Page 1 Tektronix TLA7AA4 Manual Get Pricing & Availability at ApexWaves.com Call Today: 1-800-915-6216 Email: sales@apexwaves.com https://www.apexwaves.com/analyzers/tektronix-inc/tla7000/TLA7AA4...
Page 2: Service Manual
Service Manual Tektronix Logic Analyzer Module (TLA7AAx & TLA7ABx) 071-1043-00 This document applies to TLA application soft- ware version 4.2 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 3 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., P.O. Box 500, Beaverton, OR 97077...
Page 4 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. Customer shall be responsible for paying all shipping charges, duties, taxes, and any other charges for products returned to any other locations.
Page 6 ..........Contacting Tektronix .
Page 7 Table of Contents Merging Rules ..........2- - 14 Merge Procedure .
Page 8 Table of Contents Adjustment Procedures Test Equipment and Initial Setup ........5- - 1 Prerequisites .
Page 9 ............6- - 40 Options TLA7AA1, TLA7AA2, TLA7AA3 and TLA7AA4 Options ....7- - 1 TLA7AB2 and TLA7AB4 Options .
Page 10 Table of Contents List of Figures Figure 1- -1: Location of modules in merged configurations ..1- -11 Figure 2- -1: Logical address switches ......2- -2 Figure 2- -2: Installing modules in the mainframe .
Page 11 Table of Contents Figure 6- -7: Seating the cover on the chassis ....6- -15 Figure 6- -8: LPU board removal .
Page 12 Table of Contents List of Tables Table 1- -1: Input parameters (with probes) ....1- -3 Table 1- -2: Analog output .
Page 13 Table of Contents Table 7- -1: TLA7AA1, TLA7AA2, TLA7AA3 and TLA7AA4 options 7- -1 Table 7- -2: TLA7AB2 and TLA7AB4 options ....7- -2...
Page 14 General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it. To avoid potential hazards, use this product only as specified. Only qualified personnel should perform service procedures. While using this product, you may need to access other parts of the system.
Page 15 General Safety Summary Do Not Operate in Wet/Damp Conditions. 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. Symbols and Terms Terms in this Manual.
Page 16 Service Safety Summary Only qualified personnel should perform service procedures. Read this Service Safety Summary and the General Safety Summary before performing any service procedures. Do Not Service Alone. Do not perform internal service or adjustments of this product unless another person capable of rendering first aid and resuscitation is present.
Page 17 Service Safety Summary TLA7AXX Logic Analyzer Module Service Manual...
Page 18 H Operating Information includes basic installation and operating instructions at the level needed to safely operate and service the logic analyzer module. For complete installation and configuration procedures, refer to the Tektronix Logic Analyzer Family User Manual. H Theory of Operation contains circuit descriptions that support general service to the circuit board level.
Page 19 Preface Manual Conventions This manual uses certain conventions that you should be familiar with before attempting service. Acquisition Board The acquisition board is one of the circuit boards inside the logic analyzer module. The circuit board receives and stores acquisition data from the probes and works with the local processor unit (LPU) board to provide logic analysis information to the operator of the logic analyzer.
Page 20 Preface P6810 General Purpose This is a 34-channel general purpose probe used with the TLA7Axx series logic Logic Analyzer Probe analyzers. It provides support for single-ended, differential clocks, and data with no trade-off in channels. It connects to a wide variety of probing accessories including SMT KlipChips for quick connections to a variety of IC pins and connectors.
Page 21 The following manuals are available as part of the TLA700 Series Logic Analyzer documentation set. Manual name Description Service use Tektronix Logic Analyzer Family User Provides operating information on the TLA Augments operating information found in Manual Series Logic Analyzer...
Page 22 6:00 a.m. - - 5:00 p.m. Pacific time 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. xvii...
Page 23 Preface xviii TLA7AXX Logic Analyzer Module Service Manual...
Page 24 Introduction This manual contains information needed to properly service the logic analyzer module, as well as general information critical to safe servicing. To prevent personal injury or damage consider the following requirements before attempting service: H The procedures in this manual should be performed only by qualified service personnel.
Page 25 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 web site at http://www.tektronix.com/Measurement/Service. See our latest service offerings and contact us by email.
Page 26 H PowerFlex option upgrade number H Firmware level For More Information Contact your local Tektronix service center or sales engineer for more informa- tion on any of the Calibration and Repair Services just described. TLA7AXX Logic Analyzer Module Service Manual...
Page 27 Introduction xxii TLA7AXX Logic Analyzer Module Service Manual...
Page 28 Logic Analyzer Module Description The TLA7Axx series logic analyzer modules are designed as part of the Tektronix Logic Analyzer Family for use in the TLA700 series logic analyzer mainframes. The logic analyzer module is used as a test and measurement tool for high-speed digital timing and state acquisition across several channels with deep acquisition memory.
Page 29 Specifications H P6880 High Density Differential Logic Analyzer Probes. These probes also feature a connectorless system for differential signals. Refer to the P6810, P6860, P6880 Logic Analyzer Probe Instruction Manual for complete information on the P6800 series logic analyzer probes. This document also contains circuit board design information required for designing the probe interfaces for the target system.
Page 30 Specifications Table 1- 1: Input parameters (with probes) Characteristic Description n Threshold accuracy ±(35 mV + 1% of the threshold voltage setting) (Certifiable parameter) Threshold range and step size Setable from +4.5 V to - - 2.0 V in 5 mV steps Threshold channel selection 16 threshold groups assigned to channels.
Page 31 Number of channels TLA7AA4, TLA7AB4 128 data, 8 clock/qualifier TLA7AA3 96 data, 6 clock/qualifier TLA7AA2, TLA7AB2 64 data, 4 clock/qualifier TLA7AA1 32 data, 2 clock/qualifier Acquisition memory depth TLA7AAx series 32 M per channel TLA7ABx series 64 M per channel...
