Page 1 Thank you very much for your shopping on us, if you need any other manual, email me at jasonsyj@hotmail.com will do my best to help you. If you find any others selling the manual made by me, please email me also. Thanks and enjoy reading.
Page 2 ARMY TM 11-6625-2925-24 AIR FORCE TO 33A1-10-242-2 ORGANIZATIONAL, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL DUAL TIME BASE, TEKTRONIX MODEL 7B92A (NSN 6625-01-027-0265) DEPARTMENTS OF THE ARMY AND THE AIR FORCE 21 JULY 1980...
Page 3 WARNING DANGEROUS VOLTAGES EXIST IN THIS EQUIPMENT Dangerous potentials exist at several points throughout this equipment. When the equipment 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 equipment or replacing parts. DON’T TAKE CHANCES!
Page 4 Copyright 1974 (new material 1978) by Tektronix Inc. REPRODUCED BY PERMISSION OF THE COPYRIGHT OWNER, TEKTRONIX INC. TM 11-6625-2925-24 TO 33A1-10-242-2 Technical Manual DEPARTMENTS OF THE ARMY No. 11-6625-2925-24 ) AND THE AIR FORCE TO 33A1-10-242-2 Washington, DC, 21 July 1980...
Page 5: Table Of Contents
7B92A TABLE OF CONTENTS Page LIST OF ILLUSTRATIONS......................SAFETY SUMMARY........................SECTION 1 OPERATING INSTRUCTIONS INTRODUCTION........................... INSTALLATION..........................FRONT-PANEL CONTROLS, CONNECTORS, AND INDICATORS ........... Main Triggering Controls......................Sweep Controls.......................... Delayed Triggering Controls ...................... Front-Panel Inputs........................FUNCTIONAL CHECK........................Setup Procedure ........................Sweep Functions........................
Page 6 7B92A TABLE OF CONTENTS (cont) SECTION 4 MAINTENANCE..........................Page Preventive Maintenance........................ Cleaning ........................... Visual Inspection ........................Lubrication ..........................Semiconductor Checks ......................Adjustment After Repair ......................Troubleshooting..........................Troubleshooting Aids........................ Troubleshooting Equipment ..................... Troubleshooting Techniques ....................Corrective Maintenance ........................ Obtaining Replacement Parts ....................
Page 7 Section Introduction........................Maintenance Allocation Chart for Dual Time Base, Tektronix Model 7B92A..................III. Tool and Test Equipment Requirements for Dual Time Base, Tektronix Model 7B92A................Remarks ........................... APPENDIX C REPAIR PARTS AND SPECIAL TOOLS LIST (RPSTL) (Not applicable) APPENDIX D...
Page 8 7B92A LIST OF ILLUSTRATIONS Figure No. Page Frontispiece 7B92A Dual Time Base Location of Variable and Mainframe Selector multi-pin connectors ........Location of release latch......................Front-panel controls and connectors ..................Effect of MAIN TRIGGERING LEVEL and SLOPE controls on crt display......
Page 9 LIST OF TABLES Table No. Page No. Electrical Characteristics .......................... 2-1 Environmental ............................2-4 Physical..............................2-4 7B92A Readout Character Selection......................3-8 Test Equipment............................5-2 Sweep Timing ............................5-11 Fast Timing ............................... 5-12 Fast Sweep Linearity..........................5-12 Differential Delay Time Accuracy......................5-13 Fast Differential Delay Time Accuracy......................
Page 10 7B92A SAFETY SUMMARY This manual contains safety information that the user must follow to ensure safe operation of this instrument. WARNING information is intended to protect the operator; CAUTION information is intended to protect the instrument. The following are general safety precautions that must be observed during all phases of operation and maintenance.
Page 11 7B92A REV B, JUN 1978 viii...
Page 12 Reporting Equipment Improvement Recommendations (EIR) Army. If your 7B92A needs improvement, let us know. Send us an EIR. You, the user, are the only one who can tell us what you don’t like about your equipment. Let us know why you don’t like the design. Tell us why a procedure is hard to perform.
Page 13: Operating Instructions
OPERATING INSTRUCTIONS INTRODUCTION INSTALLATION The 7B92A Dual Time Base unit provides The 7B92A is designed to operate in the normal, delayed, intensified, and alternate sweep horizontal plug-in compartment of the oscilloscope. This operation for TEKTRONIX 7000-Series Oscilloscopes. instrument can also be installed in a vertical plug-in Calibrated sweep rates from 0.2 second to 0.5...
Page 14: Front-Panel Controls, Connectors, And Indicators
MAIN TRIGGERING MODE push it in until it fits firmly into the compartment. The AUTO, NORM, or SINGLE SWEEP switches are front panel of the 7B92A should be flush with the front pressed. When the MAIN TRIGGERING MODE HF panel of the oscilloscope.
Page 15: Front-Panel Controls And Connectors
Operating Instructions-7B92A Fig. 1-3. Front-panel controls and connectors. NORM: Sweep initiated by the applied trigger signal at a JUN 1978 a trigger is received and the sweep is point selected by the LEVEL control and SLOPE control completed. The SINGLE SWEEP-RESET switch must...
Page 16: Sweep Controls
Operating Instructions-7B92A AC LF REJ: Rejects dc and attenuates signals below30 ALT Sweep: The Alternate mode is selected when the kilohertz. Accepts signals between 30 kilohertz and 500 DLY’D Time/Division switch is pulled out and rotated megahertz. clockwise and the TRACE SEP control is turned clockwise from the ALT OFF position.
Page 17: Delayed Triggering Controls
Varies the intensity of the Intensified sweep only, when vertical amplifier of the oscilloscope. operating in the Intensified or Alternate mode (must be set near clockwise end when 7B92A is operating in some EXT: The delayed trigger signal is obtained from an 7000-Series Oscilloscopes).
Page 18: Setup Procedure
If necessary, adjust the SWP CAL screwdriver adjustment for one complete cycle per Set the 7B92A controls as follows: division over the center eight graticule divisions. Be sure that the timing of the calibrator signal is accurate within MAIN TRIGGERING 0.5%.
Page 19: Triggering Functions
Operating Instructions—7B92A 10. Rotate the TRACE SEP control to vertically 18. Change the MAIN TRIGGERING SOURCE switch to EXT Þ 10. Set the oscilloscope calibratorfor position the delaying sweep trace with respect to the delayed sweep trace. With the TRACE SEP control in...
