Tektronix TDS3000 Series Service Manual
  1. Manuals
  2. Brands
  3. Tektronix Manuals
  4. Test Equipment
  5. TDS3000 Series
  6. Service manual
Tektronix TDS3000 Series Service Manual

Tektronix TDS3000 Series Service Manual

Digital phosphor oscilloscopes
Hide thumbs Also See for TDS3000 Series:
Table of Contents

Advertisement

Quick Links

Service Manual
TDS3000 Series
Digital Phosphor Oscilloscopes
071-0382-01
This document supports firmware version 2.00
and above.
Warning
The servicing instructions are for use by qualified
personnel only. To avoid personal injury, do not
perform any servicing unless you are qualified to
do so. Refer to all safety summaries prior to
performing service.

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the TDS3000 Series and is the answer not in the manual?

Questions and answers

Related Manuals for Tektronix TDS3000 Series

Summary of Contents for Tektronix TDS3000 Series

  • Page 1 Service Manual TDS3000 Series Digital Phosphor Oscilloscopes 071-0382-01 This document supports firmware version 2.00 and above. Warning The servicing instructions are for use by qualified personnel only. To avoid personal injury, do not perform any servicing unless you are qualified to do so.
  • Page 2 Copyright Tektronix, Inc. All rights reserved. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material. Specifications and price change privileges reserved. Printed in the U.S.A. Tektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000...
  • Page 3 Tektronix, with shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located.
  • Page 5 ........5–6 TDS3000 Series Service Manual...
  • Page 6 ........10–2 TDS3000 Series Service Manual...

  • Page 7: Table Of Contents

    Table of Contents List of Figures Figure 3–1: TDS3000 series block diagram ..... 3–1 Figure 6–1: Pulling the hub pin .
  • Page 8 ..10–10 Figure 10–5: Exploded view, rear case half ..... . 10–12 TDS3000 Series Service Manual...
  • Page 9 ....6–6 Table 7–1: TDS3000 Series options ......
  • Page 10 Table of Contents TDS3000 Series Service Manual...
  • Page 11 Recharge Batteries Properly. Recharge batteries for the recommended charge cycle only. Do Not Operate Without Covers. Do not operate this product with covers or panels removed. Use Proper Fuse. Use only the fuse type and rating specified for this product. TDS3000 Series Service Manual...
  • Page 12 CAUTION indicates a hazard to property including the product. Symbols on the Product. The following symbols may appear on the product: Battery CAUTION WARNING Protective Ground Refer to Manual High Voltage (Earth) Terminal Information viii TDS3000 Series Service Manual...
  • Page 13 This product contains a Nickel Cadmium (NiCd) battery, which must be recycled or disposed of properly. For the location of a local battery recycler in the U.S. or Canada, please contact: RBRC (800) BATTERY Rechargeable Battery Recycling Corp. (800) 227-7379 P.O. Box 141870 www.rbrc.com Gainesville, Florida 32614 TDS3000 Series Service Manual...
  • Page 14 General Safety Summary TDS3000 Series Service Manual...
  • Page 15 Use Care When Servicing With Power On. Dangerous voltages or currents may exist in this product. Disconnect power, remove battery (if applicable), and disconnect test leads before removing protective panels, soldering, or replacing components. To avoid electric shock, do not touch exposed connections. TDS3000 Series Service Manual...
  • Page 16 Service Safety Summary TDS3000 Series Service Manual...
  • Page 17 Preface This is the Service Manual for the following TDS3000 Series Digital Phosphor Oscilloscopes: TDS3012 TDS3014 TDS3032 TDS3034 TDS3052 TDS3054 This manual provides information to troubleshoot and repair the instrument to the module level. Related Manuals Additional documentation for the instrument is contained in the related manuals listed below.
  • Page 18 Preface Service Programs Tektronix offers calibration service and a program to extend repair coverage beyond the warranty period. These programs are cost-effective ways to maintain genuine Tektronix service for your instrument. Ask your Tektronix distributor for details. Contacting Tektronix Product...

