Tektronix TLA7ABx, TLA7AAx Service Manual
Service Manual
Tektronix Logic Analyzer Module
(TLA7AAx & TLA7ABx)
071-1043-01
This document applies to TLA application software 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. Refer to all safety summaries prior to
performing service.
www.tektronix.com
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
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
WARRANTY
Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and
workmanship for a period of one (1) year from the date of shipment. If a product proves defective during thi s
warranty period, Tektronix, at its option, e ither will repair the defective product without charge for parts and labor,
or will provide a replacement in exchange for the defective product.
In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration
of 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 service center designated by Tektronix, with
shipping charges prepaid. Tektronix shall pay for the return of the product to Custome r 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 de fect, failure or damage caused by improper use or i mproper or inadequate
maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a ) to repair damage
resulting from attempts by personnel other tha n Tektronix representatives to install, repair or service the product;
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 W ARRANTY IS GIVEN BY TEKTRONIX 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. TEKTRONIX’
RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE 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.
Table of Contents
Specifications
General Safety Summary ix...................................
Service Safety Summary xi....................................
Preface xiii...................................................
Manual Structure xiii................................................
Manual Conventions xiv..............................................
Related Manuals xvi.................................................
Contacting Tektronix xvii.............................................
Introduction xix..............................................
Adjustment and Certification Interval xix................................
Strategy for Servicing xix.............................................
Service Offerings xx................................................
Warranty Repair Service xx.......................................
Calibration and Repair Service xx..................................
Service Options xx..............................................
Service Agreements xx...........................................
Service On Demand xx...........................................
Self Service xx.................................................
For More Information xxi.........................................
Operating Information
Logic Analyzer Module Description 1--1.................................
TLACAL2 Performance Verification and Adjustment Test Fixture Description 1--2
Characteristic Tables 1--2.............................................
Installation 2--1.....................................................
Logical Address 2--1.............................................
Merged Modules 2--2.............................................
Module Installation 2--2...........................................
TLACAL2 Fixture Installation 2--3.................................
Software Installation 2--7.............................................
Verify the Performance Verification Software Version 2--7................
Install the Performance Verification Software 2--7......................
Removing the Software 2--8........................................
Operating Information 2--8............................................
Front Panel 2--8..................................................
Merge Cable Connectors 2--10.......................................
Rear Panel 2--11..................................................
Online Help 2--11.................................................
Diagnostics 2--11.................................................
Self Calibration 2--12..............................................
Menu Overview 2--12..............................................
Merged Modules 2--14................................................
TLA7AXX Logic Analyzer Module Service Manual
i
Table of Contents
Theory of Operation
Merging Rules 2--14...............................................
Merge Procedure 2--15.............................................
Unmerge Procedure 2--19...........................................
Block Level Description 3--1...........................................
Local Processor Unit (LPU) Board 3--1..................................
Processor System 3--1.............................................
Communications Interface 3--2.....................................
Power Supplies 3--2..............................................
Acquisition Board 3--2................................................
Clock Circuitry 3--2..............................................
Probe Interface 3--2..............................................
Analog Output Interface 3--2.......................................
Power Supplies 3--2..............................................
Trigger and Storage Control Circuitry 3--3............................
Acquisition Memory 3--3..........................................
Backplane Interface 3--3...........................................
Probes 3--4.........................................................
Merged Modules 3--4.................................................
Performance Verification
Summary Verification 4--1.............................................
Test Equipment 4--3..................................................
Test Equipment Setup 4--4.............................................
Functional Verification 4--7............................................
Performance Verification Instructions 4--10................................
Performance Verification Procedures 4--12................................
Logic Analyzer Module Certification 4--30................................
Starting the Performance Verification Software 4--4.....................
Software Overview 4--5...........................................
Obtaining Test Results 4--6.........................................
Troubleshooting 4--6..............................................
Test Equipment 4--7..............................................
Setup 4--7......................................................
Module Self Tests and Power-On Diagnostics 4--8......................
Logic Analyzer Module Functional Verification Procedure 4--8............
Probe Functional Verification 4--9...................................
Prerequisites 4--10................................................