Page 32 Specifications Table 1- 4: Clocking (Cont.) Characteristic Description Qualifier channels Qualifier channels Product Product Qualifier channels Qualifier channels 32+2 module 64+4 module 96+6 module 128+8 module n Setup and hold window size P6860 high density probe = 750 ps (data and qualifiers) Setup and hold window size P6860 high density probe = 625 ps (data and qualifiers) (Typical)
Page 33 A2(7:0) to/from D2(7:0) A1(7:0) to/from D1(7:0) A0(7:0) to/from D0(7:0) TLA7AA1, TLA7AA2, TLA7AB2 modules Any individual channel can be demultiplexed with its partner channel. If multiplexing is enabled, all of the A and D channels are multiplexed; there is no individual selection.
Page 34 Specifications Table 1- 4: Clocking (Cont.) Characteristic Description Source synchronous clock reset The Clock Group Valid FIFO can be reset in one of the two ways: 1. By the overflow of a presettable (1- - 255) 8-bit counter that counts one of the following clocks: 2 ns Clock or the master “heartbeat”...
Page 35 Specifications Table 1- 5: TLA7Axx module trigger system Characteristic Description Trigger resources Word recognizers and range recognizers 16, word recognizers can be combined to form full width, double bounded range recognizers. The following selections are available: 16 word recognizers 0 range recognizers 13 word recognizers 1 range recognizer 10 word recognizers...
Page 36 Specifications Table 1- 5: TLA7Axx module trigger system (Cont.) Characteristic Description Signal In 2 A backplane input signal. Trigger In A backplane input signal that causes the main acquisition and the MagniVu acquisition to trigger if they are not already triggered. Active trigger resources 16 maximum (excluding counter/timers) Word recognizers are traded off one-for-one as Signal In 1, Signal In 2, glitch...
Page 37 Specifications Table 1- 5: TLA7Axx module trigger system (Cont.) Characteristic Description Glitch violation storage Glitch violation information can be stored to acquisition memory with each data sample when asynchronous clocking is used. The acquisition data storage size is reduced by half when this mode is enabled (the other half holds violation information). The fastest asynchronous clock rate is reduced to 4 ns.
Page 38 Specifications Table 1- 7: Merged modules Characteristic Description Number of merged modules 2, 3, 4, or 5 adjacent modules can be merged. Only 102-channel modules or 136-channel modules can be merged. Merged modules can have unequal channel widths and channel depths. See Figure 1- - 1 for location of modules in a merged configuration.
Page 39 Specifications Table 1- 8: Data handling Characteristic Description Nonvolatile memory retention time (Typical) The battery life is integral to the NVRAM; battery life is > 10 years. Table 1- 9: Environmental Characteristic Description Temperature 5 _C to +40 _C/hour maximum gradient, non-condensing Operating The maximum operating temperature is derated at altitudes above 305 m (1000 ft.) by 1 _C per 305 m (1000 ft.) above 1525 m (5000 ft.) altitude...
Page 40 Specifications Table 1- 10: Mechanical Characteristic Description Material Chassis parts are constructed of aluminum alloy. The front panel is constructed of plastic laminated to steel front panel. Circuit boards are constructed of glass laminate. Weight 136-channel module 2.438 kg (5 lb 6 oz.) 102-channel module 2.381 kg (5 lb 4 oz.) 68-channel module...
Page 41 Fuse ratings 100 V to 120 V operation 5.0 mm x 20 mm, 1.0 A FAST 250 V; Tektronix part number 159-0356-00 200 V to 240 V operation 5.0 mm x 20 mm, 0.5 A FAST 250 V; Tektronix part number 159-0351-00 Internal power supply 5.0 mm x 20 mm, 3.15 A, 250 V...
Page 42 Specifications Table 1- 12: TLACAL2 Performance verification and adjustment fixture characteristics (Cont.) Characteristic Description Secondary power supply output voltages +15 V +10%, - - 3% ¦5% - - 15 V ¦10% +12 V ¦2% +5 V ¦100 mV +3 V ¦100 mV - - 3 V ¦100 mV...
Page 43 Specifications Table 1- 13: TLACAL2 Performance verification and adjustment fixture certifications and compliances Category Standards or description EC Declaration of Conformity - - Compliance was demonstrated to the following specification as listed in the Official Journal of the Low Voltage European Communities: Low Voltage Directive 73/23/EEC, amended by 93/68/EEC EN 61010-1/A2:1995...
Page 44 The operating information is limited to the functions you need to perform the procedures found in this document. You can find detailed operating instructions in the Tektronix Logic Analyzer Family User Manual and in the online help.
Page 45 Operating Information Least-significant digit Most-significant digit Figure 2- 1: Logical address switches Merged Modules You can combine up to five logic analyzer modules to create a single module that operates off a single time base. This process is called merging modules. The procedures for merging modules is described under Merged Modules beginning on page 2- -14.
Page 46 Operating Information For more detailed information on installing modules, refer to Appendix D: TLA700 Module Installation in the Tektronix Logic Analyzer Family User Manual. Portable mainframe Benchtop mainframe Retaining screws Injector/ejector handles Figure 2- 2: Installing modules in the mainframe...
Page 47 Operating Information CAUTION. Static discharge can damage the TLACAL2 fixture and its associated circuit boards. Make sure that you install the fixture in a static-free environment. Always wear a grounded wrist strap while handling the TLACAL2 fixture and its associated equipment. For more information on antistatic procedures, see Preventing Electrostatic Discharge on page 6- -1.
Page 48 Operating Information NOTE. The MIC boards and the PIC board look very similar. The MIC boards have two coaxial cable connections while the PIC board has only one (see Figure 2- -3). To quickly identify the MIC and PIC boards, you may want to attach a small label on the plastic housing of the MIC connector with the name of the MIC and PIC connectors (such as MIC0).
