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Tektronix TLA Series Service Manual

Digitizing oscilloscope modules
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Service Manual
TLA Series
Digitizing Oscilloscope Modules
(TLA7D1, TLA7D2, TLA7E1, & TLA7E2)
070-9780-03
This document applies to firmware version 1.00
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.
www.tektronix.com

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  • Page 1 Service Manual TLA Series Digitizing Oscilloscope Modules (TLA7D1, TLA7D2, TLA7E1, & TLA7E2) 070-9780-03 This document applies to firmware version 1.00 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. Tektronix, Inc., 14200 SW Karl Braun Drive, Beaverton, OR 97077...
  • 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 ........6- - 1 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 6 ........10- - 3 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 7: Table Of Contents

    ......6- -23 Figure 6- -11: Rear EMI gasket replacement ....6- -24 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 8 Table 10- -1: Standard accessories ......10- -1 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 9 Do Not Operate in an Explosive Atmosphere. Keep Product Surfaces Clean and Dry. Provide Proper Ventilation. Refer to the manual’s installation instructions for details on installing the product so it has proper ventilation. TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 10 CAUTION indicates a hazard to property including the product. Symbols on the Product. The following symbols may appear on the product: WARNING Protective Ground CAUTION Double High Voltage (Earth) Terminal Refer to Manual Insulated TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 11 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. TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 12 Service Safety Summary viii TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 13 Preface This is the service manual for the Tektronix Logic Analyzer Series Digitizing Oscilloscope Modules (TLA7D1, TLA7D2, TLA7E1, & TLA7E2). Read this preface to learn how this manual is structured, what conventions it uses, and where you can find other information related to servicing this product. Read the...
  • Page 14 Related Manuals The following manuals are available as part of the Tektronix Logic Analyzer Family documentation set. The procedures in this manual assume that the service personnel have access to all manuals listed in the following table. Other manuals may exist outside of the table as the product line offerings change.

  • Page 15: Table I: Tektronix Logic Analyzer Family Documentation

    TLA600 Series Logic Analyzers. TLA600 Logic Analyzer. Performing periodic or after-repair function- al or performance verifications, calibrations, and certifications for the TLA600 Logic Analyzer. Performing periodic or after-repair adjust- ments for the TLA600 Logic Analyzer. TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 16 Preface TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 17 H Supports removal and replacement of those boards or assemblies H Supports removal and replacement of fuses, chassis, and other mechanical parts listed in the replaceable parts list This manual does not support component-level fault isolation and replacement. xiii TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 18 Tektronix technicians provide warranty service at most Tektronix service locations worldwide. The Tektronix product catalog lists all service locations worldwide or you can visit us on our Customer Services World Center web site at http://www.tek.com/Mea- surement/Service.
  • Page 19 This phone number is toll free in North America. After office hours, please leave a voice mail message. Outside North America, contact a Tektronix sales office or distributor; see the Tektronix web site for a list of offices. TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 20 Introduction TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 21: Table 1- 1: Comparison Of Product Features

    2.5 GSample/second 500 MHz H A maximum record length of 15,000 samples with 8-bit vertical resolution H A full complement of internal triggering modes such as edge, pulse, logic, and setup hold 1- 1 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 22: Table 1- 2: Signal Acquisition System

    The limits given are for the ambient temperature range of 0_ C to +30_ C. Reduce the upper bandwidth frequencies by 5 MHz for each _C above +30_ C. The bandwidth must be set to FULL. 1- 2 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 23 Rise Time (ns) = 450 BW (MHz) GND input coupling disconnects the input connector from the attenuator and connects a ground reference to the input of the attenuator. 1- 3 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 24 1% of the more sensitive coarse setting. For example, between the 500 mV and 1 V ranges, the sensitivity can be set with 5 mV resolution. The Full Bandwidth settling errors are typically less than the percentages from the table. 1- 4 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 25: Table 1- 3: Timebase System

    25 MS/s to 2.5 GS/s on all channels simultaneously in a TLA7D2 1- - 2.5- - 5 sequence Record Length 512, 1024, 2048, 4096, 8192, and 15000 n Long Term Sample Rate Accuracy ±100 ppm over any interval ≥ 1 ms 1- 5 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 26: Table 1- 4: Trigger System