Procedure Overview 4--11..........................................
Probe+PIC Procedure 4--15.........................................
Module+MIC Procedures 4--18......................................
Module+Probe Gain and Offset Procedures 4--20........................
Module+Probe Timing Procedures 4--23...............................
Setup and Hold Procedure 4--27......................................
Equipment Setups 4--30............................................
Start the Software 4--32............................................
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TLA7AXX Logic Analyzer Module Service Manual
Adjustment Procedures
Table of Contents
Test Equipment and Initial Setup 5--1....................................
Prerequisites 5--1....................................................
Merged Modules 5--2.................................................
Using the Software 5--2...............................................
Performing the Adjustments 5--2....................................
Adjustment After Repair 5--3.......................................
Tests Performed 5--3.................................................
Self Calibration 5--5.............................................
Probe+PIC Procedures 5--6............................................
Equipment Setups 5-- 6............................................
Start the Software 5--7............................................
Module+MIC Procedures 5--9..........................................
Equipment Setups 5-- 9............................................
Start the Software 5--10............................................
Module+Probe Timing Procedures 5--12...................................
Equipment Setups 5--12............................................
Start the Software 5--13............................................
Merged Deskew Procedures 5--16........................................
Equipment Setups 5--16............................................
Start the Software 5--17............................................
Completing the Adjustment Steps 5 --18...................................
Maintenance
Related Maintenance Procedures 6--1....................................
Preventing Electrostatic Discharge 6--1..................................
Inspection and Cleaning 6--2...........................................
General Care 6--2................................................
Inspection and Cleaning Procedures 6--2..............................
Exterior Inspection 6--3...........................................
Exterior Cleaning Procedure 6--3....................................
Interior Inspection 6--4............................................
Interior Cleaning Procedure 6--4....................................
Cleaning the Probes 6--5...........................................
Cleaning the P6860 and P6880 Compression Footprints 6--6..................
Cleaning the P6860 and P6880 Probe Heads 6--6...........................
Storing the P6860 and P6880 Probe Heads 6--7............................
Removal and Installation Procedures 6--9.........................
Tools Required 6--9..................................................
Torque Requirements 6--9.............................................
Injector/Ejector Handles 6 --10...........................................
Removal 6--10....................................................
Installation 6 --11..................................................
Covers 6--11.........................................................
Removal 6-- 11....................................................
Installation 6--13..................................................
Local Processor Unit Board 6--16.......................................
Removal 6--16....................................................
Installation 6--17.................................................
TLA7AXX Logic Analyzer Module Service Manual
iii
Table of Contents
Acquisition Board 6--19................................................
Removal 6--19....................................................
Installation 6--22..................................................
Fuses 6--23..........................................................
Front and Rear EMI Gaskets 6--23.......................................
Removal 6--23....................................................
Installation 6--24..................................................
Side EMI Gaskets 6--24................................................
Troubleshooting 6--25..........................................
Service Level 6--25...................................................
Required Documentation 6--26..........................................
Check for Common Problems 6--26......................................
Eliminate Other Problem Sources 6--28...................................
Substitute a Good Module 6--28......................................
Probe-Level Troubleshooting 6--28...................................
Troubleshoot the Logic Analyzer Module 6--29.............................
Equipment Required 6--29..........................................
Preparation 6--29..................................................
Calibration and Diagnostic Procedures 6--29............................
Fault Isolation Procedure 6--31......................................
Primary Troubleshooting Chart 6--32..................................
Diagnostics Table 6--33............................................
Adjustment After Repair 6--35..........................................
Updating or Restoring the Logic Analyzer Firmware 6--35...................
Overview of Procedures 6--37...........................................
Repackaging Instructions 6--39..................................
Packaging 6--39......................................................
Shipping to the Service Center 6--39......................................
Storage 6--40........................................................
Options
Electrical Parts List
Diagrams
Mechanical Parts List
iv
TLA7AA1, TLA7AA2, TLA7AA3 and TLA7AA4 Options 7--1..............
TLA7AB2 and TLA7AB4 Options 7--2..................................
Service Options 7--2..................................................
