Tektronix TLA7ACx User manual

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TLA7ACx

ZZZ

Tektronix Logic Analyzer Module

Service Manual

This document applies to TLA application software version 5.6 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

077-0158-00

Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions.

Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material. Speciﬁcations and price change privileges reserved.

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

Contacting Tektronix

Tektronix, Inc. 14200 SW Karl Braun Drive P.O . B ox 50 0 Beaverto USA

For product information, sales, service, and technical support:

n, OR 97077

In North America, call 1-800-833-9200. World wide , vis i t www.tektronix.com to ﬁnd contacts in your area.

Warranty

Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1) year from the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its option, either will repair the defective product w ithout charge for parts and labor, or will provide a replacement in exchange for the defective product. Parts , modules and replacement products used by Tektronix for warranty work may be n the property of Tektronix.

ew or reconditioned to like new performance. All replaced parts, modules and products become

In order to o the warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for packaging and shipping the defective product to the s ervice center designated by 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.

This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage result b) to repair damage resulting from improper use or connection to incompatible equipment; c) to repair any damage or malfunction caused by the use of non-Tektronix supplies; or d) to service a product that has been modiﬁed or integrated with other products when the effect of such modiﬁcation or integration increases the time or difﬁculty of servicing the product.

THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE PRODUCT IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

TRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE

TEK AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

[W2 – 15AUG04]

btain service under this warranty, Customer must notify Tektronix of the defect before the expiration of

ing from attempts by personnel other than Tektronix representatives to install, repair or service the product;

Table of Contents

General Safety Summary .......................................................................................... v

Service Safety Summary........................ ................................ ................................ . vii

Preface .............................................................................................................. ix

Related Documentation ...................................................................................... ix

Manual Conventions............................................ ................................ ............... x

Introduction ........................................................................................................ xi

Strategy for Servicing .... ................................ ................................ .................... xi

Service Offerings ............................................................................................. xi

Performance Veriﬁcation Procedures............................................................................. 1

Test Equipment................................................................................................. 1

Threshold Accuracy Test............................... ................................ ....................... 1

Setup and Hold.......... ................................ .................................. ..................... 5

Test Fixtures.................................................................................................... 9

Threshold Accuracy Test Fixture ............................................................................ 9

Setup and Hold Test Fixture............. ................................ .................................. .. 10

Maintenance........................................................................................................ 13

Related Maintenance Procedures ........................................................................... 13

Preventing Electrostatic Discharge ......................................................................... 13

Inspection and Cleaning.............. ................................ ................................ ........ 14

Cleaning the P6864, P6880, P6960, and P6980 Compression Footprints .............................. 18

Cleaning the P6864, and P6880 Probe Heads ............... ................................ .............. 18

Cleaning the P6900 Probe Heads ... .................................. ................................ ...... 19

Storing the P6800 Probe Heads ......... ................................ ................................ .... 20

Storing the P6900 Probe Heads ......... ................................ ................................ .... 21

Removal and Installation Procedures.................................... ................................ ........ 23

Tools Required ................................................................................................ 23

Torque Requirements......................................................................................... 23

Injector/Ejector Handles ................. .................................. ................................ .. 24

Covers................ ................................ ................................ .......................... 25

Local Processor Unit Board ................................................................................. 30

Acquisition Board . .. ... .. . .. ... .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . 33

Front and Rear EMI Gaskets ................................................................................ 37

Side EMI Gaskets................. .................................. ................................ .......... 38

Troubleshooting.................................................................................................... 39

Service Level.... ................................ ................................ .............................. 39

Required Documentation .................................................................................... 40

Check for Common Problems ............................. .................................. ................ 40

Eliminate Other Problem Sources........................................................................... 41

Troubleshoot the Logic Analyzer Module ............. ................................ .................... 43

TLA7ACx Logic Analyzer Module Service Manual i

Table of Contents

Adjustment Aft

Updating or Restoring the Logic Analyzer Firmware .................................................... 49

Repackaging Instructions ......................................................................................... 51

Packaging...................................................................................................... 51

Shipping to the Service Center ................ ................................ .............................. 51

Storage..... ................................ ................................ .................................. .. 52

Parts List............................................................................................................ 5

Parts Ordering Information .. ................................ .................................. .............. 53

Using the Replaceable Parts List............................................................................ 54

er Repair..................................................................................... 49

ii TLA7ACx Logic Analyzer Module Service Manual

List of Figures

Figure 1: Setting trigger parameters. .. . .. . .. .. . .. . .. .. . .. .. . .. ... .. . .. .. . .. . .. .. . .. . .. .. . .. .. . .. . .. .. . .. .. . .. . .. . 3

Figure 2: Set the trigger states .................................................................................... 7

Figure 3: Threshold Accuracy test ﬁxture ....................................................................... 9

Figure 4: So

Figure 5: Solder the SMA connectors together ........ .................................. ...................... 11

Figure 6: Completed ﬁxture with termination and coupler ................................................... 11

Figure 7: Cleaning the probe heads ....................... ................................ ...................... 19

Figure 8: Cleaning the P6900 probe heads ............... .................................. .................... 20

Figure 9: Storing the probe head................................................................................. 20

Figure 1

Figure 11: Injector/ejector handle replacement ................................................................ 24

Figure 12: Cover removal ........................................................................................ 26

Figure 13: Removing the merge cable bracket from the cover ............................... ................ 27

Figure 14: Installing the cover onto the chassis. .. . .. .. . .. . .. .. . .. .. . .. .. . .. . .. .. . .. .. . .. . .. .. . .. .. . .. . .. .. . .. . 28

Figure 15: Seating the cover on the chassis .................................................................... 30

re 16: LPU board removal .. ................................ ................................ ................ 31

Figu

Figure 17: Inserting LPU board tabs into front subpanel ..................................................... 32

Figure 18: Remove the single screw from the merge cable bracket ......................................... 33

Figure 19: Removing the merge cable assembly............................... ................................ 34

Figure 20: Removing the acquisition board from the chassis . .. . .. .. . .. ... .. . .. .. . .. .. . .. . .. .. . .. . .. .. . .. .. . 35

Figure 21: Rear EMI gasket removal............ ................................ ................................ 37

gure 22: Rear EMI gasket replacement....................................................................... 38

Figure 23: Primary troubleshooting chart....................................................................... 46

Figure 24: Logic analyzer module exploded view........................................... .................. 55

lder square pins to the SMA connector..... ................................ ...................... 10

0: Storing the P6900 probe heads...................................................................... 21

TLA7ACx Logic Analyzer Module Service Manual iii

Table of Contents

List of Tables

Table 1: External inspection check list.......................................................................... 15

Table 2: Int

Table 3: Tools required for circuit board replacement............. ................................ ............ 23

Table 4: Failure symptoms and possible causes........................................ ........................ 40

Table 5: Diagnostic tests.......................................................................................... 47

Table 6: Requirements after replacement ............................... ................................ ........ 49

ernal inspection checklist ............... ................................ ............................ 16

iv TLA7ACx Logic Analyzer Module Service Manual

General Safety Summary

General Safet

To Avoid Fire or Personal

Injury

ySummary

Review the fo this product or any products connected to it.

To avoid pot

Only qualiﬁed personnel should perform service procedures.

While using this product, you may need to access other parts of a larger system. Read the safety sections of the other component manuals for warnings and cautions r

Ground the Product. This product is indirectly grounded through the grounding conductor of the mainframe power cord. To avoid electric shock, the grounding conductor must be connected to earth ground. Before making connections to the input or output terminals of the product, ensure that the product is properly ground

Observe All Terminal Ratings. To avoid ﬁre or shock hazard, observe all ratings and ma information before making connections to the product.

The i

ed.

nputs are not rated for connection to mains or Category II, III, or IV circuits.

llowing safety precautions to avoid injury and prevent damage to

ential hazards, use this product only as speciﬁed.

elated to operating the system.

rkings on the product. Consult the product manual for further ratings

Terms in this Manual

Do not apply a potential to any terminal, including the common terminal, that

eeds the maximum rating of that terminal.

exc

Power Disconnect. The power cord disconnects the product from the power source.

ot block the power cord; it must remain accessible to the user at all times.

Do n

Do Not Operate Without Covers. Do not operate this product with covers or panels

moved.

Do Not Operate With Suspected Failures. If you suspect that there is damage to this

roduct, have it inspected by qualiﬁed service personnel.

Avoid Exposed Circuitry. Do not touch exposed connections and components when power is present.

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.

These terms may appear in this manual:

TLA7ACx Logic Analyzer Module Service Manual v

General Safety Summary

WARNING. Warning statements identify conditions or practices that could result

in injury or lo

CAUTION. Caution statements identify conditions or practices that could result in

damage to th

ss of life.

is product or other property.

Symbols and Terms on the

Product

These terms may a ppear on the product:

DANGER indicates an injury hazard immediately accessible as you read the marking.

WARNING indicates an injury hazard not immediately accessible as you read the marking.

CAUTION indicates a hazard to property including the product.

The following symbol(s) may appear on the product:

vi TLA7ACx Logic Analyzer Module Service Manual

Service Safety Summary

Service Safet

y Summary

Only qualiﬁe 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 ﬁ rst aid and resuscitation is present.

Disconnect Power. To avoid electric shock, switch off the instrument power, then disconnect the power cord from the mains power.