    30 kHz Low Frequency Reject One and one-half times the DC-coupled limits for frequencies above 80 kHz; attenuates signals below 80 kHz Noise Reject Three times the DC-coupled limits 1- 6 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 27: Table 1- 5: Front-Panel Connectors

    The trigger position errors are typically less than the values given here. These values are for triggering signals having a slew rate at the trigger point of ≥5% of full scale/ns. 1- 7 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 28: Table 1- 7: Certifications And Compliances

    TLA7D1 and TLA7E1 6.35 kg (14 lbs) TLA7D2 and TLA7E2 7.71 kg (17 lbs) Overall Dimensions Height: 262.05 mm (10.32 in) Width: 60.66 mm (2.39 in) Depth: 373.38 mm (14.70 in) 1- 8 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 29 The operating information is limited to the functions you need to perform the procedures found in this manual. You can find more detailed operating instructions in the Tektronix Logic Analyzer Family User Manual and in the online help. The following sections are included in this chapter: H The Installation section describes how to install the DSO module in the mainframe.

  • Page 30: Figure 2- 1: Logical Address Switches

    Static Logical Address. Static logical address selections set the address to a fixed value. If you use static logical addressing, each device within your system must have a unique address to avoid communication problems. 2- 2 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 31: Figure 2- 2: Module Retainer Screws And Ejector Mechanism

    Top retainer screws Ejector handle Simultaneously move handles apart to eject module. Bottom retainer screws Figure 2- 2: Module retainer screws and ejector mechanism 2- 3 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 32 Software Installation and Removal These procedures describe loading and unloading the performance verification and adjustment software. Refer to the Tektronix Logic Analyzer Family User Manual for information on installing or removing any other software. It is recommended you have ≥10 MB of free space on the hard drive before installing the software.
  • Page 33 Follow these instructions to install the PV/Adjust software. Software 1. Close all open windows on the desktop. 2. Insert Disk 1 of the Tektronix Logic Analyzer Family Application Software CD in the CD-ROM drive. 3. Click the My Computer Icon and double-click the CD-ROM drive.

  • Page 34: Figure 2- 3: Digitizing Oscilloscope Front Panel

    The two-channel model looks and operates the same, but without the CH 3 and CH 4 inputs. Descriptions of each connector and indicator follow the illustration. Figure 2- 3: Digitizing oscilloscope front panel 2- 6 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 35 500 mV Menu Overview The digitizing oscilloscope is controlled by interactive windows through the Windows application. The TLA Series application consists of the following windows: H System window. This window provides an overview of the entire logic analyzer. Use this window to navigate through the logic analyzer. Figure 2- -4 shows an example of the system window.

  • Page 36: Figure 2- 4: Typical System Window

    Refer to the online help for more information on the individual menus, icons, and fields within each window. 2- 8 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 37 Processor Board (A1) for power supplies, waveform data, and control signals. The Acquisition Board (A2) consists of the following circuits: H Attenuators H Acquisition System H VCO H Trigger H Intermodule Triggers 3- 1 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 38 Acquisition Board (A2) for power supplies, waveform data, and control signals. The Processor Board (A1) consists of the following circuits: H Main Processor System H DSP Processor System H Backplane Interface H Power Supplies 3- 2 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 39 Voltage regulators produce additional 15 V and 5 V supplies for use on the Acquisition Board (A2). All power connections to the Acquisition Board (A2) are made through the 100-pin ribbon cables. 3- 3 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 40 Theory of Operation 3- 4 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 41 The performance verification and adjustment software is provided on the product CD-ROM. If you have not already done so, refer to Software Installation and Removal beginning on page 2- -4 for instructions on installing the performance verification and adjustment software. 4- 1 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 42: Figure 4- 1: Calibration/Certification Procedure Flow Chart

    Print Calibration Data Report. Configure customer’s mainframe and modules as described in procedure. Create necessary Calibration Certificate. Set up test equipment. all certifications complete? Done Figure 4- 1: Calibration/certification procedure flow chart 4- 2 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 43 4. Adapter, male BNC-to-male BNC One required Tektronix part number 103-0029-XX 5. Digital multimeter with test leads DCV accuracy: 0.1% from - - 10 V to +100 V Tektronix DMM 900 Series 6. Connector, dual-banana Female BNC-to-dual banana Tektronix part number 103-0090-XX Accuracy: ≤0.01%...
  • Page 44 Setup It is assumed that the DSO module is properly installed and that all accessories are connected. Refer to the Tektronix Logic Analyzer Family User Manual for detailed installation instructions. Power on the instrument and allow a 30-minute warmup before continuing with any procedures in this section.