  • Page 19: Table 1-1: Specifications

    Specifications This appendix contains specifications for the TDS3000 series oscilloscopes. All specifications are guaranteed unless noted as “typical.” Typical specifications are provided for your convenience but are not guaranteed. Specifications that are marked with the symbol are checked in Performance Verification.
  • Page 20 ≥ 100:1 ≥ 100:1 ≤ 300 MHz ≥ 50:1 ≥ 50:1 — ≤ 500 MHz ≥ 30:1 — — Differential delay, 100 ps between any two channels with the same scale and coupling typical settings 1–2 TDS3000 Series Service Manual...
  • Page 21 Selectable between 20 MHz, 150 MHz (not available on TDS3012 or limit, typical TDS3014), or Full Lower frequency limit, 7 Hz for 1 M , reduced by a factor of ten when using a 10X passive AC coupled, typical probe; 140 kHz for 50 1–3 TDS3000 Series Service Manual...
  • Page 22 ±10 V 100 mV/div to 995 mV/div ±100 V 1V/div to 10 V/div ± (0.005 Offset accuracy | offset – position | + 0.1 div) 0.02 term (gain component) derated at 0.00025/ C above 30 C 1–4 TDS3000 Series Service Manual...
  • Page 23 External trigger 100 mV from DC to 50 MHz, increasing to 500 mV at 300 MHz External/10 trigger 500 mV from DC to 50 MHz, increasing to 3 V at 300 MHz 1–5 TDS3000 Series Service Manual...
  • Page 24 B trigger event and the first B trigger event trigger, typical Minimum Pulse — B event width, 2 ns Width, typical Maximum Fre- — B event frequency, 250 MHz quency, typical 1–6 TDS3000 Series Service Manual...
  • Page 25 Per methods of EN50082-1 and EN61000-4-3, the increase in trace noise is not to exceed four major divisions peak-to-peak. Ambient RF fields may induce triggering when trigger threshold is offset less than two major divisions from ground reference. 1–7 TDS3000 Series Service Manual...
  • Page 26 30% RH at 60 °C Typical operating range for floppy disks: 20% to 80% RH below 32 °C, derate upper limit to 21% RH at 50 °C Pollution Degree Pollution Degree 2: Typical home or office environment. 1–8 TDS3000 Series Service Manual...
  • Page 27 Depth: 149 mm (5.9 in) Weight Oscilloscope only: 3.2 kg (7.0 lbs) With accessories and carry case: 4.1 kg (9.0 lbs) When packaged for domestic shipment: 5.5 kg (12.0 lbs) Optional battery pack: 2 kg (4.5 lbs) 1–9 TDS3000 Series Service Manual...
  • Page 28 This product was certified by the GOST ministry of Russia to be in Russia compliance with all applicable EMC regulations. FCC Compliance: Emissions comply with FCC Code of Federal Regulations 47, Part 15, U.S.A. Subpart B, Class A Limits 1–10 TDS3000 Series Service Manual...
  • Page 29 CAT II Local-level mains (wall sockets). Equipment at this level includes appliances, portable tools, and similar products. Equipment is usually cord-connected CAT I Secondary (signal level) or battery operated circuits of electronic equipment 1–11 TDS3000 Series Service Manual...
  • Page 30 Specifications 1–12 TDS3000 Series Service Manual...
  • Page 31 Probe compensation Self calibration For more detailed information about operating information, see the TDS3000 Series User Manual. For information about unpacking and inspecting the instrument, see Unpacking and Repacking Instructions on page 6–43 of this manual. 2–1 TDS3000 Series Service Manual...
  • Page 32 If you are not using a battery, use the accessory tray in the battery compartment to store probes and other accessories. CAUTION. To avoid damage to the disk drive, do not transport the oscilloscope with a floppy disk in the disk drive. 2–2 TDS3000 Series Service Manual...
  • Page 33 Every few months, run your oscilloscope until it shuts down and then recharge the battery completely to keep your battery pack at peak perfor- mance. Refer to the General Safety Summary for information about proper nickel-cad- mium battery disposal. 2–3 TDS3000 Series Service Manual...
  • Page 34 (>30 V , >42 V Protection against this condition is provided when you attach the Tektronix-sup- plied grounding wire from the terminal on the rear panel to earth ground. If you use a different grounding wire, it must be at least 18 gauge.
  • Page 35 3. Press on both sides of the battery compartment door to snap it closed. To remove the battery, do these steps: 1. Open the battery compartment door. 2. Lift the battery handles and pull the battery out of the oscilloscope. 2–5 TDS3000 Series Service Manual...
  • Page 36 Battery charging in oscilloscope with oscillo- 18 hours scope turned on or off Battery charging with TDS3CHG external 3 hours charger NOTE. Charge the battery before using it for the first time or after prolonged storage. 2–6 TDS3000 Series Service Manual...