Page 20: General Operating Information
Operating Instructions-7B92A DELAY TIME MULT dial and note that the intensified can be obtained with the Delayed Triggering COUPLING sweep does not start at the completion of the delay time switch set to AC and DC. Disconnect the high-frequency but waits for the next trigger pulse.
Page 21: Main Trigger Coupling
Operating Instructions—7B92A A triggered display is obtained when the LEVEL When using the Single Sweep mode to control adjusts the frequency of the trigger generator to photograph waveforms, graticule must the frequency or sub-harmonic of the trigger signal. photographed separately in the normal manner to Stable displays may be obtained several times between prevent over-exposing the film.
Page 22: Main Trigger Source
Operating Instructions-7B92A Main Trigger Source FRONT-PANEL IN -- 1 MΩ. The 1 MΩ position is The MAIN TRIGGERING SOURCE pushbutton suitable most low- medium-frequency switches select the source of the trigger signal that is applications or when using a 10X probe.
Page 23: Effect Of Main Triggering Level And Slope Controls On Crt Display
Operating Instructions—7B92A Fig. 1-4. Effect of MAIN TRIGGERING LEVEL and SLOPE controls on crt display. REV B, JUN 1978 1-11...
Page 24: Selecting Sweep Rates
Operating Instructions-7B92A Selecting Sweep Rates The TIME/DIV OR DLY TIME switch selects calibrated sweep rates for the delaying sweep. DLY’D Time/Division switch selects calibrated sweep rates for the delayed sweep. The sweep rate for the delaying sweep is bracketed by the black lines on the clear plastic flange of the TIM E/DIV OR DLY TIME switch.
Page 25: Delay Time Multiplier
DELAY TIME MULT dial. The Delayed Triggering 7B92A INTENSITY control. LEVEL control and SLOPE, COUPLING, and SOURCE switches are inoperative. Intensified Sweep Mode.
Page 26: Specification
Section 2-7B92A SPECIFICATION This instrument will meet the electrical characteristics listed under Performance Requirement in Table 2-1, following complete calibration. The following electrical characteristics apply over an ambient temperature range of 0° C to +50° C, except as otherwise indicated. Warm-up time for given accuracy is 20 minutes.
Page 27 Specification--7B92A Table 2-1 (cont) Characteristic Performance Requirement Supplemental Information 50 Ω Input 50 Ω within 7% Resistance Reflection Coefficient (Time 0.1 p-p (using 1 GHz Re- Domain) flectometer) Trigger Jitter Internal or External 50 ps or less at 500 MHz...
Page 28 Speclfication-7B92A Table 2-1 (cont) Characteristic Performance Requirement Supplemental Information Sweep Accuracy Measured in 7900-Series Oscilloscope Over Center 8 Div +15°C to +35°C 0°C to +50°C .2 s/Div to 20 ns/Div Within 2% Within 3% 10 ns/Div to 5 ns/Div Within 3%...
Page 29: Dimensional Drawing
Specification-7B92A Table 2-1 (cont) Characteristic Performance Requirement Supplemental Information Differential Delay Time Measurement Accuracy +15°C to +35°C .2 s/Div to .1 µs/Div Both DELAY TIME MULT Within 0.75% of measurement +0.25% of full Full scale is 10 times the dial settings at 0.50 or...
Page 30 Specification—7B92A Fig. 2-1. Dimensional drawing. REV C, JUN 1978...
Page 31 WARNING THE FOLLOWING SERVICING INSTRUCTIONS ARE FOR USE BY QUALIFIED PERSONNEL ONLY. TO AVOID PERSONAL INJURY, DO NOT PERFORM ANY SERVICING OTHER THAN THAT CONTAINED IN OPERATING INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO.
Page 32: Theory Of Operation
This section of the manual contains a description of the The Output Amplifier horizontally positions the circuitry used in the 7B92A. The description begins with crt display and couples the proper sweep ramp(s) to the a discussion of the instrument using the block diagram in oscilloscope.
Page 33 Theory of Operation-7B92A External Source (SN B069999-below). The external Internal-External Amplifier B069999- trigger signal is connected to the Main Trigger Generator below). Amplifier U64 is a dual-channel, differential through the MAIN TRIG IN connector, J100. The input amplifier with a common reference voltage for both impedance at J100 can be set to either 1 megohm or 50 channels.
Page 34: Delaying Sweep Generator
Theory of Operation-7B92A and 9) drives the emitter and base of Q0112. Transistor High-Frequency Synchronization (SN B069999below). Q112 converts the push-pull output of U104 to a single- The H F sync mode increases the sensitivity of the ended output to drive tunnel diode CR114.
Page 35: Delayed Trigger Generator
Theory of operation-7B92A Delayed Trigger Generator Auxiliary Gate Generator. When the trigger When the Delayed Triggering LEVEL control is pulse cuts off Q402, the negative pulse at the base of in the RUNS AFTER DELAY TIME position, or the time...
Page 36 Amplifier B070000- time for the sweep generator to reset and stabilize before another trigger Theory of Operation-7B92A pulse starts above). Amplifier U322 selects the slope of the input the next sweep. The Trigger Disable signal is connected waveform on which triggering occurs. If pin 3 is high, the to the base of Q332.
Page 37: Delayed Sweep Generator
Baseline Stabilizer. When the Trigger Disable with another time base, a Lockout signal prevents the 7B92A from running while the other time base is being pulse resets the output of the Delayed Trigger Generator to a low level, 0502 turns on and Q504 turns off. The low displayed.
Page 38: Output Amplifier
All and Bl1. of the 7B92A CONTRAST and IN The Auxiliary Sweep Amplifier, Q456 and Q458, TENSITY controls. is a unity-gain amplifier that couples the Delaying Sweep Sweep Display.
