Tektronix TLA 704 Service Manual
Service Manual
TLA 704
Color Portable Mainframe
070-9777-02
This document applies to TLA 700 application
software version 1.00 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.
Copyright © T ektronix, Inc. All rights reserved. Licensed software products are owned by Tektronix or its suppliers and
are protected by United States copyright laws and international treaty provisions.
Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the
Rights in T echnical Data and Computer Software clause at DFARS 252.227-7013, or subparagraphs (c)(1) and (2) of the
Commercial Computer Software – Restricted Rights clause at F AR 52.227-19, as applicable.
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.
Printed in the U.S.A.
T ektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000
TEKTRONIX and TEK are registered trademarks of T ektronix, Inc.
Windows and Windows 95 are trademarks of Microsoft Corporation.
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.
TEKTRONIX SERVICE OPTIONS
T ektronix offers the following service options. These options are modular, flexible, and easy to order with your instrument. Designed to ease installation and start up, to support tracking of calibration to requirements of ISO9000, and
to provide for extended repair coverage, these options help fix your long-term maintenance costs and eliminate unplanned expenditures. And these options can be converted from service at T ektronix service depots to service on-site
(see Option S3), which helps keep downtime to a minimum.
Product installation service
1
Option IN Provides initial installation of the product and
familiarizes new users with some of its operation features
Three years of calibration services Option C3 Provides initial Certification on delivery, plus
two more annual calibrations from your
service center
Test data Option D3 Provides test data on delivery and when cal-
ibration services are provided (three
total, order with Option C3)
Three years repair coverage Option R3 Provides three years of repair coverage for the
instrument, including displays and accessories
sold with the instrument
One year uplift to on–site service
1,2
Option S1 Converts the standard one year, “return to
depot” warranty to provide service on site for
one year
Three year uplift to on-site service
1,2
Option S3 Converts any C3, D3, and R3 options pur-
chased to on-site services for three years
Tektronix Service Options are available at the time you order your instrument. Contact your local Tektronix Sales
Office for more information.
1
Availability of installation and on-site services depends on the type of product and may vary by geography.
2
Uplift options are ordered with the mainframe products and cover individual modules.
Table of Contents
Specifications
Operating Information
General Safety Summary v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Safety Summary vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preface ix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual Structure ix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual Conventions x. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Related Manuals xi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction xiii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustment and Certification Interval xiii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Strategy for Servicing xiii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Offerings xiv. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contacting T ektronix xv. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Product Description 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Characteristics T ables 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I/O and Memory Hardware 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating System and Application Interface 2–6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostics 2–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Theory of Operation
Portable Mainframe 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performance Verification
Performance Verification 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustment Procedures
Adjustment Procedures 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance
Preparation 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preventing ESD 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Cleaning 6–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal and Installation Procedures 6–5. . . . . . . . . . . . . . . . . . . . . . . . . .
Preparation — Please Read 6–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedures for External Parts 6–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Cover and Trim Ring 6–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Panel Control Assembly 6–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flat Panel Display Assembly 6–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Panel Knobs 6–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TLA 704 Color Portable Mainframe Service Manual
i
Table of Contents
Bottom Cover 6–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T op Cover 6–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Left Side Cover 6–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Right Side Cover 6–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Line Cord and Line Fuse 6–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply 6–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Chassis Fan Tray 6–21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Individual Fans 6–23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flip Stands and Rear Feet 6–25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cord-Wrap Feet 6–26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Handle 6–27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedures for Internal Parts 6–28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Controller Board 6–29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RAM SIMMs 6–31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Backplane Board 6–31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Floppy Disk Drive 6–32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hard Disk Drive 6–33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interface Board 6–34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Panel Control Board 6–34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Glidepoint Assembly 6–36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Elastomeric Keypad 6–36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 6–39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check for Common Problems 6–40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Eliminate Other Problem Sources 6–41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshoot the TLA 704 Portable Mainframe 6–42. . . . . . . . . . . . . . . . . . . . . . . . .
