 3-25 High Voltage Oscillator...
Page 6 7623/R7623 Service SECTION 3 CIRCUIT DESCRIPTION (cont) Page STORAGE CIRCUITRY 3-50 Erase And Timing Circuits 3-50 Sweep Lockout Circuit 3-50 Auto Erase Circuit 3-50 Readout Shut Down Circuit 3-54 Persistence Pulse And Pump Pulse Generator Circuits 3-54 Flood Gun Anode And CE2 Circuits...
Page 7 7623/R7623 Service SECTION 4 AINTENANCE (cont) Page CORRECTIVE AINTENANCE 4-10 Obtaining Replacement Parts 4-10 Special Parts 4-10 Ordering Parts 4-11 Soldering Techniques 4-11 Component Replacement 4-11 General 4-11 Circuit Board Replacement 4-11 Access To The Fan otor 4-13 Access To The Fan...
Page 9 Spare jumper Fig. 1-1. Location of Voltage-selector jumper, spare jumper, and 230 V fuse in power-unit (shown removed).
Page 10: Front Panel Controls And Connectors
Operating Information — 7623/R7623 Service 1. INTENSITY — Controls the brightness of the display. 2. READOUT — Turns on the Readout dis play, and controls the brightness of the Readout display. 3. FOCUS — Screwdriver adjustment provides adjustment for optimum display definition.
Page 11: Rear Panel Controls And Connectors
Operating Information — 7623/R7623 Service 1. FUSE — Line voltage fuse. 2. RE OTE ERASE IN — Provides external connection for remote erase. 3. EXT S S RESET IN — Remote single sweep reset. 4. EXT Z AXIS IN — Input for intensity modulation of the CRT display.
Page 12: Variable Persistence Operating Set-Up Information
Operating Information — 7623/R7623 Service Variable Persistence Operating Set-Up Information Bi-Stable Operating Set-Up Information SAVE ode Operation Set-Up Information FAST Operating Set-Up Information ULTI TRACE FAST Operating Set-Up Information...
Page 13: General
Section 2 — 7623/R7623 Service General. Index. Performance Check. Partial Procedure. Complete Calibration Procedure.
Page 14: Test Equip Ent Required
Calibration — 7623/R7623 Service TEST EQUIP ENT Examples of Applicable Description inimum Specifications Usage Test Equipment...
Page 15 Calibration — 7623/R7623 Service TEST EQUIP ENT (cont) Examples of Applicable Test Equipment inimum Specifications Usage Description...
Page 16: Test Equipment
Calibration — 7623/R7623 Service TEST EQUIP ENT (cont) Examples of Applicable Test Equipment inimum Specifications Usage Description This instrument should be adjusted at an ambient temperature of +25° C ±5°C for best overall accuracy. If correct line voltage is not available, use a variable autotransformer to provide the correct input voltage.
Page 18: Readout Operation
Calibration — 7623/R7623 Service Readout Operation Storage Operation...
Page 19 Ripple and regulation of the individual power supplies can be checked using the procedure given under Troubleshooting Techniques in Section 4. Fig. 2-1. (A) Location of low-voltage and high-voltage test points (right side of instrument) (B) Location of — 50 V adjustment (Low Voltage Regulator board).
Page 20 Calibration — 7623/R7623 Service c. Pull out the power switch (turn on the instrument). Check meter reading; — 1475 volts ±45 volts. a. Push in the power switch (turn off the instrument). d. Push in the power switch (turn off the instrument).
Page 21 R1184 ------- G (Geometry) Adjustment R1190 R1193 Y (Y-Axis) A (Astigmatism) Adjustment Readout Board Remove Fig. 2-2. Location of Display and Z Axis adjustments and test points.
Page 22 Calibration — 7623/R7623 Service...
Page 23 Calibration — 7623/R7623 Service...
Page 24 Calibration — 7623/R7623 Service Fig. 2-3. Location of Vertical System adjustments (Vertical Output board).
Page 25 Calibration — 7623/R7623 Service TABLE 2-2 High-Frequency Compensation Primary Area Adjustment Of Pulse Affected Best Sweep Rate...