Page 39 Theory of Operation-7B92A Table 3-1. 7B92A READOUT CHARACTER SELECTION Characters Time-Slot Description Encoded Channel Channel (Delaying Sweep) (Delayed Sweep) Decimal TS-1 Determines decimal magnitude (number R761, R762 R771, R772 of zeros displayed or prefix change R781 R791 information). Uncalibrated (>)
Page 40: Maintenance
Section 4-7B92A MAINTENANCE This section of the manual contains information for performing preventive maintenance, troubleshooting, and corrective maintenance for this instrument. PREVENTIVE MAINTENANCE Preventive maintenance consists of cleaning, visual inspection, lubrication, etc. Preventive maintenance performed on a regular basis may prevent instrument breakdown and will improve the reliability of the instrument. The severity of the environment to which this instrument is subjected determines the frequency of maintenance.
Page 41: Semiconductor Checks
Tektronix Field Office. Order Tektronix Part 003-0342- 01. General Electric Versilubee silicone grease should be applied sparingly so that the lubricant does not get on the contacts.
Page 42: Troubleshooting
Maintenance-7B92A TROUBLESHOOTING The following information is provided to help troubleshoot this instrument. Information contained in other sections of this manual should be used along with the following information to aid in locating the defective component. An understanding of the circuit operation is very helpful in locating troubles, particularly where integrated circuits are used.
Page 43: Semiconductor Lead Configurations
Maintenance-7B92A Fig. 4-2. Semiconductor lead configurations. REV C, JUN1978...
Page 44: Inter-Board Multi-Pin Connector Assembly
Maintenance-7B92A Fig. 4-4. End-lead multi-pin connector assembly Fig. 4-3. Inter-board multi-pin connector assembly. Multi-Pin Connector Identification Multi-pin connectors mate with groups of pins soldered to circuit boards. Pin number 1 is indexed with atriangular mark on the circuit board and molded on the holder of the multi-pin connector, as shown in Fig.
Page 45: Troubleshooting Equipment
Purpose: Test semiconductors. troubles can be located by visible indications such as unsoldered connections, broken wires, damaged circuit Recommended Tektronix types: 576 Curve Tracer, boards, damaged components, etc. 577/177 Curve Tracer system, 7CT1N Curve Tracer unit and a 7000-Series Oscilloscope system, or a 5CT1N Check Instrument Adjustment.
Page 46 Maintenance-7B92A and waveforms page adjacent to each DIODES. A diode can be checked for an open schematic diagram. Note or shorted condition by measuring the resistance recommended test equipment, front- between terminals with an ohmmeter scale having a low panel control settings, voltage and internal source current, such as the R X 1K scale.
Page 47: Corrective Maintenance
Use only 60/40 rosin-core, electronic grade solder. The choice of soldering iron is time than is required to order them from Tektronix, Inc. determined by the repair to be made. When soldering on Before purchasing or ordering replacement parts, check the parts list for value, tolerance, rating, and description.
Page 48: Component Removal And Replacement
(if not clipped in step 3). Parts list. An alternate solution is to refer the replacement of the defective connector to your Tektronix 6. Clean the area around the solder connection Field Office or representative. with a flux-removing solvent. Be careful not to remove information printed on the board.
Page 49 DELAY TIME MULT dial. Switches. Pushbutton and cam-type switches are 3. Unsnap the front panel from the top and bottom used in the 7B92A. Contact alignment and spacing is of the sub-panel. critical to the operation of these switches. Therefore, 4.
Page 50: Adjustment After Repair
Surround instrument with polyethylene If the Tektronix instrument is to be shipped to a sheeting to protect the finish of the instrument. Tektronix Service Center for service or repair, attach a Cushion the instrument on all sides by tightly tag ;showing: owner (with address) and the name of an...
Page 51: Performance Check/Calibration Preliminary Information
To prevent unnecessary recalibration of calibration of the 7B92A every 1000 hours of operation, other parts of the instrument, readjust only if the or every six months if used infrequently. Before tolerance given in the Check part of the step is not met.
Page 52 Frequency, 20 MHz to 100 MHz; 20 MHz triggering checks TEKTRONIX SG 503 Signal Generator output amplitude, variable from Sine-Wave Generator. 100 mV to 500 mV. b. TEKTRONIX 191 Sine- Wave Generator. High-Frequency Frequency, 245 MHz to 1000 High-frequency triggering TEKTRONIX SG 504 Signal Generator MHz;...
Page 53 Three-inch shaft, 3/32 inch bit. Used to adjust variable Xcelite R-3323. resistors. Low Capacitance’ 1-1/2 inch shaft. Used to adjust variable Tektronix Part No. 003- Screwdriver capacitors 0000-00. Used for calibration only; NOT used for performance check. Requires a TM 500-Series Power Module.
Page 54: Part I Performance Check
The following procedure is intended to be used for inspection and periodic calibration checks to confirm that the 7B92A is operating within acceptable limits. This procedure is concerned with those portions of the instrument calibration that are essential to measurement accuracy and correct operation. Removal of the side covers is not necessary to perform this procedure in that all checks are made from the front panel.
Page 55: Trigger Sensitivity
7. Tee connector, bnc 4. Medium-frequency signal generator 8. 50 n cables (2) Control Settings A1. Check Main Triggering Level Range Set the 7B92A controls as follows: a. Set the vertical amplifier plug-in unit controls as follows: MAIN TRIGGERING SLOPE...
Page 56: Main Triggering Level Range
Performance Check/Calibration-7B92A throughout its range, and that triggering occurs at least 3.5 divisions above and below the center horizontal graticule line. See Fig. 5-2 for reference. Fig. 5-1. Main Triggering level range. i. Check-set the MAIN TRIGGERING SOURCE to EXT and repeat part g of this step.
Page 57 Performance Check/Calibration-7B92A b. Set the 7B92A controls as follows: j. Check-set the Delayed Triggering SOURCE to MAIN TRIGGERING INT and repeat part i of this step. COUPLING A4. Check AC LF Reject Operation Delayed Triggering SLOPE Disconnect the 50-n cable from the DLY’D...
Page 58 TRIG IN connector and reconnect it to the MAIN TRIG IN connector. Disconnect the 50-n cable from the low- frequency sine-wave generator and connect the medium- c. Set the 7B92A controls as follows: frequency signal generator to the vertical amplifier plug- MAIN TRIGGERING in unit input using the 50-n cable.
Page 59 Performance Check/Calibration-7B92A m. Check-for a stable display with no more than Check-set the MAIN TRIGGERING LEVEL 0.05 division of jitter. control near "0" and check that the TRIG’D light is on. n. Check-change Delayed Triggering SOURCE to d. Check-that the display is not triggered (TRIG’D INT and repeat m of this step.