BIOS Setup Error Messages 6–51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Update the BIOS Version 6–53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustment After Repair 6–56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repackaging Instructions 6–57. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options
Electrical Parts List
Diagrams
Replaceable Parts List
Options and Upgrade Kits 7–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Parts List 8–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagrams 9–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Standard Accessories 10–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Accessories 10–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Ordering Information 10–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Common Replaceable Parts 10–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Replaceable Parts List 10–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ii
TLA 704 Color Portable Mainframe Service Manual
List of Figures
Table of Contents
Figure 1–1: Front and side views of TLA 704 Color Portable
Mainframe 1–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–1: TLA 704 Color Portable Mainframe front panel 2–2. . . . . .
Figure 2–2: TLA 704 Color Portable Mainframe rear panel 2–3. . . . . . .
Figure 2–3: Typical System window 2–7. . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–1: TLA 704 Color Portable Mainframe major components
block diagram 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–1: External parts 6–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–2: Front cover and trim ring removal 6–10. . . . . . . . . . . . . . . . . .
Figure 6–3: Front-panel control assembly removal 6–11. . . . . . . . . . . . . . .
Figure 6–4: Flat panel display assembly removal 6–13. . . . . . . . . . . . . . . .
Figure 6–5: Top and side cover removal 6–16. . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–6: Line cord and line fuse removal 6–19. . . . . . . . . . . . . . . . . . . .
Figure 6–7: Power supply removal 6–20. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–8: Rear chassis fan tray removal 6–22. . . . . . . . . . . . . . . . . . . . . .
Figure 6–9: Individual fan removal 6–24. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–10: Flip stand and rear feet removal 6–25. . . . . . . . . . . . . . . . . . .
Figure 6–11: Cord-wrap feet removal 6–26. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–12: Handle removal 6–27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–13: Internal parts 6–29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–14: Front panel control assembly parts locations 6–35. . . . . . . . .
Figure 6–15: Primary troubleshooting tree 6–43. . . . . . . . . . . . . . . . . . . . . .
Figure 6–16: Jumper locations for bypassing front panel control
assembly 6–46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–17: Location of J1 and J2 pins within the portable
mainframe 6–48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–18: ResMan32 program output 6–50. . . . . . . . . . . . . . . . . . . . . . .
Figure 6–19: BIOS jumper location 6–54. . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 9–1: Interconnection diagram 9–1. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 9–2: Block diagram 9–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 10–1: External parts 10–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 10–2: Front panel display and control assemblies 10–11. . . . . . . . . .
Figure 10–3: Floppy disk drive, hard disk drive, front panel interface
board, and related cables 10–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 10–4: Controller board, interface board, and EMI shield 10–15. . .
Figure 10–5: Power supply, handle, and fan 10–17. . . . . . . . . . . . . . . . . . . . .
TLA 704 Color Portable Mainframe Service Manual
iii
Table of Contents
List of Tables
Table 1–1: Internal controller 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–2: Display system 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–3: Backplane interface 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–4: Front panel interface 1–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–5: Rear panel interface 1–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–6: AC power source 1–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–7: Secondary power 1–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–8: Certifications and compliances:
TLA 704 Color Portable Mainframe 1–10. . . . . . . . . . . . . . . . . . . . . . .
Table 1–9: Cooling 1–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–10: Environmental 1–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–11: Mechanical 1–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 2–1: SVGA OUT pin assignments 2–4. . . . . . . . . . . . . . . . . . . . . . .
Table 2–2: COM (serial interface) pin assignments 2–5. . . . . . . . . . . . . .
Table 2–3: LPT (parallel interface) pin assignments 2–5. . . . . . . . . . . . .
Table 6–1: Tools required for part removal 6–6. . . . . . . . . . . . . . . . . . . . .
Table 6–2: Failure symptoms and possible causes 6–40. . . . . . . . . . . . . . . .
Table 6–3: TLA 700 Power-on diagnostic tests 6–44. . . . . . . . . . . . . . . . . .
Table 6–4: Power supply voltages and backplane connector pins 6–47. . .
Table 6–5: Command line options for ResMan32 6–49. . . . . . . . . . . . . . . .