Page 49 Operating Information 10. Connect the power cord to the performance verification fixture. 11. Leave the four P6041 cables and the PIC board disconnected. You will connect these to the performance verification fixture and logic analyzer module during the actual procedures. Figure 2- -4 shows the TLACAL2 fixture with the major components connected to the logic analyzer.
Page 50: Software Installation
TLA application software. The TLA application software Version version is printed on disc 1 of the Tektronix Logic Family Analyzer application software CD. If the version of the performance verification software on the hard disk does not match the CD label or the TLA application software, you must delete the older version before you can install the newer version.
Page 51 Operating Information Removing the Software Use the following steps to remove the performance verification software from the hard disk in the mainframe. These steps are necessary when you want to upgrade the performance verification software. 1. On the desktop, select Start → Settings→ Control Panel 2.
Page 52 Operating Information Injector/ejector handle READY Indicator ACCESSED Indicator ARM’D Indicator TRIG’D Indicator Probe retainer mounting holes Probe connectors Analog signal outputs Configuration label Figure 2- 5: Front panel of the logic analyzer module Probe Connectors. The probe connectors are color-coded to match the labels on the probes.
Page 53 Operating Information Analog Outputs. Each module has four analog output BNC connectors regardless of the number of acquisition channels. The analog output connectors allow you to tap into the analog signal of any channel and connect the signals to an external instrument, such as an oscilloscope.
Page 54 Operating Information Rear Panel Figure 2- -7 shows the connectors and controls on the rear panel of the logic analyzer module. Logical address P1 Connector P2 Connector switches Figure 2- 7: Rear panel controls and connectors P1 and P2 Connectors. The acquisition board and the local processor unit (LPU) provide the electrical connections from the module to the mainframe.
Page 55 Operating Information Self Calibration Self calibration is an internal routine that optimizes performance. No external equipment or user actions are required to complete the procedure. The logic analyzer saves the data generated by the self calibration in non-volatile memory. NOTE. Performing the self calibration does not guarantee that all logic analyzer module parameters operate within limits.
Page 56 Click the appropriate button to enable or disable the modules. Refer to the online help for more information on the individual menus, icons, and fields within each window. You may also want to refer to the Tektronix Logic Analyzer Family User Manual for additional information.
Page 57 Operating Information Merged Modules The logic analyzer allows you to merge individual 102-channel or 136-channel module modules to provide a logic analyzer module with up to 680 channels. The following procedures provide information for merging and unmerging logic analyzer modules. Merging Rules Before merging modules to create a merged module set, review the following guidelines.
Page 58 Operating Information Merge Procedure Complete the following steps to create a merged module from two or more individual modules. You must complete these steps prior to installing the modules in a mainframe. CAUTION. To avoid damaging the mainframe or any modules, always power down the mainframe before removing or installing modules.
Page 59 Operating Information Remove two screws Standoff posts Figure 2- 9: Removing the merge connector assembly from the module NOTE. When installing the merged modules into a mainframe, you may need the help of another individual. 7. Place the first pair of modules to be merged side-by-side such that the merge connector assemblies line up and connect between the two modules.
Page 60 Operating Information Figure 2- 10: Connecting the logic analyzer modules together CAUTION. Ensure that the mainframe is powered down before installing or removing the modules. 10. Place the merged module set into the mainframe. 11. Align the tops and bottoms of the modules with the slots in the mainframe (see Figure 2- -11 on page 2- -18).
Page 61 Operating Information Align Align Slide module set all the way in Latch in place Figure 2- 11: Installing the merged module set in the mainframe 12. Slide the modules all the way into the mainframe until they rest against the rear panel connectors.
Page 62 Operating Information 13. Use the injector handles to firmly seat the modules in place one at a time and then tighten the hold-down screws on each module. The merge cable assembly should allow enough play between two side-by-side modules. 14. After installing all of the modules, power on the mainframe and complete the merge process listed under the Merged Modules tab in the System Configu- ration dialog box.
Page 63 Operating Information 2- 20 TLA7AXX Logic Analyzer Module Service Manual...
Page 64: Theory Of Operation
Theory of Operation This chapter describes the general operation of the logic analyzer module. This information is intended to help you isolate faults to the circuit board or probe level. It supplements diagnostic and troubleshooting information presented in the Troubleshooting section beginning on page 6- -25. The following Block Level Description describes circuit operation to the functional block level.
Page 65 Theory of Operation The processor system includes the instrument firmware. To facilitate upgrades, the firmware resides in Flash ROM. The processor system also includes the nonvolatile RAM (NVRAM) used for the calibration constants, module serial numbers, and PowerFlex configuration information. Communications Interface The Communications Interface transfers commands and data between the mainframe and the mainframe controller.
Page 66 Theory of Operation Trigger and Storage Clocking and triggering is controlled by a single ASIC. This ASIC determines Control Circuitry when acquisition data should be sampled based on the clock information and qualifier information. The ASIC also contains 16 Event resources for the purposes of word recognition, range recognition, and other trigger functions.
Page 67 Theory of Operation Probes The logic analyzer module connects to the target system through 34-channel probes (32 data channels and two clock/qualifier channels). Depending on the number of channels in the logic analyzer module, you can connect up to four logic analyzer probes to the module.
Page 68 NOTE. This chapter does not contain any procedures for verifying, adjusting, or certifying the TLACAL2 Performance Verification fixture. Please contact your local Tektronix service center for information on servicing the fixture. Summary Verification Functional verification procedures verify the basic functionality of the instru- ment inputs, outputs, and basic instrument actions.
Page 69 (30 minutes). Gather required test Load PV/Adjust equipment. software. Is it OK Perform procedure with customer to using software. Tektronix-supplied remove/reconnect probes probes. from System Under Test? Repair or adjust Do tests equipment as pass? required.