Page 60: Horizontal System
Performance Check/Calibration-7B92A B. HORIZONTAL SYSTEM Equipment Required 1. Oscilloscope 3. Time-mark generator 2. Wide-band vertical amplifier plug-in unit 4. 50-Ò cable B1. Set Basic Sweep Calibration a. Set the 7B92A controls as follows: MAIN TRIGGERING SLOPE LEVEL Midrange MODE NORM COUPLING...
Page 61 Performance Check/Calibration-7B92A Table 5-2. SWEEP TIMING Tolerance TIME/DIV Time-Mark (+15°C to +35°C) DLY'D Generator DLY TIME Time/Division Setting Delaying Sweep Delayed Sweep 0.2 s 0.2 s 0.2 s Within 0.16 div Within 0.16 div 0.1 s 0.1 s 0.1 s Within 0.16 div...
Page 62 Delaying sweep. B5 Check Variable Time/Division Range Check-repeat parts d and e of this step to Remove the 7B92A from the oscilloscope plug- check linearity of the Delayed (bottom) sweep. in compartment.
Page 63: Variable Time/Division Range
.1 s 2 ms 50 ms Selector multi-pin connector to P760 and re-install the 50 ms I ms 10 ms 7B92A into the plug-in compartment. Turn on power to 20 ms 0.5 ms 10 ms the oscilloscope. 10 ms 0.2 ms...
Page 64: Fast Delay Time Accuracy
Performance Check/Calibration-7B92A B7 Check Fast Delay Time Accuracy Table 5-6. Set the TIME/DIV OR DLY TIME switch to 50 FAST DIFFERENTIAL DELAY TIME ACCURACY ns, DLY’D Time/Division switch (pull knob out) to 10 ns (then push knob in), and adjust the MAIN TRIGGERING...
Page 65 Set the TIME/DIV OR DLY TIME switch to 20 ps, DLY’D Time/Division switch (pull knob out) to 50 ns (then This completes the Performance Check procedure push knob in), and adjust the MAIN TRIGGERING of the 7B92A. LEVEL control for a stable display (TRIG’D light on). 5-15...
Page 66: Trigger Sensitivity
Performance Check/Calibration-7B92A PART II-CALIBRATION The following procedure returns the 7B92A to correct calibration. All limits and tolerances given in this procedure are calibration guides and should not be interpreted as instrument specifications except as specified in the Specification section of this manual. Where possible, instrument performance is checked before an adjustment is made.
Page 67: Preliminary Procedure
5-34 Install the amplifier plug-in unit in a vertical compartment of the oscilloscope. Check Sweep Length 5-34 Install the 7B92A into a plug-in extender; install Adjust 2 ns Timing 5-34 the extender into the horizontal compartment of the oscilloscope. Adjust Delayed Sweep 20 ns Timing...
Page 68: Trigger Sensitivity (Sn B070000-Above)
Plug-in extender 3. High-frequency signal generator Tee connector, bnc 50 Ω cables (2) 4. Medium-frequency signal generator 5. Low-frequency sine-wave generator Control Settings Set the 7B92A controls as follows: Vertical Amplifier Plug-In Unit Position Midrange MAIN TRIGGERING SLOPE Polarity + up...
Page 69: Dc Balance. (Circle Denotes Correct Trigger Point.)
Performance Check/Calibration-7B92A Adjust-Int DC Bal, R75, for a sweep trigger point at graticule centerline (TRIG’D light on). See Fig. 5-5 for reference. A3. Adjust Main Triggering Sensitivity Adjust-Trig Sens, R1 75, for a sweep trigger point at approximately 0.3 division from bottom of waveform as MAIN TRIGGERING LEVEL control is rotated through negative (-) portion of its range.
Page 70 A8. Adjust Delayed Triggering External DC Balance IN connector. Set Delayed Triggering SOURCE to EXT. Set the 7B92A controls as follows: Adjust-Ext DC Bal, R230, for a sweep trigger MAIN TRIGGERING point at graticule centerline (TRIG’D light on). See Fig.
Page 71 Disconnect the 50-) cable from the DLY’D COUPLING set to: TRIG IN connector and reconnect it to the MAIN TRIG IN (1.) AC connector. (2) DC Set the 7B92A controls as follows: (Set the MAIN and Delayed Triggering LEVEL controls as necessary.) MAIN TRIGGERING COUPLING 5-21...
Page 72 (1) AC volts/division switch to 0.2 V. (2) DC Set the 7B92A controls as follows: Set the Delayed Triggering SOURCE to EXT and repeat part j of this step. MAIN TRIGGERING COUPLING Disconnect the 50-C cable from the medium-...
Page 73 TRIG IN connector and reconnect it to the MAIN TRIG IN connector. Disconnect the 50-n cable from the DLY’D TRIG IN connector and reconnect it to the MAIN TRIG IN Set the 7B92A controls as follows: connector. MAIN TRIGGERING Set the Delayed Triggering LEVEL control to COUPLING RUNS AFTER DELAY TIME.
Page 74 Performance Check/Calibration-7B92A Check-set the MAIN TRIGGERING LEVEL control near "0" and check that the TRIG’D light is on. Check-change MAIN TRIGGERING SOURCE to INT and observe that only one sweep is Check-that the display is not triggered (TRIG’D displayed and SINGLE SWEEP RESET pushbutton goes light off) at either end of the MAIN TRIGGERING LEVEL out.
Page 75 DLY’D Time/Division Connect a 50-Ω cable from the tee connector VARIABLE (CAL IN) DELAY TIME MULT to the 7B92A MAIN TRIG IN connector. INTENSITY As desired Set the oscilloscope intensity and focus CONTRAST As desired controls for the desired display.
Page 76: Dc Balance. (Circle Denotes Correct Trigger Point.)
Performance Check/Calibration-7B92A Adjust-Gate TD Bias, R155, counterclockwise until a stable display occurs, then clockwise until display is unstable. Connect the digital voltmeter between TP145 and chassis ground. B2. Adjust Main Triggering Arming Tunnel Diode Bias Adjust-Arming Bias, R145, counterclockwise until a stable display just occurs.