Table 6–6: BIOS error codes and explanations 6–51. . . . . . . . . . . . . . . . . .
Table 7–1: TLA 704 Color Portable Mainframe options and
upgrade kits 7–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 10–1: Standard accessories 10–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 10–2: Power cord identification 10–2. . . . . . . . . . . . . . . . . . . . . . . . .
Table 10–3: Optional accessories 10–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 10–4: Common replaceable parts 10–5. . . . . . . . . . . . . . . . . . . . . . . .
Table 10–5: Parts lists column descriptions 10–6. . . . . . . . . . . . . . . . . . . . .
iv
TLA 704 Color Portable Mainframe 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
Use Proper Power Cord. Use only the power cord specified for this product and
certified for the country of use.
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 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 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.
The common terminal is at ground potential. Do not connect the common
terminal to elevated voltages.
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 .
TLA 704 Color Portable Mainframe Service Manual
v
General Safety Summary
Provide Proper Ventilation. Refer to the manual’s installation instructions for
details on installing the product so it has proper ventilation.
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
vi
Protective Ground
(Earth) T erminal
TLA 704 Color Portable Mainframe Service Manual
CAUTION
Refer to Manual
Double
Insulated
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 704 Color Portable Mainframe Service Manual
vii
Service Safety
viii
TLA 704 Color Portable Mainframe Service Manual
Preface
Manual Structure
This is the service manual for the TLA 704 Color Portable Mainframe. 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 following this preface for safety and other important background
information needed before using this manual for servicing this product.
The TLA 704 Color Portable Mainframe Service 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.
A brief description of each chapter follows:
H Specifications contains a product description of the portable mainframe 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 portable mainframe. For
complete installation and configuration procedures, refer to the TLA 700
Series Installation Manual.
H Theory of Operation contains circuit descriptions that support general service
to the circuit board or replacement part level.
H Performance Verification refers you to the TLA 700 Series Performance
Verification and Adjustment Manual that contains the performance verifica-
tion procedures for the portable mainframe and for other major components
in TLA 700 Series Logic Analyzers.
H Adjustment Procedures notes that the portable mainframe requires no
adjustment.
H Maintenance contains information and procedures for doing preventive and
corrective maintenance on the portable mainframe. Included are instructions
for cleaning, for removal and installation of replaceable parts, and for
troubleshooting product failures. Instructions for shipping the module are
also found in this chapter.
H Options contains information on the factory-installed options that may be
available for the portable mainframe.
TLA 704 Color Portable Mainframe Service Manual
ix
Preface
Manual Conventions
H Diagrams contains a block diagram and an interconnection diagram useful
for isolating failed circuit boards or assemblies.
H Mechanical Parts List includes a table of all replaceable parts, their
descriptions, and their Tektronix part numbers.
This manual uses certain conventions that you should become familiar with
before attempting service.
Modules
Replaceable Parts
Safety
Throughout this manual, the term module refers to a TLA 700 Series Logic
Analyzer or DSO unit that mounts inside a TLA 700 Series Portable or Benchtop
Mainframe. A module is composed of circuit cards, interconnecting cables, and a
user-accessible front panel.
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, such as the hard disk drive, or a
mechanical part, such as the I/O port connectors, that is listed in the replaceable
parts list of Chapter 10. Also, see Strategy for Servicing on page xiii.
Symbols and terms related to safety appear in the Service Safety Summary found
at the beginning of this manual.
x
TLA 704 Color Portable Mainframe Service Manual
Related Manuals
The following manuals are available as part of the TLA 700 Series Logic
Analyzer documentation set. (See Standard Accessories and Optional
Accessories on pages 10–1 and 10–3 for manual part numbers.)
The procedures and information in this manual assumes that service personnel
have access to all manuals listed in the following table.
Manual Name Description Service Use
Preface
The TLA 700 Series Installation Manual Provides the basic installation instructions
for the TLA 700 Series Logic Analyzer.