Page 26 Calibration — 7623/R7623 Service...
Page 27 Fig. 2-4. Location of TP67 on Logic board (shown with power unit removed).
Page 28 Calibration — 7623/R7623 Service...
Page 29 Calibration — 7623/R7623 Service...
Page 30 Calibration — 7623/R7623 Service Fig. 2-6. Location of Horizontal System adjustments (Horizontal Amplifier board).
Page 31 Calibration — 7623/R7623 Service Fig. 2-7. Typical CRT display when checking X-Y phase shift. / 27.
Page 32 Calibration — 7623/R7623 Service...
Page 33 Place jumper Place jumper Calibrator here for one here for DC output Amp. Adjustment kilohertz output FRONT OF INSTRU ENT Fig. 2-8. Location of Calibrator adjustments (Cal-Storage board).
Page 34 Calibration — 7623/R7623 Service...
Page 35 o output will be present with the 7B53A horizontal time base plug-in. A delay gate signal is present with only a 7B71 or a 7B51 horizontal time-base plug-in unit.
Page 36 Calibration — 7623/R7623 Service Fig. 2-9. Location of Readout adjustments and switch S2110 (Readout board).
Page 37 Calibration — 7623/R7623 Service...
Page 38 Calibration- 7623/R7623 Service...
Page 39 Fig. 2-10. Storage adjustments and storage test points (Cal-Storage board).
Page 40 Calibration — 7623/R7623 Service TABLE 2-5 Test Point Tolerance Fig. 2-1 1(A). Erase waveform (Bi-stable Test Point), (B). Transfer waveform (High speed test point).
Page 41 Calibration — 7623/R7623 Service TABLE 2-6 TABLE 2-7...
Page 42 Calibration — 7623/R7623 Service TABLE 2-8 Test Points Tolerance...
Page 43 Calibration — 7623/R7623 Service...
Page 44 Calibration — 7623/R7623 Service...
Page 45 Section 3 — 7623/R7623 Service...
Page 46 Circuit Description — 7623/R7623 Service Fig. 3-1. Basic block diagram of 7623 Oscilloscope.
Page 47 Circuit Description — 7623/R7623 Service TABLE 3-1 Basic Logic Reference Device Symbol Description Input/Output Table Input Hl.„ Input /Output...
Page 48 Input / Output Condition Condition after trigger pulse pulse...
Page 49 TABLE 3-1 (cont) Basic Logic Reference Input/Output Table Description Symbol Device Input / Output Input Output Output conditions shown after trigger pulse Input / Output Output conditions shown after trigger pulse Input / Output <t> ■ Has no effect in this case ' Output state determined by conditions at triggered...
Page 50 Circuit Description — 7623/R7623 Service Logic symbols used on the diagrams depict the logic function and may differ from the manufacturer's data. The HI-LO logic notation can be conveniently con verted to 1-0 notation by disregarding the first letter of each step.
Page 52 Circuit Description — 7623/R7623 Service Fig. 3-3. Simplified schematic of Z-Axis Logic stage.
Page 53 Circuit Description — 7623/R7623 Service...
Page 54 Circuit Description — 7623/R7623 Service Fig. 3-5. (A) Input and output pins for Vertical Chopped Blanking stage, (B) Idealized waveforms for Vertical Chopped Blanking stage.
Page 55 Circuit Description-7623/R7623 Service...
Page 56 Circuit Description — 7623/R7623 Service Fig. 3-6. (A) Logic diagram for Vertical Chopped Blanking stage, (B) Table of input/output combinations for Vertical Chopped Blanking stage. "1"...
Page 57 Circuit Description — 7623/R7623 Service Clock pulses from Clock Generator stage ainframe Pm 9 U123B Chop Signal To Vertical Control stage Vertical Plug in Pin 5 U123A Chop Signal (500 kHz) To Plug-In Chop Buffer stage Fig. 3-8. Idealized input and output waveforms for Chop Counter stage.