UseCareWhenServicingWithPowerOn. Dangerousvoltagesorcurrentsmay exist in disconnect test leads before removing protective panels, soldering, or replacing components.

To avoid electric shock, do not touch exposed connections.

d personnel should perform service procedures. Read this Service

this product. Disconnect power, remove battery (if applicable), and

TLA7ACx Logic Analyzer Module Service Manual vii

Service Safety Summary

viii TLA7ACx Logic Analyzer Module Service Manual

Preface

This is the service manual for the TLA7ACx Series Logic Analyzer Module. Read this preface to learn how this manual is structured, what conventions it uses, and where you can Introduction, which follows this preface, for important background information needed before using this manual for servicing this product.

Related Documentation

Item Purpose Location

TLA Quick Start User Manuals

High-level operational overview

ﬁnd other information related to servicing this product. Read the

Online Help

Installation Quick Reference Cards High-level installation information

Installation Manuals

of Logic A nalyzers

XYZs

Declassiﬁcation and Securities instructions

Application notes

Product Speciﬁcations & Performance Veriﬁcation Procedures

I.NET Documentation

Field upgrade kits

In-depth operation and UI help

Detailed ﬁrst-time installation inform ation

Logic analyzer basics

Data security concerns speciﬁcto sanitizing or removing memory devices from Tektronix products

lection of logic analyzer application

Col speciﬁc notes

TLA Product speciﬁcations and performance veriﬁcation procedures

Detailed information for controlling the logic analyzer using .NET

Upgrade information for your logic analyzer

Optional Service Manuals Self-service documentation for modules

nd mainframes

TLA7ACx Logic Analyzer Module Service Manual ix

Preface

Manual Conven

Acquisition

tions

Board

LPU Board

Maintenance Procedures

Modul

This manual uses certain conventions that you should be familiar with before attempting service.

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 process or unit (LPU) board to provide logic analysis information to the o per

The LPU board is one of the circuit boards inside the logic analyzer module that provides the main communications interface with the acquisition board and the mainfra

Maintenance procedures are used for fault isolation and repair to the circuit board level or to the replaceable part level.

Throughout this manual, the term "module" refers to a logic analyzer or digital

oscilloscope, or pattern generator unit that mounts inside a mainframe. A module is composed of circuit boards, interconnecting cables, and a user-accessible front pane

ator of the logic analyzer.

me.

Performance Veriﬁcation

Procedures

laceable Parts

Rep

Performance veriﬁcation procedures conﬁrm that a product meets or exceeds the performance requirements for each of the published speciﬁcations.

This manual refers to a ny ﬁeld-replaceable assembly or mechanical part speciﬁcally by its name or generically as a replaceable part. In general, a replaceable part is any circuit board or assembly that is listed in the replaceable

arts list near the end of this manual.

x TLA7ACx Logic Analyzer Module Service Manual

Introduction

Strategy for Servicing

This manual contains information needed to properly service the logic analyzer module, as well as general information c ritical to safe servicing.

To prevent personal injury or damage consider the following requirements before attempting service:

The procedures in this manual should be performed only by qualiﬁed service personnel.

Read the General Safety Summary and Service Safety S ummary located at the beginning of this manual.

When using this manual for servicing follow all warnings and cautions.

This manual contains information for correc tive maintenance of this product:

Supports isolation of faults to the failed circuit board or assembly level shown in the replaceable parts list

Supports removal a nd replacement of those boards or assemblies

Service Offerings

rts r emoval and replacement of mechanical parts listed in the

Suppo replaceable parts list

manual does not support component-level fault isolation and replacement.

This

tronix provides service to cover repair under warranty as well as other services

Tek that are designed to meet your speciﬁc service needs.

ether providing warranty repair service or any of the other services listed

Wh below, Tektronix service technicians are well equipped to service the logic analyzer module.

TLA7ACx Logic Analyzer Module Service Manual xi

Introduction

Warranty Repair Service

Calibration and Repair

Service

Service Options

Service Agreements

Tektro ni x w a rr appears behind the title page in this manual.) 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.

In addition to warranty repair, Tektronix Service offers calibration and other services that provide cost-effective solutions to your service needs and qualitystandards compliance requirements. Our instruments are supported worldwide by the leading-edge design, manufacturing, and service resources of Tektronix to provide the best possible service.

The following services can be tailored to ﬁt your requirements for calibration and/or repair of the logic analyzer mod

Tektronix Service Options can be selected at the time you purchase your instrument. You select these options to provide the services that best meet your service needs.

If service options are not added to the instrument purchase, then service agreements are available on an annual basis to provide calibration services or post-warranty repair coverage for the logic analyzer module. Service agreements may be customized to meet special turn-around time and/or on-site requirements.

ants this product for one year from date of purchase. (The warranty

ule.

Service On Demand

Self Service

For More Information

Tektronix also offers calibration and repair services on a "per-incident" basis that is available with standard prices for many products.

Tektronix supports repair to the replaceable-part level by providing for circuit board exchange. Use this service to reduce down-time for repair by exchanging circuit boards for remanufactured ones. Tektronix ships updated and tested exchange boards. Each board comes with a 90-day service warranty.

When you exchange circuit boards, you must supply the following information to allow the board to be preconﬁgured to the proper PowerFlex level. You can also return the repaired module to your local service center for conﬁg

Model number and serial number

PowerFlex option upgrade number

Firmware level

Contact your local Tektronix service center or sales engineer for more information on any of the Calibration and Repair Services just described.

uration.

xii TLA7ACx Logic Analyzer Module Service Manual

Performance Veriﬁcation Procedures

This section contains procedure for performance veriﬁcation of the logic analyzer. Generally, you should perform these procedures once per year or following repairs that affect c

Test Equipment

ertiﬁcation.

The proced

ures in this section use external, traceable signal sources to test key speciﬁcations listed in the TLA Product Speciﬁcations & Performance Veriﬁcation Technical Reference Manual located on the TLA documentation CD or on the Tektronix Web Site.

Test equipment or test ﬁxture Minimum requirements Example

Precision voltage reference or a DC signal generator and precision digital voltmeter

Logic analyzer probe

Data Timing Generator Tektronix DTG 524 with a

Test ﬁxture, Threshold Accuracy

Precision BNC cable One required

Test ﬁxture, Setup and Hold Minimum of two test ﬁxtures

performance veriﬁcation procedures check the following speciﬁcations:

The

(accurate to within ±5mV)

One required

DTGM30 Output Module

One required Refer to Threshold Accuracy

required

P6810

Test Fixture. (See page 9.)

Refer to Setup and Hold Test Fixture. (See page 10.)

Threshold Accuracy

Setup/Hold Window Size

hreshold Accuracy Test

This procedure veriﬁes the threshold voltage accuracy of the logic analyzer.

Equipment required

Prerequisites Warm-up time: 30 minutes

Precision voltage reference or a DC signal generator and precision digital voltmeter (accurate to within ±5mV)

Threshold Accuracy test ﬁxture

P6810 Logic analyzer probe

TLA7ACx Logic Analyzer Module Service Manual 1

Performance Veriﬁcation Procedures

Test Equipment Setup

TLA7000 Setup

Connect a P6810 Threshold Accuracy test ﬁxture. If the voltage source does not have the required output a ccuracy, use a multimeter with the required accuracy to verify the voltage output levels speciﬁed in the procedure.

To set up the logic analyzer for this test, you must deﬁne the characteristics of the channel that you are testing, and then set the trigger parameters:

1. Open the Setup window.

a. In the Grou

(“Test” in the example).

b. Deﬁne the

c. Set the sampling to Asynchronous, 2.0 ns.

d. Set the Acquisition Length to 128K or less.

e. Set Acquire to Samples.

2. Go to the Trigger window and select the Power Trigger tab. Create a trigger

program that triggers the logic analyzer when it doesn’t see all highs or all lows:

probe from the logic analyzer to the voltage source, using the

p column, enter a name for the probe group that you are testing

signals for the group that you are testing.

a. Click the If Then button.

b. Set the channel deﬁnition to match the ﬁgure shown. (See Figure 1.)

c. After you set the channel deﬁnitions, click OK.

2 TLA7ACx Logic Analyzer Module Service Manual

Performance Veriﬁcation Procedures

Figure 1: Setting trigger parameters

TLA7ACx Logic Analyzer Module Service Manual 3

Performance Veriﬁcation Procedures

Veriﬁcation Procedure

Complete the fo the copy of the Calibration Data Sheet.

1. Go to the Setup voltages to 4 V.

2. Set the volt

3. Start the logic analyzer and verify that it does not trigger.

4. Increase the voltage in 10 mV steps, waiting at least 3 seconds between steps

to make sure that the logic analyzer continues to run without triggering. Continue u

5. Set the voltage source to 4.150 V.

6. Start the logic analyzer and verify that it does not trigger.

7. Decrease the voltage in 10 mV steps, waiting at least 3 seconds between

steps to make sure that the logic analyzer continues to run without triggering. Continue until the logic analyzer triggers and then record the voltage.

8. Add the two voltage values and divide by two. Verify that the result is

4.00 V ±75 mV. Record the voltage on the Calibration Data Sheet.

9. Go to the Setup window and set the logic analyzer threshold voltages to –2.0 V.

llowing steps to complete this procedure. Record the results on

window of the logic analyzer and set the probe threshold

agesourceto3.850V.

ntil the logic analyzer triggers and then record the voltage.