The TLA 700 Series Performance Verifica-
tion and Adjustment T echnical Reference
Manual
The TLA 700 Series Logic Analyzer User
Manual and TLA 700 Online Help
The TLA 711 Color Benchtop Chassis
Service Manual
The TLA 711 Color Benchtop Controller
Service Manual
The TLA 7Lx/TLA 7Mx Logic Analyzer
Service Manual
Provides performance verification, certification, and adjustment procedures for the
TLA 700 Series Logic Analyzer
Provides operating information on the
TLA 700 Series Logic Analyzer
Provides service information for the
benchtop chassis
Provides service information for the slot 0
controller in the benchtop mainframe
Provides service information for the logic
analyzer modules
Installation and removal of DSO, Logic
Analyzer, and Benchtop-Controller Modules
Reinstallation of Windows 95 and TLA 700
software and firmware
Replacing individual podlet cables in the
logic analyzer probes
Reformatting hard disk
Performing periodic or after-repair functional
or performance verifications, calibrations, or
certifications
Performing periodic or after-repair adjustment
Augments operating information found in
chapter 2 of this manual
Isolating and correcting failures in the
benchtop chassis
Isolating and correcting failures in the
benchtop controller
Isolating and correcting failures in the Logic
Analyzer module
The TLA 7Dx/TLA 7Ex Digitizing Oscillo-
scope Service Manual
Provides service information for the
digitizing oscilloscope modules
TLA 704 Color Portable Mainframe Service Manual
Isolating and correcting failures in the
Digitizing Signal Oscilloscope module
xi
Preface
xii
TLA 704 Color Portable Mainframe Service Manual
Introduction
This manual contains information needed to properly service the TLA 704 Color
Portable Mainframe. This introduction contains information critical to safe and
effective servicing.
To prevent personal injury or damage to the portable mainframe, 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 ix.
H Read Operating Information beginning on page 2–1.
When using this manual for servicing, be sure to follow all warnings, cautions,
and notes.
Adjustment and Certification Interval
Strategy for Servicing
Generally, you should perform the adjustments and certification (calibration)
described in the TLA 700 Series Performance Verification and Adjustment
Technical Reference Manual once per year or following repairs that affect
adjustment or calibration.
This manual supports and contains information needed for periodic maintenance
of the portable mainframe.
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
This manual does not support component-level fault isolation and replacement.
TLA 704 Color Portable Mainframe Service Manual
xiii
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 TLA 704
Color Portable Mainframe. Tektronix technicians train on Tektronix products;
they have access to the latest information on improvements to the TLA 704
Color Portable Mainframe as well as the latest new product upgrades. Services
are provided at Tektronix Services Centers and on-site at your facility, depending
on your location.
Warranty Repair Service
Calibration and Repair
Service
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 Customer Services World Center web site at http://www.tek.com/Mea-
surement/Service. See our latest service offerings and contact us by email.
In addition to warranty repair, Tektronix Service offers calibration and other
services which 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 TLA 704 Color Portable Mainframe.
Service Options. 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. These service options are listed on the Tektronix
Service Options page following the title page of this manual.
xiv
Service Agreements. 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 TLA 704 Color Portable
Mainframe. Service agreements may be customized to meet special turn-around
time and/or on-site requirements.
Service on Demand. Tektronix also offers calibration and repair services on a
“per-incident” basis that is available with standard prices for many products.
TLA 704 Color Portable Mainframe Service Manual
Contacting Tektronix
Introduction
Self Service. 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.
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.
Product
Support
Service
Support
For other
information
To write us Tektronix, Inc.
For application-oriented questions about a Tektronix measurement product, 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.
Contact your local Tektronix distributor or sales office. Or visit
our web site for a listing of worldwide service locations.
http://www.tek.com
In North America:
1-800-TEK-WIDE (1-800-835-9433)
An operator will direct your call.
P.O. Box 1000
Wilsonville, OR 97070-1000
TLA 704 Color Portable Mainframe Service Manual
xv
Introduction
xvi
TLA 704 Color Portable Mainframe Service Manual
Specifications
Product Description
This chapter provides a brief product description and lists the warranted
characteristics, nominal traits, and typical characteristics of the TLA 704 Color
Portable Mainframe.