Page 58 Circuit Description-7623/R7623 Service From VERT switch ainframe Vertical Command Fifl. 3-9. Logic diagram of Vertical ode Control and Vertical ode Buffer Amplifier stages.
Page 59 Circuit Description — 7623/R 7623 Service Display Right Command Fig. 3-10. Logic diagram of Vertical Binary stage. Fig. 3-11. Idealized waveforms showing relationship between input and output waveforms for Vertical Binary and Plug-In Binary stages when operating in ALT mode.
Page 60 Circuit Description — 7623/R7623 Service Plug-In Alternate Command Display Right Command Fig. 3-12. Logic diagram of Plug-In Binary and Plug-In Alternate Buffer stages. General. to the base S1011 to Vert ode. Left.
Page 61 Circuit Description-7623/R7623 Service Fig. 3-13. Detailed block diagram of Trigger Selector circuit along with simplified diagram of trigger source selection circuitry.
Page 62 Circuit Description — 7623/R7623 Service ' Pin 14 LO for all other conditions. Fig. 3-14. Input levels at pin 4 of U324 (source of triggering is shown in parenthesis).
Page 63 Circuit Description — 7623/R7623 Service Fig. 3-15. Input/output table for T rigger Channel Switch stage.
Page 64 Circuit Description — 7623/R7623 Service Fig. 3-17. Input/output table for Vertical Channel Switch.
Page 65 Circuit Description — 7623/R7623 Service Fig. 3-18. Vertical Amplifier detailed block diagram.
Page 66 Circuit Description — 7623/R7623 Service Horizontal deflection signal to right deflection plate of CRT Horizontal deflection signal to left deflection plate of CRT Fig. 3 19. Horizontal Amplifier detailed block diagram.
Page 67 Circuit Description-7623/R7623 Service...
Page 68 Circuit Description — 7623/R7623 Service Fig. 3-21. CRT Circuit detailed block diagram.
Page 69 Circuit Description — 7623/R7623 Service...
Page 70 Circuit Description — 7623/R7623 Service...
Page 71 Circuit Description — 7623/R 7623 Service...
Page 76 Circuit Description — 7623/R7623 Service Fig. 3-23. Schematic illustrating voltage drop between power supply output and load due to resistance of interconnecting wire.
Page 77 Circuit Description — 7623/R7623 Service...
Page 78 Circuit Description — 7623/R7623 Service Left Vert Right Vert Horizontal Fig. 3-24. Location of readout words on the CRT identifying the originating plug-in unit and channel (one complete frame shown, simulated readout).
Page 79 Unused locations. Available for future expansion of Readout System Operational address.
Page 80 Circuit Description-7623/R7623 Service Fig. 3-26. Typical readout display where only channel 1 of the Right Vertical and Horizontal unit is displayed. TABLE 3-2 Standard Readout Format Time-Slot Number Description...
Page 81 Circuit Description-7623/R7623 Service...
Page 82 > G>...
Page 83 Circuit Description — 7623/R7623 Service Fig. 3-29. Detail of outputs at pins 12, 13, 14, and 16 of U2126. Fig. 3-28. Output waveforms of Timing stage.
Page 84 Circuit Description — 7623/R7623 Service Fig. 3-30. Timer stage operation when Display-Skip condition occurs.
Page 85 Circuit Description — 7623/R 7623 Service |«-lc lrçl5flu>|<çlr*lcpl oil f I I J2| J2| S2| J2| J2| £| |2| {2 I J2 | Timo-slot pulse 1 Pin 3 Time slot pulse 2 Pin 13 Time-slot pulse 3 Pin 12 Time-slot...
Page 86 Circuit Description — 7623/R7623 Service...
Page 87 Circuit Description — 7623/R7623 Service Fig. 3-32. Typical encoding scheme for voltage-sensing amplifier plug-in unit. Coding shown for deflection factor of 100 microvolts. µ...
Page 88 Circuit Description — 7623/R7623 Service TABLE 3-3 Channel Address...
Page 89 Circuit Description — 7623/R7623 Service...
Page 90 Circuit Description — 7623/R7623 Service Fig. 3-34. Block representation of memory sequence in U2232.