  • Page 45: Figure 4- 2: Calibration And Diagnostics Property Sheet

    No external equipment or user actions are needed to complete the procedure. The DSO module saves data generated by the self calibration in nonvolatile memory. 4- 5 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 46 2. Connect the DSO probe calibration fixture to the DSO module probe compensation output. 3. Click the Setup button in the DSO module icon. 4. Select the tab page for the input channel. 4- 6 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 47 If you are testing a TLA7E1 module, for example, move it to a higher slot number than all other TLA7E1 modules in the mainframe. This method avoids unnecessary module warm-up time. 4- 7 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 48 (n) in the INTERNAL_CAL Specifications section of the Tektronix Logic Analyzer Family User Manual. By running a full sequence, you will verify the performance of the DSO module. Table 4- 2: DSO PV/Adjust software performance verification tests...
  • Page 49 6. The program lists several different modules, referred to as DUT (Device Under Test). Enter the number corresponding to the module type that you want to test; then click Enter to continue. 4- 9 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 50 H RUN FULL SEQUENCE runs the entire sequence from beginning to end. This is the recommended selection. H RUN PARTIAL SEQUENCE runs part of the full sequence. The sequence runs from the selected starting point to the end of the sequence. 4- 10 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 51 You have the option of printing the file, viewing the file on screen, or transferring the file to another directory or host computer. 4- 11 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 52: Table 4- 3: Dso Module Fault Isolation

    6. DELAY_BETWEEN_CHAN A2 Acquisition board 7. TIMEBASE_ACCURACY A2 Acquisition board / Mainframe 8. GLITCH_TRIG_ACC A2 Acquisition board 9. TRIG_MAIN_ACC A2 Acquisition board 10. TRIG_MAIN_SENS A2 Acquisition board 11. PROBE_COMPENSATION A1 Processor board 4- 12 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 53 4. Select TLA_dig, then select the correct module type and the PV test option. 5. Follow the on-screen instructions to run the test for the DSO module. 6. Verify that this test passes before continuing with any other tests. 4- 13 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 54: Figure 4- 3: Initial Setup For The Dc Gain Accuracy Test

    3. After the test begins, make changes to test equipment settings and connec- tions when requested by the on-screen instructions. 4. Verify that all of the tests pass. If a test fails, check the Troubleshooting section on page 4- -12. 4- 14 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 55 3. After the test begins, make changes to test equipment settings and connec- tions when requested by the on-screen instructions. 4. Verify that all of the tests pass. If a test fails, check the Troubleshooting section on page 4- -12. 4- 15 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 56: Figure 4- 4: Initial Setup For The Analog Bandwidth Test

    Figure 4- 5. DSO module CH 1 Precision BNC cable Sine wave generator Type N-to-BNC adapter Figure 4- 4: Initial setup for the analog bandwidth test 4- 16 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 57: Figure 4- 5: Using A Power Meter To Monitor The Amplitude Of The Sine Wave Generator During The Analog Bandwidth Test

    2. Follow the on-screen instructions to run the test for each channel on the DSO module. 3. Verify that all of the tests pass. If a test fails, check the Troubleshooting section on page 4- -12. 4- 17 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 58 2. Follow the on-screen instructions to run the test for the DSO module. 3. Verify that all of the tests pass. If a test fails, check the Troubleshooting section on page 4- -12. 4- 18 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 59: Figure 4- 6: Initial Setup For The Delay Between Channels Test

    2. Follow the on-screen instructions to run the test for the DSO module. 3. Verify that all of the tests pass. If a test fails, check the Troubleshooting section on page 4- -12. 4- 19 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 60: Figure 4- 7: Initial Setup For The Timebase Accuracy Test