Page 70 Agilent 34401A, 6.5 digit display, 35 ppm, 1 No substitute allowed year accuracy, 1000 readings per minute, 100 nV sensitivity, GPIB controllable 6. Oscilloscope Tektronix TDS694C Four channels, 3 GHz, No substitute allowed 10GS/s 7. USB-GPIB controller: National Instruments 778195-01 Tektronix iView cable Windows 2000 compatible with 2 m cable.
Page 71 1. Allow the logic analyzer and all test equipment to warm up for at least 30 minutes. 2. Exit the logic analyzer application. 3. Select Start → Programs → Tektronix Logic Analyzer → TLA7AxxPVAd- just (or double-click on the TLA7AxxPVAdjust icon on the desktop). An application window similar to Figure 4- -2 appears.
Page 72 Performance Verification Figure 4- 2: Performance verification software startup window Software Overview After selecting the type of test that you want to run, a new dialog box appears. The dialog box contains the following information: H Name, slot location, and serial number of the module to be tested H Probe selection box H A list of procedures organized by groups The individual procedures are organized by groups that require the same test...
Page 73 8. Run the adjustment procedures for the module in question. 9. Run the tests a second time to verify the failure. 10. If all else fails, contact your local Tektronix service center for additional information. 4- 6 TLA7AXX Logic Analyzer Module Service Manual...
Page 74 Performance Verification Functional Verification This section contains instructions for performing the functional verification procedures for the logic analyzer modules. These procedures provide an easy way to check the basic functionality of the logic analyzer modules and probes. The TLACAL2 test fixture or software is not required for any of the functional verification checks.
Page 75 Performance Verification Module Self Tests and During power-on, the installed modules perform an internal self test to verify Power-On Diagnostics basic functionality. No external test equipment is required. The self tests require only a few seconds per module to complete. The front-panel ARM’D and TRIG’D indicators blink during the self test.
Page 76 Performance Verification 4. Select the top level test and click the Run button. The diagnostics will perform each one of the tests listed in the menu under the module selection. All tests that displayed an Unknown status will change to a Pass or Fail status depending on the outcome of the tests. 5.
Page 77 Performance Verification Performance Verification Instructions This section contains information to verify the performance of the logic analyzer module. Testing is performed using the performance verification software and the performance verification fixture. As a general rule, these tests should be done once a year. Prerequisites The performance verification procedures in this section comprise an extensive, valid confirmation of performance and functionality when the following...
Page 78 Performance Verification Procedure Overview When using the performance verification software, you will connect external test equipment and probes to the logic analyzer module in response to prompts on the screen. The software automatically selects the module settings and determines the results of each test. The results of the tests are recorded in a temporary file and are available upon test completion for completing test records.
Page 79 Performance Verification Performance Verification Procedures Table 4- -3 provides a summary of the performance verification procedures. The procedures are listed by groups and include individual procedures. Some of these procedures are optional and are recommended for performing a thorough performance verification. Others are the minimum required to verify the advertised specifications of the logic analyzer module.
Page 80 Performance Verification Use the tables and illustrations to set up and execute the procedures. The procedures assume that you have already installed the performance verification software on the logic analyzer mainframe. The procedures also assume that you will only perform the procedures selected in each group. The procedures will vary depending on the type of probes that you have connected to the logic analyzer module and on the number of channels on your logic analyzer module.
Page 81 Performance Verification Figure 4- 3: TLACAL2 test fixture connections 4- 14 TLA7AXX Logic Analyzer Module Service Manual...
Page 82 Performance Verification Probe+PIC Procedure This procedure verifies probe gain and offset circuitry in the individual probes. This procedure is not dependent on any previous procedures. Use this procedure to verify the functionality of the probes. The procedure is optional and is not required to verify any module specifications.
Page 83 Performance Verification b. Connect the clock/qualifier leads to the SNGL square pins at J220. Make sure that you connect the ground side or the “- -” side to the square pins with the GND label. 8. If you are testing a P6860 probe, connect the probe heads to the P6860/80 GAIN &...
Page 84 Performance Verification Figure 4- 4: Default Verification dialog box 7. Verify that your connections match those of the instructions. Then click the Next button to begin the procedure. The software will begin the verification procedures and display a list of test results in the window.
Page 85 Performance Verification 12. After completing the last probe, you can exit the application or return to the main window to perform other procedures. CAUTION. Power down the test fixture before disconnecting the PIC from the test fixture. Failure to do so can damage the test fixture or the PIC. Module+MIC Procedures These procedures verify the input resistance, the digital gain and offset, and the analog gain and offset parameters of the logic analyzer probe input sections.
Page 86 Performance Verification 6. Connect any one of the coaxial cables from the TV (test voltage) connectors on the test fixture to the TV connector on the MIC. 7. Connect the multimeter leads to the DMM test points (J390) on the test fixture.
Page 87 Performance Verification 8. After the procedure finishes, click the Next button to open the Finish dialog box where you can save the results to a file. Enter a file name and click the Save button. You can use the Save dialog to save the file to a folder of your choice or use the default location.
Page 88 Performance Verification 3. Connect a logic analyzer probe from the logic analyzer C0/C1/C2/C3 input connector (or the C3/C2/A3/A2 connector for 34- or 68-channel modules) to the appropriate connectors on the test fixture as described in the following steps. 4. If you are using a P6810 probe: a.
Page 89 Performance Verification NOTE. The software will perform all selected procedures in the listed sequence. To limit the test to specific procedures, clear any procedures that you do not want to run. If you want to run all of the selected procedures, you will need to play close attention to the connection instructions as they appear on the screen.
Page 90 Performance Verification Module+Probe Timing These procedure verify the minimum pulse width specification, the accuracy of Procedures the time base, and the analog output path. NOTE. The Analog Output to Oscilloscope procedure is an optional procedure. You can only perform this procedure if you have a TDS694C oscilloscope connected to the analog outputs of the logic analyzer module;...