Page 91 Circuit Description — 7623/R7623 Service Fig. 3-35. Typical output waveforms for Zeros Logic and emory stage operation (at pin 7 of U2232I.
Page 92 Circuit Description — 7623/R7623 Service µ...
Page 93 Fig. 3 -36. Readout word relating 10 possible character locations to the decimal-point instructions that can be encoded and the resulting display.
Page 94 Circuit Description — 7623/R7623 Service Fig. 3-37. Flow chart of character generation sequence by the Readout System.
Page 95 Circuit Description-7623/R7623 Service...
Page 96 TABLE 3-5 Input Output Table For The Switch And Diode atrix bistable...
Page 97 Circuit Description-7623/R7623 Service...
Page 98 Circuit Description — 7623/R7623 Service Fig. 3-39. Output Pulses for the Storage Circuits.
Page 99 Circuit Description — 7623/R7623 Service Fig. 3-40. Basic Block Diagram of the Storage Timing.
Page 100 Fig. 3-41. Basic Block Diagram of the Readout Shut Down Circuit.
Page 101 Fig. 3-42. Basic Block Diagram of the FGA and CE Circuits.
Page 102 Circuit Description — 7623/R7623 Service Fig. 3 43. Basic Collector Circuit.
Page 103 Circuit Description — 7623/R7623 Service...
Page 104 Circuit Description — 7623/R7623 Service...
Page 105 Section 4 — 7623/R7623 Service [ WARNING Dangerous potentials exist at several points through out this instrument. When the instrument is operated with the covers removed, do not touch exposed connections or components. Some transistors have voltages present on their cases. Disconnect power before cleaning the instrument or replacing parts.
Page 106 — 7623/R 7623 Service Interior. Air Filter (For Rackmount Versions only). The...
Page 107 Color code of the AC power cord is as follows (in accordance with ational Electrical Code): Black Line White eutral Green with yellow stripe Safety earth (ground) TABLE 4-1...
Page 108 ■Ç» À...
Page 110 — 7623/R7623 Service Fig. 4-4. Color code for resistors and ceramic capacitors. A 20,000 ohms/volt VOM can be used to check the 1. Check Control Settings. voltages in this instrument if allowances are made for the circuit loading of the VOM at high-impedance...
Page 111 — 7623/R7623 Service Fig. 4-5. Electrode configuration for semiconductors used in this instrument.
Page 112 — 7623/R7623 Service TABLE 4-2 Power Supply Tolerance and Ripple 3. Visual Check. 4. Check Instrument Calibration. Voltages and waveforms given on the diagrams are not absolute and may vary slightly between instru ments. To obtain operating conditions similar to those used to take these readings, see the first diagram page.
Page 113 — 7623/R7623 Service Fig. 4-6. Circuit Isolation Troubleshooting Chart.
Page 114 CAUTION Do not use an ohmmeter scale that has a high internal current. High currents may damage the diodes under test. When selecting replacement parts, it is important to remember that the physical size and shape of a component may affect its performance in the instru ment, particularly at high frequencies.
Page 115 — 7623/R 7623 Service Disconnect the instrument from the power source before replacing components. Circuit Board Replacement. Disconnect the instrument from the power source before soldering. Even though unwired boards are available without components, use of the completely wired replace ...
Page 116 — 7623/R7623 Service After replacing the power transistors, check that the transistor cases are not shorted to the heat radiator before applying power.
Page 117 Service Access To The Fan otor Access To The Fan otor For The R7623 Fig. 4-7. Location of screws holding Low Voltage sub chassis.
Page 118 Tektronix, Inc. Order TEKTRO IX Part o. 040-0542-00. Handle silicone grease with care. Avoid getting silicone grease in the eyes. Wash hands thoroughly after use.
Page 119 Service The spring tension of the pin sockets ensures a good connection between the circuit board and the pin. This spring tension can be destroyed by using the pin sockets as a connecting point for spring-loaded probe tips, alligator dips, etc.