The TLA 704 Color Portable Mainframe is the base component of a customerconfigurable portable instrument. It can function as a logic analyzer, a digital
storage oscilloscope, or both, depending on the module cards installed in its
slots. The mainframe has the following features:
H Microsoft Windows 95 operating system
H Standard PC I/O ports, two PC card slots, and a PC-based processor
architecture provides automatic connectivity to numerous off-the-shelf I/O
devices (Ethernet, modem, printers, etc.)
H Display system provides internal color flat-panel LCD display (10.4-inch
active-matrix TFT) and an external SVGA port capable of driving large,
high-resolution external monitors
H Four backplane slots provide compatibility with TLA 700 Series instrument
modules
H Easy user configurability
H Precision clock, bus trigger line, and event signaling between the mainframe
and instrument modules supports real-time triggering, sequencing, and time
correlation of events
H Easy service access to field-replaceable parts
H Mainframe compatible with international power standards, certified to
international safety and EMC requirements, and tested to rugged environmental standards
TLA 704 Color Portable Mainframe Service Manual
1–1
Specifications
Characteristics Tables
This section contains the complete specifications for the portable mainframe. All
specifications are warranted unless noted “typical.” Typical characteristics
describe typical or average performance and provide useful reference information. Specifications marked with the n symbol are checked in the TLA 700
Series Performance Verification and Adjustment Technical Reference Manual.
T able 1–1: Internal controller
Characteristic Description
Classification Microsoft Windows 95 compliant
Processor Intel 133 MHz Pentium PC-AT configuration, with an Intel 82430HX
(Triton II) chip set
Main Memory EDO DRAM
Style Two 72-pin SIMMs, gold-plated
Loading Symmetric, 2-SIMM minimum (64 bits)
Speed 60ns
Installed Configurations 16 MByte minimum, 32 MByte maximum
Cache Memory 256 KByte Level 2 (L2) write-back cache
Flash BIOS 512 KByte
Real-Time Clock and CMOS Setups NVRAM Real-Time clock/calendar, with typical 10-year life. Standard and
advanced PC CMOS setups; see BIOS specification.
Floppy Disk Drive Standard 3.5 inch 1.44-MByte PC compatible high-density, double-sided
floppy disk drive.
Hard Disk Drive Standard PC compatible ATA/Enhanced Integration Device Electronics
(EIDE) hard disk drive.
Size MIN configuration: 840 MByte
MAX configuration: 2.16 GByte
Subject to change; these are the storage capacities valid at product
introduction.
1–2
TLA 704 Color Portable Mainframe Service Manual
Specifications
T able 1–2: Display system
Characteristic Description
Classification Standard PC graphics-accelerator technology (bitBLT-based); capable of
supporting both internal color LCD display and external color SVGA/XGA
monitor
Display Memory DRAM-based frame-buffer memory
Size 1 MByte
Width 32-bit
Display Selection Hardware sense of external SVGA monitor during BIOS boot sequence;
defaults to internal color LCD display; automatically switches to external
SVGA monitor, if attached.
Dual (simultaneous) display of external SVGA monitor and internal color
LCD is possible via special CMOS “simulscan” setup, as long as internal
and external displays operate at same resolution (limited to 640x480 on
current TFT LCD) and display rates.
Dynamic Display Configuration 1 (DDC1) support for external SVGA
monitor is provided.
External Display Drive 1 SVGA/XGA-compatible analog output port
Display Size Resolution (Pixels) Colors DDC1?
640x480 256 yes
640x480 64K yes
640x480 16.8M no
800x600 256 yes
800x600 64K yes
1024x768 256 yes
Internal Display
Classification Thin Film Transistor (TFT) 10.4” active-matrix color LCD display , CCFL
backlight, intensity controllable via software.