10. Repeatsteps3through8for–2.130Vand–1.870V.

11. Add the two voltage values and divide by two. Verify that the result is

–2.00 V ±55 mV. Record the voltage on the Calibration D ata Sheet.

12. Repeat the procedure for each probe channel group that you want to verify.

4 TLA7ACx Logic Analyzer Module Service Manual

Setup and Hold

Performance Veriﬁcation Procedures

This procedure veriﬁes the setup and hold speciﬁcations of the logic analyzer.

Digital Timing Generator

Setup

Equipment re

Prerequisi

1. Verify tha

quired

tes

Tektronix DTG 524 Data Timing Generator with a DTGM30 Output Module

Precision B

Setup and Hold test ﬁxture

Warm-up tim

NC cable

e: 30 minutes

t the digital timing generator (DTG) has been calibrated so that the

channel-to-channel skew is minimized.

2. Set up the

DTG so that a channel (CH1 for example), is set to be a clock

pattern of alternating 1 and 0 (101010… binary) starting with 1 (rising edge).

3. Set the output frequency to 250 MHz. (This may require you to set the D TG base clock to 500 MHz for this pattern to represent 250 MHz at the channel output.)

4. Set another channel of the DTG (CH2 for example) to a data pattern representing half the period of CH1 (for example 001100110011...binary,

ing with 00).

start

5. Connect the setup and hold test ﬁxtures to the DTG channels that you have set

onnect 50 Ω SMA terminations to the test ﬁxtures.

up. C

6. Connect the DTG channel that you set up a s a clock to the appropriate TLA

x] input.

CK[

7. Connect the other DTG channel to two of the TLA data channels that you

nt to test.

If you want to test other TLA data channels simultaneously and your DTG

as additional outputs available, set up those DTG channels like the ﬁrst data

h channel, and connect them to the other logic analyzer channels that you want to test. (The channels must be in the same probe, and you will need another test ﬁxture for each additional channel pair.) Otherwise, repeat the procedure for each new pair of logic analyzer channels.

8. SettheterminationtoopenoneachDTGchannel.

9. Set the DTG output voltage levels to 2.0 V High and 0.0 V Low, with no offset.

TLA7ACx Logic Analyzer Module Service Manual 5

Performance Veriﬁcation Procedures

TLA7000 Setup

1. Start the TLA Ap

2. Click the DM button to default the module.

3. Click on the Synchronous tab and set the following parameters:

a. Clock Signal: Choose the clock that you connected the DTG output to.

b. Max Clock Ra

c. Global Threshold: Set to 500 mV.

With the 50 Ω external termination attached at the SMA ﬁxture end, this sets the logic analyzer threshold voltage levels to one-half the resulting terminat

4. In the Acquisition Options box, select the following:

a. Acquisition Length: 1K or greater

b. Storage Options: Normal

5. Create a new group: right click in the Group Name column.

6. Select Add Group from the pop-up window. Rename the new group Test.

7. In the

Probe Channels column, enter the names of the two adjacent data

channels that will be used to connect to CH2 of the DTG.

plication and open the Setup Window.

te: 450 MHz

ion voltage, which should be about 500 mV (not 1 V).

NOTE. These procedures test two channels. If you want to check more than two

channels, be sure to set the group and trigger word widths to the same amount.

6 TLA7ACx Logic Analyzer Module Service Manual

Performance Veriﬁcation Procedures

Trigger Logic.

whenever the two data lines are neither 00 nor 11 (binary). This will capture the condition when the two data signals are 01 or 10, as they transition to their common values. To set this up, do the following:

8. Open the LA Trigger window and select the Power Trigger tab. Set up three states as shown. (See Figure 2.)

To complete the setup, you must conﬁgure a trigger to occur

Figure 2: Set the trigger states

TLA7ACx Logic Analyzer Module Service Manual 7

Performance Veriﬁcation Procedures

Veriﬁcation Procedure

Complete the fo on the C alibration Data Sheet.

1. Set the DTG seq

2. Press the RUN button on the TLA and wait a few seconds to verify that

it doesn’t t

3. Starting from 0.000 ns, increase the delay of the DTG clock channel in 100 ps steps until decrease the delay in 10 ps steps to ﬁnd the trigger threshold to within 10 ps. Record this delay amount.

Note that the logic analyzer might trigger because of a glitch when you make a delay change. If the data in the waveform window is correct (all data transitioning at the same time and at the correct frequency), then ignore this "false trigger" and start the logic analyzer again.

As an alternative, you may want to run the logic analyzer in continuous loop mode if the DTG causes a false trigger on the logic analyzer each time you change the delay. Then observe if the data is correct in the waveform window and ig waveform window displays data that was not acquired correctly. Record this delay.

4. Add0.75nstothedelayvaluethatyourecordedinstep3andincreasethe DTG clock delay to match this cumulative value. (For example, if you measured 0.85 ns, increase the delay to 1.60 ns.)

llowing steps to complete this procedure. Record the results

uencer to RUN and the outputs ON.

rigger.

triggering begins to occur. When the TLA begins to trigger,

nore any false triggers. Continue increasing the clock delay until the

5. Press Run and wait a few seconds to verify that it doesn’t trigger. This veriﬁes thatthesetupandholdwindowislessthan0.75ns,whichistheguaranteed speciﬁcation for a single channel.

If you want to measure the actual setup and hold window size for your application, slowly decrease the clock delay in steps (waiting a few seconds between steps to verify that it doesn’t trigger), until the logic analyzer triggers.

ecord this second value. The difference between this second value and the

R value that you measured in step 3 is the measured setup and hold window size.

8 TLA7ACx Logic Analyzer Module Service Manual

Test Fixtures

To complete the procedures in this section, you need to build the Threshold Accuracy test ﬁxture and the Setup and Hold test ﬁxture.

Threshold Accuracy Test Fixture

Use this ﬁxture to gain access to the logic analyzer probe pins. The ﬁxture connects a ll ground pins together, and all signal pins together.

Performance Veriﬁcation Procedures

Equipment Required

Build Procedure

You will need the following items to build the test ﬁxture:

Item Description Example part number

Square-pin strip

Wire 20 gauge

Soldering iron and solder

Use the

1. Set the square-pin strip down and lay a wire across one row of pins on

2. Sold

3. Repeat for the other row of pins.

following procedure to build the test ﬁxture.

de of the insulator as shown. Leave some extra wire at one end for

one si connecting to a test lead. (See Figure 3.)

er the wire to each pin in the row.

0.100 x 0.100, 2 x 8 contacts (or two 1 x 8 contacts )

50 W

SAMTEC part number TSW-102-

06-G-S

Figure 3 : Threshold A ccuracy test ﬁxture

TLA7ACx Logic Analyzer Module Service Manual 9

Performance Veriﬁcation Procedures

Setup and Hold

Equipment Required

Build Procedure

Test Fixture

This ﬁxture provides square-pin test points for logic analyzer probes when they are used to probe in-line SMA connections. Note that you need a minimum of two test ﬁxtures

You will need the following items to build the test ﬁxture:

Item Descriptio

SMA connec required for each ﬁxture)

Square-pin strip

SMA termination 50 Ω, ≥2 GHz bandwidth

SMA adapter

Soldering iron and solder

Use the

to complete the procedure.

tor (tw o

Female, PC

0.100 x 0. (or two 1 x 2 contacts )

Male-to-male Johnson part number

50 W

B mount

100, 2 x 2 contacts

following procedure to build the test ﬁxture.

Example par

SV Microwa 2985-6035, -6036, or -6037

SAMTEC part number TSW-102-06-G-S

Johnson part number 142-0801-866

142-0901-811

t number

ve part number

1. Arrange one SMA connector as shown. (See Figure 4.)

2. Align the square pins at a right angle to the connector.

Figure 4: Solder square pins to the SMA connector

3. Solder one set of square pins to the SMA ground conductor.

4. Solder the other set of square pins to the SMA center conductor.

10 TLA7ACx Logic Analyzer Module Service Manual

Performance Veriﬁcation Procedures

5. Align the secon conductors of the connectors together. (See Figure 5.)

Figure 5: Solder the SMA connectors together

6. Solder the ground conductors of the SMA connectors together.

7. Attach the termination and coupler to the ﬁxture.

d SMA connector to the ﬁrst as shown and solder the center

Figure 6: Completed ﬁxture with termination and coupler

TLA7ACx Logic Analyzer Module Service Manual 11

Performance Veriﬁcation Procedures

12 TLA7ACx Logic Analyzer Module Service Manual

Maintenance

This section contains the information needed for periodic and corrective maintenance of the Logic Analyzer Modules. The following sections are included.

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.

The Removal and Installation Procedures provide procedures for removing and installing circuit boards and other common replaceable parts.

Troubleshooting provides information for isolating faulty circuit boards, probes, and other faults.

Repackaging Instructions provides packaging information for shipment or storage.

Maintenance Procedures

The TLA7KUP Mainframe Field Upgrade Instruction Manual contains some maintenance procedures not included in this manual. Refer to the TLA7KUP

rame Field Upgrade Instruction Manual for information on upgrading the

Mainf

mainframe software or module ﬁrmware.

Preventing Electrostatic Discharge

When performing any service that requires internal access to the logic analyzer module, adhere to the following precautions to avoid damaging internal modules and their components due to electrostatic discharge (ESD).