Page 120 — 7623/R7623 Service Switch Replacement. TABLE 4-3 Fuse Rating Circuit AU solder joints in the high-voltage compartment Function Rating Location Number should have smooth surfaces. Any protrusions may cause high-voltage arcing at high altitudes.
Page 121 — 7623/R7623 Service The packaging material is not designed to protect the plug ins if shipped installed in the plug-in compart ments. The plug-ins should be shipped in their own shipping cartons.
Page 122 Section 5 — 7623/R7623 Service ELECTRICAL PARTS LIST Replacement parts should be ordered from the Tektronix Field Office or Representative in your area. Changes to Tektronix products give you the benefit of improved circuits and components. Please include the instrument type number and serial number with each order for parts or service.
Page 123 Electrical Parts List — 7623/R7623 Service APA ITORS...
Page 124 Electrical Parts List — 7623/R7623 Service...
Page 125 Electrical Parts List-7623/R 7623 Service...
Page 126 Electrical Parts List-7623/R7623 Service...
Page 127 Electrical Parts List-7623/R7623 Service APA ITORS (cont)
Page 128 Electrical Parts List-7623/R7623 Service Ckt. N o. _________ Par t No. Eff _________ Disc APA ITORS (cont) DIODES...
Page 129 Electrical Parts List — 7623/R7623 Service DIODES (cont)
Page 130 Electrical Parts List-7623/R7623 Service DIODES (cont)
Page 131 Electrical Parts List-7623/R 7623 Service DIODES (cont) 5-10...
Page 132 Electrical Parts List-7623/R7623 Service DIODES (cont) 5-11...
Page 133 Electrical Parts List — 7623/R7623 Service DIODES (cont) DELAY LINE BULBS FUSES ONNE TORS 5-12...
Page 134 Electrical Parts List — 7623/R7623 Service ONNE TORS (cont) INDU TORS TRANSISTORS 5-13...
Page 135 Electrical Parts List - 7623/R7623 Service TRANSISTORS (cont) Q334 5-14...
Page 136 Electrical Parts List — 7623/R7623 Service 5-15...
Page 137 Electrical Parts List — 7623/R7623 Service TRANSISTORS (cont) 5-16...
Page 138 Electrical Parts List — 7623/R7623 Service TRANSISTORS (cont) 5-17...
Page 139 Electrical Parts List — 7623/R7623 Service RESISTORS 5-18...
Page 140 Electrical Parts Li$t-7623/R7623 Service Eff ________ Disc _____________________ De scription Ckt. No. _________ Part No. RESISTORS (cont) 5-19...
Page 141 Electrical Parts List-7623/R7623 Service RESISTORS (cont) 51 Ω, 680 Ω, 50.5 5-20...
Page 142 Electrical Parts List — 7623/R7623 Service RESISTORS (cont) 5-21...
Page 143 Electrical Patts List -7623/R7623 Service RESISTORS (cont) 5-22...
Page 144 Electrical Parts List -7623/R7623 Service RESISTORS (cont) 5-23...
Page 145 Electrical Parts List-7623/R7623 Service RESISTORS (cont) 5-24...
Page 146 Electrical Parts List — 7623/R7623 Service RESISTORS (cont)
Page 147 Electrical Parts List-7623/R7623 Service RESISTORS (cont) 5-26...
Page 148 Electrical Parts List-7623/R7623 Service RESISTORS (cont) 120 kΩ, 6.65 5-27...
Page 149 Electrical Parts List -7623/R 7623 Service RESISTORS (cont) 5-28...
Page 150 Electrical Parts List — 7623/R7623 Service 5-29...
Page 151 Electrical Parts List — 7623/R7623 Service 5-30...
Page 152 Electrical Part» L«t-7623/R7623 Swvka RESISTORS (cont) 5-31...
Page 153 Electrical Parts List- 7623/R7623 Service RESISTORS (cont) 5-32...
Page 154 Electrical Parts List — 7623/R7623 Service RESISTORS (cont) ’ 5-33...
Page 155 Electrical Parts List~7623/R7623 Service RESISTORS (cont) 5-34...
Page 156 Electrical Parti List-7623/R7623 Service RESISTORS (cont) 5-36...