Parts Ordering Information 10--1.........................................
Module Servicing 10--1............................................
Using the Replaceable Parts List 10--2....................................
Abbreviations 10--2...............................................
Mfr. Code to Manufacturer Cross Index 10--2...........................
TLA7AXX Logic Analyzer Module Service Manual
List of Figures
Table of Contents
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 2--3...............
Figure 2--3: MIC and PIC board identification 2--5.................
Figure 2--4: TLACAL2 performance verification and adjustment
test fixture 2--6............................................
Figure 2--5: Front panel of the logic analyzer module 2--9............
Figure 2--6: Merge connector (shown in the extended position) 2--10....
Figure 2--7: Rear panel controls and connectors 2--11................
Figure 2--8: Location of modules in a merged system 2--15............
Figure 2--9: Removing the merge connector assembly from the
module 2--16...............................................
Figure 2--10: Connecting the logic analyzer modules together 2--17.....
Figure 2--11: Installing the merged module set in the mainframe 2--18..
Figure 4--1: Calibration/certification procedure flow chart 4--2.......
Figure 4--2: Performance verification software startup window 4--5....
Figure 4--3: TLACAL2 test fixture connections 4--14.................
Figure 4--4: Default Verification d ialog box 4--17....................
Figure 4--5: Module+Probe timing procedure probe connections 4--25...
Figure 4--6: P6860 Setup & Hold procedure connections 4--28.........
Figure 4--7: Default Certification procedure dialog box 4--33..........
Figure 5--1: TLACAL2 test fixture connections 5--4.................
Figure 5--2: Performance verification software startup window 5--7....
Figure 5--3: Default Adjustment procedure dialog box 5-- 8...........
Figure 5--4: Deskew procedure probe connections 5--14...............
Figure 6--1: Cleaning the probe h eads 6--7.........................
Figure 6--2: Storing the probe head 6--8...........................
Figure 6--3: Injector/ejector handle replacement 6--10................
Figure 6--4: Removing the merge cable bracket from the cover 6--12....
Figure 6--5: Cover removal 6--13..................................
Figure 6--6: Installing the cover onto the chassis 6--14................
TLA7AXX Logic Analyzer Module Service Manual
v
Table of Contents
Figure 6--7: Seating the cover on the chassis 6--15....................
Figure 6--8: LPU board removal 6--17..............................
Figure 6--9: Inserting LPU board tabs into front subpanel 6--18........
Figure 6--10: Remove the single screw from the merge cable bracket 6--19
Figure 6--11: Removing the merge cable assembly 6--20...............
Figure 6--12: Removing the acquisition board from the chassis 6--21....
Figure 6--13: Rear EMI gasket removal 6--23........................
Figure 6--14: Rear EMI gasket replacement 6--24....................
Figure 6--15: Primary troubleshooting chart 6--32...................
Figure 9--1: Logic analyzer block diagram 9--2.....................
Figure 10--1: TLA7AAX and TLA7ABX Logic Analyzer Module
exploded view 10--4.........................................
vi
TLA7AXX Logic Analyzer Module Service Manual
List of Tables
Table of Contents
Table 1--1: Input parameters (with probes) 1-- 3....................
Table 1--2: Analog output 1--3...................................
Table 1--3: Channel width and depth 1--4.........................
Table 1--4: Clocking 1 -- 4.......................................
Table 1--5: TLA7Axx module trigger system 1--8...................
Table 1--6: MagniVu acquisition 1--10.............................
T able 1--7: Merged modules 1--11................................
Table 1--8: Data handling 1--12...................................
Table 1--9: Environmental 1--12..................................
T able 1--10: Mechanical 1--13....................................
Table 1--11: TLA7Axx Logic Analyzer Module Certifications and
compliances 1--13..........................................
Table 1--12: TLACAL2 Performance verification and adjustment
fixture characteristics 1--14..................................
Table 1--13: TLACAL2 Performance verification and adjustment
fixture certifications and compliances 1--16.....................
Table 4--1: Test equipment 4 -- 3..................................
T able 4--2: Performance verification tests 4--11.....................
T able 4--3: TLA7Axx performance verification procedures 4--12.......