CAUTION. Static discharge can damage any semiconductor component.

TLA7ACx Logic Analyzer Module Service Manual 13

Maintenance

Inspect

ion and Cleaning

Inspection and cleaning are done as preventive maintenance. Preventive maintenance, when done regularly, may prevent malfunctions and enhance reliab

Preventive maintenance consists of visua lly inspecting and cleaning the instr maintenance depends on the severity of the environment in which the instrument is used. A proper time to perform preventive maintenance is just before having performance veriﬁcation procedures performed or as an incoming inspection.

Minimize handl

Transport and store static-sensitive modules in their static protected containers. L

Wear a grounded antistatic wrist strap while handling these modules. Service static-sen

Nothing capable of generating or holding a static charge should be allowed on the work s

Handle circuit boards by the edges when possible.

Do not slide the modules over any surface.

Avoid handling the modules in areas that have a ﬂoor or work surface capable of generating a static charge.

ility.

ument, and using general care when operating it. How often to perform

ing of static-sensitive modules.

abel any package that contains static-sensitive modules.

sitive modules only at a static-free work station.

urface.

General Care

Inspection and Cleaning

Procedures

The side cover keeps dust out of the instrument and should be in place during normal operation.

spect and clean the instrument as often as operating conditions require.

In Collection of dirt on internal components can cause them to overheat and breakdown. Dirt acts as an insulating blanket, preventing efﬁcient heat dissipation. Dirt also provides an electrical conduction path that can cause failures, especially under high-humidity conditions.

14 TLA7ACx Logic Analyzer Module Service Manual

Maintenance

CAUTION. Avoid using chemical cleaning agents that might damage the plastics

and external l

abels used in the instrument.

Use a cloth dampened with water to clean external surfaces. To prevent damage to electrica

l components from moisture during external cleaning, use only enough

liquid to dampen the cloth or applicator.

Exterior Inspection

Use a 75% iso

propyl alcohol solution to c lean internal surfaces and rinse with deionized water. Before using any other type of cleaner, consult your Tektronix Service Center or representative.

Inspect t

he outside of the instrument for damage, wear, and missing parts u sing the following table as a guide. Instruments that appear to have been dropped or otherwise abused should be checked thoroughly to verify correct operation and performance.

Immediately repair defects that can cause personal injury or lead to further damage to the logic analyzer module or mainframe where it is used.

Table 1: External inspection check list

Item Inspe

Front panel and side cover

nt panel connectors

Fro

Rear connectors

Accessories

Crac deformations, missing or damaged retainer screws,

ctor handles, or EMI

eje shields.

ken shells, cracked

Bro insulation, and deformed contacts. Dirt in connectors.

ackedorbrokenshells,

Cr damaged or missing contacts. Dirt in connectors.

Missing items or parts of

tems, bent pins, broken or

i frayed cables, and damaged connectors.

ct for

ks, scratches,

r action

Repai

ace defective or

Repl missing mechanical parts.

Replace defective parts or clean parts based on the

eaning procedures.

place defective parts or

Re clean parts based on the cleaning procedures.

Replace damaged or missing items, frayed

ables, and defective

c modules.

Exterior Cleaning

Procedure

To clean the exterior, perform the following steps:

1. Remove loose dust on the outside of the logic analyzer module with a lint

free cloth.

2. Remove remaining dirt with a lint-free cloth or applicator and water, using

only enough liquid to dampen the cloth or applicator. Do not use abrasive cleaners.

TLA7ACx Logic Analyzer Module Service Manual 15

Maintenance

Interior Inspection

Inspect the int

ernal portions of the logic analyzer module for damage and wear using the following table as a guide. When found, defects should be repaired immediately. If you must replace an internal component, refer to the Removal and Installation Procedures. (Seepage23.)

CAUTION. Do not attempt to repair any circuit boards with a soldering iron. Most

of the internal components are surface mounted devices. Using a soldering iron can damage t

he surface-mounted components and internal circuit boards. Refer the replacement of surface-mounted components to qualiﬁed service personnel with the appropriate tools.

Table 2: I

Item Inspect for Repair action

Circuit boards

Resistors Burned, cracked, broken,

Capacitors

Semiconductors

Wiring and cables Loose plugs or connectors.

nternal inspection checklist

Loose, b connections. Burned circuit boards. Burned, broken, or cracked

bliste

Damage Corroded solder on leads or terminals.

Damaged parts or distorted pins.

Burn wiring.

circuit-run plating.

red condition.

d or leaking cases.

ed, broken, or frayed

roken, or corroded

Remove failed circuit board and replace with a new one.

Remove and replace with a new one.

Remove failed circuit board and replace with a new one.

Replace circuit board if parts are d

Firmly seat connectors. Repa boards with defective wires or cables.

failed circuit board

amaged.

ir or replace circuit

CAUTION. To prevent damage from electrical arcing, ensure that circuit boards

and components are dry before applying power to the logic analyzer module.

16 TLA7ACx Logic Analyzer Module Service Manual

Maintenance

Interior Cleaning

Procedure

To clean the int

1. Blow off dust with dry, low-pressure, deionized air (approximately 9 psi).

2. Remove any remaining dust with a lint free cloth dampened in isopropyl

alcohol (75% solution) and rinse with warm deionized water. (A cotton-tipped applicator

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).

3. Gain access to the parts to be cleaned by removing easily accessible shields and panels. (See page 23.)

4. Spray wash dirty parts with the isopropyl alcohol and wait 60 seconds for the majority of the alcohol to evaporate.

5. Use warm (48.9 °C to 60 °C / 120 °F to 140 °F) deionized water to thoroughly rinse the parts.

6. Dry all parts with low-pressure, deionized air.

erior, perform the following steps:

is useful for cleaning in narrow spaces and on circuit boards.)

Cleaning the Probes

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.

To clean the exterior surfaces of the probes, remove dirt and dust with a soft brush. For more extensive cleaning, use only a damp cloth. Never use abrasive cleaners or organic solvents

CAUTION. Static discharge can damage any semiconductor component in the

probe head. Always wear a grounded antistatic wrist strap whenever handling

he probe head. Also verify that anything to which the probe head is connected

t does not carry a static charge.

NOTE. Never clean the elastomers. Always replace them instead. Refer to

the P6800 Series Logic Analyzer Probe Instruction Manual for information on replacing the probe elastomers and other probe accessories.

TLA7ACx Logic Analyzer Module Service Manual 17

Maintenance

Cleaning the P

6864, P6880, P6960, and P6980 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. Clean the compression footprints according to the following steps:

1. Use a lint-free cloth moistened with isopropyl alcohol and gently wipe the footprint surface.

2. Remove any remaining lint u sing a nitrogen air gun.

NOTE. Use alcohol sparingly and be sure that you have removed any remaining

lint or residue with the nitrogen air gun.

Cleaning the P6864, and P6880 Probe Heads

e connecting the P6864 or P6880 probes to the target system, ensure that

Befor the probe heads are free from dust, dirt, and contaminants. If necessary, clean the probe heads according to the following steps.

CAUTION. Static discharge can damage semiconductor c omponents in the probe

head. Always wear a grounded antistatic wrist strap whenever handling the probe head. Also verify that anything to which the probe head is connected does not

ry a static charge.

car

NOTE. Never clean the elastomers. Always replace them instead. Refer to the

erating Basics section of the P6800 Series Logic Analyzer Probe Instruction

Op Manual for information on replacing elastomers.

18 TLA7ACx Logic Analyzer Module Service Manual

Maintenance

1. Remove elastom

2. Moisten a cotton swab with isopropyl alcohol.

Figure 7: Cleaning the probe heads

3. Gently wipe the edge print pads of the hybrid.

4. Remove a

5. Put the elastomer holder back in place.

CAUTIO

N. Do not touch the elastomers to avoid damaging the probe contacts.

er holder. (See Figure 7.)

ny remaining lint using a nitrogen air gun.

Cleaning the P6900 Probe Heads

To maintain a reliable electrical contact, keep the probes free from dirt, dust, and contaminants. Remove dirt and dust with a soft brush. Avoid brushing or rubbing the c-spring contacts. For more extensive cleaning, use only a damp cloth. Never use abrasive cleaners or organic solvents .

CAUTION. Static discharge can damage semiconductor components in the probe

head. Alwa head. Also verify that anything to which the probe head is connected does not carry a static charge.

CAUTION. To prevent damage during the probe connection process, do not touch

the exposed edge of the interface clip. Do not drag the contacts against a hard edge or corner.

ys wear a grounded antistatic wrist strap whenever handling the probe

TLA7ACx Logic Analyzer Module Service Manual 19

Maintenance

Figure 8 : Cleaning the P6900 probe heads

Storing the P6800 Probe Heads

To protect the elastomer, it is important to properly store the probe heads when the probes a

renotinuse. (SeeFigure9.)

1. Locate the keying pin on the probe end and align it to the keying pin hole on the n

2. While holding the probe end at a perpendicular angle to the nutbar, ﬁnger torque).

utbar.

-tighten both probe head screws until snug (no more than 1 in-lbs of

Figure 9: Storing the probe head

20 TLA7ACx Logic Analyzer Module Service Manual

Maintenance

Storing the P6

900 Probe Heads

To protect the probe head, when the probes are not in use place the probe head cover on the probe. (See Figure 10.)