Page 91 Performance Verification Table 4- 4: Module+Probe Timing procedure probe connections Probe TLACAL2 test fixture connections P6810 P6810 TIMING (J881, J882, J883, J884 data connectors J880 Deskew Ref connector) P6860 P6860 DESKEW AND MIN PULSE (J610, J611 data connectors J612 deskew ref connector) P6880 P6880 TIMING (J581, J582, J583, J584 data connectors,...
Page 92 Performance Verification Figure 4- 5: Module+Probe timing procedure probe connections 6. Verify that Pulse Width and Timebase are selected under Module+Probe Timing Procedures. 7. If you want to perform the analog output procedure, select the Analog Output to Oscilloscope (it is not checked). 8.
Page 93 Performance Verification NOTE. The software will perform all selected procedures without interruption. To limit the test to specific procedures, clear any procedures that you do not want to run. If you want to run all of the selected procedures, you will need to play close attention to the connection instructions as they are displayed on the screen.
Page 94 Performance Verification 15. After the procedure finishes, click the Next button to open the Finish dialog box where you can save the results to a file. Enter a file name and click the Save button. You can use the Save dialog to save the file to a folder of your choice or use the default location.
Page 95 Performance Verification Figure 4- 6: P6860 Setup & Hold procedure connections 5. Power on the test fixture, logic analyzer, and oscilloscope and allow all test equipment to warm up for 30 minutes before continuing the procedure. 4- 28 TLA7AXX Logic Analyzer Module Service Manual...
Page 96 Performance Verification Start the Software. Complete the following steps to start the software and to run the procedures: 1. Exit the TLA application on the logic analyzer. 2. Double-click the TLA7Axx Performance Verification icon on the desktop. An application window similar to Figure 4- -2 on page 4- -5 appears. 3.
Page 97 Performance Verification 12. After the procedure finishes, click the Next button to open the Finish dialog box where you can save the results to a file. Enter a file name and click the Save button. You can use the Save dialog to save the file to a folder of your choice or use the default location.
Page 98 Performance Verification CAUTION. If you have any P6041cables connected from the logic analyzer to the TLACAL2 test fixture, always disconnect one end of each P6041 cable before powering down the test fixture. Always power down the test fixture before connecting or disconnecting ribbon cables.
Page 99 Performance Verification Start the Software Complete the following steps to start the software and to run the procedures: 1. Exit the TLA application on the logic analyzer. 2. Double-click the TLA7Axx Performance Verification icon on the desktop. An application window similar to Figure 4- -2 on page 4- -5 appears. 3.
Page 100 Performance Verification Figure 4- 7: Default Certification procedure dialog box 8. After the first set of procedures are done, click the Next button to display the instructions for the next step. In most cases you only need to connect a different probe to the test fixture.
Page 101 Performance Verification CAUTION. Always disconnect one end of each P6041 cable before powering down the TLACAL2 test fixture. Failure to do so can damage the test fixture. 14. Disconnect one end of each P6041 cable before powering down the TLACAL2 test fixture. 15.
Page 102 NOTE. There are no adjustment procedures for the TLACAL2 Performance Verification test fixture in this section. If the test fixture requires any adjustments, you must return the test fixture to the factory; contact your local Tektronix service center for more information.
Page 103 Refer to Software Installation on page 2- -7 for more information. H The logic analyzer module must be installed in a Tektronix logic analyzer mainframe. H The logic analyzer, TLACAL2 fixture, and all other test equipment require a 30-minute warm-up time in a +20 _C to +30 _C environment before performing any adjustments.
Page 104 Adjustment Procedures Adjustment After Repair You must perform all adjustment procedures following replacement of any circuit board in the logic analyzer module. This section describes how to perform adjustments using the software. Tests Performed Table 5- -1 lists the adjustment procedures available for the logic analyzer module and for the related probes.
Page 105 Adjustment Procedures Figure 5- 1: TLACAL2 test fixture connections 5- 4 TLA7AXX Logic Analyzer Module Service Manual...
Page 106 Adjustment Procedures Self Calibration Self calibration is an internal routine that optimizes performance at the current ambient temperature to maximize measurement accuracy. No external equipment or user actions are needed to complete the procedure. The logic analyzer module saves data generated by the self calibration in nonvolatile memory. Passing self cal provides a higher level of confidence of module functionality.
Page 107 Adjustment Procedures Probe+PIC Procedures The Probe+PIC Procedures consist of the Probe Gain and Offset procedures for the P6810, P6860, and P6880 logic analyzer probes. These procedures are optional and are not required to adjust the logic analyzer module. The probes are adjusted at the factory before shipment and should not require readjustment.
Page 108 Adjustment Procedures b. Connect the clock/qualifier leads to the SNGL square pins at J220. Make sure that you connect the ground side or the “- -” side to the square pins with the GND label. There is no need to connect the single ground wire. 8.
Page 109 Adjustment Procedures Figure 5- 3: Default Adjustment procedure dialog box 4. Select the probe type near the bottom of the dialog box. 5. Select the Probe Gain & Offset procedure (the default selection is not selected); clear any other procedures. NOTE.
Page 110 Adjustment Procedures 8. After the procedure finishes, click the Next button to open the Finish dialog box where you can save the results to a file. Enter a file name and click the Save button. You can use the Save dialog to save the file to a folder of your choice or use the default location.
Page 111 Adjustment Procedures 1. Power down the TLACAL2 test fixture before connecting the ribbon cables and the MICs. CAUTION. To avoid damaging the test fixture and the PIC through static discharge, always wear a grounded antistatic wrist strap. Avoid handling individual components of the test fixture without static protection. 2.
Page 112 Adjustment Procedures NOTE. The software will perform all selected procedures in the listed sequence. To limit the test to specific procedures, clear any procedures that you do not want to run. If you leave the Deskew procedure selected, you will be prompted to move the probe connections before you continue the procedure.