Table 4--4: Module+Probe Timing procedure probe connections 4--24..
T able 4--5: Logic analyzer certification test 4--30....................
Table 5--1: Logic analyzer adjustment procedures 5--3..............
Table 5--2: Deskew procedure probe connections 5--13...............
T able 5--3: Merged Deskew procedure probe connections 5--17........
T able 6--1: External inspection check list 6--3......................
T able 6--2: Internal inspection check list 6--4......................
Table 6--3: Tools required for circuit board replacement 6--9.........
Table 6--4: Failure symptoms and possible causes 6--27...............
Table 6--5: Diagnostic tests 6--33..................................
Table 6--6: Requirements after replacement 6--35....................
Table 6--7: Troubleshooting overview 6--37.........................
TLA7AXX Logic Analyzer Module Service Manual
vii
Table of Contents
Table 7--1: TLA7AA1, TLA7AA2, TLA7AA3 and TLA7AA4 options 7--1
Table 7--2: TLA7AB2 and TLA7AB4 options 7--2..................
viii
TLA7AXX Logic Analyzer Module Service Manual
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. Read
the General Safety Summary in other system manuals for warnings and cautions
related to operating the system.
ToAvoidFireor
Personal Injury
Use Proper Power Cord. Use only the power cord specified for this product and
certified for the country of use.
Use Proper Voltage Setting. Before applying power, ensure that the line selector is
in the proper position for the power source being used.
Ground the Product. The TLACAL2 test fixture is grounded through the
grounding conductor of the 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 fixture, ensure that the fixture is properly
grounded.
Ground the Product. The logic analyzer modules are 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 modules, ensure that the
modules are properly grounded indirectly.
Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings
and markings on the product. Consult the product manual for further ratings
information before making connections to the product.
Do not apply a potential to any terminal, including the common terminal, that
exceeds the maximum rating of that terminal.
Replace Batteries Properly. Replace batteries only with the proper type and rating
specified.
Do Not Operate Without Covers. Do not operate this product with covers or panels
removed.
Use Proper Fuse. Use only the fuse type and rating specified for this product.
Avoid Exposed Circuitry. Do not touch exposed connections and components
when power is present.
Do Not Operate With Suspected Failures. If you suspect there is damage to this
product, have it inspected by qualified service personnel.
TLA7AXX Logic Analyzer Module Service Manual
ix
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. These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that could result
in injury or loss of life.
CAUTION. Caution statements identify conditions or practices that could result in
damage to this product or other property.
Terms on the Product. These terms may appear 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.
Symbols on the Product. The following symbol may appear on the product:
CAUTION
Refer to Manual
x
TLA7AXX Logic Analyzer Module Service Manual
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.
Disconnect Power. To avoid electric shock, switch off the instrument power, then
disconnect the power cord from the mains power.
Use Care When Servicing With Power On. Dangerous voltages or currents may
exist in this product. Disconnect power, remove battery (if applicable), and
disconnect test leads before removing protective panels, soldering, or replacing
components.
To avoid electric shock, do not touch exposed connections.
TLA7AXX Logic Analyzer Module Service Manual
xi
Service Safety Summary
xii
TLA7AXX Logic Analyzer Module Service Manual
Preface
Manual Structure
This is the service manual for the TLA7Axx Series Logic Analyzer Module.
Read this preface to learn how this manual is structured, what conventions it
uses, and where you can find other information related to servicing this product.
Read the Introduction, which follows this preface, for important background
information needed before using this manual for servicing this product.
A brief description of each chapter of this service manual follows:
H Specifications contains a product description of the logic analyzer module
and tables of the characteristics and descriptions that apply to it.
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.
H Performance Verification contains the performance verification procedures
for the logic analyzer module and logic analyzer module probes.
H Adjustment Procedures contains the adjustment procedures for the logic
analyzer module.
H Maintenance contains information and procedures for doing preventive and
corrective maintenance on the logic analyzer module. Included are instructions for cleaning, for removal and installation of replacement parts, and for
troubleshooting to the circuit board level.
H Options contains information on servicing any of the factory-installed
options that may be available for the logic analyzer module.