1. Gently slide the probe cover over the probe end.

Figure 1 0: Storing the P6900 probe heads

TLA7ACx Logic Analyzer Module Service Manual 21

Maintenance

22 TLA7ACx Logic Analyzer Module Service Manual

Removal and Installation Procedures

This section describes how to remove and install the m ajor mechanical and electrical modules. The procedures in this section assume that you already have removed the module from the mainframe.

WAR N ING. Before doing any procedures in this manual, read the General Safety

Summary and

To prevent possible injury to service personnel or damage to electrical components, read Preventing Electrostatic Discharge. (See page 13.)

Service Safety Summary located at the beginning of this manual.

Tools Requ

ired

Torque Requirements

The following table lists the tools needed to replace the internal components of the logic analyzer module.

Table 3:

Name Descrip

Screwd

1/4-in

9/16-

Needle-nose pliers

Tighten all T-9 and T-10 screws to 4 in. lbs. Tighten standoff posts to 8 in. lbs.

Tools required for circuit board replacement

riverwithaT-9andaT-10Torxtip

ch nut driver

inch nut driver

Standa

Stand

Stan

tion

rd tool

ard tool

dard tool

TLA7ACx Logic Analyzer Module Service Manual 23

Removal and Installation Procedures

Injector/Eje

ctor Handles

Removal

You will need a screwdriver with a T-10 tip to complete the following procedures.

Use the following procedure to remove the injector/ejector handles:

1. Place the module on the right side. (See Figure 11.)

2. Remove the two screws that secure the injector/ejector handle to the chassis.

3. Remove the

injector/ejector handle from the module.

Figure 11: Injector/ejector handle replacement

24 TLA7ACx Logic Analyzer Module Service Manual

Removal and Installation Procedures

Covers

Installation

Removal

Use the followi ﬁgure. (See Figure 11.)

NOTE. The top and bottom injector/ejector handles are not interchangeable. The

top injector/ejector handle assembly hasanotchonrightsideandatabontheleft side; the bottom injector/ejector handle assembly does not have a notch or a tab.

1. Install the injector/ejector handle through the front panel c utout onto the mounting post.

2. Install the screws to secure the injector/ejector handle to the chassis.

3. Apply the proper replacement label (see the Replaceable Mechanical Parts

List for label part numbers if necessary).

You will need a screwdriver with a T-9 and a T-10 tip to complete the following procedures.

Use the following procedure and ﬁgures to remove the covers:

ng procedure to install the injector/ejector handles by referring the

1. Place the module on the right side. (See Figure 12.)

2. Remo

3. Rem

4. Removethetwotopscrewsandthetwobottomscrewsthatsecurethecover

5. If you have a 102-channel module or a 136-channel module with a merge

6. Slide the cover back to disengage the tab and lift the cover from the chassis.

ve the two screws on the rear of the chassis and the two rear screws,

located on either side of the rear panel, that secure the rear panel to the chassis.

ove the rear panel and set it aside.

the chassis.

ble, complete to following steps. (See Figure 13.)

a. Remove the eight T-9 countersunk screws holding the bracket to the cover.

b. Lift the assembly out of the cover and then reach into the hole and

disconnect the merge cable from the circuit board.

TLA7ACx Logic Analyzer Module Service Manual 25

Removal and Installation Procedures

Figure 12: Cover removal

26 TLA7ACx Logic Analyzer Module Service Manual

Removal and Installation Procedures

ure 13: Removing the merge cable bracket from the cover

Fig

TLA7ACx Logic Analyzer Module Service Manual 27

Removal and Installation Procedures

Installation

Use the followi

NOTE. Install the cover tightly against the chassis. This will ensure that the

module ﬁts into adjacent slots in the mainframe.

1. Place the module on its right side. (See Figure 12.)

CAUTION. To prevent damage to the module during the installation process,

reinstall the cover exactly as described in steps 2 through 8.

If the cover is not properly seated, the module can be damaged when you install it in a mainframe.

2. Insert the cover at an angle (step 1) such that the front edge of the cover engages with the EMI gaskets on the back of the front panel. Then push the rear of the cover in place (step 2). (See Figure 14.)

ng procedure and ﬁgures to install the covers:

Figure 14: 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 15.)

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.

5. Slide the rear panel on the chassis and install the two rear panel T-10 Torx-drive screws.

6. Gently squeeze the chassis ﬂange and rear panels ﬂange together while tightening the screws on the sides. This ensures that the rea r panel does not

28 TLA7ACx Logic Analyzer Module Service Manual

Removal and Installation Procedures

rotate, otherw mainframe.

7. Install the tw module (one on each side of the cover).

8. Place the co

9. If your instrument has a merge cable, complete the following steps to install

the merge ca

a. Feed the merge cable through the cover.

b. Carefully connect the merge cable to the circuit board. (See Figure 13.)

c. Insert the bracket assembly into the hole in the cover.

d. Install the eight T-9 countersunk screws on the bracket.

10. Check and tighten all screws to 4 in lbs.

ise the module may not seat properly when installed in the

o remaining T-10 Torx-drive screws nearest the rear of the

ver onto the chassis.

ble assembly:

TLA7ACx Logic Analyzer Module Service Manual 29

Removal and Installation Procedures

Figure 1 5: Seating the cover on the chassis

Local Processor Unit Board

ill need a screwdriver with a T-10 tip to complete the following procedures.

You w

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.

30 TLA7ACx Logic Analyzer Module Service Manual

Removal and Installation Procedures

Removal

Use the followi

1. Perform the Covers removal procedure. (See page 31.)

2. Remove the ﬁve T-10 Torx-drive screws that secure the LPU board to the

chassis.

CAUTION. Ha

extension.

3. Carefully lift the LPU board up from the chassis to disengage the 160-pin connecter from the acquisition board.

4. Move the LPU board away from the front panel until the tabs clear the front subpanel and then remove the LPU board from the chassis. (See Figure 16.)

ng procedure and ﬁgure to remove the LPU board:

ndle the LPU board gently to avoid breaking the front panel LED

Figure 16: LPU board removal

TLA7ACx Logic Analyzer Module Service Manual 31

Removal and Installation Procedures

Installation

Use the followi

1. Place the LPU board (component side down) over the chassis and insert the tabs on the LPU

2. Line up the pins on the 160-pin connector from the LPU board to the acquisitio

3. Install the ﬁve T-10 Torx-drive screws that secure the LPU board to the chassis.

4. Perform the Covers installation procedure. (See page 28.)

NOTE. Aft

level. The PowerFlex conﬁguration information is listed on the side panel of the logic analyzer module. This information should match the module speciﬁc information on the 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.

ng procedure a nd ﬁgure to install the LPU board:

board into the front subpanel as shown in following ﬁgure.

n board and gently press the LPU board in place.

er replacing the LPU board, you must verify the proper PowerFlex

igure 17: Inserting LPU board tabs into front subpanel

32 TLA7ACx Logic Analyzer Module Service Manual

Acquisition Board

Removal and Installation Procedures

You will need a1/4inch nut driver in addition to the T-10 Torx tip screwdriver to complete the following procedures.

Removal

Use the following procedure to remove the acquisition board by referring the ﬁgure. (See Figure 20.)

1. Perform the Covers removal procedure. (See page 25.)

2. Perform th

NOTE. The 34-channel and 68-channel modules do not have a left side or right

side merge cable. For these modules, ignore the steps dealing with the merge cable.

3. Complete the following steps and ﬁgures to remove the merge cable assembly.

a. Turn the chassis over and remove the two T-10 screws from the merge

cable assembly bracket as shown in the following ﬁgure.

e Local Processor Unit Board removal procedure. (See page 31.)

Figure 18: Remove the single screw from the merge cable bracket

b. Carefully slide the bracket back underneath the cover until you can grasp

theedgeasshowninthefollowingﬁgure.

c. Lift the merge cable assembly bracket out of the hole being careful not to

damage the assembly.

d. Disconnect the merge cable from the acquisition board and set the

assembly aside.

TLA7ACx Logic Analyzer Module Service Manual 33

Removal and Installation Procedures

Figure 19: Removing the merge cable assembly

4. Turn the chassis over and then remove the ﬁve spacer posts with the

/4nut

driver from the acquisition board.

5. Disconnect the four analog output cables on the acquisition board.

34 TLA7ACx Logic Analyzer Module Service Manual

Removal and Installation Procedures

6. Remove the ﬁve T front of the chassis.

-10 screws from the acquisition board located near the

Figure 20: Removing the acquisition board from the chassis

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.

TLA7ACx Logic Analyzer Module Service Manual 35

Removal and Installation Procedures

Installation

Use the followi

1. Place the acquisition board into the chassis.

2. Carefully slide the acquisition board into the chassis until the probe connectors

ﬁt snuggly into the front panel slots.

3. Install ﬁve T-10 screws on the acquisition board at the front of the chassis.

4. Install the ﬁve spacer posts that secure the acquisition board to the chassis.

5. Connect the four analog output cables from the front panel to the acquisition

board.

6. Complete the following steps to install the merge cable assembly (skip these steps if your instrument does not have a merge cable assembly):

a. Turn the chassis over.

b. Feed the merge cable into the hole and connect it to the circuit board.

(See Figure 19.)

c. Carefully slide the merge cable assembly into the hole.

d. Slide

bracket in place.

ng procedure to install the acquisition board:

the bracket forward and install the tow T-10 screws to hold the

7. Perfo

8. Perform the Covers installation procedure. (See page 32.)

rm the Local Processor Unit Board installation procedure. (See page 32.)