  • Page 37 NOTE. If you remove an application module, the features provided by the application module become unavailable. You can reinstall the module to restore the features. 5. Close the module door. Application modules Contacts 2–7 TDS3000 Series Service Manual...
  • Page 38 NOTE. If you power off the oscilloscope, eject a floppy disk, or there is a power outage during the upgrade process, you must power off the oscilloscope and do the firmware upgrade procedure, starting at step 6, before you can use the oscilloscope. 9. Remove the floppy disk. 2–8 TDS3000 Series Service Manual...
  • Page 39 3. Slide out the communication module and store it in an ESD-shielded bag. Install the blank cover if no other communication module is to be installed. Latching tab 2–9 TDS3000 Series Service Manual...
  • Page 40 UTILITY VERTICAL HORIZONTAL TRIGGER ACQUIRE 2. Push a bottom screen button to select a menu item. If a pop-up menu appears, continue to push the screen button to select an item from the pop-up menu. 2–10 TDS3000 Series Service Manual...
  • Page 41 4. Certain menu choices require you to set a numerical value to complete the setup. Use the general purpose knob to adjust the parameter value. Push the COARSE button to make larger adjustments. SELECT COARSE VERTICAL POSITION 2–11 TDS3000 Series Service Manual...
  • Page 42 7. Vertical MENU. Adjusts the scale, position, and offset of waveforms. Sets the input parameters. 8. Trigger MENU. Adjusts the trigger functions. 9. Acquire MENU. Sets the acquisition modes and horizontal resolution, and resets the delay time. 2–12 TDS3000 Series Service Manual...
  • Page 43 9. SET TO 50%. Sets the trigger level to the midpoint of the waveform. 10. AUTOSET. Automatically sets the vertical, horizontal, and trigger controls for a usable display. 11. FORCE TRIG. Forces an immediate trigger event. 2–13 TDS3000 Series Service Manual...
  • Page 44 21. Power switch. Turns power to on or standby. 22. Wrist-strap ground. Use to connect a wrist strap when working with ESD-sensitive circuits. This connector is not a safety ground. 23. MENU OFF. Clears menu from the display. 2–14 TDS3000 Series Service Manual...
  • Page 45 11. Horizontal readout shows the main or zoom time/division. 12. Auxiliary waveform readouts show the vertical and horizontal scale factors of the math or reference waveforms. 13. Channel readouts show the channel scale factor, coupling, input resistance, bandwidth limit, and invert status. 2–15 TDS3000 Series Service Manual...
  • Page 46 For example, if you want to add an automatic measurement, push the MEASURE button to set up the measurement. Then, push the QUICKMENU button to return to the Quick Scope menu with the measurement also in the display. 2–16 TDS3000 Series Service Manual...
  • Page 47 NOTE. Items in the Quick Scope display not mentioned above are also contained in the regular display. Those items are described on page 2–15. Other QuickMenus. Some optional application packages include a custom QuickMenu display. Those QuickMenus contain specific features that are important for the application. 2–17 TDS3000 Series Service Manual...
  • Page 48 PROBE COMP ≤5VRMS 1. PROBE COMP. Square wave signal source to compensate probes. 2. CH1, CH 2, (CH3, CH4). Channel inputs with TekProbe interface. 3. EXT TRIG. External trigger input with TekProbe interface (two-channel models only). 2–18 TDS3000 Series Service Manual...
  • Page 49 6. GPIB port. Connect to a controller for remote programmability. 7. RS-232 port. Connect to a controller or terminal for remote programmability or printing. 8. VGA port. Connect to a VGA monitor to display the screen image. 2–19 TDS3000 Series Service Manual...
  • Page 50 If using the probe hook-tip, ensure a proper connection by firmly twisting the tip onto the probe. CH 1 2. Check the shape of the displayed waveform. Overcompensated Undercompensated Compensated correctly 3. If necessary, adjust your probe. Repeat as necessary. 2–20 TDS3000 Series Service Manual...
  • Page 51 3. Push the System screen button to select Cal. 4. Push the Signal Path screen button. 5. Push OK Compensate Signal Path. This procedure takes several minutes to complete. NOTE. The signal path compensation does not include calibration to the probe tip. 2–21 TDS3000 Series Service Manual...
  • Page 52 Operating Information 2–22 TDS3000 Series Service Manual...