H Diagrams contains block diagrams and interconnection diagrams that are
useful when isolating failed circuit boards.
H Mechanical Parts List includes a table of all replaceable parts, their
descriptions, and their Tektronix part numbers.
TLA7AXX Logic Analyzer Module Service Manual
xiii
Preface
Manual Conventions
This manual uses certain conventions that you should be familiar with before
attempting service.
Acquisition Board
Adjustment Procedures
Adjustment/Verification
Fixture
Certification Procedures
Functional Verification
Procedures
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.
Adjustment procedures check for, and if necessary, correct any adjustment errors
discovered when performing functional or performance verification procedures.
The adjustment verification fixture is a test fixture used to perform the adjustment, functional check, and performance verification procedures. This fixture is
also known as the TLACAL2 fixture in this document. Specifications and
replaceable parts information are documented in this service manual.
Certification procedures certify a product and provide a traceability path to
national standards.
Functional verification procedures verify the basic functionality of the instrument. These procedures include power-on and extended diagnostics, self
calibration, as well as semi-automated or manual check procedures. These
procedures can be used as incoming inspection purposes. This manual provides
information on power-on and extended diagnostics and the self calibration.
LPU Board
Maintenance Procedures
Modules
xiv
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
mainframe.
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
panel.
TLA7AXX Logic Analyzer Module Service Manual
Preface
P6810 General Purpose
Logic Analyzer Probe
P6880 Differential Probe
P6860 High Density Probe
Performance Verification
Procedures
This is a 34-channel general purpose probe used with the TLA7Axx series logic
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.
This is a 34-channel differential probe used with the TLA7Axx series logic
analyzers. This probe is designed for use with differential clocks and single-ended data. It uses a connector-less interface that use a compression contact which
is mechanically reliable and minimizes impact on board layout and design.
Adaptors are available to connect to Mictor probing interfaces.
This is a 34-channel high-density probe used with the TLA7Axx series logic
analyzers. This probe is designed for use with differential clocks and data with
no trade-offs in channels. It uses a connector-less interface that use a compression contact which is mechanically reliable and minimizes impact on board
layout and design. Adaptors are available to connect to Mictor probing interfaces.
Performance verification procedures confirm that a product meets or exceeds the
performance requirements for each of the published specifications.
Replaceable Parts
Safety
TLACAL2 Performance
Verification and
Adjustment Fixture
This manual refers to any 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
parts list near the end of this manual.
Symbols and terms related to safety appear in the Safety Summary found at the
beginning of this manual.
This is a test fixture used with the performance verification procedures,
adjustment procedures, and certification procedures described in this document.
It is used with software to adjust, verify, and certify the P68xx probes and the
TLA7Axx series logic analyzers.
TLA7AXX Logic Analyzer Module Service Manual
xv
Preface
Related Manuals
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
Manual
TLA715 Portable Mainframe Service
Manual
TLA721 Benchtop Mainframe and TLA7XM
Expansion Mainframe Service Manual
TLA7Dx/TLA7Ex Digitizing Oscilloscope
Service Manual
TLA7Nx, TLA7Px, & TLA7Qx Logic
Analyzer Module Service Manual
TLA7Lx, & TLA7Mx Logic Analyzer Module
Service Manual
TLA7PG2 Pattern Generator Service
Manual
Provides operating information on the TLA
Series Logic Analyzer
Provides service information for the
portable mainframes
Provides service information for the
benchtop mainframe and expansion
mainframe
Provides service information for the
digitizing oscilloscope modules
Provides service information for the
TLA7Nx, TLA7Px, and TLA7Qx logic
analyzer modules
Provides service information for the
TLA7Lx, and TLA7Mx logic analyzer
modules
Provides service information for the
TLA7PG2 pattern generator modules
Augments operating information found in
chapter 2 of this manual
Isolating and correcting failures in the
portable mainframe
Isolating and correcting failures in the
benchtop mainframe, controller, or expansion mainframe
Isolating and correcting failures in the DSO
module. Provides adjustment procedures,
performance verification procedures, and
certification procedures for the DSO
modules
Isolating and correcting failures in the logic
analyzer module. Provides adjustment
procedures, performance verification
procedures, and certification procedures for
the logic analyzer modules and logic
analyzer probes
Isolating and correcting failures in the logic
analyzer module. Provides adjustment
procedures, performance verification
procedures, and certification procedures for
the logic analyzer modules and logic
analyzer probes
Isolating and correcting failures in the
pattern generator module. Provides
adjustment procedures and performance
verification procedures for the pattern
generator modules and probes
xvi
TLA7AXX Logic Analyzer Module Service Manual
Contacting Tektronix
Preface
Phone 1-800-833-9200*
Address Tektronix, Inc.
