Tektronix TLA 720 Service Manual
Service Manual
TLA 720
Benchtop Controller
071-0269-01
TLA 720
Benchtop Controller
*P071026901*
071026901
Service Manual
TLA 720
Benchtop Controller
071-0269-01
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.
Copyright © T ektronix, Inc. All rights reserved.
T ektronix 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.
T ektronix, Inc., 14200 SW Karl Braun Drive, Beaverton, OR 97077
TEKTRONIX and TEK are registered trademarks of T ektronix, Inc.
MagniVu and PowerFlex are registered trademarks of Tektronix, Inc.
HARDWARE WARRANTY
T ektronix 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 this warranty period, T ektronix,
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 T ektronix, with shipping charges prepaid.
T ektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the
T ektronix 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. T ektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting
from attempts by personnel other than T ektronix 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-T ektronix 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 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
REP AIR 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.
SOFTWARE WARRANTY
Tektronix warrants that the media on which this software product is furnished and the encoding of the programs on the
media will be free from defects in materials and workmanship for a period of three (3) months from the date of shipment.
If a medium or encoding proves defective during the warranty period, T ektronix will provide a replacement in exchange
for the defective medium. Except as to the media on which this software product is furnished, this software product is
provided “as is” without warranty of any kind, either express or implied. T ektronix does not warrant that the functions
contained in this software product will meet Customer’s requirements or that the operation of the programs will be
uninterrupted or error-free.
In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the
warranty period. If T ektronix is unable to provide a replacement that is free from defects in materials and workmanship
within a reasonable time thereafter, Customer may terminate the license for this software product and return this software
product and any associated materials for credit or refund.
THIS WARRANTY 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
REPLACE DEFECTIVE MEDIA OR REFUND CUSTOMER’S PAYMENT 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
Preface v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual Structure v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual Conventions v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contacting Tektronix vi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Safety Summary vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Safety Summary ix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction xi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Strategy for Servicing xi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Offerings xii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Product Description 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Characteristics T ables 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Certifications and Compliances 1–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Panel Components 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main Memory 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Communications Ports 2–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input/Output Connectors 2–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Internal Components 2–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating System and Application Interface 2–6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostics 2–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Theory of Operation
Controller 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mass Storage 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance
Preventing ESD 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Cleaning 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal and Installation Procedure 4–5. . . . . . . . . . . . . . . . . . . . . . . . . . .
Preparation 4–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T ools Required 4–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Benchtop Controller Service Overview 4–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replaceable Modules 4–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing the Replaceable Hard Disk Drive 4–7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing the Hard Disk Drive From The Cartridge 4–9. . . . . . . . . . . . . . . . . . . . .
Injector/Ejector Handles 4–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Benchtop Controller Cover 4–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Button Battery 4–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main Memory 4–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hard Drive Interface Board 4–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TLA 720 Benchtop Controller Service Manual
i
Table of Contents
CD ROM Drive 4–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Processor Board and Interface Board 4–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Floppy Disk Drive 4–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Soldered-On Connectors 4–21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fixed Hard Disk Drive Replacement 4–23. . . . . . . . . . . . . . . . . . . . . . . . . . .
Preparation 4–23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T ools Required 4–24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing the Replaceable Hard Disk Drive 4–24. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remove the Benchtop Controller Cover 4–26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remove the Hard Drive Interface Board 4–27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Install the Fixed Hard Disk Drive 4–28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Install the Hard Drive Interface Board 4–29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Install the Benchtop Controller Cover 4–30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Verify Operation 4–31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 4–33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Level 4–33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check for Common Problems 4–34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Eliminate Other Problem Sources 4–36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshoot the Benchtop Controller Module 4–36. . . . . . . . . . . . . . . . . . . . . . . . . .
Isolating System Problems 4–40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BIOS Error Messages 4–43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustment After Repair 4–46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TLA 700 Startup Sequence 4–46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mainframe Troubleshooting 4–49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostics 4–49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Software Problems 4–50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hardware Problems 4–50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check for Common Problems 4–51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TLA 700 Startup Sequence 4–54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Isolating System Problems 4–56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expansion Mainframe Troubleshooting 4–59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repackaging Instructions 4–61. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Packaging 4–61. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shipping to the Service Center 4–61. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options
T ektronix Service Options 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Accessories 5–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagrams .
Interconnection Block Diagram 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replaceable Mechanical Parts
Standard Accessories 7–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Accessories 7–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Ordering Information 7–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Replaceable Parts List 7–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Index
ii
TLA 720 Benchtop Controller Service Manual
List of Figures
Table of Contents
Figure 2–1: Front view of the Benchtop Controller 2–2. . . . . . . . . . . . . . .
Figure 4–1: Depress the latch 4–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–2: Unlatching the hard disk drive cartridge 4–8. . . . . . . . . . . . .
Figure 4–3: Removing the hard disk drive cartridge 4–8. . . . . . . . . . . . . .
Figure 4–4: Removing the hard disk drive from the cartridge 4–9. . . . . .
Figure 4–5: Removal and installation of the ejectors 4–10. . . . . . . . . . . . . .
Figure 4–6: Removal and installation of the cover 4–11. . . . . . . . . . . . . . . .
Figure 4–7: Seating the cover on the chassis 4–12. . . . . . . . . . . . . . . . . . . . .
Figure 4–8: Removal and installation of the memory 4–13. . . . . . . . . . . . .
Figure 4–9: Removing the hard drive interface board 4–15. . . . . . . . . . .
Figure 4–10: Remove screws from the CD ROM bracket 4–16. . . . . . . . . .
Figure 4–11: Removal and installation of the front panel hardware 4–17.
Figure 4–12: Removing the processor and interface boards 4–18. . . . . . . .
Figure 4–13: Separating the processor and interface boards 4–19. . . . . . .
Figure 4–14: Unlatching the hard disk drive cartridge 4–24. . . . . . . . . . . .
Figure 4–15: Grasp the hard disk drive cartridge 4–25. . . . . . . . . . . . . . . .
Figure 4–16: Removing the hard disk drive cartridge 4–25. . . . . . . . . . . . .
Figure 4–17: Removal and installation of the cover 4–26. . . . . . . . . . . . . . .
Figure 4–18: Removing the hard drive interface board 4–27. . . . . . . . . . .
Figure 4–19: Master drive/slave drive jumper location 4–28. . . . . . . . . . . .
Figure 4–20: Installing the fixed hard disk drive 4–28. . . . . . . . . . . . . . . . .
Figure 4–21: Installing the hard drive interface board 4–29. . . . . . . . . . . .
Figure 4–22: Seating the cover on the chassis 4–30. . . . . . . . . . . . . . . . . . . .
Figure 4–23: Primary troubleshooting tree 4–39. . . . . . . . . . . . . . . . . . . . . .
Figure 4–24: ResMan32 program output 4–42. . . . . . . . . . . . . . . . . . . . . . .
Figure 4–25: TLA 700 startup sequence 4–47. . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–26: TLA 700 startup sequence 4–55. . . . . . . . . . . . . . . . . . . . . . . .
Figure 4–27: ResMan32 program output 4–58. . . . . . . . . . . . . . . . . . . . . . .
Figure 6–1: Interconnection block diagram 6–1. . . . . . . . . . . . . . . . . . . . .
Figure 6–2: Benchtop chassis block diagram 6–2. . . . . . . . . . . . . . . . . . .
Figure 7–1: Benchtop controller exploded view 7–6. . . . . . . . . . . . . . . . . .
Figure 7–2: Benchtop controller exploded view (cont.) 7–8. . . . . . . . . . . .
TLA 720 Benchtop Controller Service Manual
iii
Table of Contents
List of Tables
Table 1–1: Benchtop controller characteristics 1–1. . . . . . . . . . . . . . . . . .
Table 1–2: Benchtop controller mechanical characteristics 1–3. . . . . . . .
Table 1–3: Benchtop mainframes external signal interface
characteristics 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–4: Benchtop mainframes backplane interface
characteristics 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–5: Electromagnetic compatibility (EMC) characteristics 1–5. . .