Page 157 Electrical Parts List — 7623/R7623 Service RESISTORS (cont) 5-36...
Page 158 Electrical Parts List-7623/R 7623 Service RESISTORS (cont) 1 kΩ, X/li 560 Ω, 18 kΩ, 5-37...
Page 159 Electrical Parts List-7623/R7623 Service RESISTORS (cont) 2. it 750 Ω, 750 Ω, 750 Ω, 750 Ω, 750 Ω, 13 kΩ,...
Page 160 Electrical Parts List — 7623/R 7623 Service RESISTORS (cont) 5-39...
Page 161 Electrical Parts List — 7623/R7623 Service RESISTORS (cont) SWIT HES TRANSFORMERS...
Page 162 Electrical Parts List-7623/R7623 Service INTEGRATED IR UITS 5-41...
Page 163 Electrical Parts List-7623/R7623 Service ELE TRON TUBE DIODES, ZENER...
Page 164 Section 6 — 7623/R7623 Service ’...
Page 166 7623/R7623 Service Front of Board...
Page 170 Fig. 6-2. A2 Logic circuit board. GRID GRID GRID GRID GRID GRID C195 L198 R110 C196 R112 C198 R123 Q108 R124 Q132 CR84 R125 Q137 CR85 R126 Q142 CR93 C136 R130 Q147 CR 124 Cl 37 R132 Q150 CR 125 C138 R133 Q162...
Page 171 7623/R7623 Service Logic GRID GRID R162 R142 R163 R143 R164 R144 R145 R165 R166 R146 R168 R147 R148 TP67 R149 TP96 R150 R152 TP 162 R154 R155 R157 R159 U123 R160 U156 R161...
Page 172 RECO ENDED TEST EQUIP ENT SPECIFICATIONS RECO ENDED TYPE...
Page 173 7623...
Page 174 7623/R7623 Service GRID GRID GRID GRID GRID C301 R333 R320 Q346 R 345 C305 R334 R322 R 346 C329 R335 R324 R303 R348 R336 C332 R326 R349 R305 R337 C342 R327 R307 R350 R 338 C348 R328 R308 R352 R 339...
Page 175 Vertical Interface...
Page 176 Fig. 6-4. A4 Vertical Interface circuit board. GRID GRID GRID GRID R 236 C207 Q242 R215 R 238 C208 Q252 R216 R 240 C215 R218 R241 C217 R 200 R219 R 246 C220 R202 R222 R250 C227 R204 R224 R 251 C260 R206 R 225...
Page 177 RECO ENDED TEST EQUIP ENT SPECIFICATIONS RECO ENDED TYPE...
Page 178 <§> ertical nterface...
Page 179 7623/R7623 Service GRID GRID GRID GRID GRID CR 460 R 403 R 425 R461 C401 R 404 R 427 CR461 R462 C418 R 405 R429 C420 R 463 R 407 C421 J401 R 433 R 466 R 408 R 468...
Page 180 Vertical Amp...
Page 181 RECO ENDED TEST EQUIP ENT SPECIFICATIONS RECO ENDED TYPE...
Page 182 0.6-I R474 K4Ô! a.405 24-07 -7.9 R.423 R40Ä 2.4$* 2405 2.87K -50 V R * 17 R4ZO VERTICAL ¾lOtNAk L.4» DE.LAV LO*/E-R DL 400 R.4I6 R416 T4I7 R477 ■. 0.6-luH 50 mV 8.1K -IT.Ö -14.6 LR4B2 .7¾ P45O (pi¾PLAY) DISPLAY ITED note CURRENT...
Page 183 7623/R7623 Service GRID GRID GRID GRID GRID GRID CR531 C545 R 525 R579 R501 R556 CR532 C552 R581 R 502 R526 R558 CR533 C555 R559 R582 R503 R529 C566 CR543 R 505 R561 R583 R531 C568 CR544 R506 R562 R585...
Page 184 Horizontal Amp...
Page 185 RECO ENDED TEST EQUIP ENT SPECIFICATIONS RECO ENDED TYPE...