  • Page 53: Figure 3-1: Tds3000 Series Block Diagram

    Ch 2 Ch 3 Ch 4 Figure 3–1: TDS3000 series block diagram Power Supply The power supply converts AC line voltage to 15 VDC to power all internal circuits and an external power connector. It also supplies power to charge the optional battery pack.
  • Page 54 The processor system contains a MPC680DC Power PC microprocessor that controls the entire instrument. The processor system also contains flash ROM, system RAM, and interfaces to communication modules, the parallel printer port, and the floppy disk drive. 3–2 TDS3000 Series Service Manual...
  • Page 55 The front-panel board also generates the probe compensation output signal and provides an interface to the application modules. Disk Drive The disk drive module consists of a 3.5 inch, IBM format, floppy disk drive. The disk drive is controlled by circuitry on the Main Board. 3–3 TDS3000 Series Service Manual...
  • Page 56 Theory of Operation 3–4 TDS3000 Series Service Manual...
  • Page 57 These procedures cover all TDS3000 oscilloscope models. Please disregard checks that do not apply to the specific model you are testing. Photocopy the test record on the next two pages and use them to record the performance test results for your oscilloscope. 4–1 TDS3000 Series Service Manual...
  • Page 58 982.4 mV 1.018 V 50 mV/div 632.4 mV 667.6 mV 50 mV delta 340.5 mV 359.5 mV 90 mV/div –339.3 mV –290.7 mV 200 mV/div 9.900 V 10.10 V 1 V/div –10.30 V –9.698 V 4–2 TDS3000 Series Service Manual...
  • Page 59 — Channel 4 rising slope stable trigger — trigger sensitivity trigger sensitivity falling slope stable trigger — Sample rate and delay time accuracy –2 divisions +2 divisions 4–3 TDS3000 Series Service Manual...
  • Page 60 5. Push the Execute screen button. 6. Push the OK Confirm Run Test screen button. A dialog box displays the result when the self test completes. Push the MENU OFF screen button to continue operation. 4–4 TDS3000 Series Service Manual...
  • Page 61 11. Push the MEASURE menu button. 12. Push the Select Measurement screen button. 13. Push the – more – screen button until you can select the Mean measure- ment. 14. Push the vertical MENU button. 4–5 TDS3000 Series Service Manual...
  • Page 62 16. Repeat steps 15a through 15e for each row in the table. 17. Push the waveform off button. 18. Repeat steps 9 through 17 for each channel of the oscilloscope (not including the external trigger input on some models). 4–6 TDS3000 Series Service Manual...
  • Page 63 13. Set the horizontal SCALE to 10 s/div. 14. Push the vertical MENU button. 15. Push the Coupling screen button and select 50 input resistance. 16. Push the MEASURE menu button. 17. Push the Select Measurement screen button. 4–7 TDS3000 Series Service Manual...
  • Page 64 24. Verify that the peak-to-peak measurement is ≥425 mV. 25. Push the waveform off button. 26. Repeat steps 11 through 25 for each channel of the oscilloscope (not including the external trigger input on some models). 4–8 TDS3000 Series Service Manual...
  • Page 65 15. Push the MEASURE menu button. 16. Push the Select Measurement screen button. 17. Push the – more – screen button until you can select the Pk-Pk measure- ment. 18. Set the vertical SCALE to 500 mV/div. 4–9 TDS3000 Series Service Manual...
  • Page 66 25. Push the Slope screen button and select the / (rising) slope. 26. Push the waveform off button. 27. Repeat steps 11 through 26 for each channel of the oscilloscope (not including the external trigger input on some models). 4–10 TDS3000 Series Service Manual...
  • Page 67 12. Adjust the trigger LEVEL as necessary to obtain a triggered display. 13. Adjust the horizontal POSITION control to move the trigger location to the center of the screen (50%). 14. Push the DELAY button to turn delay on. 4–11 TDS3000 Series Service Manual...
  • Page 68 17. Check that the rising edge of the marker crosses the center horizontal graticule line within ±2 divisions of center graticule. NOTE. One division of displacement from graticule center corresponds to a 100 ppm time base error. This completes the performance verification procedure. 4–12 TDS3000 Series Service Manual...
  • Page 69 BNC female-to-female adapter Two female BNC connectors Tektronix part number 103-0028-00 Adjustment tool Non conducting shaft with Tektronix part number diameter ≤2.5 mm (≤0.1 in) 003-1433-00 The number required is reduced by two if you are adjusting a two-channel oscilloscope. 5–1 TDS3000 Series Service Manual...
  • Page 70 If all steps in the procedure are completed successfully, a “Pass” message is displayed and the new calibration constants take affect. If the procedure fails for any reason, the oscilloscope reverts to the previous calibration settings. 5–2 TDS3000 Series Service Manual...
  • Page 71 DC voltage to the specified value. Four-channel TDS3000 DC voltage Series Oscilloscope source Equal-length BNC cables BNC tees DC voltage Two-channel TDS3000 Series source Oscilloscope Equal-length BNC cables BNC tee 5–3 TDS3000 Series Service Manual...
  • Page 72 NOTE. If the leveled sine wave generator you are using has an output head, connect the head directly to the channel input. Make sure that the AC generator output is set for a 50-ohm load for all AC-source steps. 5–4 TDS3000 Series Service Manual...
  • Page 73 DC voltage to the specified value. DC voltage source TDS3000 Series Oscilloscope Ext Trig NOTE. If the DC voltage source you are using has an output head, connect the head directly to the external trigger input. 5–5 TDS3000 Series Service Manual...
  • Page 74 6. Push the MENU OFF button. 7. Push the UTILITY button. 8. Push the System screen button to select Cal. 9. Push the Factory screen button. 10. Push the OK Do Factory Calibration screen button to start the adjustment process. 5–6 TDS3000 Series Service Manual...
  • Page 75 Return to Previous Screen screen button. 12. Continue the adjustment process until it is complete. You can abort the process at any time by pushing the MENU OFF button or by changing to a different menu. 5–7 TDS3000 Series Service Manual...
  • Page 76 Adjustment Procedures 5–8 TDS3000 Series Service Manual...
  • Page 77 CAUTION. Static discharge can damage any semiconductor component in this instrument. 1. Minimize handling of static-sensitive modules. 2. Transport and store static-sensitive modules in their static protected containers or on a metal rail. Label any package that contains static-sensitive modules. 6–1 TDS3000 Series Service Manual...
  • Page 78 Dirt acts as an insulating blanket, preventing efficient heat dissipa- tion. Dirt also provides an electrical conduction path that could cause an oscilloscope failure, especially under high-humidity conditions. 6–2 TDS3000 Series Service Manual...