    2. Follow the on-screen instructions to run the test for the DSO module. 3. Verify that all of the tests pass. If a test fails, check the Troubleshooting section on page 4- -12. 4- 20 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 61 2. Follow the on-screen instructions to run the test for the DSO module. 3. Verify that all of the tests pass. If a test fails, check the Troubleshooting section on page 4- -12. 4- 21 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 62: Figure 4- 8: Initial Setup For The Main Trigger Accuracy Test

    2. Follow the on-screen instructions to run the test for the DSO module. 3. Verify that all of the tests pass. If a test fails, check the Troubleshooting section on page 4- -12. 4- 22 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 63: Figure 4- 9: Initial Setup For The Main Trigger Sensitivity Test

    2. Follow the on-screen instructions to run the test for the DSO module. 3. Verify that all of the tests pass. If a test fails, check the Troubleshooting section on page 4- -12. 4- 23 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 64: Figure 4- 10: Initial Setup For The Probe Compensation Test

    2. Follow the on-screen instructions to run the test for the DSO module. 3. Verify that all of the tests pass. If a test fails, check the Troubleshooting section on page 4- -12. 4- 24 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 65 H The DSO module requires a 30-minute warm-up time in a +20_ C to +30_ C environment before it is adjusted. Adjustments performed before the operating temperature has stabilized may cause errors in performance. 5- 1 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 66 For example, all the tests associated with the Base Calibration must pass before any other adjustments can be successfully completed. Table 5- -1 lists the tests and dependencies for each adjustment. 5- 2 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 67: Table 4- -1: Test Equipment

    Table 4- -1 on page 4- -3 lists the test equipment required to adjust the DSO module. Item numbers under each test in these procedures correspond to the test equipment listed in the Table 4- -1. 5- 3 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 68 NOTE. Use the dual input cable or a set of matched cables (for electrical length) when running the CHAN_SKEW_CAL test. If you use unmatched separate coaxial cables, the adjustment may fail or may be miscalibrated due to an electrical mismatch between the cables. 5- 4 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 69: Table 5- 2: Fault Isolation

    Refer to the following procedures to identify the initial setup for each test. Then follow the program instructions to complete the tests. 5- 5 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 70: Figure 5- 1: Initial Setup For The Base Calibration Adjustment

    Install the 0.1 F capacitor across the voltage reference output terminals to reduce noise. DSO module CH 1 Precision BNC cable Voltage reference Dual 0.1 F Capacitor banana-to-BNC adapter Figure 5- 1: Initial setup for the base calibration adjustment 5- 6 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 71 EXTERNAL_CAL module. 6. Verify that passes before disconnecting the test the EXTERNAL_CAL test equipment and performing the INTERNAL_CAL test 7. Verify that these tests pass before continuing with any other tests. 5- 7 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 72: Figure 5- 2: Initial Setup For The Frequency Response Adjustment

    Figure 5- 3. DSO module CH 1 Precision BNC cable Sine wave generator Type N-to-BNC adapter Figure 5- 2: Initial setup for the frequency response adjustment 5- 8 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 73: Figure 5- -3: Using A Power Meter To Monitor The Amplitude Of The

    NOTE. All of the tests that are listed must be run. There are no optional tests. 3. Verify no failures occur for each test. If a test continues to fail, check the Troubleshooting section on page 5- -5. 5- 9 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 74 NOTE. All of the tests that are listed must be run. There are no optional tests. 3. Verify no failures occur for each test. If a test continues to fail, check the Troubleshooting section on page 5- -5. 5- 10 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 75 2. Follow the on-screen instructions to run the test for the DSO module. 3. Verify no failures occur for each test. If a test continues to fail, check the Troubleshooting section on page 5- -5. 5- 11 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 76 2. Follow the on-screen instructions to run the test for the DSO module. 3. Verify no failures occur for each test. If a test continues to fail, check the Troubleshooting section on page 5- -5. 5- 12 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 77: Figure 5- 5: Initial Setup For The Probe Compensation Test