Department or name (if known)
14200 SW Karl Braun Drive
P.O. Box 500
Beaverton, OR 97077
USA
Web site www.tektronix.com
Sales support 1-800-833-9200, select option 1*
Service sup-
port
Technical sup-
port
* 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.
1-800-833-9200, select option 2*
Email: techsupport@tektronix.com
1-800-833-9200, select option 3*
6:00 a.m. -- 5:00 p.m. Pacific time
TLA7AXX Logic Analyzer Module Service Manual
xvii
Preface
xviii
TLA7AXX Logic Analyzer Module Service Manual
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.
H Read the General Safety Summary and Service Safety Summary found at the
beginning of this manual.
When using this manual for servicing follow all warnings and cautions.
Adjustment and Certification Interval
Generally, you should perform the adjustments and certification (calibration)
described in the Performance Verification and Adjustment Procedures chapters in
this manual once per year, or following repairs that affect adjustment or
calibration.
Strategy for Servicing
This manual contains information for corrective maintenance of this product:
H Supports isolation of faults to the failed circuit board or assembly level
shown in the replaceable parts list
H Supports removal and replacement of those boards or assemblies
H Supports removal and replacement of fuses, knobs, chassis, and other
mechanical parts listed in the replaceable parts list
This manual does not support component-level fault isolation and replacement.
TLA7AXX Logic Analyzer Module Service Manual
xix
Introduction
Service Offerings
Tektronix provides service to cover repair under warranty as well as other
services that are designed to meet your specific service needs.
Whether providing warranty repair service or any of the other services listed
below, Tektronix service technicians are well equipped to service the logic
analyzer module.
Warranty Repair Service
Calibration and Repair
Service
Service Options
Service Agreements
Tektronix warrants this product for one year from date of purchase. (The
warranty 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 module.
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.
xx
Service On Demand
Self Service
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.
TLA7AXX Logic Analyzer Module Service Manual
Introduction
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 configuration.
H Model number and serial number
H PowerFlex option upgrade number
H Firmware level
For More Information
Contact your local Tektronix service center or sales engineer for more information on any of the Calibration and Repair Services just described.
TLA7AXX Logic Analyzer Module Service Manual
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Introduction
xxii
TLA7AXX Logic Analyzer Module Service Manual
Specifications
This chapter provides a general description of the TLA7Axx series logic analyzer
modules and the TLACAL2 Performance Verification and Adjustment test
fixture. This chapter also includes a list of specifications for the logic analyzer
module and for the test fixture under Characteristic Tables beginning on
page 1--2.
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.
Some of the key features of the logic analyzer modules include the following:
H Up to 128 data channels and 8 stored clock or qualifier channels per module
H Ability to merge five modules to provide up to 680 data channels with full
clocking and triggering capabilities across all modules
H Software configurable channels, memory depth, and user synchronous speed
(PowerFlex)
H Data correlation with other Tektronix logic analyzer modules in a TLA
mainframe
H Enhanced clocking to minimize skew between the data bus and the system
clock
H Four analog output connectors that send the analog signal of any channel to
an oscilloscope or other modules without requiring additional probe
connections
The logic analyzer acquires data from the target systems through the P68xx
series logic analyzer probes. The following probes are supported:
H P6810 General Purpose Logic Analyzer Probes with flying lead sets. These
probes are designed for most general purpose logic analyzer applications.
H P686x High-Density Logic Analyzer Probes. These probes feature a
connectorless system that connect directly to the target system; no adaptors
or connectors are required.
