Tektronix TLA7NAx, TLA7ABx, TLA7AAx Service Manual
Service Manual
Tektronix Logic Analyzer Module
(TLA7AAx, TLA7ABx & TLA7NAx)
071-1511--00
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 patent s, 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 defec tive during this
warranty period, Tektronix, at its option, either 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 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 dam age
resulting from attempts by personnel other tha n Tektronix representatives to i nstall, 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 tha t 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
Operating Information
General Safety Summary vii...................................
Service Safety Summary ix....................................
Manual Structure xi................................................
Manual Conventions xii..............................................
Related Manuals xiv.................................................
Contacting Tektronix xv.............................................
Introduction xvii..............................................
Adjustment and Certification Interval xvii................................
Strategy for Servicing xvii.............................................
Service Offerings xviii................................................
Warranty Repair Service xviii.......................................
Calibration and Repair Service xviii..................................
Service Options xviii..............................................
Service Agreements xviii...........................................
Service On Demand xviii...........................................
Self Service xix.................................................
For More Information xix.........................................
Theory of Operation
Installation 2--1.....................................................
Logical Address 2--1.............................................
Merged Modules 2--2.............................................
Module Installation 2--2..........................................
Software Installation 2--4.............................................
Operating Information 2--4............................................
Front Panel 2--4..................................................
Merge Cable Connectors 2--6.......................................
Rear Panel 2--7..................................................
Online Help 2--7.................................................
Diagnostics 2--7.................................................
Self Calibration 2--8..............................................
Menu Overview 2--8..............................................
Merged Modules 2--10................................................
Merging Rules 2--10...............................................
Merge Procedure 2--11.............................................
Unmerge Procedure 2--15...........................................
Block Level Description 3--1...........................................
Local Processor Unit (LPU) Board 3--1..................................
Processor System 3--1.............................................
Communications Interface 3--2.....................................
Power Supplies 3--2..............................................
TLA7AXX/TLA7NAX Logic Analyzer Module Service Manual
i
Table of Contents
Acquisition Board 3--2................................................
Probes 3--4.........................................................
Merged Modules 3--5.................................................
Memory Erasure 3--5.................................................
Performance Verification
Functional Verification 4--1............................................
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...........................................
Test Equipment 4--2..............................................
Setup 4--2......................................................
Module Self Tests and Power-On Diagnostics 4--2......................
Logic Analyzer Module Functional Verification Procedure 4--3............
Probe Functional Verification 4--3...................................
Adjustment Procedures
Maintenance
Self Calibration 5--1.............................................
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 P6864, P6880, P6960, and P6980 Compression Footprints 6--6.....
Cleaning the P6864, and P6880 Probe Heads 6--6..........................
Cleaning the P69xx Probe Heads 6--8....................................
Storing the P68xx Probe Heads 6--9.....................................
Storing the P69xx Probe Heads 6--10.....................................
Removal and Installation Procedures 6--11.........................
Tools Required 6--11..................................................
Torque Requirements 6--11.............................................
Injector/Ejector Handles 6--12...........................................
Removal 6--12....................................................
Installation 6--13..................................................
Covers 6--13.........................................................
Removal 6--13....................................................
Installation 6--15..................................................
ii
TLA7AXX/TLA7NAX Logic Analyzer Module Service Manual
Table of Contents
Local Processor Unit Board 6--18.......................................
Removal 6--18....................................................
Installation 6--19.................................................
Acquisition Board 6--21................................................
Removal 6--21....................................................
Installation 6--24..................................................
Fuses 6--25..........................................................
Front and Rear EMI Gaskets 6--25.......................................
Removal 6--25....................................................
Installation 6--26..................................................
Side EMI Gaskets 6--26................................................
Troubleshooting 6--27..........................................
Service Level 6--27...................................................
Required Documentation 6--28..........................................
Check for Common Problems 6--28......................................
Eliminate Other Problem Sources 6--30...................................
Substitute a Good Module 6--30......................................
Probe-Level Troubleshooting 6--30...................................
Troubleshoot the Logic Analyzer Module 6--31.............................
Equipment Required 6--31..........................................
Preparation 6--31..................................................
Calibration and Diagnostic Procedures 6--31............................