    2. Follow the on-screen instructions to run the test for the DSO module. 3. Verify no failures occur for each test. If a test continues to fail, check the Troubleshooting section on page 5- -5. 5- 13 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 78 After completing the adjustments, obtain a copy of the test results and verify that all tests passed. Run the Performance Verification Procedures to verify that all the parameters are within the allowable specifications. 5- 14 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 79 (ESD). CAUTION. Static discharge can damage any semiconductor component in this DSO module. 1. Minimize handling of static-sensitive circuit boards. 6- 1 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 80 This section describes how to inspect for dirt and damage, and how to clean the DSO module. Inspection and cleaning are done as preventive maintenance. Preventive maintenance, when done regularly, may prevent malfunctions and enhance reliability. 6- 2 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 81 To clean internal surfaces, use a 75% isopropyl alcohol solution as a cleaner and rinse with deionized water. Before using any other type of cleaner, consult your Tektronix Service Center or representative. Inspection — Exterior. Inspect the outside of the DSO module for damage, wear, and missing parts.

  • Page 82: Table 6- 1: External Inspection Check List

    Inspection — Interior. Remove the module cover to access the inside of the DSO module for inspection and cleaning. Inspect the internal portions of the DSO module for damage and wear using Table 6- -2 as a guide. Defects found should be repaired immediately. 6- 4 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 83: Table 6- 2: Internal Inspection Check List

    If steps 1 and 2 do not remove all the dust or dirt, the DSO module may be spray washed using a solution of 75% isopropyl alcohol (see steps 3 through 7). 3. Gain access to the parts to be cleaned by removing easily accessible shields and panels. 6- 5 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 84 6. Dry all parts with low-pressure, deionized air. 7. Dry all components and assemblies in an oven or drying compartment using low-temperature (51.7_ C to 65.6_ C/125_ F to 150_ F) circulating air. 6- 6 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 85 Board (A2) (Performance verification is required if this board is replaced) H Rear EMI Gaskets on page 6- -23 describes how to replace the EMI gaskets at the rear of the module 6- 7 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 86: Table 6- 3: Tools Required For Parts Replacement

    1. Place the DSO module on its right side. 2. Remove the two screws that secure the injector/ejector handle to the chassis. 3. Remove the injector/ejector handle from the DSO module. 6- 8 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 87: Figure 6- 1: Injector/Ejector Handle Replacement

    1. Install the ejector handle through the front panel cutout onto the mounting post. 2. Install the screws to secure the injector/ejector handle to the chassis. 3. Apply the proper replacement label. 6- 9 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 88: Figure 6- 2: Cover Removal

    3. Remove four (4) screws that secure the cover to the chassis. 4. Lift the cover from the chassis. Cover Remove screws (8) Chassis Rear panel Figure 6- 2: Cover removal 6- 10 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 89 4. While holding the module cover in place, install the four (4) screws nearest the front of the module, to secure the cover to the chassis. 5. Install four (4) screws that secure the rear panel to the chassis. 6- 11 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 90: Figure 6- 3: Seating The Cover On The Chassis

    Removal and Installation Procedures Make sure tab inserts into slot on rear of front panel Leave no vertical gap Figure 6- 3: Seating the cover on the chassis 6- 12 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 91 Performance Verification procedures as described in the TLA 700 Series Performance Verification and Adjustment Technical Reference (070- -9776- -XX). When ordering a replacement or exchange processor board from Tektronix, you must supply the following information: model number, serial number, and firmware level.

  • Page 92: Figure 6- 4: Processor Board Removal

    Performance Verification procedures as described in this manual. When ordering a replacement or exchange processor board from Tektronix, you must supply the following information: model #, serial #, and firmware level. 1. Hold the Processor Board above the chassis and install the yellow/white coaxial cable at J3.