Page 113 Adjustment Procedures Module+Probe Timing Procedures The Module+Probe Timing procedures consist of the deskew adjustments. These procedures are required to adjust the logic analyzer module. These procedures use the logic analyzer probes connected to the Deskew and Minimum Pulse connections on the TLACAL2 test fixture. Depending on the type of probe that you are using and on the number of channels of your logic analyzer module, the test connections differ.
Page 114 Adjustment Procedures NOTE. Make sure that the alignment pin on the P6860 or P6880 probe head is aligned with the hole on the test fixture. Tighten the probe head screws by alternating between them until they are finger tight (no more than 1 in-lbs of torque).
Page 115 Adjustment Procedures NOTE. The software will perform all selected procedures in the listed sequence. To limit the test to specific procedures, clear any procedures that you do not want to run. Figure 5- 4: Deskew procedure probe connections 5- 14 TLA7AXX Logic Analyzer Module Service Manual...
Page 116 Adjustment Procedures 6. Click the Next button at the bottom of the dialog box to begin the adjustment procedure. A list of connection instructions displays for the current procedure. 7. Verify that your connections match those of the instructions. If you are using P6860 or P6880 probes, make sure that the alignment pin on the P6860 or P6880 probe head aligns with the hole in the test fixture.
Page 117 Adjustment Procedures 17. Click the Finish button to finish the procedure and return to the startup window. Merged Deskew Procedures The Merged Deskew procedures adjusts the deskew between modules in a merged module set. These procedures use the logic analyzer probes connected to the Deskew and Minimum Pulse connections on the TLACAL2 test fixture.
Page 118 Adjustment Procedures 4. Power on the test fixture and allow it to warm up for 30 minutes before continuing the the adjustment procedures. Table 5- 3: Merged Deskew procedure probe connections Probe TLACAL2 connections P6810 P6810 TIMING (J881, J882, J883, J884 data connectors J880 Deskew Ref connector) P6860 P6860 DESKEW AND MIN PULSE...
Page 119 Performance Verification Procedures to verify that the all parameters are within the allowable specifications. If any of the adjustment and performance verifica- tion procedures fail, further service may be necessary. Contact your local Tektronix service center for recommended action. 5- 18 TLA7AXX Logic Analyzer Module Service Manual...
Page 120 Maintenance This chapter contains the information needed for periodic and corrective maintenance of the Logic Analyzer Modules. The following sections are included. H This Maintenance section provides general information on preventing damage to internal circuit boards when doing maintenance, procedures for inspecting the logic analyzer module, and cleaning external and internal circuit boards.
Page 121: Inspection And Cleaning
Use a 75% isopropyl alcohol solution to clean internal surfaces and rinse with deionized water. Before using any other type of cleaner, consult your Tektronix Service Center or representative. 6- 2...
Page 122 Maintenance Exterior Inspection Inspect the outside of the instrument for damage, wear, and missing parts. Use Table 6- -1 as a guide. Instruments that appear to have been dropped or otherwise abused should be checked thoroughly to verify correct operation and perform- ance.
Page 123 Maintenance Interior Inspection Inspect the internal portions of the logic analyzer module for damage and wear using Table 6- -2 as a guide. When found, defects should be repaired immediately. If you must replace an internal component, refer to the Removal and Installation Procedures, later in this chapter, for detailed removal and replacement instruc- tions.
Page 124 Maintenance NOTE. If, after performing steps 1 and 2, a module is clean upon inspection, skip the remaining steps. If steps 1 and 2 do not remove all the dust or dirt, the module may be spray washed using a solution of 75% isopropyl alcohol (see steps 3 through 7).
Page 125 Maintenance Cleaning the P6860 and P6880 Compression Footprints CAUTION. To avoid electrical damage, always turn off the power of your target system before cleaning the compression footprint. Prior to connecting the probe to the target system, the compression footprints on the target system must be properly cleaned.
Page 126 Maintenance Elastomer holder Print pads Figure 6- 1: Cleaning the probe heads 3. Gently wipe the edge print pads of the hybrid. 4. Remove any remaining lint using a nitrogen air gun. 5. Put the elastomer holder back in place. CAUTION.
Page 127 Maintenance Safely store the probe head Nutbar Nutbar Figure 6- 2: Storing the probe head 6- 8 TLA7AXX Logic Analyzer Module Service Manual...
Page 128: Tools Required
Removal and Installation Procedures This section describes how to remove and install the major mechanical and electrical modules. The procedures in this section assume that you already have removed the module from the mainframe. WARNING. Before doing any procedures in this manual, read the General Safety Summary and Service Safety Summary found at the beginning of this manual.
Page 129 Removal and Installation Procedures Injector/Ejector Handles You will need a screwdriver with a T-10 tip to complete the following proce- dures. Removal Use the following procedure to remove the injector/ejector handles: 1. Place the module on the right side (see Figure 6- -3). 2.
Page 130 Removal and Installation Procedures Installation Use the following procedure and Figure 6- -3 to install the injector/ejector handles: NOTE. The top and bottom injector/ejector handles are not interchangeable. The top injector/ejector handle assembly has a notch on right side and a tab on the left side;...
Page 131 Removal and Installation Procedures Screws (8) Cable bracket Disconnect merge cable from the board Figure 6- 4: Removing the merge cable bracket from the cover 6- 12 TLA7AXX Logic Analyzer Module Service Manual...
Page 132 Removal and Installation Procedures Cover Screws (3) Chassis Screws (3) Screws (2) Rear panel Figure 6- 5: Cover removal Installation Use the following procedure and Figures 6- -4 through Figure 6- -7 to install the covers: NOTE. Install the cover tightly against the chassis. This will ensure that the module fits into adjacent slots in the mainframe.
Page 133 Removal and Installation Procedures Figure 6- 6: Installing the cover onto the chassis 3. Make sure that the cover is fully seated (no gaps) against the front and rear chassis flanges (see Figure 6- -7). 4. While holding the cover in place, install the four T-10 Torx-drive screws nearest the front of the module (two on each side of the cover), to secure the cover to the chassis.