Table 1–6: Atmospheric characteristics 1–6. . . . . . . . . . . . . . . . . . . . . . . .
Table 1–7: Dynamic characteristics 1–6. . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–8: Certifications and compliances 1–7. . . . . . . . . . . . . . . . . . . . . .
Table 2–1: USB pin assignments 2–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 2–2: SVGA OUT pin assignments 2–4. . . . . . . . . . . . . . . . . . . . . . .
Table 2–3: LPT (parallel interface) pin assignments 2–5. . . . . . . . . . . . .
Table 4–1: External inspection check list 4–2. . . . . . . . . . . . . . . . . . . . . . .
Table 4–2: Internal inspection check list 4–3. . . . . . . . . . . . . . . . . . . . . . .
Table 4–3: Tools required 4–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 4–4: Signal wire identification 4–19. . . . . . . . . . . . . . . . . . . . . . . . . .
Table 4–5: Tools required 4–24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 4–6: Failure symptoms and possible causes 4–34. . . . . . . . . . . . . . . .
Table 4–7: TLA 700 Power-on diagnostic tests 4–38. . . . . . . . . . . . . . . . . .
Table 4–8: Command line options for ResMan32 4–41. . . . . . . . . . . . . . . .
Table 4–9: BIOS error codes and explanations 4–43. . . . . . . . . . . . . . . . . .
Table 4–10: Failure symptoms and possible causes 4–51. . . . . . . . . . . . . . .
Table 4–11: Command line options for ResMan32 4–56. . . . . . . . . . . . . . .
Table 5–1: Options 5–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 7–1: Standard accessories 7–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 7–2: Standard accessories 7–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 7–3: Parts lists column descriptions 7–4. . . . . . . . . . . . . . . . . . . . . .
iv
TLA 720 Benchtop Controller Service Manual
Preface
Manual Structure
Manual Conventions
This is the service manual for the TLA 720 Benchtop Controller. Read this
preface to learn how this manual is structured, what conventions it uses, and
where you can find other information related servicing this product.
Read the Introduction, which follows this preface, for safety and other important
background information needed before using this manual for servicing this
product.
This manual is divided into chapters, which are made up of related subordinate
topics. These topics can be cross referenced as sections.
Be sure to read the introductions to all procedures. These introductions provide
important information needed to do the service correctly, safely, and efficiently.
Modules
Benchtop Controller
Benchtop Chassis
Benchtop Mainframe
Expansion Mainframe
This manual uses certain conventions that you should become familiar with
before attempting service.
Throughout this manual, the term “module” refers to a TLA 700 Series Logic
Analyzer, DSO, or Benchtop Controller that mounts inside a TLA 700 Series
Benchtop Chassis. A module is composed of circuit cards, replaceable parts,
interconnecting cables, and a user-accessible front panel.
A benchtop controller is a TLA 711 or TLA 720 Color Benchtop Controller. The
benchtop controller is a module that is installed in the benchtop chassis.
A benchtop chassis is a TLA 711 or TLA 720 Color Benchtop Chassis that the
benchtop controller module plugs into.
A benchtop mainframe is a benchtop chassis with a benchtop controller installed.
An expansion mainframe is a TLA 7XM expansion chassis with a TLA 7XM
expansion module installed.
TLA 720 Benchtop Controller Service Manual
v
Preface
Replaceable Parts
Safety
Contacting Tektronix
This manual refers to any field-replaceable assembly or mechanical part
specifically by its name or generically as a replaceable part. In general, a (field)
replaceable part is any assembly that is listed in the replaceable parts list of
Chapter 10. Also, see Strategy for Servicing on page xi.
Symbols and terms related to safety appear in the General Safety Summary found
at the beginning of this manual.
Product
Support
Service
Support
For questions about using Tektronix measurement products, call
toll free in North America:
1-800-TEK-WIDE (1-800-835-9433 ext. 2400)
6:00 a.m. – 5:00 p.m. Pacific time
Or contact us by e-mail:
tm_app_supp@tek.com
For product support outside of North America, contact your
local Tektronix distributor or sales office.