Page 77: Main Triggering Level Range. (Circle Denotes Triggering Limits.)
See IN connector. Fig. 5-11 for reference. Set the 7B92A controls as follows: Check-set the MAIN TRIGGERING SLOPE to MAIN TRIGGERING and repeat part d for the negative slope of the waveform.
Page 78 Adjust-Trig Sens, R325, for a Delayed sweep connector. trigger point at approximately 0.5 division from bottom of waveform as Delayed Triggering LEVEL control is Set the 7B92A controls as follows: rotated through negative (-) portion of its range. See Fig. 5-10 for reference. MAIN TRIGGERING...
Page 79 Performance Check/Calibration-7B92A (2) AC HF REJ (3) DC (Set the MAIN TRIGGERING LEVEL control as necessary.) Check-set the MAIN TRIGGERING SOURCE to EXT and repeat part e of this step. Disconnect the 50-Ω cable from the MAIN TRIG IN connector and reconnect it to the DLY’D TRIG IN connector.
Page 80 0.2 V. Check-for a stable display (TRIG’D light on) with the Delayed Triggering COUPLING switch set to: Set the 7B92A controls as follows: (1) AC (2) DC MAIN TRIGGERING COUPLING Set the Delayed Triggering SOURCE to EXT...
Page 81 Performance Check/Calibration-7B92A Adjust the oscilloscope intensity control for vertical amplifier plug-in unit normal viewing. volts/division switch to 1 V. vertical amplifier plug-in unit Set the MAIN TRIGGERING LEVEL control for volts/division switch to 0.5 V. a stable display (TRIG’D light on).
Page 82 Performance Check/Calibration-7B92A Set the MAIN TRIGGERING SOURCE to INT, Set the MAIN TRIGGERING SOURCEto EXT; MODE to SINGLE SWEEP, and SOURCE to EXT. press the SINGLE SWEEP RESET pushbutton. pushbutton should be lit. Press SINGLE SWEEP RESET pushbutton; it should be lit.
Page 83: Horizontal System
Set the vertical amplifier plug-in unit for approximately two divisions of display. Position the display in the center graticule area. Set the MAIN Set the 7B92A controls as follows: TRIGGERING LEVEL control for a stable display (TRIG’D light on). MAIN TRIGGERING...
Page 84: Correct Dtm Scale And Delay Start Adjustment (Circle)
Performance Check/Calibration-7B92A Set the DELAY TIME MULT dial to 9.00. Adjust-Sweep Registration, R525, to align first Position the first time-mark to the second time-mark of Delayed sweep with first time-mark of vertical graticule line, using the POSITION control. See Delaying sweep.
Page 85 Remove the 7B92A from the oscilloscope plug- Align the display to place leading edge of in compartment and re-install the 7B92A with extender Delayed sweep time-mark at intersection of horizontal into the compartment.
Page 86 Performance Check/Calibration-7B92A Set the TIME/DIV OR DLY TIME, DLY’D k. Disconnect the 50-Ω cable from the calibration Time/Division in Alternate mode (PULL FOR ALT), and generator. time-mark generator as indicated in Table 5-7; set DELAY TIME MULT dial to 0.0.
Page 87 Performance Check/Calibration-7B92A NOTE d. Check-using the settings given in Table 5-8, check If the time-mark generator used does not have 1-2-5 sweep accuracy over the center eight divisions within the sequence markers, apply 1 unit markers in place of 2 tolerance given in Table 5-8.
Page 88: Variable Time/Division Range
Time/Division Variable factor for approximately two divisions of display. Selector multi-pin connector to P760 and re-install the 7B92A into the plug-in compartment. Turn on power to Set the DELAY TIME MULT dial to 0.90. the oscilloscope.
Page 89: Fast Delay Time Accuracy
Performance Check/Calibration-7B92A Align the leading edge of the time-mark to the Table 5-10. center vertical graticule line, using the POSITION control. See Fig. 5-15 for reference. DIFFERENTIAL DELAY TIME ACCURACY Time-mark TIME/DIV OR DLY’D Generator DLY TIME Time/Division Setting .2 s 5 ms 0.1 s...
Page 90 Check-jitter must not exceed 0.9 division. approximately 1.0 (position the time-mark to the center of the graticule). This completes the Calibration procedure of the 7B92A. Set the DLY’D Time/Division switch to 0.2 us. Turn the DELAY TIME MULT dial slowly to position the time-mark near the graticule center (turn up INTENSITY control as necessary).
Page 91 Section 6-7B92A OPTIONS No Options available at the time of this printing. Refer to the CHANGE INFORMATION in the back of this manual for Options available after this printing. REV A, JUN 1978...
Page 92 Part number, instrument type or number, serial number, and modification number if applicable. If a part you have ordered has been replaced with a new or improved part, your local Tektronix, Inc Field Office or representative will contact you concerning any change in part number Change information, if any, is located at the rear of this manual.
Page 93 Replaceable Electrical Parts-7B92A CROSS INDEX-MFR. CODE NUMBER TO MANUFACTURER Mfr. Code Manufacturer Address City, State, Zip 00853 SANGAMO ELECTRIC CO., S. CAROLINA DIV. P 0 BOX 128 PICKENS, SC 29671 01002 GENERAL ELECTRIC COMPANY, INDUSTRIAL AND POWER CAPACITOR PRODUCTS DEPARTMENT...
Page 94 Replaceable Electrical Parts-7B92A Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number 670-3275-00 CKT BOARD ASSY:EXTERNAL INPUT 80009 670-3275-00 670-3271-00 CKT BOARD ASSY:SOURCE SWITCH 80009 670-3271-00 670-3272-00 CKT BOARD ASSY:COUPLING SWITCH 80009 670-3272-00 670-3270-00...
Page 95 Replaceable Electrical Parts-7B92A Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number C140 283-0119-00 XB070000 CAP., FXD, CER DI:2200PF, 5%, 200V 72982 855-535B222J C141 283-0140-00 B010100 B069999X CAP., FXD, CER DI:4.7PF, 5%, 50V 72982...
Page 96 Replaceable Electrical Parts-7B92A Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number C393 283-0177-00 CAP., FXD, CER DI:1UF, +80-20%, 25V 72982 8131N039 E 105Z C394 283-0204-00 XB070000 CAP., FXD, CER DI:0.01UF, 20%, 50V 72982...