Page 134 Removal and Installation Procedures 10. Check and tighten all screws to 4 in lbs. Make sure tab inserts into slot on rear of front panel Leave no vertical gap Figure 6- 7: Seating the cover on the chassis 6- 15 TLA7AXX Logic Analyzer Module Service Manual...
Page 135 You will need a screwdriver with a T-10 tip to complete the following proce- dures. NOTE. When placing an order for a replacement LPU board or an LPU exchange board from the Tektronix Exchange Center, you must supply the model number, serial number, PowerFlex Option upgrade number and firmware level. Removal Use the following procedure and Figure 6- -8 to remove the LPU board: 1.
Page 136 Removal and Installation Procedures LPU Board Screws (5) Tabs 160- - pin connecter Figure 6- 8: LPU board removal Installation Use the following procedure and Figure 6- -8 and Figure 6- -9 to install the LPU board: 1. Place the LPU board (component side down) over the chassis and insert the tabs on the LPU board into the front subpanel as shown in Figure 6- -9.
Page 137 System Properties tab in the TLA application. If the PowerFlex level does not match the information on the side panel label, you must return the entire logic analyzer module to your local Tektronix service center. Tabs on...
Page 138 Removal and Installation Procedures Acquisition Board You will need a inch nut driver in addition to the T-10 Torx tip screwdriver to complete the following procedures. Removal Use the following procedure and Figure 6- -12 to remove the acquisition board: 1.
Page 139 Removal and Installation Procedures slide merge cable bracket back Lift merge cable bracket up and slide out Disconnect cable from acquisition board Figure 6- 11: Removing the merge cable assembly 6- 20 TLA7AXX Logic Analyzer Module Service Manual...
Page 140 Removal and Installation Procedures 4. Turn the chassis over and then remove the five spacer posts with the driver from the acquisition board. 5. Disconnect the four analog output cables on the acquisition board. 6. Remove the five T-10 screws from the acquisition board located near the front of the chassis.
Page 141 Removal and Installation Procedures 7. Carefully slide the acquisition board away from the front panel until the probe connectors clear the front panel. Then lift the circuit board out of the chassis. Installation Use the following procedure to install the acquisition board: 1.
Page 142 Most of the fuses are surface mounted and attempting to change the fuses with improper tools will result in damaging the circuit boards beyond repair. You should return the circuit board to you local Tektronix service center for corrective action.
Page 143 Removal and Installation Procedures Installation Use the following procedure and Figure 6- -14 to install the EMI gaskets: 1. Position each gasket so the gasket fingers face the outside of the module. CAUTION. To avoid breaking the gasket fingers, do not lift the fingers too high. 2.
Page 144: Troubleshooting
Troubleshooting WARNING. Before performing this or any other procedure in this manual, read the General Safety Summary and Service Safety Summary found at the beginning of this manual. Also, to prevent possible injury or damage to electrical components, read Preventing Electrostatic Discharge on page 6- -1. This section contains information and procedures designed to help isolate faults to within the logic analyzer module.
Page 145 TLA721 Benchtop Mainframe & TLA7XM as problem source (whichever configuration is Expansion Mainframe Service Manual in use) Tektronix Logic Analyzer Family User Manual To remove and reinstall modules in mainframe TLA7UP Mainframe Field Upgrade Instruction To reinstall Windows 2000, the TLA applica-...
Page 146 H Mainframe controller is not installed properly (or not at all) H Non-system disk or floppy in external drive; make sure logic Mainframe does not boot analyzer boots from hard drive (Refer to the Tektronix Logic Analyzer Family User Manual for software reinstallation procedures) H Hard drive failure or corrupted files on hard drive;...
Page 147 Troubleshooting Eliminate Other Problem Sources The logic analyzer module is part of the Tektronix Logic Analyzer Family, which consists of modules installed in either a benchtop or portable mainframe. The following procedures will help you eliminate the mainframe and other modules as possible sources of failures.
Page 148 Troubleshooting 2. Move the suspected probe to another probe connector and observe if the problem follows the probe. If the problem does not follow the probe, the module may be faulty. 3. Substitute the suspected probe with a known good probe and observe if the problem is still present.
Page 149 Troubleshooting Power-On Diagnostics. Power-on diagnostics check basic functionality of the logic analyzer at every power on. If any failures occur at power on, the screen displays the calibration and diagnostics property sheet. If there are no diagnostic failures when you power on the logic analyzer, you can display and run the calibration and diagnostics property sheet by selecting Calibration and Diagnostics from the System menu.
Page 150 Troubleshooting Fault Isolation Procedure The Primary Troubleshooting Tree (Figure 6- -15 on page 6- -32) provides troubleshooting steps that test the logic analyzer module. Use the following procedure with that tree: To determine if module is recognized, perform the following steps: 1.
Page 151 Troubleshooting 6. Use the Removal and Installation Procedures that begin on page 6- -9 to replace the faulty circuit board. 7. Refer to Table 6- -6 on page 6- -35 after module replacement and perform all verification and adjustment procedures identified for the replaced module. Primary Troubleshooting Start TLA application Chart...
Page 152 Troubleshooting Diagnostics Table Table 6- -5 can help you isolate problems to one of the circuit boards in the module (use the Removal and Installation Procedures beginning on page 6- -9 to replace the faulty circuit board): Table 6- 5: Diagnostic tests Circuit board Group &...
Page 153 Troubleshooting Table 6- 5: Diagnostic tests (Cont.) Circuit board Group & test Power on Extended Acquisition board Miscellaneous Tests Acquisition Address Decode Threshold At-speed Async Acquire Pseudo Random SFDL-1 SFDL-2 Demux Edge Detector Setup and Hold Glitch Memory Interface Controller AD Bus MAR Rollover Waveform 0...