Tektronix offers extended warranty and calibration programs as
options on many products. Contact your local Tektronix
distributor or sales office.
For other
information
To write us
Website
For a listing of worldwide service centers, visit our web site.
In North America:
1-800-TEK-WIDE (1-800-835-9433)
An operator will direct your call.
Tektronix, Inc.
14200 SW Karl Braun Drive
Beaverton, OR 97077
USA
Tektronix.com
vi
TLA 720 Benchtop Controller 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.
To Avoid Fire or
Personal Injury
Connect and Disconnect Properly . Do not connect or disconnect probes or test
leads while they are connected to a voltage source.
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
grounded.
Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings
and marking 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.
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.
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.
TLA 720 Benchtop Controller Service Manual
vii
General Safety Summary
Symbols and Terms
T erms 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.
T erms 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 symbols may appear on the product:
WARNING
High Voltage
Protective Ground
(Earth) T erminal
CAUTION
Refer to Manual
Double
Insulated
viii
TLA 720 Benchtop Controller 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, disconnect the main power by means
of the power cord or, if provided, the power switch.
Use Care When Servicing With Power On. Dangerous voltages or currents may
exist in this product. Disconnect power, remove battery (if applicable), and
disconnect test leads before removing protective panels, soldering, or replacing
components.
To avoid electric shock, do not touch exposed connections.
TLA 720 Benchtop Controller Service Manual
ix
Service Safety Summary
x
TLA 720 Benchtop Controller Service Manual
Introduction
Strategy for Servicing
This manual contains information needed to properly service the benchtop
controller. This introduction contains information critical to safe and effective
servicing of the benchtop controller.
To prevent personal injury or damage to the benchtop controller, consider the
following requirements before attempting service:
H The procedures in this manual should be performed only by a qualified
service person.
H Read the General Safety Summary and Service Safety Summary found at the
beginning of this manual.
H Read the Preface beginning on page v.
H Read Operating Information beginning on page 2–1.
When using this manual for servicing, be sure to follow all warnings, cautions,
and notes.
This manual supports and contains all the information needed for periodic
maintenance of the benchtop controller. This manual does not support component-level fault isolation and replacement.
This manual also supports and 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 of Chapter 10.
H Supports removal and replacement of those boards or assemblies.
H Supports removal and replacement of fuse, knobs, chassis, and other
mechanical parts listed in the replaceable parts list.
TLA 720 Benchtop Controller Service Manual
xi
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 equipped to service the benchtop
controller. Services are provided at Tektronix Services Centers and on-site at
your facility, depending on your location.
Warranty Repair Service
Repair or Calibration
Service
At Depot Service
Self Service
Tektronix warrants this product for one year from date of purchase. Tektronix
technicians provide warranty service at most Tektronix service locations
worldwide. The Tektronix product catalog lists all service locations worldwide.
The following services can be purchased to tailor repair and/or calibration of the
benchtop controller to fit your requirements.
Tektronix offers several standard-priced adjustment (calibration) and repair
services:
H A single repair and/or adjustment.
H Calibrations using equipment and procedures that meet the traceability
standards specific to the local area.
H Annual maintenance agreements that provide for repair of the benchtop
controller.
Of these services, the annual maintenance agreement offers a particularly
cost-effective approach to service for many owners of the benchtop controller.
Tektronix supports repair to the replaceable-part level by providing module
exchange.
xii
TLA 720 Benchtop Controller Service Manual
Specifications
Specifications
Product Description
Characteristics Tables
This chapter provides a brief product description, specifications and characteristics of the TLA 720 Color Benchtop Controller.
The TLA 720 Color Benchtop Controller is a high-performance personal
computer based controller that installs in the color benchtop chassis.
This section lists only the specifications that are useful for servicing. All
specifications listed here should be considered “typical”. Typical characteristics
describe typical or average performance and provide useful reference information.
Refer to Appendix A of the TLA 700 Series Logic Analyzer User Manual for a
complete listing of all specifications.
Table 1–1 lists the characteristics of the TLA 720 Color Benchtop Controller.