  • Page 93: Figure 6- 5: Inserting Processor Board Tab Into Front Subpanel

    4. While holding the Processor Board in place, install the six (6) screws that secure the Processor Board to the chassis. 5. Install the two 100-pin ribbon cables at J6 and J9. 6. Perform the Cover installation procedure (see page 6- -11). 6- 15 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 94: Figure 6- 6: Bnc Replacement

    3. Using a 1/2 inch nut driver, remove the securing nut and washer from the rear of the connector. 4. Remove the BNC from the front panel. Washer Probe compensation BNC connector Figure 6- 6: BNC replacement 6- 16 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 95 1. Perform the Processor Board removal procedure (see page 6- -13). 2. Use Figure 6- -7 to locate the fuse to be replaced. 3. Using a soldering iron and solder wick, unsolder and discard the fuse. 6- 17 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 96: Figure 6- 7: Fuse Replacement

    Mechanical Parts List section for the part number of replacement fuses. 1. Using a soldering iron, solder the new fuse into place. 2. Perform the Processor Board installation procedure (see page 6- -14). 6- 18 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 97 7. Unlock socket J1163 (slide the lock tabs away from the attenuator housing). 8. Remove the probe interface from J1163. Then carefully slide the probe interface from around each BNC connector on the Acquisition Board. 6- 19 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 98: Figure 6- 8: Probe Interface Replacement

    Remove spacer posts (6) Acquisition board Plastic rings (4) Probe interface Slide the tabs to Slide tabs to unlock J1163 unlock J1163 Remove screws (3) Probe interface Figure 6- 8: Probe interface replacement 6- 20 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 99 7. Using a 1/4 inch nut driver, install six (6) spacer posts that secure the Acquisition Board to the chassis. 8. Perform the Processor Board installation procedure (see page 6- -14). 6- 21 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 100: Figure 6- 9: Acquisition Board Replacement

    Unplug the cable from the Acquisition Board. Set the cable aside. 100-pin ribbon cables Squeeze to unlock cable. RF shielding gasket Figure 6- 9: Acquisition board replacement 6- 22 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 101: Figure 6- 10: Rear Emi Gasket Removal

    (page 6- -13) and the acquisition board (page 6- -22). 3. Lift the gasket fingers and rotate the gasket off. Lift gasket finger Rotate Figure 6- 10: Rear EMI gasket removal 6- 23 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 102: Figure 6- 11: Rear Emi Gasket Replacement

    Slide open end on Rotate into place lifting any gasket finger that bind. Make sure gasket snaps into holes by pulling on gasket Figure 6- 11: Rear EMI gasket replacement 6- 24 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 103 Fault isolation is supported to the following replaceable parts: H Processor Board (A1) H Acquisition Board (A2 H Power supply fuses H Probe interface flex cable H 100 pin ribbon cables 6- 25 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 104: Table 6- 4: Failure Symptoms And Possible Causes

    (READY indi- H Module failure; see Troubleshoot the Digitizing Oscilloscope cator not green) Module on page 6- - 27, or contact local Tektronix service center H DSO module failure; see Troubleshoot the Digitizing DSO module loses set- tings when power is...
  • Page 105 Processor Board (A1) or Acquisition Board (A2) to expedite troubleshooting if you have known-good boards available. See the Mechanical Parts List section to locate the Tektronix part numbers for replacement parts. This procedure requires that the module is installed in a fully functional mainframe.
  • Page 106 NOTE. If there are no diagnostic failures when you power on the instrument, you can display and run the calibration and diagnostics property sheet by selecting Calibration and Diagnostics from the System menu. 6- 28 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 107 MPU and ACQ boards; check the interconnections. H If you replace a board that is not calibrated, an uncalibrated error can occur even though both boards are good. Calibration can fix the error. 6- 29 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 108 Pass? replace it. Perform the PV procedure the PV Replace the Acquisition procedure Board (A2). pass? DSO module is OK. Figure 6- 12: Primary troubleshooting procedure 6- 30 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 109 (Figure 6- - 16). Repair or replace resistance within probe interface. limits? Replace the Acquisition Board (A2). Figure 6- 14: Power supply troubleshooting procedure 6- 31 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 110: Table 6- 5: Power Supply Fault-Location Table

    Processor Board (A1) and Acquisition Board (A2) F5 (- - 12 V power supply) Processor Board (A1) and Acquisition Board (A2) F12 (+5 V power supply) Processor Board (A1) and Acquisition Board (A2) 6- 32 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 111: Table 6- 6: Diagnostic Tests