36 TLA7ACx Logic Analyzer Module Service Manual

Removal and Installation Procedures

Front and Rear

Removal

EMI Gaskets

Use the following procedure to remove the front and rear EMI gaskets:

1. Perform the Cover removal procedure. (See page 33.)

2. For the front EMI gaskets:

a. Locate the gasket to be replaced.

b. Lift the ga

3. For the two rear gaskets on the chassis:

a. Perform the Local Processor Unit Board removal procedure. (See

b. Perform the Acquisition Board removal procedure. (See page 33.)

c. Lift the gasket ﬁngers and rotate the gasket off. (See Figure 21.)

sket ﬁngers and rotate the gasket off.

page 31.)

gure 21: Rear EMI gasket removal

TLA7ACx Logic Analyzer Module Service Manual 37

Removal and Installation Procedures

Installation

Use the followi

1. Position each gasket so the gasket ﬁngers face the outside of the module.

CAUTION. To a

2. Pick up each gasket at the end whe re the gasket ﬁnger is formed up. Then rotate the gasket on. As you do this, lift up any ﬁngers that bind to the chassis or cover.

3. Slide each gasket gently from s ide to side to ensure that the gasket snaps in place.

ng procedure and ﬁgure to install the EMI gaskets:

void breaking the gasket ﬁngers, do not lift the ﬁngers too high.

Side EMI Gaskets

Figure 22: Rear EMI gasket replacement

4. Reinstall the Acquisition board if you removed them to install the rear EMI gaskets. (Se

5. Reinstall the LPU board if you removed them to install the rear EMI gaskets. (See page 32.)

6. Install the module covers. (See page 32.)

To remove the side EMI gaskets, remove the covers and circuit boards as necessary to access

To install the side EMI gaskets , pop them into place on the covers.

the EMI gaskets. (See Figure 24.) Pop the EMI gaskets out of the cover.

epage36.)

38 TLA7ACx Logic Analyzer Module Service Manual

Troubleshooting

WAR N ING. Before performing this or any other procedure in this manual, read the

General Safety Summary and Service Safety Summary located in the Tektronix Logic Analyzer Family Product Safety & Compliance Instructions (Tektronix part number 071-2 components, read Preventing Electrostatic Discharge. (See page 13.)

591-xx). Also, to prevent possible injury or damage to electrical

Service Level

This secti within the logic analyzer module. The process is as follows:

1. Review Ch

2. Perform

3. Perform the Troubleshoot the Logic Analyzer Module procedure to identify

If you replace a faulty circuit board or assembly found using these procedures, you must follow any veriﬁcation and adjustment procedures identiﬁed in Table 5-6 for the replaced board. (See Table 6.)

This section supports isolation of faults within the logic analyzer module to the replaceable-part level that’s reﬂected in the replaceable parts lists in Mechanical Parts List section. (See page 53.) In most cases, faults are isolated to circuit boards

assemblies, but not to individual components on those boards. (See page xi.)

on contains information and procedures designed to help isolate faults to

eck for Common Problems to eliminate easy to ﬁnd problems.

(See page 40.)

procedures outlined in Eliminate Other Problem Sources to eliminate the mainframe, probes, and other modules as the source of the fault(s). (See page 41.)

the failed replaceable part within the module. (See page 43.)

Fault isolation is supported to the following circuit boards and replaceable parts:

LPU board

Acquisition board

TLA7ACx Logic Analyzer Module Service Manual 39

Troubleshooting

Required Documentation

You may need to refer to the additional service manuals to isolate faults. In addition, other manuals and other sections in this manual contain instructions you will need to complete repairs after locating a faulty part. For a list of supplemental documentation, refer to the following table.

Manual or Section Purpose

TLA7000 Series Mainframe Service Manual To eliminate benchtop or portable mainframe

TLA7000 Series Logic Analyzer Installation Manual

TLA7KUP Mainframe Field Upgrade Instruction Manual

Check for Common Problems

as problem source (whichever conﬁguration is in use)

To remove and reinstall modules in mainframe

To reinstall the TLA application software

Use the following table to quickly isolate possible failures. The table lists problems related to the logic analyzer module and possible ca uses. The list is not exhaustive, but it may help you eliminate problems that are easy to ﬁx.

CAUTION. To avoid damaging the logic an

alyzer module or the mainframe, be

sure to power down the mainframe before removing or reinstalling any modules.

Table 4: Failure symptoms and possibl

Symptom Possible cause(s)

Mainframe does not power on Power connection faulty; check or substitute power cord

Mainframe does not boot

Modules not recognized

ecauses

Fuse blown; check line fuse

Mainframe power supply failure; contact local Tektronix service center

Mainframe controller is not installed properly (or not at all)

Non-system disk or ﬂoppy in external drive; make sure logic analyzer boots from hard drive (Refer to the TLA7000 Series Logic Analyzer Installation Manual for software reinstallation procedures)

Hard drive failure or corrupted

Modules not fully inserted; mak

ﬁles on hard drive; contact local Tektronix service center

e sure front of module is ﬂush with front panel

Mainframe power supply failur

Corrupted module ﬁrmware; rei Upgrade Instruction Manual for information on reinstalling the latest ﬁrmware

Module logical address switches set to 00. Reset the switches to FF

e; contact local Tektronix service center

nstall ﬁrmware. Refer to the TLA7KUP Mainframe Field

40 TLA7ACx Logic Analyzer Module Service Manual

Table 4: Failure symptoms and possible causes (cont.)

Symptom Possible cause(s)

Controller does not power on Module not fully i nserted; make sure front of module is ﬂush with front panel

Module failure; try substituting a known-good controller module and if necessary, contact

local Tektronix service center

Module does not pass the normal power on diagnostics (READY indicator not green)

Module loses settings when power is turned off

Module will not acquire data or the acquired data is incorrect

Module not fully i nserted; make sure front of module is ﬂush with front panel

Module failure; see Troubleshoot the Logic Analyzer Module, or contact local Tektronix

service center

Open fuses on logic analyzer module circuit boards

Module failure; see Troubleshoot the Logic Analyzer Module, or contact local Tektronix

service center

NV RAM failure; refer to the Local Processor Unit Board for LPU board replacement

instructions. (See page 30.)

Module failure; see Troubleshoot the Logic Analyzer Module, or contact local Tektronix

service center

Faulty probe, leadset, or probe adaptor

Troubleshooting

Eliminate Other Problem Sources

The logic analyzer module is part of the Tektronix Logic Analyzer Family, which

ists of modules installed in either a benchtop or portable mainframe. The

cons

following procedures will help you eliminate the mainframe and other modules as

possible sources of failures.

TLA7ACx Logic Analyzer Module Service Manual 41

Troubleshooting

Substitute a Good Module

If you have avai procedure:

1. Remove the sus

2. Install a known-good logic analyzer module in the same slot as the suspected

module (ver addressasthemodulethatyouarereplacing).

3. Power-on th

4. If the failure symptoms are still present with the known-good logic analyzer

module ins attached probes, not in the logic analyzer module.

5. To elimin are properly connected to the target system.

NOTE. Viewing the diagnostic window from the TLA application may help you

isolate failures to individual modules or to the mainframe.

6. If the logic analyzer operates normally with the known-good logic analyzer module and with known-good probes, the suspect logic analyzer module needs to be repaired. For additional troubleshooting procedures, refer to the Troubleshoot the Logic Analyzer Module. (Seepage43.)

lable a known-good logic analyzer module, perform the following

pect logic analyzer module from the mainframe.

ify that address switches on the rear of the module are set to same

e logic analyzer and check for normal operation.

talled, the problem most likely is in the mainframe or in the

ate the probes, use known-good probes and verify that the probes

e-Level

Prob

Troubleshooting

If the logic analyzer module acquires no data or faulty data, the probes may be at fault. Perform the following procedure to isolate faults to a probe or to the logic analyzer module.

TE. The procedure below requires that the logic analyzer is functional and

operates normally when the modules are installed.

42 TLA7ACx Logic Analyzer Module Service Manual

Troubleshooting

1. Verify that the system.

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. If the problem still occurs, the module may be faulty. To isolate the problems within that module, refer to the Troubleshoot the Logic Analyzer Module. (Seepage43.)

4. If you are using a general purpose probe with lead sets and you have determined that the p robe is faulty, try to isolate the problem to an individual channel. A faulty channel may ind podlets by switching single podlets and observing if the problem tracks with the suspected podlet.

probe is correctly connected to the module and to the target

Troubleshoot the Logic Analyzer Module

Follow the procedure in this section to identify the failed part within the logic analyzer module.

This procedure requires that the module is installed in a fully functional mainframe. If you have not determined that the mainframe is functional, or if you suspect the problem might be in a probe or in another module, refer to the Eliminate Other Problem Sources. (Seepage41.)

icate a faulty probe podlet. Isolate faulty

Equipment Required

Preparation

Calibration and Diagnostic

Procedures

The basic troubleshooting procedures require minimal test equipment. There are no accessible test points to measure voltages. An ohmmeter is recommended for checking fuses.

The fault isolation procedure requires that you:

ecognize codes ﬂashed by the front-panel LEDs during power up

Are familiar with the power-on diagnostics

To ﬁll these requirements, read the topics below before performing the Fault Isolation Procedure. (See page 45.)