  • Page 79: Table 6-1: Internal Inspection Check List

    Metal chassis pieces Bent, fractured, or broken pieces. Repair or replace defective hard- ware. Circuit boards Loose, broken, or corroded solder Remove failed module and replace connections. Burned circuit with a new module. boards. Burned, broken, or cracked circuit-run plating. 6–3 TDS3000 Series Service Manual...
  • Page 80 6. Dry all components and assemblies in an oven or drying compartment using low-temperature (52 C to 66 C / 125 F to 150 F) circulating air. Lubrication. There is no periodic lubrication required for the oscilloscope. 6–4 TDS3000 Series Service Manual...
  • Page 81 List of Modules The Mechanical Parts List chapter provides a list of all replaceable modules. Any electrical or mechanical module, assembly, or part listed in the parts list is referred to as a module. 6–5 TDS3000 Series Service Manual...

  • Page 82: Table 6-2: Removal And Installation Procedures

    Front chassis and display Front chassis 6–23 Module Display module Inverter cable Inverter board Display module Display Inverter board Inverter board 6–26 and backlights Backlight tubes Front panel Knobs 6–31 Front-panel board Flex circuit keypad contacts Keypads 6–6 TDS3000 Series Service Manual...

  • Page 83: Handle

    4. Use the needle-nose pliers to pull the metal pin in the display-side hub outward approximately 5 mm (0.2 in). If you accidentally pull the metal pin all the way out, reinsert it half way. See Figure 6–1. 6–7 TDS3000 Series Service Manual...

  • Page 84: Figure 6-1: Pulling The Hub Pin

    7. Pull outward on the handle at the hub to release the display-side hub assembly. You may need to rotate the handle back and forth slightly to help release the hub assembly. See Figure 6–2. 6–8 TDS3000 Series Service Manual...

  • Page 85: Figure 6-2: Releasing The Hub Assembly

    9. Rotate the handle downward to its lowest position. 10. Use the needle-nose pliers to pull the metal pin in the remaining hub outward approximately 5 mm (0.2 in). 6–9 TDS3000 Series Service Manual...
  • Page 86 2. Verify that the front and rear cases fit together tightly. 3. Grasp the handle from both sides and stretch it over the over the top of the oscilloscope. Rotate the handle into its full upright position. The Tektronix logo should appear right-side up when looking down on the handle.

  • Page 87: Figure 6-3: Reinstalling A Hub Cover

    3. Remove the communication module cover or any communication module that may be installed. 4. Lift the rear cover off of the oscilloscope chassis. 5. Remove both feet if necessary to replace them, otherwise leave the feet installed in the back cabinet. 6–11 TDS3000 Series Service Manual...

  • Page 88: Figure 6-4: Communication Module Guide

    Figure 6–4: Communication module guide 7. Carefully open the connector that captures the disk drive flex cable and disconnect the flex cable from the disk drive. See Figure 6–5. 8. Lift the disk drive out of the oscilloscope chassis. 6–12 TDS3000 Series Service Manual...

  • Page 89: Figure 6-5: Flex Cable To The Disk Drive

    4. Place the disk drive into its cavity in the chassis. The flex cable should align with its connector on the disk drive. NOTE. If you are installing a new disk drive, remove the plastic bezel from the new disk drive and discard the bezel. See Figure 6–6. 6–13 TDS3000 Series Service Manual...

  • Page 90: Figure 6-6: Removing The Bezel From A New Disk Drive

    NOTE. The screw installed below the parallel printer connector is 0.25 inches long. Make sure you use the correct-length screw when attaching the rear cabinet to the rear chassis. 9. Install the communication module cover or a communication module. 6–14 TDS3000 Series Service Manual...

  • Page 91: Figure 6-7: Cables To The Main Board

    Line trigger cable to J980 Parallel port ribbon cable to J810 External power cable to J200 DC power connector Cable routes under battery board DC power spade connector Figure 6–7: Cables to the main board 6–15 TDS3000 Series Service Manual...
  • Page 92 17. Remove the AC line power cable from the line filter and from the tab on the chassis. 18. Remove the two screws that secure the line filter to the rear chassis. 19. Carefully bend the tabs that secure the fan to the rear chassis and remove the fan. 6–16 TDS3000 Series Service Manual...

  • Page 93: Figure 6-8: Installing The Fan, Line Filter, And Line Power Cable

    Figure 6–8: Installing the fan, line filter, and line power cable 1. Insert the fan cable through the hole in the rear chassis and place the fan in its cavity. The fan label should face toward the rear chassis. See Figure 6–9. 6–17 TDS3000 Series Service Manual...