Fault Isolation Procedure 6--33......................................
Primary Troubleshooting Chart 6--34..................................
Diagnostics Table 6--35............................................
Adjustment After Repair 6--37..........................................
Updating or Restoring the Logic Analyz er Firmware 6--37...................
Overview of Procedures 6--39...........................................
Repackaging Instructions 6--41..................................
Packaging 6--41......................................................
Shipping to the Service Center 6--41......................................
Storage 6--42........................................................
Options
TLA7AA1, TLA7AA2, TLA7AA3 and TLA7AA4 Options 7--1..............
TLA7AB2 and TLA7AB4 Options 7--2..................................
TLA7NAX Options 7--2..............................................
Service Options 7--3..................................................
Electrical Parts List
Diagrams
Mechanical Parts List
Parts Ordering Information 10-- 1.........................................
Using the Replaceable Parts List 10--2....................................
Abbreviations 10--2...............................................
Mfr. Code to Manufacturer Cross Index 10--2...........................
TLA7AXX/TLA7NAX Logic Analyzer Module Service Manual
iii
Table of Contents
List of Figures
Figure 2--1: Logical address switches 2--2..........................
Figure 2--2: Installing modules in the mainframe 2--3...............
Figure 2--3: Front panel of the TLA7Axx and TLA7NAx logic
analyzer module 2--5.......................................
Figure 2--4: Merge connector on a TLA7Axx (shown in the extended
position) 2--6..............................................
Figure 2--5: Rear panel controls and connectors 2--7................
Figure 2--6: Location of modules in a merged system 2--11............
Figure 2--7: Removing the merge connector assembly from the
module 2--12...............................................
Figure 2--8: Connecting the logic analyzer modules together 2--13......
Figure 2--9: Installing the merged module set in the mainframe 2--14...
Figure 6--1: Cleaning the probe heads 6--7.........................
Figure 6--2: Cleaning the P69xx probe heads 6--8...................
Figure 6--3: Storing the probe head 6--9...........................
Figure 6--4: Storing the P69xx probe heads 6--10....................
Figure 6--5: Injector/ejector handle replacement 6--12................
Figure 6--6: Removing the merge cable bracket from the cover 6--14....
Figure 6--7: Cover removal 6--15..................................
Figure 6--8: Installing the cover onto the chassis 6--16................
Figure 6--9: Seating the cover on the chassis 6--17....................
Figure 6--10: LPU board removal 6--19.............................
Figure 6--11: Inserting LPU board tabs into front subpanel 6--20.......
Figure 6--12: Remove the single screw from the merge cable bracket 6--21
Figure 6--13: Removing the merge cable assembly 6--22...............
Figure 6--14: Removing the acquisition board from the chassis 6--23....
Figure 6--15: Rear EMI gasket removal 6--25........................
Figure 6--16: Rear EMI gasket replacement 6--26....................
Figure 6--17: Primary troubleshooting chart 6--34...................
Figure 9--1: TLA7AAx logic analyzer block diagram 9--2............
Figure 9--2: TLA7NAx logic analyzer block diagram 9--3............
Figure 10--1: TLA7AAX, TLA7ABX, and TLA7NAX Logic Analyzer
Module exploded view 10--4..................................
iv
TLA7AXX/TLA7NAX Logic Analyzer Module Service Manual
List of Tables
Table of Contents
T able 6--1: External inspection check list 6--3......................
T able 6--2: Internal inspection checklist 6--4.......................
Table 6--3: Tools required for circuit board replacement 6--11.........
Table 6--4: Failure symptoms and possible causes 6--29...............
Table 6--5: Diagnostic tests 6--35..................................
Table 6--6: Requirements after replacement 6--37....................
Table 6--7: Troubleshooting overview 6--39.........................
Table 7--1: TLA7AA1, TLA7AA2, TLA7AA3 and TLA7AA4 options 7--1
Table 7--2: TLA7AB2 and TLA7AB4 options 7--2..................
Table 7--3: TLA7NAx options 7--2...............................