The following calibration and diagnostic procedures will help you diagnose problems.

Self Calibration. Use self calibration to calibrate the installed modules. Run the self calibration after a minimum of a 30 minute warm-up and prior to running the extended diagnostics.

TLA7ACx Logic Analyzer Module Service Manual 43

Troubleshooting

Power-On Diagn

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.

Extended Diagnostics.

The extended diagnostics execute more thorough tests than the power-on diagnostics. Using the extended diagnostics, you can d o the following tasks:

Run tests individually or as a group

Run tests once or continuously

Run tests until failures occur

NOTE. Certain diagnostic tests will fail if probes are attached. For best results,

run the diagnostics with probes disconnected from the module.

To run t he extended diagnostics, do the following steps:

ostics. Power-on diagnostics check basic functionality of the

1. Disconnect the probes from the logic analyzer module.

2. Star

3. From the System menu, select Calibration and Diagnostics.

4. Select the Extended Diagnostics p roperty page.

5. Select the individual tests, group of tests, or all tests.

6. Click the Run button.

While the tests are executing, the word Running displays adjacent to the tests. When the tests are complete, either a Pass or Fail indication displays adjacent to each test.

Merged Modules. The extended diagnostics include a special merge test that veriﬁes the correct pipeline adjustment for the master module, inside slave module, and outside slave module. This test does not require the modules to be physically merged together.

Every time modules are merged in the System Conﬁguration window, a calibration is performed between the merged modules. An error message will appear if there are any problems with the merge cables, circuit board traces, or if the calibration fails.

t the TLA application if it is not already running.

44 TLA7ACx Logic Analyzer Module Service Manual

Troubleshooting

Fault I solation Procedure

The Primary Tro logic analyzer module. (See Figure 23.) Use the following procedure with that tree:

To determine if module is recognized, perform the following steps:

1. Install the

2. Before you power on the mainframe, look at the READY, ACCESSED

ARM’D, and T

3. Power on the mainframe and note how the front panel indicators respond.

a. Verify that the green READY indicator turns on while the diagnostics

are being checked. If the green READY indicator does not turn on, the module is the LPU board.

b. Verify t

indicator stays on while the module is accessed by the controller. After the System window displays, the indicator blinks anytime the controller accesses the module.

4. If steps a and b are veriﬁed, the module is recognized; if not veriﬁed, the module is not recognized. Proceed as the troubleshooting tree instructs.

ubleshooting Tree provides troubleshooting steps that test the

logic analyzer module into a known-good mainframe.

RIG’D front panel indicators.

not being recognized which indicates possible problems on

hat after a few seconds the ACCESSED indicator turns on. The

5. If diagnostic failures occur, replace the circuit board indicated by the troubleshooting tree. For further conﬁrmation, you can correlate the failed test displayed with a board using the following table. (See Table 5.) You should

also ﬁrst check the "special cases" of diagnostic failures below:

Note from the tree, that if all the diagnostics pass, but self calibration

fails, replace the Acquisition board.

If any of the Kernel test groups fail (ROM check, LPU RAM, LPU

Address decode, etc.) replace the LPU board.

If the kernel group passes, but there are other failures, replace the

Acquisition board. Also, ensure that the probes are disconnected from the module before running the diagnostics.

If multiple tests fail, the problem could be power-supply related problems

or the mainframe. If replacing the acquisition board does not remedy the failures, try replacing the LPU board.

NOTE. Due to the module design, there are no accessible test points on the

module to connect external test equipment, to help isolate faults to an individual circuit board.

6. Use the Removal and Installation Procedures to replace the faulty circuit board. (Seepage23.)

TLA7ACx Logic Analyzer Module Service Manual 45

Troubleshooting

Primary Troubleshooting

Chart

7. Refer to the Tab and adjustment procedures identiﬁed for the replaced module. (See Table 6.)

le 5-6 after module replacement and perform all veriﬁca tion

Figure 23: Primary troubleshooting chart

46 TLA7ACx Logic Analyzer Module Service Manual

Troubleshooting

Diagnostics Table

The following t

able can help you isolate problems to one of the circuit boards in themodule(usetheRemoval and Installation Procedures to replace the faulty circuit board). (See page 23.)

Table 5: Diagnostic tests

Circuit board Group Test Power on Extended

LPU board Kernel

Acquisition board

Timestamp

Acquisition Data Path

Trigger

Acquisition RAM

ROM Check

LPU RAM

Address Decode

NVRAM Check

Timestamp Rollover

Acquisition RAM Data Bus

Acquisition RAM Address Bus

Timestamp Acquire

Qualiﬁer/Combiner RAMClock

Clock State Machine RAM

Address/Data Bus

MagniVu RAM

Internal RAM

Trigger Crossbar

Signal/Trigger Lines

Trigger State Machine Counters

Preﬁll Counter

Word Recognizer

Transition Detector

Clock Group Detector

At-speed Transition Detect

Snapshot

RAM Select

Acquisition Memory

TLA7ACx Logic Analyzer Module Service Manual 47

Troubleshooting

Table 5: Diagnostic tests (cont.)

Circuit board Group Test Power on Extended

Acquisition board

Miscellaneous Test s

Memory Interface Controller

Miscellaneous 2Tests

Acquisition Address Decode

Threshold

At-speed Async Acquire

Pseudo Random

SFDL-1

SFDL-2

PLL

Demux

Edge Detector

Setup and Hold

Glitch

AD B us

MAR Rollover

Waveform 0

Waveform 1

Waveform Pins

Waveform Change

Search Stack

Internal Search

External Search

Counters

RAM Data

RAM Address

High-Speed Memory Compare

Pattern Acquire

Counters

Timers

Store Stretch

Range Recognizer

Global Storage

CSM Input Path

48 TLA7ACx Logic Analyzer Module Service Manual

Troubleshooting

Adjustment Af

ter Repair

After replacing a circuit board or assembly due to electrical failure, locate the board removed in the following table and perform the indicated procedures.

Table 6: Requirements after replacement

Board replaced Adjustment required Veriﬁcation checks

LPU board Adjustment: PowerFlex1,

Firmware leve l restoration Deskew, Self Calibration, Threshold tests

Acquisition board

The PowerFlex restoration or changes can only be made by Tektronix service p ersonnel.

Refer to the TLA7KUP Mainframe Field Upgrade Instruction Manual for instructions for updating module ﬁrmware.

Adjustment: Self Calibration, Deskew, Threshold tests

Updating or Restoring the Logic Analyzer Firmware

You may have to update the ﬁrmware on the logic analyzer module if the module does not appear in the TLA System window after you have serviced the module or after you have updated the TLA application software on the mainframe. You can update multiple modules and module types during a single ﬁrmware update session. The most current ﬁrmware resides on a ﬁle on the hard disk of the logic analyzer mainframe.

Self Calibration, Power-on and

Extended Diagnostics, performance veriﬁcation procedures

Self Calibration, Power-on and Extended Diagnostics, performance veriﬁcation procedures

1. Note which of the modules that may require new ﬁrmware.

If any modules are missing from the System window, you can verify the status of the modules by doing the following steps:

Select System Properties from the System menu.

Click the Modules tab.

Note the information under the Messages column for any installed

modules. If any modules indicate invalid or similar m essages, you must update the ﬁrmware for those modules.

2. Disconnect any probes connected to the modules that you want to update.

3. Exit the logic analyzer application.

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 mainframe

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. If you have any o lder modules, you may see them listed in the bottom half of the window.

TLA7ACx Logic Analyzer Module Service Manual 49

Troubleshooting

These modules c rear of the modules.

6. Select the mod in the Supported list box near the top of the window. If you are updating more than one module at a time, note the slot location of the module in the selection box.

7. Select Load Firmware from the Execute menu.

8. Click the “TLA7AXX.lod ﬁle.”

NOTE. Be sure to select the proper .lod ﬁle for each module. Note the slot number

in the title bar so that you select the correct module for the .lod ﬁle.

9. Click OK. You will be asked to conﬁrm your action; click Yes when prompted.

NOTE. The program will not allow you to load ﬁrmware to an incompatible

module. For example, the program will not load DSO ﬁrmwaretoalogicanalyzer module.

The program will load the ﬁrmware for each module one at a time. The process may take several minutes per module.

annot be updated until you install the ﬂashjumperonthe

ules that you want to update from the list of modules displayed

10. Exit the ﬁrmware loader program and power down the logic analyzer. You must power down the logic analyzer to allow the TLA application to start up properly.

11. Remove the logic analyzer module from the mainframe.

12. Locate the big label on the side of the module.

cord the ﬁrmware version that is printed on the label. You will need this

13.Re

information to see that the ﬁrmware version matches the label.

einstall the module in the mainframe and power on the mainframe.

14.R

15. After the logic analyzer completes the power-on diagnostics, select System

Properties from the System me nu.

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. If the ﬁrmware versions do not match, power down the mainframe, remove the module from the mainframe and update the label.

50 TLA7ACx Logic Analyzer Module Service Manual

Repackaging Instructions

This section contains the information needed to repackage the logic analyzer module for shipment or storage.

Packaging

If at all possible, use the original packaging to ship or store the instrument. If the original packaging is not available, use a corrugated cardboard shipping carton having a test strength of at least 275 pounds (125 kg) and with an inside dimension at least si cushioning material to prevent the instrument from moving around in the shipping container. Seal the shipping carton with an industrial stapler or strapping tape.