T able 1–1: Benchtop controller characteristics
Characteristic Description
Operating System Microsoft Windows 98
Microprocessor 266 MHz Intel Pentium with MMX
Main Memory
Maximum Installed Configuration 128 MB (Two 64 MB SO DIMMs)
Style 144 Pin SO DIMM
Speed 60 ns
Cache Memory 512 Kbyte, level 2 (L2) write-back cache
Flash BIOS 512 Kbyte
Real-Time Clock and CMOS Setups NVRAM
(Typical)
Real-Time clock/calendar, with typical 10-year life.
Standard and advanced PC CMOS setups.
TLA 720 Benchtop Controller Service Manual
1–1
Specifications
T able 1–1: Benchtop controller characteristics (cont.)
Characteristic Description
Bootable Replaceable Hard Disk Drive Standard PC compatible IDE (Integrated device Electronics) hard disk drive residing on
an EIDE interface.
Size MIN 2.1 GByte
MAX 6.4 GByte
Continually subject to change due to the fast-moving PC component environment.
These storage capacities valid at product introduction.
Interface ATA -4/Enhanced IDE (EIDE)
Average seek time Read 13 ms
I/O data-transfer rate 33.3 MB/s max (U-DMA mode 2)
Floppy Disk Drive Standard 3.5 inch, 1.44 Mbyte, double-sided, PC-compatible high-density floppy disk
drive
CD ROM Drive 24X, Standard PC Compatible
Continually subject to change due to the fast-moving PC component environment.
Valid at product introduction.
Display Classification Standard PC graphics accelerator technology (bitBLT based) capable of driving
external color VGA, SVGA, or XGA monitors.
Display Memory 2 MB
Display Drive One VGA, SVGA, or XGA compatible analog output port.
Display Size User selected via Windows 98
Resolution (Pixels) Colors DDC1
640 x 480 256 yes
640 x 480 64,000 yes
640 x 480 16,800,000 no
800 x 600 256 yes
800 x 600 64,000 yes
1024 x 768 256 yes
1280 x 1024 256 yes
1600 x 1200 256 yes
SVGA Output Port
(SVGA)
Dual USB Ports Two USB Ports
Mouse Port PS2 compatible pointing device port
Keyboard Port PS2 compatible keyboard port
The SVGA port utilizing a 15-pin sub-D SVGA connector. Compliant with EIA RS 343A.
Parallel Interface Port
(LPT)
Serial Interface Port
(COM)
1–2
Parallel interface port supports standard Centronics mode, Enhanced Parallel Port
(EPP), or Microsoft high-speed mode (ECP) and utilizes a 36-pin high-density
connector.
The serial port utilizing a 9-pin male sub-D connector to support an RS232 serial port.
Compliant with EIA/TIA 574.
TLA 720 Benchtop Controller Service Manual
Specifications
T able 1–1: Benchtop controller characteristics (cont.)
Characteristic Description
Card Bus 32 Standard Type I and II PC compatible PC card slot. Compliant with PCMCIA and
JEDIA 4.1
Type I, II, and III PCMCIA PC Card Port Standard Type I, II, and III PC compatible PC card slot. Compliant with PCMCIA and
JEDIA 4.1
Table 1–2 lists the benchtop controller mechanical characteristics.
T able 1–2: Benchtop controller mechanical characteristics
Characteristic Description
Weight 5 lb. 3 oz. (2.34 kg)
Size Three slot-wide
Overall dimensions
Height 10.32 in (262 mm)
Width 3.6 in (78 mm)
Depth 14.7 in (373 mm)
Table 1–3 lists the external signal interface characteristics for the benchtop
mainframe.
T able 1–3: Benchtop mainframes external signal interface characteristics
Characteristic Description
System Trigger Input TTL compatible input via rear panel mounted BNC connectors (portable mainframe) or
front panel mounted SMB connectors (benchtop mainframe).
Input Levels
V
IH
V
IL
Input Mode Falling edge sensitive, latched (active low)
Minimum Pulse Width 12 ns
Active Period Accepts system triggers during valid acquisition periods via real-time gating, resets
Maximum Input Voltage 0 to +5 Volt peak
TTL compatible input.
≥ 2.0 V
≤ 0.8 V
system trigger input latch between valid acquisition periods.