TLA7AXX/TLA7NAX Logic Analyzer Module Service Manual
v
Table of Contents
vi
TLA7AXX/TLA7NAX 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/TLA7NAX Logic Analyzer Module Service Manual
vii
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:
viii
CAUTION
Refer to Manual
TLA7AXX/TLA7NAX 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/TLA7NAX Logic Analyzer Module Service Manual
ix
Service Safety Summary
x
TLA7AXX/TLA7NAX 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 functional verification procedures for
the logic analyzer module and logic analyzer module probes.
H Adjustment Procedures contains the self calibration 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 instruc-
tions 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/TLA7NAX Logic Analyzer Module Service Manual
xi
Preface
Manual Conventions
This manual uses certain conventions that you should be familiar with before
attempting service.
Acquisition Board
Adjustment Procedures
Certification Procedures
Functional Verification
Procedures
LPU Board
The acquisition board is one of the circuit boards inside the logic analyzer
module. The circuit board receives and stores acquisition data from the probes
and works with the local processor unit (LPU) board to provide logic analysis
information to the operator of the logic analyzer.
Adjustment procedures check for, and if necessary, correct any adjustment errors
discovered when performing functional or performance verification procedures.
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.
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
Modules
xii
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/TLA7NAX Logic Analyzer Module Service Manual
Preface
P6960 Logic Analyzer
Probe
P6980 Logic Analyzer
Probe
P6810 General Purpose
Logic Analyzer Probe
The P6960 is a 34 channel single-ended high-density logic analyzer probe with
D-Maxt probing technology. The P6960 is optimized for applications that
require the highest-density footprint for single-ended signals. The probe has<0.5
pF typical capacitance and can connect to circuit boards with thicknesses from
0.050 to 0.250 inches and supports HASL (hot air solder level), immersion gold,
and immersion silver board surface finishes. This probe is for use with
TLA7Axx/TLA7NAx logic analyzer modules.
The P6980 is a 34 channel differential high-density logic analyzer probe with
D--Maxt probing technology. The P6980 is optimized for applications that
require the highest density footprint for differential signals. The probe has
<0.5 pF typical capacitance and can connect to circuit boards with thicknesses
from 0.050 to 0.250 inches and supports HASL (hot air solder level), immersion
gold, and immersion silver board surface finishes. This probe is for use with
TLA7Axx/TLA7NAx logic analyzer modules.
This is a 34-channel general purpose probe used with the TLA7Axx/TLA7NAx
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.
P6880 Differential Probe
P6860 High Density Probe
Performance Verification
Procedures
Replaceable Parts
This is a 34-channel differential probe used with the TLA7Axx/TLA7NAx 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/TLA7NAx
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.
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.
TLA7AXX/TLA7NAX Logic Analyzer Module Service Manual
xiii
Preface
Safety
Symbols and terms related to safety appear in the Safety Summary found at the
beginning of this manual.
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
xiv
TLA7AXX/TLA7NAX 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 support
Technical support
* 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/TLA7NAX Logic Analyzer Module Service Manual
xv
Preface
xvi
TLA7AXX/TLA7NAX 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
It is recommended that you have a qualified Tektronix Service Center technician
perform adjustment and certification (calibration) procedures annually 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/TLA7NAX Logic Analyzer Module Service Manual
xvii
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.
xviii
Service On Demand
Tektronix also offers calibration and repair services on a “per-incident” basis that
is available with standard prices for many products.
TLA7AXX/TLA7NAX Logic Analyzer Module Service Manual
Introduction
Self Service
For More Information
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 configuration.
H Model number and serial number
H PowerFlex option upgrade number
H Firmware level
Contact your local Tektronix service center or sales engineer for more information on any of the Calibration and Repair Services just described.
TLA7AXX/TLA7NAX Logic Analyzer Module Service Manual
xix
Introduction
xx
TLA7AXX/TLA7NAX Logic Analyzer Module Service Manual
Specifications
Refer to the Tektronix logic Analyzer Family Product Specifications document
for a complete list of specifications for the TLA700 series logic analyzer
products. This document is available on the Tektronix Logic Analyzer Family
Product Documentation CD or can be downloaded from the Tektronix Web site.
TLA7AXX/TLA7NAX Logic Analyzer Module Service Manual
1- 1
Specifications
1- 2
TLA7AXX/TLA7NAX Logic Analyzer Module Service Manual
Operating Information
This chapter provides a high-level overview of installation instructions and
operating information for the logic analyzer module. The operating information
is limited to the functions you need to perform the procedures found in this
document. You can find detailed operating instructions in the Tektronix Logic
Analyzer Family User Manual and in the online help.