Shipping to the Service Center

Contact the Servic e Center to get an RMA (return material authorization) number, and any return or shipping information you may need.

If the instrument is being shipped to a Tektronix Service Center, enclose the following information:

x inches (15.25 cm) greater than the instrument dimensions. Add

The RMA number.

The owner’s address.

and phone number of a contact person.

Name

Type of instrument and serial number.

Reason for returning.

A complete description of the service required.

NOTE. When ordering the LPU board for exchange or repair, you will need

to supply the above information, including the ﬁrmware level and PowerFlex

onﬁguration information.

Mark the address of the Tektronix Service Center and the return address on the shipping carton in two prominent locations.

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.

TLA7ACx Logic Analyzer Module Service Manual 51

Repackaging Instructions

Storage

The logic analyzer module should be stored in a clean, dry environment. The following environmental characteristics apply for both shipping and storage:

Temperature range: -40 °F to +160 °F (-40 °C to +71 °C).

Altitude: To 40,000 feet (12,190 meters).

52 TLA7ACx Logic Analyzer Module Service Manual

Parts List

This section contains a list of the replaceable parts for the Tektronix logic analyzer module. Use this list to identify and order replacement parts, modules, and subcomponents.

Parts Order

ing Information

Part Number Revision

Level

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 improvem following information in your order:

If you order a part that has been replaced with a different or improved part, your local Tektronix ﬁeld ofﬁce or representative will contact you concerning any change in part number.

Tektronix part numbers contain two digits representing the revision level of the part. For most parts in this manual, you will ﬁnd the letters XX in place of the revision level number.

ents. Therefore, when ordering parts, it is important to include the

Part num

Instrument type or model number

Instrument serial number

Instrument modiﬁcation number, if applicable

ber

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 o f your order, Tektronix will determine the part number revision level needed for

our product, based on the information that you provide.

TLA7ACx Logic Analyzer Module Service Manual 53

Parts List

Using the Replaceable Parts List

This section contains a list of the mechanical and/or electrical components that are replaceable for the logic analyze r module. Use this list to identify and order replacement parts. The following table describes each column in the parts list.

Column Column name Description

1 Figure and i

number

2 Tektronix part

number

3 and 4

6 Name and

Serial number Column three indicates the serial number at which the part was ﬁrst effective. Column four

Qty This indicates the quantity of parts used.

description

ndex

Items in this section are referenced by ﬁgure and index numbers to the exploded view illustrations that follow.

Use this part number when ordering replacement parts from Tektronix.

s the serial number at which the part was discontinued. No entry indicates the part is

indicate good for all serial numbers.

An item name is separated from the description by a colon (:). Because of space limitations, an item name may sometimes appear as incomplete. Use the U.S. Federal Catalog handbook

r further item name identiﬁcation.

H6-1 fo

Abbreviations

viations conform to American National Standard ANSI Y1.1-1972.

Abbre

54 TLA7ACx Logic Analyzer Module Service Manual

Parts List

Figure 24: Logic analyzer module exploded view

Fig. index number

24-1 671-5339-XX 1

-2

-3 200-4672-XX 1

-4 211-0409-XX 22

-5

Tektronix part number

407-4859-XX 1

407-4860-XX 1

348-1537-XX 6

Serial no. effective

Serial no. discont’d Qty Name & description

CIRCUIT BD ASSY:MERGE CONNECTOR, LEFT SIDE, TESTED

BRACKET:MERGE, COVER, LEFT SIDE,0.050 AL

BRACKET:BLANK FLAT,MERGE, COVER, LEFT SIDE, 0.050 AL

COVER:TWO WIDE, 0.062 AL, TLA7000 SERIES,

SCR, ASSEM WSHR:4-40 X 0.312, PNH, STL, CDPL, T-10 TORX DR

GASKET, EMI:CLIP-ON, 1.98 L, BE CU, TIN PLATED, W/T LANCES

TLA7ACx Logic Analyzer Module Service Manual 55

Parts List

Fig. index number

-6

-7

-8 260-2597-X

-9

-10 671-5340

-11

-12 131-6643-XX 4

-13 386-6868-XX 1

-14 348-13

-15 441-2

-16 367-

-17

-1

-22 174-4542-XX 4

Tektronix part number

671-5312-XX 1

150-1278-XX 3

150-1279-XX 1

129-1478-XX

671-6442-

671-6443-XX 1

671-6444-XX 1

-XX

407-4861

407-4862-XX 1

65-XX

258-XX

259-XX

441-2

2260-XX

441-

0484-XX

-0646-XX

335

-1163-XX

335

5-0639-XX

1-1315-XX

67-0483-XX

35-2074-XX

335-2075-XX 1

335-2076-XX 1

Serial no. effective

Serial no. discont’d Qty Name & descript

ion

CIRCUIT BD ASSY:LPU, LOCAL PROCESSOR UNIT

DIODE,OPTO:LED, GRN, 569NM, 2MCD AT 5V, 60 DEG VIEW ANGLE, INTEGRAL RES, TINTED, DIFFUSED, RIGHT AN (NOT SHOWN)

DIODE,OPTO:LED, YELLOW, 585NM, 2MCD AT 5V, 60 DEG VIEW ANGLE, INTEGRAL RES, TINTED DIFFUSED, RIGHT (NOT SHOWN)

SPACER, POST:1.738 L, 1.113 SPACING, W/ 0.35 L, 0.25 HEX, W/ 4-40 INT THD X 6-32 EXTERNAL THD, NIC

SWITCH,ROTARY:HEXADECIMAL, 100MA AT 50VDC, RIGHT ANGLE,

0.430 W X 0.400 H X 0.202 L

CIRCUIT BD ASSY:68 CH, 128MB, ACQUISITION, TLA7AC2

CIRCUIT BD

CIRCUIT BD ASSY:136 CH, 128MB, ACQUISITION, TLA7AC4

CIRCUIT BD ASSY:MERGE CONNECTOR, RIGHT SIDE, TESTED, TLA7AA3, TLA7AA4, TLA7AB4, TLA7NA3, TLA7NA4

BRACKET:MERGE,CHASSIS, RIGHT SIDE, 0.062 AL

BRACKET

CONTACT, ELEC:GROUNDING, 0.169 L, 0.320 DEEP, ELECTROLESS NICKEL

PANEL, VXI:VXI APPLICATION, TWO-WIDE, BACK PANEL

SHLD GSKT, ELEC:SYMETRICAL SLOTTED FINGER, 0.350 W X 7.5 L, RIVIT MTG, SNAP-IN, RIVIT SPACING 1.5 IN

CHASSIS ASSY:68 CH, W/SUB FRONT PANEL LEXAN, 0.62 AL, TLA7AC2

CHASSIS ASSY:102 CH, W/SUB FRONT PANEL LEXAN, 0.62 AL, TLA7AC3

CHASSIS ASSY:136 CH, W/SUB FRONT PANEL LEXAN, 0.62 AL, TLA7AC4

HANDLE,EJECTOR:INJECTOR/EJECTOR ASSEMBLY, TWO WIDE VXI, W/OUT KEYING, SPRING LOADED, PLASTIC, 20% GL

MARKER, IDENT:LABEL, MKD FOR USE WITH TLA7000 SERIES, BOTTOM INJECTOR/EJECTOR, 0.745 X 0.520, 0.010

MARKER, IDENT:CONFIGURATION LABEL, MKD TIMING, STATE SPEED, RAM DEPTH, 0.475 X 0.975, 0.010 POLY, GE

CONN, RF JACK:BNC, PNL, 50 OHM, FEMALE, STR, PELTOLA/PNL MNT, SILVER ALLOY, 0.576 MLG X 0.366 TERMN

HANDLE:INJECTOR/EJECTOR ASSEMBLY, TWO WIDE VXI, W/KEYING, SPRING LOADED, PLASTIC, 20% GLASS-

LABEL, IDNTIFICATION, TLA7AC2

LABEL, IDNTIFICATION, TLA7AC3

LABEL, IDNTIFICATION, TLA7AC4

CA ASSY, RF:COAXIAL, 50 OHM, 8.0 L, MCX TO PELTOLA

ASSY:102 CH, 128MB, ACQUISITION, TLA7AC3

:BLANK FLAT, MERGE, CHASSIS, RIGHT SIDE, 0.062 AL

56 TLA7ACx Logic Analyzer Module Service Manual

Parts List

Fig. index number

-23

Tektronix part number

211-04 86- XX 8

174-4595-XX 4

174-4596-XX 1

174-4597-XX 1

Serial no. effective

Serial no. discont’d Qty Name & descript

ion

SCREW, MACHINE:4-40 X 0.168 L, FLH, 100 DEG, TORX T-9

CABLE ASSY:BNC - BNC, 10X ATTENUATION, 50 OHM COAX

CABLE ASSY; ST

CABLE ASSY;RIBBON, EXTENDER CABLE FIXTURE, 28 AWG STRANDED CAB

RANDED 7 INDIVIDUAL 16 AWG

LE 2 X 17, 0.1 INCH PITCH, CENTER POLARIZED

TLA7ACx Logic Analyzer Module Service Manual 57

Tektronix TLA7ACx User manual

Specifications and Main Features

Frequently Asked Questions

User Manual