TLA 720 Benchtop Controller Service Manual
1–3
Specifications
T able 1–3: Benchtop mainframes external signal interface characteristics (cont.)
Characteristic Description
External Signal Input TTL compatible input via rear panel mounted BNC connectors (portable mainframe) or
front panel mounted SMB connectors (benchtop mainframe).
Input Destination Signal 1, 2, 3, 4
Input Levels
V
IH
V
IL
Input Mode Active (true) low, level sensitive
Input Bandwidth
Signal 1, 2
Signal 3, 4
Active Period Accepts signals during valid acquisition periods via real-time gating
Maximum Input Voltage 0 to +5 Volt peak
System Trigger Output TTL compatible output via rear panel mounted BNC connectors (portable mainframe) or
Source Mode Active (true) low, falling edge latched
Active Period Outputs system trigger state during valid acquisition period, resets system trigger output
Output Levels
V
OH
TTL compatible input.
≥ 2.0 V
≤ 0.8 V
50 MHz square wave minimum
10 MHz square wave minimum
1
1
front panel mounted SMB connectors (benchtop mainframe).
to false state between valid acquisitions.
50 Ohm back terminated TTL-compatible output
≥4 V into open circuit
≥ 2 V into 50 Ohm to ground
V
OL
≥ 0.7 V sinking 10 ma
Output Protection Short-circuit protected (to ground)
Intermodule Signal Line Bandwidth Minimum bandwidth up to which the intermodule signals are specified to operate
correctly
Signal 1, 2 (ECLTRG0, 1) 50 MHz square wave minimum
Signal 3, 4 (TTLTRG0, 1) 10 MHz square wave minimum
External Signal Output TTL compatible outputs via rear panel mounted BNC connectors (portable mainframe)
or front panel mounted SMB connectors (benchtop mainframe).
Source Selection Signal 1, 2, 3, 4, or 10 MHz clock
Output Modes
Level Sensitive
Output Levels
V
OH
User definable
Active (true) low or active (true) high
50 Ohm back terminated TTL output
≥ 4 V into open circuit
≥ 2 V into 50 Ohm to ground
V
OL
≤ 0.7 V sinking 10 ma
Output Bandwidth
Signal 1, 2
Signal 3, 4
50 MHz square wave minimum
10 MHz square wave minimum
2
2
1–4
TLA 720 Benchtop Controller Service Manual
Specifications
T able 1–3: Benchtop mainframes external signal interface characteristics (cont.)
Characteristic Description
Active Period Outputs signals during valid acquisition periods, resets signals to false state between
valid acquisitions.
Outputs 10 MHz clock continuously
Output Protection Short-circuit protected (to ground)
1
The input bandwidth only applies to signals to the modules, not round trip signals into the external signal Input and back
out the external signal outputs.
2
The output bandwidth only applies to signals from the modules, not round trip signals out the external signal output and
back into the external signal inputs.
Table 1–4 lists the backplane interface characteristics for the benchtop
mainframe.
T able 1–4: Benchtop mainframes backplane interface characteristics
Characteristic Description
Slots
Benchtop mainframe 13
CLK10 Frequency 10 MHz ±100 PPM
n
Table 1–5 lists the electromagnetic compatibility (EMC) characteristics.
T able 1–5: Electromagnetic compatibility (EMC) characteristics
Characteristic Description
Emissions Emissions shall be within the limits specified by the following requirements:
Enclosure EN 55011 Class A limits for radiated emissions
Immunity , Enclosure, Radio Frequency
Electromagnetic Field
Immunity , Enclosure, Electrostatic Discharge
(ESD)
Immunity , Fast transients, Electrical No loss of stored data, change to control settings, degradation of performance, or
No instrument failures when the instrument is subjected to a 3 V/m electromagnetic
field over the frequency range of 80 MHz to 1000 MHz.
Up to 8 kV with no change to control settings or impairment of normal operation.
4 kV contact discharge and 8 kV air discharge.
temporary loss of function will occur when the system is subjected to the transients as
described below.