TLA7AXX Logic Analyzer Module Service Manual
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Specifications
H P6880 High Density Differential Logic Analyzer Probes. These probes also
feature a connectorless system for differential signals.
Refer to the P68xx Logic Analyzer Probe Instruction Manual for complete
information on the P68xx series logic analyzer probes. This document also
contains circuit board design information required for designing the probe
interfaces for the target system.
TLACAL2 Performance Verification and Adjustment Test Fixture Description
The TLACAL2 Performance Verification and Adjustment test fixture is designed
to be used with the TLA7Axx series logic analyzer modules and probes for
performance verification procedures, certification procedures, and adjustment
procedures. These procedures are documented in the Performance Verification
and Adjustment Procedures chapters of this manual.
Characteristic Tables
All specifications listed in this section are guaranteed unless noted Typical.
Specification that are marked with the n symbol are checked either directly or
indirectly in the Performance Verification chapter of this manual. The specifica-
tions apply to all variations of the TLA7Axx series logic analyzer module unless
otherwise noted.
This section also includes specifications for the performance verification test
fixture.
The performance limits under these specifications are valid under the following
conditions:
H The logic analyzer modules must have been calibrated (adjusted) at an
ambient temperature between +20 °C and +30 °C.
H The logic analyzer modules must be in an environment with temperature,
altitude, humidity, and vibration within the operating limits described in
these specifications.
H The logic analyzer must have had a warm-up period of at least 30 minutes.
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TLA7AXX Logic Analyzer Module Service Manual
Table 1- 1: Input parameters (with probes)
Characteristic Description
Specifications
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. Each probe has four threshold settings,
one for each of the clock/qualifier channels and one per group of 16 data channels.
n Channel to channel skew ≤400 ps
Channel to channel skew (Typical) ≤300 ps
Sample uncertainty
Asynchronous Sample period
Synchronous 125 ps
Minimum slew rate (Typical) 0.2 V/ns
Input voltage range -- 2 . 5 V t o + 5 V
Maximum operating voltage swing 6.0 V peak-to-peak
Probe overdrive
Single ended probes ±150 mV or ±25% of signal swing minimum required beyond threshold, whichever
one is greater
Differential probes V
pos
-- V
neg
is ≥ 150mV
p-p
Maximum nondestructive input signal to probe ±15 V
Minimum input pulse width (single channel)
(Typical)
P6860 and P6880 probes 500 ps
P6810 probes 750 ps
Delay time from probe tip to input probe
For P6880 High Density Probe: 7.7 ns ±60 ps
connector (Typical)
Table 1- 2: Analog output
Characteristic Description
Number of outputs Four analog outputs regardless of the module channel width. Any four of the module’s
channels can be mapped to the four Analog outputs.
Attenuation 10X mode for normal operation
5X mode for small signals (--1.5 V to +2.5 V)
Bandwidth (Typical) 2GHz
Accuracy (gain and offset)
±(50 mV + 2% of signal amplitude)
(Typical)
TLA7AXX Logic Analyzer Module Service Manual
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Specifications
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Table 1- 3: Channel width and depth
Characteristic Description
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
Table 1- 4: Clocking
Characteristic Description
Asynchronous clocking
n Internal sampling period 500 ps to 50 ms in a 1--2--5 sequence. Storage control can be used to only store data
when it has changed (transitional storage)
2 ns minimum for all channels
1 ns minimum for half channels (using 2:1 Demul tiplex mode)
0.5 ns minimum for quarter channels (using 4:1 Demultiplex mode)
n Minimum recognizable word
(across all channels)
1
Channel-to-channel skew + sample uncertainty
Example for a P6860 high-density probe anda2nssampleperiod:
400 ps + 2 ns = 2.4 ns
Synchronous clocking
ster
nnels
nnels
32+2 module 2
64+4 module 4
96+6 module 4
128+8 module 4
ergeds
(64+4 channel modules and 32+2 channel
modules
nnot be merged.)
nnels
nnels
96+6 module 4
128+8 module 4
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TLA7AXX Logic Analyzer Module Service Manual
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