  • Page 94: Figure 6-9: Installing The Line Filter And Line Power Cable

    The snap post on the bracket should be on the side of the power supply that is opposite the fuse. 7. Attach the AC line power cable to the power supply. 6–18 TDS3000 Series Service Manual...
  • Page 95 DC power cable to the front chassis. See Figure 6–7. 22. Connect the parallel printer port cable to the main board. See Figure 6–7. 23. Install the three screws to attach the rear chassis assembly to the front chassis. 6–19 TDS3000 Series Service Manual...

  • Page 96: Figure 6-10: Disk Drive And Display Module Cable Connectors

    J800 on the main board, then pull the flat ribbon cable from the connector. See Figure 6–10. Inverter Display cable connector J950 connector J500 Front - panel connector J700 Screwdriver Disk drive connector J800 Figure 6–10: Disk drive and display module cable connectors 6–20 TDS3000 Series Service Manual...

  • Page 97: Figure 6-11: Main Board

    Main board Screws T-15 (4) Board snap Release board snap Figure 6–11: Main Board 7. Release the two snaps that hold the main board and then lift the main board out of the front-panel assembly. 6–21 TDS3000 Series Service Manual...
  • Page 98 7. Insert the disk drive cable (either end) and push down on the connector to close it. 8. Connect the inverter cable to the main board at J950. 9. Connect the front-panel cable to the main board at J700. 6–22 TDS3000 Series Service Manual...

  • Page 99: Figure 6-12: Front Chassis

    3. Lift the front chassis out of the front case. Lifting the left end of the chassis slightly ahead of the right end helps to clear a slight interference at the right end of the chassis. 6–23 TDS3000 Series Service Manual...

  • Page 100: Figure 6-13: Display Module

    See Figure 6–13. 6. Push the tabs through the chassis holes to remove the display module. Display chassis Chassis assembly Side up and push out Figure 6–13: Display module 6–24 TDS3000 Series Service Manual...

  • Page 101: Figure 6-14: Front-Panel Cable Routing

    6. Route the front panel cable through the cable post on the front panel and tuck part of the cable just under the bottom corner of the front panel board. See Figure 6–14. Notch Front-panel cable Front chassis Cable post Figure 6–14: Front-panel cable routing 6–25 TDS3000 Series Service Manual...

  • Page 102: Figure 6-15: Disconnect Back Light Cables

    2. Disconnect the back light cables from the inverter board. See Figure 6–15. Back light cables Display module Display chassis Inverter board assembly Figure 6–15: Disconnect back light cables 6–26 TDS3000 Series Service Manual...

  • Page 103: Figure 6-16: Remove Inverter Board

    Repeat for the other end of the inverter board. See Figure 6–16C. Rotate inverter board and slide out Push tab in, lift end of board Inverter board Inverter chassis Lift tab Figure 6–16: Remove inverter board 6–27 TDS3000 Series Service Manual...

  • Page 104: Figure 6-17: Remove Display From Display Chassis

    Figure 6–17: Remove display from display chassis 7. Lift the right side of the display, then pull the display to the right to clear the display from the tabs on the left side of the display chassis. 6–28 TDS3000 Series Service Manual...

  • Page 105: Figure 6-18: Remove Back Light Tube

    8. Use your thumb to push down the tab next to a back light tube, at the same time pulling the back light tube cable to slide the back light out of the display. See Figure 6–18. Push tab down Display module Backlight tubes (2) Figure 6–18: Remove back light tube 6–29 TDS3000 Series Service Manual...

  • Page 106: Figure 6-19: Installing Display Glass Shield

    5. Press down firmly on the right side of the display until it clicks into place under the two display-chassis extended tabs. The tabs must be over the aluminum shield on the back of the display. 6–30 TDS3000 Series Service Manual...

  • Page 107: Figure 6-20: Remove Front-Panel Knobs

    2. Remove the front-panel knobs by firmly pulling each knob away from the front panel. Careful prying with a small screwdriver or similar tool may be be necessary. See Figure 6–20. Remove knobs (7) Figure 6–20: Remove front-panel knobs 6–31 TDS3000 Series Service Manual...

  • Page 108: Figure 6-21: Remove Front-Panel Board

    Figure 6–21. Board snap (6) Board snap (5) Board snap (4) Board snap (2) Board snap (3) Board snap (1) Lift board from this corner Figure 6–21: Remove front-panel board 6–32 TDS3000 Series Service Manual...

  • Page 109: Figure 6-22: Remove Front-Panel Keypads

    6. Remove the front-panel and bezel button keypads by lifting them away from the front panel. Do not touch the keypad contacts or place them on a contaminated surface. See Figure 6–22. Front panel keypad Bezel keypad Figure 6–22: Remove front-panel keypads 6–33 TDS3000 Series Service Manual...