Port Peak Voltage Tr/Th Rep Frequency
Signal & Control 0.5 kV 5/50 ns 5 kHz
AC Power 1.0 kV 5/50 ns 5 kHz
TLA 720 Benchtop Controller Service Manual
1–5
Specifications
Table 1–6 lists the atmospheric characteristics.
T able 1–6: Atmospheric characteristics
Characteristic Description
Temperature:
Operating and non-operating
Operating (no media in floppy disk drive)
+5_ C to +50_ C, 15_ C/hour maximum gradient, non-condensing
(derated 1_ C per 1000 feet above 5000 foot altitude)
Non-operating (no media in floppy disk drive)
C to +60_ C, 15_ C/hour maximum gradient, non-condensing
–20_
Humidity:
Operating and non-operating
Operating (no media in floppy disk drive)
20% to 80% relative humidity, non-condensing.
Maximum wet bulb temperature: +29_
(derated relative humidity to approximately 22% at +50_
Non-operating (no media in floppy disk drive)
8% to 80% relative humidity, non-condensing. Maximum wet bulb temperature: +40_ C
(derated relative humidity to approximately 55% at +50_ C)
Altitude:
Operating and non-operating
Operating:
To 9144 feet (3000 meters),
(derated 1_ C per 1000 feet (305 meters) above 5000 feet (1524 meters) altitude)
Non-operating:
39376 feet (12000 meters)
Table 1–7 lists the dynamic characteristics.
T able 1–7: Dynamic characteristics
Characteristic Description
Random Vibration:
Operating and non-operating
Operating:
0.27 g
rms
C
C)
total from 5 Hz to 500 Hz, 10 minutes each axis, 3-axes, 30 minutes total.
1–6
Profile:
0.00015 g2/Hz 5-350 Hz, –3dB/octave slope 350-500 Hz, 0.000105 g2/Hz
Non-operating:
2.28 g
total from 5 Hz to 500 Hz, 10 minutes each axis, 3-axes, 30 minutes total.
rms
Profile:
0.0175 g2/Hz 5-100Hz, –3dB/octave slope 100-200 Hz, 0.00875g2/Hz 200-350 Hz,
–3dB/octave slope 350-500 Hz, 0.006132 g2/Hz
TLA 720 Benchtop Controller Service Manual
Specifications
Certifications and Compliances
T able 1–8: Certifications and compliances
EC Declaration of Conformity – EMC Meets intent of Directive 89/336/EEC for Electromagnetic Compatibility. Compliance was
demonstrated to the following specifications as listed in the Official Journal of the
European Communities:
EN 55011 Class A Radiated and Conducted Emissions
EN 50081-1 Emissions:
EN 60555-2 AC Power Line Harmonic Emissions
EN 50082-1 Immunity:
IEC 801-2 Electrostatic Discharge Immunity
IEC 801-3 RF Electromagnetic Field Immunity
IEC 801-4 Electrical Fast Transient/Burst Immunity
IEC 801-5 Power Line Surge Immunity
TLA 720 Benchtop Controller Service Manual
1–7
Specifications
1–8
TLA 720 Benchtop Controller Service Manual
Operating Information
Operating Information
Because the benchtop controller can not be operated outside of the benchtop
chassis, this chapter contains limited information about operation.
Refer to the TLA 700 Series User Manual for complete information on how to
operate and configure the benchtop controller.
The benchtop controller is a control module that is an integral part of the
benchtop chassis. The benchtop controller hardware is a slot zero device and
occupies three slots, 0 through 2.
Front Panel Components
The following is an overview of the benchtop controller front panel components.
LED Indicators
The benchtop controller has four LED indicators located on the front panel.
Figure 2–1 shows the front panel with the location of the LED indicators and
front panel connectors.
SLEEP Indicator. Indicates that the benchtop controller is in sleep mode.
RUN Indicator. Indicates that the memory is accessing data.
SYSTEM FAIL Indicator. Indicates a SYSFAIL condition exists on the communica-
tions bus.
TEST Indicator. Indicates that the benchtop controller is executing a power-on self
test (POST) diagnostic test sequence.
TLA 720 Benchtop Controller Service Manual
2–1
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