    Most likely cause Power on Extended Kernel Power-On Kernel MPU Static RAM Nonvolatile RAM DSP Shared RAM VXI Shared RAM Calibration Checksums MPU; ACQ Factory Calibration Status Recalibrate with CATS; ACQ 6- 33 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 112 After removing and replacing the processor board or the acquisition board, refer to the Adjustment Procedures and the Performance Verification chapters in this manual to run the adjustment procedures and the performance verification procedures 6- 34 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 113 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: H The owner’s address...
  • Page 114 Repackaging Instructions 6- 36 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 115 Cal data report Option D1 Provides a calibration (test data) report Tektronix Service Options are available at the time you order your instrument. Contact your local Tektronix Sales Office for more information. 7- 1 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 116 Options 7- 2 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 117 Replaceable Electrical Parts Refer to the Replaceable Mechanical Parts chapter for a complete listing and description of replaceable parts for the DSO module. 8- 1 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 118 Replaceable Electrical Parts 8- 2 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 119 Processor board board J1153 Probe interface CH 1 Interconnect Attenuator CH 2 CH 3 TLA7E2 and J100 TLA7D2 only CH 4 J1500 J101 Interconnect Interconnect Probe compensation Figure 9- 1: Interconnections 9- 1 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 120 Interconnect Trigger Triggers Probe Processor compensation J101 DSP Bus to acquisition system 68330 Main processor system 320C31 DSP Interface processor system 68330 Interconnect Power supplies Interconnect Figure 9- 2: Block diagram 9- 2 TLA Series Digitizing Oscilloscope Modules Service Manual...

  • Page 121: Table 10- 1: Standard Accessories

    Tektronix Logic Analyzer Family User Manual 071-0863-00 Parts Ordering Information Replacement parts are available through your local Tektronix field office or representative. Changes to Tektronix products are sometimes made to accommodate improved components as they become available and to give you the benefit of the latest improvements.
  • Page 122 670-7918-03 670-7918-XX When you order parts, Tektronix will provide you with the most current part for your product type, serial number, and modification (if applicable). At the time of your order, Tektronix will determine the part number revision level needed for your product, based on the information you provide.
  • Page 123 Items in this section are referenced by figure and index numbers to the exploded view illustrations that follow. Tektronix Part Number Use this part number when ordering replacement parts from Tektronix. 3 and 4 Serial Number Column three indicates the serial number at which the part was first effective. Column four indicates the serial number at which the part was discontinued.
  • Page 124 3000 LEWIS & CLARK HWY VANCOUVER, WA 98661 SUITE 2 TK2597 MERIX CORP 1521 POPLAR LANE FOREST GROVE, OR 97116 TK2647 INSTRUMENT SPECIALTIES CO INC. C/O TEMCO NW HILLSBORO, OR 97123 1336 SE 51ST STREET 10- 4 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 125 441- - 2097- - 00 CHASSIS ASSY:TWO WIDE BOTTOM CHASSIS,METAL2 CH 80009 441- - 2097- - 00 (TLA7D1/E1) - - 13 214- - 4762- - 00 SPRING,CONICAL 8X345 ORDER BY DESCR 10- 5 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 126 PTH,0.012- - 0.22 PIN SIZE,W/O DIMPLE,25000/REEL - - 28 174- - 3458- - 00 CA ASSY,SP:RIBBON,IDC,30AWG,0.025 CTR,3.325 L,100 TK2469 174- - 3458- - 00 POS,MINI RIBBON,0.05 CTR X 2 X 50,0.05 X 10- 6 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 127 MLG X 0.110 TAIL,4 X 25 STAGGERED PCB,2 - - 30 348- - 1365- - 01 SHLD GSKT,ELEC:SYMETRICAL SLOTTED FINGER,0.350 W TK2647 0493- - 0069- - 01 X 7.5 L,RIVIT MTG,SNAP- - IN,RIVIT SPACING 1.5 IN 10- 7 TLA Series Digitizing Oscilloscope Modules Service Manual...
  • Page 128 Replaceable Parts List Figure 10- 1: Digitizing oscilloscope exploded view 10- 8 TLA Series Digitizing Oscilloscope Modules Service Manual...

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