Page 97 Replaceable Electrical Parts-7B92A Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number C844 290-0527-00 CAP. , FXD, ELCTLT:15UF, 20%, 20V 90201 TDC156M020FL C852 283-0644-00 CAP. , FXD, MICA D:150PF, 1%, 500V 00853 D151E151FO C874 281-0603-00 CAP., FXD, CER DI:39PF, 5%, 500V...
Page 98 Replaceable Electrical Parls-7B92A Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number CR433 152-0141-02 SEMICOND DEVICE:SILICON, 30V, 150MA 07910 1N4152 CR434 152-0153-00 SEMICOND DEVICE:SILICON, 15V, 50MA 80009 152-0153-00 CR443 150-1004-00 B010100 B063027 LAMP, LED:RED, 2.5V, 15MA...
Page 99 Replaceable Electrical Parts-7B92A Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number CR786 152-0141-02 SEMICOND DEVICE:SILICON, 30V, 15OMA 07910 1N4152 CR799 152-0141-02 SEMICOND DEVICE:SILICON, 30V, 150MA 07910 1N4152 CR802 152-0141-02 SEMICOND DEVICE:SILICON, 30V, 150MA...
Page 100 Replaceable Electrical Parts-7B92A Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number LR891 108-0543-00 COIL, RF:FIXED, 1.1UH 80009 108-0543-00 LR893 108-0543-00 COIL, RF:FIXED, 1.1UH 80009 108-0543-00 LR895 108-0543-00 COIL, RF:FIXED, 1.1UH 80009 108-0543-00 LR971...
Page 101 Replaceable Electrical Parts-7B92A Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number Q342 151-0427-00 XB070000 TRANSISTOR:SILICON, NPN 80009 151-0427-00 Q346 151-0427-00 XB070000 TRANSISTOR:SILICON, NPN 80009 151-0427-00 Q348 151-0223-00 B010100 B069999X TRANSISTOR:SILICON, NPN 80009 151-0223-00...
Page 102 Replaceable Electrical Parts-7B92A Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number Q804 151-0325-00 TRANSISTOR:SILICON, PNP, SEL FROM 2N4258 80009 151-0325-00 Q806 151-0424-00 TRANSISTOR:SILICON, NPN 80009 151-0424-00 Q1810 151-0220-00 TRANSISTOR:SILICON, PNP 80009 151-0220-00 Q312...
Page 103 Replaceable Electrical Parts-7B92A Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number 315-0750-00 RES., FXD, CMPSN:75 OHM, 5%, 0.25W 01121 CB7505 315-0152-00 RES., FXD, CMPSN:1.5K OHM, 5%, 0.25W 01121 CB1525 311-1268-00 B010100 B069999X RES., VAR, NONWIR:1OK OHM, 10%, 0.50W...
Page 104 Replaceable Electrical Parts-7B92A Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number 315-0272-00 B010100 B069999 RES., FXD, CMPSN:2.7K OHM, 5%, 0.25W 01121 CB2725 315-0361-00 B070000 RES., FXD, CMPSN:360 OHM, 5%, 0.25W 01121 CB3615 315-0162-00...
Page 105 Replaceable Electrical Parts-7B92A Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number R116 315-0112-00 B010100 B069999X RES., FXD, CMPSN:1.1K OHM, 5%, 0.25W 01121 CB1125 R117 315-0112-00 B010100 B069999X RES., FXD, CMPSN:1.1K OHM, 5%, 0.25W...
Page 106 Replaceable Electrical Parts-7B92A Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number 321-0260-00 XB070000 RES., FXD, FILM:4.99K OHM, 1%, 0.125W 91637 MFF1816G49900F R167 315-0102-00 XB070000 RES., FXD, CMPSN:1K OHM, 5%, 0.25W 01121 CB1025 R170...
Page 107 Replaceable Electrical Parts-7B92A Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number R255 311-1559-00 B070000 RES., VAR, NONWIR:1OK OHM, 20%, 0.50W 73138 91A-10001M R256 315-0132-00 B010100 B069999 RES., FXD, CMPSN:1.3K OHM, 5%, 0.25W 01121...
Page 108 Replaceable Electrical Parts-7B92A Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number R317 315-0112-00 B010100 B069999X RES., FXD, CMPSN:l.11OHM, 5%, 0.25W 01121 CB1125 R320 311-1224-00 XB070000 RES., VAR, NONWIR:500 OHM, 20%, 0.50W 32997 3386F-T04-501...
Page 109 Replaceable Electrical Parts-7B92A Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number R388 321-0248-00 B040000 B069999X RES., FXD, FILM:3.74K OHM, l%, 0.125W 91637 MFF1816G37400F R401 315-0100-00 RES., FXD, CMPSN:10 OHM, 5%, 0.25W 01121 CB1005...
Page 110 Replaceable Electrical Parts-7B92A Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number R468 321-0183-00 RES., FXD, FILM:787 OHM, l%, 0.125W 91637 MFF1816G787ROF R469 321-0124-00 RES., FXD, FILM:191 OHM, 1%, 0.125W 91637 MFF1816G191ROF R470 315-0820-00 RES., FXD, CMPSN:82 OHM, 5%, 0.25W...
Page 111 Replaceable Electrical Parts-7B92A Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number R532 315-0300-00 RES., FXD, CMPSN:30 OHM, 5%, 0.25W 011:’1 CB3005 R536 315-0101-00 RES., FXD, CMPSN:100 OHM, 5%, 0.25W 01121 CB1015 R538 315-0221-00 RES., FXD, CMPSN:220 OHM, 5%, 0.25W...
Page 112 Replaceable Electrical Parls-7B92A Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number R635 315-0472-00 XB060000 RES., FXD, CMPSN:4.7K OHM, 5%, 0.25W 01121 CB4725 R701 315-0202-00 RES., FXD, CMPSN:2K OHM, 5%, 0.25W 01121 CB2025 R702 315-0472-00 RES., FXD, CMPSN:4.7K OHM, 5%, 0.25W...
Page 113 Replaceable Electrical Parts-7B92A Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number R786 315-0154-00 RES. , FXD, CMPSN:150K OHM, 5%, 0.25W 01121 CB1545 R787 315-0154-00 RES., FXD, CMPSN:150K OHM, 5%, 0.25W 01121 CB1545 R788 315-0513-00 RES., FXD, CMPSN:51K OHM, 5%, 0.25W...