  • Page 110: Figure 6-23: Checking Front-Panel Lock Nuts

    6. Route the front-panel cable as described in steps 5 and 6 on page 6–25. 7. Install the front-panel knobs by firmly pushing each knob onto the front panel knob shaft. Align the flat side of the knob shaft with the flat part of the knob hole. 6–34 TDS3000 Series Service Manual...
  • Page 111 Troubleshooting This section contains information and procedures to help you isolate a defective module in a TDS3000 series oscilloscope. WARNING. Before doing this or any other procedure in this manual, read the General Safety Summary and Service Safety Summary found at the beginning of this manual.

  • Page 112: Figure 6-24: Primary Troubleshooting Procedure

    Does Perform the power-on the scope display the troubleshooting procedure power-up screen? (Figure 6–25). Does Perform the Module Isolation the scope pass all the troubleshooting procedure (Figure 6–31). diagnostics? Done. Figure 6–24: Primary troubleshooting procedure 6–36 TDS3000 Series Service Manual...

  • Page 113: Figure 6-25: Power-On Troubleshooting Procedure

    ( 1.2 V) connector diagram at right). Are all voltages within Proceed to Figure 6–30. tolerance? –15 VDC ( 1.2 V) –5 VDC ( 0.15 V) Troubleshoot power distribution problem (Figure 6–26). Figure 6–25: Power-on troubleshooting procedure 6–37 TDS3000 Series Service Manual...

  • Page 114: Figure 6-26: Ac Power Supply Troubleshooting Procedure

    Pin 1 J100 Battery board Is there Replace the AC +15 volts between pins Power Supply module. 13 and 18? AC power supply OK. Troubleshoot battery board (Figure 6–27). Figure 6–26: AC power supply troubleshooting procedure 6–38 TDS3000 Series Service Manual...

  • Page 115: Figure 6-27: Battery Module Troubleshooting Procedure

    Power distribution problem on main board, front panel Are voltages within board, or display. Proceed tolerance? to Figure 6–28. Power distribution OK. Proceed to module isolation troubleshooting (Figure 6–31). Figure 6–27: Battery module troubleshooting procedure 6–39 TDS3000 Series Service Manual...

  • Page 116: Figure 6-28: Front Panel/Display Backlight Power Troubleshooting

    Figure 6–27 (page 6–39). Replace the Front Panel module. Power distribution problem on main Are voltages within board or display module. Proceed to tolerance? Figure 6–29. Replace high voltage inverter board. Figure 6–28: Front panel/display backlight power troubleshooting 6–40 TDS3000 Series Service Manual...

  • Page 117: Figure 6-29: Display/Main Module Supply Voltage Troubleshooting

    (Figure 6–25 through 6–29). Return the TDS3000 oscilloscope to the nearest Tektronix Service Center for repair. Figure 6–30: No display, power supply voltages OK 6–41 TDS3000 Series Service Manual...

  • Page 118: Figure 6-31: Module Isolation Troubleshooting Procedure

    Front Panel Front Panel (or Main board) Comm module (or Main board) Main board Disk Drive Main board (or disk unit or cable) App Modules Front Panel (or App keys) Figure 6–31: Module isolation troubleshooting procedure 6–42 TDS3000 Series Service Manual...
  • Page 119 Use a corrugated cardboard shipping carton having a test strength of at least 275 pounds (125 kg) and with an inside dimension at least six inches (15.25 cm) greater than the instrument dimensions. If the instrument is being shipped to a Tektronix Service Center, enclose the following information: The owner’s address...
  • Page 120 Maintenance 6–44 TDS3000 Series Service Manual...