Page 187 GRID GRID GRID Q606 R636 C605 Q618 R637 C610 Q620 R 639 C615 R641 Q631 C619 R 643 Q634 C622 R645 C637 Q640 R 647 C639 Q662 R 651 C643 Q666 R 652 C667 Q672 R 654 C669 C679 R 655 R 602 C682 R 657...
Page 188 Output Signals...
Page 189 RECO ENDED TEST EQUIP ENT SPECIFICATIONS RECO ENDED TYPE...
Page 190 utput ignals...
Page 191 7623/R7623 Service GRID GRIO GRID GRID Q1107 C1124 R1111 R 1135 C1126 Q1110 R1113 R1137 C1128 R1114 Q1128 R1139 C1131 Q1132 R1115 R1141 C1138 Q1134 R1116 R 1144 C1141 R1119 Q1136 R 1146 C1144 Q1148 R1120 R 1148 R1121 C1146...
Page 192 Fig. 6-9. A9 High Voltage No. 1 circuit board. GRID C1226 C1228 CR1226 CR1228 R1227 R1228 R1229 R1230 R1231...
Page 193 GRID GRID GRID GRID GRID Cl 258 C1215 CR 1255 R 1207 R 1257 Cl 264 Cl 222 CR1258 R1208 R 1259 Cl 266 CR1268 Cl 232 R1210 R 1261 R1211 Cl 234 C1268 CR1269 R 1263 Cl 269 CR 1270 R1214 C1236 R 1264...
Page 194 RECO ENDED TEST EQUIP ENT SPECIFICATIONS RECO ENDED TYPE...
Page 195 LV POWER SUPPLY <§> 7623...
Page 196 7623/R7623 Service Fig. 6-11. AI 2 Rectifier circuit board. GRID GRID CR821 C806 R826 C808 R827 F814 C810 R830 C811 R831 R805 C813 R833 R806 C814 R837 R811 C820 R838 R814 C821 R821 Q827 R822 CR808 Q829 R823 CR811 Q835...
Page 198 GRID GRID GRID GRID GRID GRID GRID C866 CR941 Q908 R864 R898 R938 R980 C880 CR950 Q909 R939 R866 R901 R979 C889 CR951 Q910 R867 R940 R903 R983 C923 CR958 Q919 R942 R870 R904 R984 C950 CR961 Q931 R872 R945 R906 R985 C979...
Page 199 RECO ENDED TEST EQUIP ENT SPECIFICATIONS RECO ENDED TYPE...
Page 201 7623/R7623 Service GRID GRID GRID GRID GRID GRID GRID R 1605 Q1424 Q1606 R 1421 R 1507 CR1475 C1362 R1610 Q1426 Q1612 R 1423 R 1508 CR 1484 Cl 375 R1611 Q1428 Q1615 R 1425 R1513 CR1489 C1381 R1429 R1614...
Page 202 Storage Output...
Page 203 RECO ENDED TEST EQUIP ENT SPECIFICATIONS RECO ENDED TYPE...
Page 205 7623/R7623 Service Fig. 6-14. A15 Cal & Storage circuit board.
Page 206 GRID GRID GRID GRID GRID GRID GRID CR1409 7D Cl 306 QI 769 R1411 R1567 R1780 CR1441 C1313 Q1774 R1413 R1568 R1783 CR1448 J100 C1551 Q1777 R1415 R1570 R1785 CR1483 4D C1560 Q1784 JI 20 R1572 R1435 R1787 CR1488 5D C1631 Q1788 R1573...
Page 207 RECO ENDED TEST EQUIP ENT SPECIFICATIONS RECO ENDED TYPE...
Page 209 7623/R7623 Service Fig. 6-15. A16 Readout System circuit board.
Page 210 GRID GRID GRID GRID GRID GRID CR2175 R2104 R2174 R2231 R2297 C2101 CR2192 R2235 R2105 R2298 R217S C2109 CR2193 R2236 R2107 R2299 R2177 C2112 CR2196 5E R2237 R2108 R2179 C2115 CR2198 5E R2238 R2109 S2110 R2178 C2117 CR2214 R2112 R2241 R2182 C2119 CR2226...