Installation
The Tektronix Logic Analyzer Installation Manual provides detailed installation
instructions for the logic analyzer module and the mainframes. This section
contains a summary of those installation procedures.
Logical Address
Every plug-in module in the logic analyzer must have a unique logical address;
no two modules can have the same address. Two rotary switches on rear panel
select the logical address (see Figure 2--1 for the switch locations). When
servicing the logic analyzer module, you should have no need for changing the
address. However, in most cases the switches should be set to FF, the factory
default setting to enable dynamic auto configuration.
NOTE. Do not set the logic analyzer module logical address to 00. Logical
address 00 is reserved for the controller.
Dynamic Autoconfiguration With Dynamic Auto Configuration (recommended)
selected (hexadecimal FF or decimal 255), the logic analyzer automatically sets
the address to an unused value. For example, if there are modules set to
addresses 01 and 02 already in your system, the resource manager will automatically assign the logic analyzer module an address other than 01 or 02.
Static Logical Address Static logical address selections set the address to a fixed
value. A static logical address ensures that the logic analyzer module address
remains fixed for compatibility with modules that require a specific address
value. Remember that each module within the logic analyzer must have a unique
address to avoid communication problems.
TLA7AXX/TLA7NAX Logic Analyzer Module Service Manual
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Operating Information
Least-significant
digit
Most-significant
digit
Merged Modules
Module Installation
Figure 2- 1: Logical address switches
You can combine up to five logic analyzer modules to create a single module that
operates off a single time base. This process is called merging modules. The
procedures for merging modules is described under Merged Modules beginning
on page 2--10.
Install the modules in a mainframe before applying power to the mainframe.
Before installing the modules, determine if you want to merge the modules. You
must physically connect the module together before installing them in the
mainframe.
Slide the module all of the way into the mainframe. Use the injector/ejector
handles to seat the module and then hold the modules in place by tightening the
retaining screws (see Figure 2--2 on page 2--3). If you are installing merged
modules, slide them into the mainframe as a group and then seat them in place
individually.
For more detailed information on installing modules, refer to TLA700 Series
Installation Manual.
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TLA7AXX/TLA7NAX Logic Analyzer Module Service Manual
Operating Information
Portable mainframe Benchtop mainframe
Retaining screws
Injector/ejector handles
Figure 2- 2: Installing modules in the mainframe
TLA7AXX/TLA7NAX Logic Analyzer Module Service Manual
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Operating Information
Software Installation
Operating Information
The logic analyzer module operation is controlled by the Tektronix logic
analyzer application software located on the hard disk of the mainframe. This
software is installed when you purchased your logic analyzer or when you
upgrade the software through one of the TLA7UP Field Upgrade Kit options.
The logic analyzer module contains firmware which may need to be upgraded to
function with the latest system software version; the firmware upgrade procedure
is provided with the TLA7UP Field Upgrade Kit. The procedure is also
described in this manual under Updating or Restoring the Logic Analyzer
Firmware beginning on page 6--37.
This section provides a high-level overview of the controls and connectors of the
logic analyzer module. It provides a high-level overview of the logic analyzer
user interface and software.
Front Panel
Figure 2--3 shows the connectors and indicators on the front panel of a 136-channel logic analyzer module. Modules with fewer channels look and operate the
same, but without the additional probe connectors.
Injector/Ejector Handles. The injector/ejector tabs are used to seat and unseat the
modules in the mainframe.
READY Indicator. The READY indicator lights continuously after the logic
analyzer module successfully completes the power-on process. If the indicator
fails to light within five seconds of power-on, an internal module failure may be
present.
ACCESSED Indicator. The ACCESSED indicator lights anytime the controller
accesses the logic analyzer module.
ARM’D Indicator. The ARM’D indicator lights when the logic analyzer module is
armed during an acquisition.
TRIG’D Indicator. The TRIG’D indicator lights when the logic analyzer module
triggers and stays on until the module finishes acquiring data.
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TLA7AXX/TLA7NAX Logic Analyzer Module Service Manual
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