Page 154 Self Calibration, Power-on and Deskew, Threshold tests Extended Diagnostics, perfor- mance verification procedures The PowerFlex restoration or changes can only be made by Tektronix service personnel. Refer to the TLA7UP Mainframe Field Upgrade Instruction Manual for instructions for updating module firmware.
Page 155 Troubleshooting 4. Click Start → Programs → Tektronix Logic Analyzer → TLA Firmware Loader. 5. When you see the pop-up prompting you to cycle the power on the main- frame after completing the upgrade operation, click Yes. The logic analyzer will scan the mainframe to determine which modules are installed and which modules can have their firmware upgraded.
Page 156 Troubleshooting 15. After the logic analyzer completes the power-on diagnostics, select System Properties from the System menu. 16. Click the module tab (for example, LA1). 17. Verify that the firmware version for the selected module matches the version on the label that you recorded in step 13. 18.
Page 157 Troubleshooting 6- 38 TLA7AXX Logic Analyzer Module Service Manual...
Page 158 NOTE. When ordering the LPU board for exchange or repair, you will need to supply the above information, including the firmware level and PowerFlex configuration information. Mark the address of the Tektronix Service Center and the return address on the shipping carton in two prominent locations. 6- 39...
Page 159 Repackaging Instructions CAUTION. When returning the LPU board separately, be sure to properly support the narrow LED arm of the circuit board so it will not be damaged during transit or storage. Storage The logic analyzer module should be stored in a clean, dry environment. The following environmental characteristics apply for both shipping and storage: H Temperature range: - -40 °F to +160 °F (- -40 °C to +71 °C).
Page 160 TLA7AA1, TLA7AA2, TLA7AA3 and TLA7AA4 Options Table 7- -1 lists the options for the TLA7AA1, TLA7AA2, TLA7AA3 and TLA7AA4 modules. The number of probes per option depend on the number of channels in the logic analyzer module.
Page 161 Increase to 64 Mb memory depth @ 235 MHz state speed Increase to 64 Mb memory depth @ 450 MHz state speed Service Options Tektronix Service Options are available at the time you order your instrument. Contact your local Tektronix Sales Office for more information. Product installation service...
Page 162 Electrical Parts List Refer to the Mechanical Parts List chapter for a complete list of replaceable parts. 8- 1 TLA7AXX Logic Analyzer Module Service Manual...
Page 163 Electrical Parts List 8- 2 TLA7AXX Logic Analyzer Module Service Manual...
Page 164 Diagrams This chapter contains the block diagrams of the logic analzyer module. Use these diagrams in conjunction with the Theory of Operation to help you troubleshoot the module. 9- 1 TLA7AXX Logic Analyzer Module Service Manual...
Page 165 Diagrams Acquisition Board Probe Probe Board Acquisition Probe Interface Probe Interface Probe Interface Interface system Probe Probe Acquisition Memory Analog Analog Mux Outputs Interface Backplane Interface Trigger Clocks Merge Local Processor Unit Board Communications Interface Processor system Power supplies Acquisition Board Interface Figure 9- 1: Logic analyzer block diagram...
Page 166 For more information about the module exchange program, call 1-800-833-9200. Outside North America, contact a Tektronix sales office or distributor; see the Tektronix web site for a list of offices: www.tektronix.com. Module Repair and Return. You may ship your module to us for repair, after which we will return it to you.
Page 167 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 168 PO BOX 14460 7X318 KASO PLASTICS INC 5720- - C NE 121ST AVE, STE 110 VANCOUVER, WA 98682 80009 TEKTRONIX INC 14150 SW KARL BRAUN DR BEAVERTON, OR 97077- - 0001 PO BOX 500 81073 GRAYHILL INC 561 HILLGROVE AVE...
Page 169 Mechanical Parts List Figure 10- 1: TLA7AAX and TLA7ABX Logic Analyzer Module exploded view 10- 4 TLA7AXX Logic Analyzer Module Service Manual...
Page 170 407- - 4859- - 00 TLA7AA3, TLA7AA4, TLA7AB4 407- - 4860- - 00 BRACKET:BLANK FLAT,MERGE,COVER,LEFT TK1943 407- - 4860- - 00 SIDE,0.050 AL, TLA7AA1, TLA7AA2, TLA7AB2 (NOT SHOWN) 200- - 4672- - 00 COVER:TWO WIDE,0.062 AL,TLA700 SERIES, TK1943 200- - 4672- - 00...
Page 171 367- - 0483- - 00 HANDLE:INJECTOR/EJECTOR ASSEMBLY,TWO 7X318 2TEK 1461 WIDE VXI,W/KEYING,SPRING LOADED,PLASTIC,20% GLASS- - 335- - 0640- - 00 MARKER,IDENT:LABEL,MKD TLA7AA1, 34CH,TOP 0KB05 335- - 0640- - 00 INJECTOR/EJECTOR,0.745 X 0.520,0.010 POLY,GE LEXAN,W/ADHE 335- - 0641- - 00 MARKER,IDENT:LABEL,MKD TLA7AA2, 66CH,TOP...
Page 172 Mechanical Parts List Replaceable parts list (cont.) Fig. & Tektronix Serial no. Serial no. index part number effective discont’d number Name & description Mfr. code Mfr. part number 211- - 0486- - 00 SCREW,MACHINE:4- - 40 X 0.168 L,FLH,100 0KB01...
Page 173 Mechanical Parts List Replaceable parts list Fig. & Tektronix Serial no. Serial no. index part number effective discont’d number Name & description Mfr. code Mfr. part number TLACAL2 Standard Accessories 174- - 4138- - 00 CABLE ASSY,RF:COAXIAL,50 OHM,OPTICAL BD TO...

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Summary of Contents for Tektronix TLA7AA1

Page 2: Service Manual

Page 50: Software Installation

Page 64: Theory Of Operation

Page 121: Inspection And Cleaning

Page 128: Tools Required

Page 144: Troubleshooting

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