Page 211 Fig, 6-16. A18 ode Switch circuit board. GRID GRID R1018 CR 1021 R1019 CR 1023 3C R 1022 CR1024 R 1720 CR1026 R1721 CR 1028 R 1723 Q1722 S1011 Q1724 S1718...
Page 212 RECO ENDED TEST EQUIP ENT SPECIFICATIONS RECO ENDED TYPE...
Page 214 Section 7 — 7623/R7623 Service MECHANICAL PARTS LIST Replacement parts should be ordered from the Tektronix Field Office or Representative in your area. Changes to Tektronix products give you the benefit of improved circuits and components. Please include the instrument type number and serial number with each order for parts or service.
Page 215 Parts List-7623/R7623 Service Disc 2 3 4 5...
Page 216 Parts Lirt-7623/R7623 Service...
Page 217 Parts List — 7623/R7623 Service 2 3 4 £...
Page 218 Parts Li$t-7623/R7623 Service 2 3 4 5...
Page 219 Parts Li$t-7623/R7623 Service 2 3 4 5...
Page 220 Parts List-7623/R7623 Service Part No. 2 3 4 5...
Page 221 Parts List -7623/R7623 Service 2 3 4 5...
Page 222 Parts List — 7623/R7623 Service Part No.
Page 223 Part» List-7623/R7623 Service 7-10...
Page 224 Parts List — 7623/R7623 Service 12 3 4...
Page 225 Parts List — 7623/R7623 Service Disc 2 3 4 5 7-12...
Page 226 Pads List — 7623/R7623 Service 12 3 4 5...
Page 227 Parts List-7623/R7623 Service 2 3 4 5...
Page 228 Parts List — 7623/R7623 Service 2 3 4 5 7-15...
Page 229 Parts List -7623/R7623 Service Disc 2 3 4 5 7-16...
Page 230 Parts List -7623/R7623 Service 2 3 4 5 7-17...
Page 231 Parts Li»t-7623/R7623 Service 2 3 4 5 7-18...
Page 232 Parts List-7623/R7623 Service 2 3 4 s 7-19...
Page 233 Parts List-7623/R7623 Service 2 3 4 5 7-20...
Page 234 Parts List-7623/R7623 Service 2 3 4 s 7-21...
Page 235 Parts List- 7623/R7623 Service Disc 2 3 4 5 7-22...
Page 236 Parts List-7623/R7623 Service 2 3 4 S 7-23...
Page 237 Paris List-7623/R7623 Service 2 3 4 5 7-24...
Page 238 Parts List — 7623/R7623 Service 2 3 4 5 7-25...
Page 239 Parts Li$t-7623/R7623 Service 2 3 4 5 7-26...
Page 240 Parts List -7623/R7623 Service 2 3 4 5 7-27...
Page 241 Parts List — 7623/R7623 Service 2 3 4 5 7-28...
Page 244 7623 REPACKAGING Fig. & Index Serial/ odel No. Tektronix 2 3 4 5 Description Part No. Disc...
Page 245 R7623 REPACKAGING Fig. & Index Tektronix Serial/ odel No. 2 3 4 5 Description Part No. Disc...
Page 248 Fig. & Serial/ odel No. Index Tektronix 2 3 4 5 Description Disc Part No.
Page 249 REPLACEABLE PARTS FOR FACTORY INSTALLED OPTIONS OPTION 7 Without Signals Out OPTION 3 Electromagnetic Interference (E ■ •«. V» Index Tektronix Serial/ odel No. Part No. Disc 2 3 4 5 Description dixiu...
Page 250 ANUAL CHANGE INFOR ATION...
Page 251 PAGE...
Page 252 ADD TO:...
Page 259 7613 and 7623 OPTION 5 Instruments containing OPTION 5 are designed to operate on any power Line Frequency from 50 Hz to 400 Hz. If your instrument was ordered with OPTION 5 it will differ from the basic instrument to the extent described in this option supplement.

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Tektronix 7623 Instruction Manual

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