  • Page 121: Table 7-1: Tds3000 Series Options

    Options The TDS3000 series options, listed in Table 7–1, provide power cords and documentation packages for international customers. Table 7–1: TDS3000 Series options Option Description Substitute universal European power cord (220 V) Substitute United Kingdom power cord (240 V) Substitute Australian power cord (240 V)
  • Page 122 Options 7–2 TDS3000 Series Service Manual...
  • Page 123 Electrical Parts List Refer to the Mechanical Parts List chapter for a complete listing and description of replaceable parts for the oscilloscope. 8–1 TDS3000 Series Service Manual...
  • Page 124 Electrical Parts List 8–2 TDS3000 Series Service Manual...
  • Page 125 Diagrams See Figure 3–1 on page 3–1 for a block/interconnect diagram of the oscilloscope. There are no additional diagrams in this chapter. 9–1 TDS3000 Series Service Manual...
  • Page 126 Diagrams 9–2 TDS3000 Series Service Manual...
  • Page 127 Mechanical Parts List This chapter contains a list of the replaceable modules for the TDS3000 series oscilloscope. Use this list to identify and order replacement parts. Parts Ordering Information Replacement parts are available through your local Tektronix field office or representative.
  • Page 128 Module Servicing Modules can be serviced by selecting one of the following three options. Contact your local Tektronix service center or representative for repair assistance. Module Exchange. In some cases you may exchange your module for a reman- ufactured module. These modules cost significantly less than new modules and meet the same factory specifications.
  • Page 129 Exploded Views Figures 10–1 through 10–5 on the following pages show the module-level exploded views of the TDS3000 series oscilloscope. The adjacent page is the list of components for that exploded view, indexed by the numbers in the figure. 10–3...
  • Page 130 Mechanical Parts List Figure 10–1: Exploded view, front case half 10–4 TDS3000 Series Service Manual...
  • Page 131 PL,W/LOCKWASHER DESCRIPTION 10-1-8 200–4416–00 COVER:FRONT,PROTECTIVE,13.850 X 7.090 X 7X318 200–4416–00 2.050,PC/ABS,FR110,BLUE 10-1-9 366–0772–00 KNOB,CAP:PC/ABS BAYBLEND FR110,SIVER TK1163 366–0772–00 GRAY,0.425 DIA X 0.520 H 10-1-10 366–0771–00 KNOB,CAP:PC/ABS BAYBLEND FR110,SILVER TK1163 366–0771–00 GRAY,0.650 DIA X 0.520 H 10–5 TDS3000 Series Service Manual...
  • Page 132 Mechanical Parts List Figure 10–2: Exploded view, LCD display 10–6 TDS3000 Series Service Manual...
  • Page 133 131–6521–00 CONTACT,ELEC:EMI,CLIP–ON,0.38 L X 0.500 W (2 TK2647 9760718005 CONTACTS) X 0.45 HIGH,ELECTROLESS NICKEL PLATE 10-2-11 211–0927–00 SCREW,PT:K35–1.57 X 10.0MM,T10,STL,BLACK 0KB01 K35–1.57 X 10 PN PT STL/BLK 10-2-12 131–6643–00 CONTACT,ELEC:GROUNDING,0.169 L,0.320 TK2647 131–6643–00 DEEP,ELECTROLESS NICKEL,TDS3012 10–7 TDS3000 Series Service Manual...
  • Page 134 Mechanical Parts List Figure 10–3: Exploded view, main board and disk dive 10–8 TDS3000 Series Service Manual...
  • Page 135 671–4721–XX CIRCUIT BD ASSY:MAIN BOARD,2 CH,500 MHZ 80009 671–4720–XX 671–4078–XX CIRCUIT BD ASSY:MAIN,4 CH,100 MHZ 80009 671–4078–XX 671–4722–XX CIRCUIT BD ASSY:MAIN BOARD,4 CH,300 MHZ 80009 671–4722–XX 671–4023–XX CIRCUIT BD ASSY:MAIN BOARD,4 CH,500 MHZ 80009 671–4023–XX 10–9 TDS3000 Series Service Manual...
  • Page 136 Mechanical Parts List Figure 10–4: Exploded view, circuit board assembly and fan 10–10 TDS3000 Series Service Manual...
  • Page 137 AL,5.150 X 0.785,CHROMATE 10-4-14 260–2443–00 SWITCH,PWR:DPDT,PUSH PUSH ALT ACT,PC PINS 31918 NE18–00–EE–N–47–0 1A (130238) 10-4-15 384–1813–00 SHAFT:BAYBLEND FR110,SILVER GREY TK6179 384–1813–00 10-4-16 174–3766–00 CA ASSY, SP:DESCRETE,POWER 060D9 174–3766–00 SUPPLY,LDC,24AWG,4.5 L,1X16,0.1CTR,MTA AMP 1–644512–6 X 5.0 L,1X1 10–11 TDS3000 Series Service Manual...
  • Page 138 Mechanical Parts List Figure 10–5: Exploded view, rear case half 10–12 TDS3000 Series Service Manual...
  • Page 139 020–2264–00 MANUAL,TECH:SET,USER & REFERENCE, TK2548 020–2264–00 FRENCH,TDS30XX 020–2265–00 MANUAL,TECH:SET,USER & REFERENCE, TK2548 020–2265–00 GERMAN,TDS30XX 020–2266–00 MANUAL,TECH:SET,USER & REFERENCE, TK2548 020–2266–00 ITALIAN,TDS30XX 020–2267–00 MANUAL,TECH:SET,USER & REFERENCE, TK2548 020–2267–00 SPANISH,TDS30XX 020–2268–00 MANUAL,TECH:SET,USER & REFERENCE, TK2548 020–2268–00 PORTUGUESE,TDS30XX 10–13 TDS3000 Series Service Manual...
  • Page 140 AC3000 OSC SOFT CARRY CASE ORDER BY DESC _________ RM3000 RACK MOUNT KIT ORDER BY DESC _________ AD007 GPIB TO LAN ADAPTER ORDER BY DESC _________ WSTRO WAVESTAR SOFTWARE FOR OSC ORDER BY DESC 071–0382–XX MANUAL,TECH:SEVICE,TDS30XX TK2548 071–0382–XX 10–14 TDS3000 Series Service Manual...

This manual is also suitable for:

Tds3012Tds3014Tds3032Tds3034Tds3052Tds3054

Table of Contents

Save PDF