Page 114 Replaceable Electrical Parts-7B92A Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number R882 315-0472-00 B060000 RES., FXD, CMPSN:4.7K OHM, 5%, 0.25W 01121 CB4725 R884 315-0270-00 B010100 B059999X RES., FXD, CMPSN:27 OHM, 5%, 0.25W 01121...
Page 115 Replaceable Electrical Parts-7B92A Tektronix Serial/Model No. Ckt No. Part No. Dscont Name & Description Code Mfr Part Number R978 315-0221-00 RES., FXD, CMPSN:220 OHM, 5%, 0.25W 01121 CB2215 260-0721-00 SWITCH, REED:SPDD, 35A 12617 MRH-DT 670-3271-00 PUSHBUTTON ASSY:4 BUTTON 80009 670-3271-00...
Page 116 TM 11-6625-2925-24/T0 33A1-10-242-2 PART NUMBER - NATIONAL STOCK NUMBER CROSS REFERENCE INDEX NATIONAL NATIONAL PART STOCK PART STOCK NUMBER FSCM NUMBER NUMBER FSCM NUMBER BB1015 01121 5905-00-420-7127 CB1845 01121 5905-00-114-5344 BB1215 01121 5905-00-255-3700 CB2015 01121 5905-00-909-3919 BB2405 01121 5905-00-929-9589 CB2025 01121 5905-00-102-5289 BB4305...
Page 117 TM 11-6625-2925-24/T0 33A1-10-242-2 PART NUMBER - NATIONAL STOCK NUMBER CROSS REFERENCE INDEX NATIONAL NATIONAL PART STOCK PART STOCK NUMBER FSCM NUMBER NUMBER FSCM NUMBER CB4315 01121 5905-00-766-9392 CB9155 01121 5905-00-456-0592 CB4325 01121 5905-00-909-3796 CEBTO-1821F 75042 5905-00-763-4658 CB4705 01121 5905-00-909-3798 EB4725 01121 5905-00-556-5256 CB4715...
Page 118 TM 11-6625-2925-24/T0 33A1-10-242-2 PART NUMBER - NATIONAL STOCK NUMBER CROSS REFERENCE INDEX NATIONAL NATIONAL PART STOCK PART STOCK NUMBER FSCM NUMBER NUMBER FSCM NUMBER 151-0302-00 80009 5961004363286 260113200 80009 5930-00-369-7913 151-0302-00 80009 5961-00-436-3286 260-1132-00 80009 5930-00-369-7913 151-0325-00 80009 5961-00-593-8065 260-1133-00 80009 5930-00-369-7915 151-0333-00...
Page 119 TM 11-6625-2925-24/T0 33A1-10-242-2 PART NUMBER - NATIONAL STOCK NUMBER CROSS REFERENCE INDEX NATIONAL NATIONAL PART STOCK PART STOCK NUMBER FSCM NUMBER NUMBER FSCM NUMBER 283-0159-00 80009 5910-00-190-0138 315-0133-00 80009 5905-00-445-3828 283-0177-00 80009 5910-00-451-3206 315-0151-00 80009 5905-00-577-9598 283-0178-00 80009 5910-00-451-5671 315-0152-00 80009 5905-00-445-3831 283-0191-00...
Page 120 TM 11-6625-2925-24/T0 33A1-10-242-2 PART NUMBER - NATIONAL STOCK NUMBER CROSS REFERENCE INDEX NATIONAL NATIONAL PART STOCK PART STOCK NUMBER FSCM NUMBER NUMBER FSCM NUMBER 315-0512-00 80009 5905-00-437-0283 321-0208-00 80009 5905-00-926-8792 315-0512-00 80009 5905-00-437-0283 321-0208-00 80009 5905-00-926-8792 315-0561-00 80009 5905-00-437-0288 321-0212-00 80009 5905-00-434-5058 315-0562-00...
Page 121 The overline on a signal name indicates that the signal performs its intended function when it goes to the low state. Abbreviations are based on ANSI Y1.1-1972. Other ANSI standards that are used in the preparation of diagrams by Tektronix, Inc. are: Y14.15, 1966 Drafting Practices.
Page 122 Some transistors have voltages present on their cases. Disconnect the power source before replacing parts. The voltages and waveforms shown on diagrams were taken with the 7B92A front panel controls set as follows: VOLTAGES & WAVEFORMS* MAIN TRIGGERING...
Page 123 If a part you have ordered has been replaced Attaching parts for Parts of Detail Part with a new or improved part, your local Tektronix, Inc Field Office or representative will contact you concerning Attaching Parts always appear in the same any change in part number.
Page 124 Replaceable Mechanical Parts-7B92A CROSS INDEX-MFR. CODE NUMBER TO MANUFACTURER Mfr. Code Manufacturer Address City, State, Zip 00779 AMP, INC. P 0 BOX 3608 HARRISBURG, PA 17105 01295 TEXAS INSTRUMENTS, INC., SEMICONDUCTOR GROUP P O BOX 5012, 13500 N CENTRAL EXPRESSWAY...
Page 125 Replaceable Mechanical Parts-7B92A Fig. & Index Tektronix Serial/Model No. Part No. Dscont Oty 1 2 3 4 5 Name & Description Code Mfr Part Number 366-1168-00 KNOB: BLACK CAP AND RED BODY 80009 366-1168-00 213-0153-00 . SETSCREW: 5-40 X 0.125 INCH, HEX SOC STL...
Page 126 Replaceable Mechanical Parts-7B92A Fig. & IndexTektronix Serial/Model No. Part No. Dscont Oty 1 2 3 4 5 Name & Description Code Mfr Part Number 1-39 136-0263-04 . SOCKET, PIN TERM: FOR 0.025 INCH SQUARE PIN 22526 48059 ----- ----- CKT BOARD ASSY: COUPLING SW(SEE A3 EPL)
Page 127 Replaceable Mechanical Parts-7B92A Fig. & Index Tektronix Serial/Model No. Part No. Dscont Oty 1 2 3 4 5 Name & Description Code Mfr Part Number 1-74 ----- ----- CKT BOARD ASSY: SWEEP LOGIC(SEE A7 EPL) (ATTACHING PARTS) 211-0155-00 SCREW, EXT, RLV B: 4-40 X 0.375 INCH, SST...
Page 128 Replaceable Mechanical Parts-7B92A Fig. & Index Tektronix Serial/Model No. Part No. Dscont Oty 1 2 3 4 5 Name & Description Code Mfr Part Number 1-103 ----- ----- . CKT BOARD ASSY: MAIN INTERFACE (SEE A6 EPL) (ATTACHING PARTS) -104 211-0116-00 .
Page 129 Replaceable Mechanical Parts-7B92A Fig. & Index Tektronix Serial/Model No. Part No. Dscont Oty 1 2 3 4 5 Name & Description Code Mfr Part Number 1-146 105-0601-00 B010100 B062409 .. DRUM, CAM SW: 80009 105-0601-00 105-0601-01 B062410 .. DRUM, CAM SW:...
Page 130 Serial/Model No. Part No. Dscont Oty 1 2 3 4 5 Name & Description Code Mfr Part Number 070-1752-01 MANUAL, TECH: OPERATORS 80009 070-1752-01 070-1751-02 MANUAL, TECH: INSTRUCTION 80009 070-1751-02 FIGURE 2 ACCESSORIES REV. A JUN 1978 7B92A DUAL TIME BASE...
Page 131 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 tested. Sometimes, due to printing and shipping requirements, we can’t get these changes immediately into printed manuals.
Page 132 CALIBRATION TEST EQUIPMENT REPLACEMENT Calibration Test Equipment Chart This chart compares TM 500 product performance to that of older Tektronix equipment. Only those characteristics where significant specification differences occur, are listed. In some cases the new instrument may not be a total functional replacement.
Page 133 TM 11-6625-2925-24/T0 33A1-10-242-2 APPENDIX A REFERENCES DA Pam 310-4 Index of Technical Manuals, Technical Bulletins, Supply Manuals (Types 7, 8, and 9), Supply Bulletins, and Lubrication Orders. DA Pam 310-7 US Army Equipment Index of Modification Work Orders. SB 38-100 Preservation, Packaging, Packing and Marking Materials, Supplies, and Equipment Used by the Army.
Page 134 (welding, grinding, riveting, straightening, facing, remachining, or Model 7B92A. It authorizes categories of mainte- nance resurfacing) to restore serviceability to an item by for specific maintenance functions on repairable items and components and the tools and equipment required...
Page 135: Remarks
TM 11-6625-2925-24/TO 33A1-10-242-2 the appropriate subcolumn(s), the lowest level of maintenance authorized to perform the function listed in B-4. Tool and Test Equipment Requirements (Sec column 3. This figure represents the active time required III) to perform that maintenance function at the indicated category of maintenance.
Page 136 TM 11-6625-2925-24/TO 33A1-10-242-2 SECTION II. MAINTENANCE ALLOCATION CHART DUAL TIME BASE, TEKTRONIX MODEL 7B92A GROUP MAINTENANCE MAINTENANCE LEVEL TOOLS AND NUMBER COMPONENT ASSEMBLY FUNCTION EQUIPMENT REMARKS DUAL TIME BASE, TEKTRONIX MODEL Inspect 7B92A Replace Repair 1, 2, 3, 5, 7 thru 14...
Page 137 TM 11-6625-2925-24/T0 33A1-10-242-2 SECTION III. TOOL AND TEST EQUIPMENT REQUIREMENTS DUAL TIME BASE, TEKTRONIX MODEL 7B92A TOOL OR TEST MAINTENANCE TOOL EQUIPMENT CATEGORY NOMENCLATURE NATIONAL/NATO NUMBER REF CODE STOCK NUMBER TRANSISTOR TESTER (TEK 577) 6625-00-202-3475 MULTIMETER AN/USM-223 6625-00-999-7465 OSCILLOSCOPE (TEK 7904)
Page 138 TM 11-6625-2925-24/T0 33A1-10-242-2 SECTION IV. REMARKS REFERENCE CODE REMARKS ADJUST AS PART OF NEXT HIGHER ASSEMBLY. FRONT PANEL OPERATING ADJUSTMENTS ONLY. REPAIRED AS PART OF NEXT HIGHER ASSEMBLY. žU.S. GOVERNMENT PRINTING OFFICE: 1980 0- 603-128/227 REGION 3-1...
Page 139 7B92A Fig. 8-1. Circuit Board Locations Fig. 8-2. Block Diagram...
Page 140 7B92A Fig. 8-3. A3—Coupling Switch Circuit Board. Fig 8-5. A-2--Source Switch Circuit Board Fig. 8-7. A-1—External Input Circuit Board. *See Parts List for serial number ranges Fig. 8-4. A5—Delayed Triggering Switch Circuit Board. Fig. 8-6. A4—Mode Switch Circuit Board.
Page 143 Fig. 8-8. A8—Main Trigger Circuit Board (SN B079999 & up).
Page 145 Fig. 8-9. A8—Main Trigger Circuit Board (SN B069999 & below).
Page 147 Fig. 8-10. A9—Delayed Trigger Circuit Board (SN B070000 & up).
Page 149 Fig. 8-11. A9—Delayed Trigger Circuit Board (SN B069999 & below).
Page 151 Fig. 8-12. A6—Interface Circuit Board.
Page 153 Fig. 8-13. A6—Interface Circuit Board.
Page 156 Fig. 8-14. A6—Interface Circuit Board...
Page 160 Fig. 8-17. A12-Readout Circuit Board.
Page 163 7B92A Fig. 8-18. Sweep Adjustment Locations...
Page 164 7B92A Fig. 8-20. Delayed Trigger Adjustment Location (SN B069999 & below) Fig. 8-22. Delayed Trigger Adjustment Location (SN B070000 & up.)
Page 165 7B92A DUAL TIME BASE Fig. 1. Exploded REV. B, NOV. 1975...
Page 166 By Order of the Secretaries of the Army, the Navy, and the Air Force: E. C. MEYER General, United States Army Chief of Staff Official: LEW ALLEN, JR., General USAF J. C. PENNINGTON Chief of Staff Major General, United States Army Logistics Command Distribution: Active Army:...
Page 168 PIN: 045525 000...

Tektronix 7B92A Maintenance Manual

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