Resolution 640 pixels horizontal by 480 pixels
Color Scale 262,144 colors (6-bit RGB)
T able 1–3: Backplane interface
Characteristic Description
Slots 4 C-size, compliant with VXIBus System Spec Rev. 1.4, except as
follows:
MODID driver not capable of sinking 48 mA as required for 3-state
lines (meets standard design practices for VXI); and
TLA 704 Color Portable Mainframe Service Manual
TTL TRG* may not be unasserted after SYSRESET*, as ADG332
does not use SYSRESET* (accommodated via local controller
reset)
1–3
Specifications
T able 1–3: Backplane interface (Cont.)
Characteristic Description
n CLK10 Frequency 10 MHz ±100 PPM
System-Level Relative Time
Correlation Error
1,2
LA to LA “MagniVu” data 2 ns
LA to LA “normal” data utilizing an internal clock
3
LA to LA “normal” data utilizing an external clock 2 ns
LA “MagniVu” to DSO data 3 ns
LA to DSO “normal” data utilizing an internal clock
LA to DSO “normal” data utilizing an external clock
DSO to DSO
4
System Trigger and External Signal Input Latencies
External System Trigger Input to LA Probe Tip
External Signal Input to LA Probe Tip via Signal 3, 4
External Signal Input to LA Probe Tip via Signal 1, 2
External System Trigger Input to DSO Probe Tip
System Trigger and External Signal Output Latencies
LA Probe Tip to External System Trigger Out
LA Probe Tip to External Signal Out via Signal 3, 4
3,4
4
5,6
7
8
8,9
7
6
9
9
OR function 371 ns + Smpl
All measurements typical.
1 LA Sample – 0.5 ns
1 LA sample + 1 ns
3 ns
3 ns
All measurements typical.
–271 ns
–212 ns + Clk
–208 ns + Clk
–27 ns
All measurements typical.
380 ns + Smpl
AND function 383 ns + Smpl
LA Probe Tip to External Signal Out via Signal 1, 2
6,9
normal function 381 ns + Smpl
inverted logic on backplane 384 ns + Smpl
DSO Probe Tip to External System Trigger Out 70 ns
DSO Probe Tip to External Signal Out via Signal 3, 4
OR function 68 ns
AND function 78 ns
DSO Probe Tip to External Signal Out via Signal 1, 2
9
normal function 71 ns
inverted logic on backplane 71 ns
1–4
TLA 704 Color Portable Mainframe Service Manual
Specifications
T able 1–3: Backplane interface (Cont.)
Characteristic Description
Inter-Module Latencies
LA to DSO Inter-Module System Trigger
LA to LA Inter-Module System Trigger
LA to DSO Inter-Module ARM
LA to LA Inter-Module ARM
LA to LA Inter-Module via Signal 1, 2
LA to LA Inter-Module via Signal 3, 4
DSO to DSO Inter-Module System Trigger
DSO to LA Inter-Module System Trigger
DSO to LA Inter-Module ARM
DSO to DSO Inter-Module ARM 59 ns
DSO to LA Inter-Module via Signal 1, 2
DSO to LA Inter-Module via Signal 3, 4
1
Includes typical jitter, slot-to-slot skew, and probe-to-probe variations to provide a “typical” number for the measurement.
Assumes standard accessory probes are utilized.
2
For time intervals longer than 1 ms between modules, add 0.01% of the difference between the absolute time measurements to the relative time correlation error to account for the inaccuracy of the CLK10 source.
3
“Smpl” represents the time from the event at the probe tip inputs to the next valid data sample of the logic analyzer. In
the normal internal clock mode, this represents the delta time to the next sample clock. In MagniVu internal clock mode,
this represents 500 ps or less. In external clock mode, this represents the time to the next master clock generated by the
setup of the clocking state machine and the supplied SUT clocks and qualification data.
4
DSO modules time correlation measured at maximum sample rate on channel one only.
5
All system trigger and external signal input latencies were measured from a falling-edge transition (active/true low) with
signals measured in the “wired-or” configuration.
6
Latencies are based on typical portable mainframe configurations consisting of two LA modules or an LA module plus a
DSO module. Latencies are system-configuration-dependent and may vary slightly with module loading.
7
In the Waveform window , triggers are always marked immediately except when delayed to the first sample. In the Listing
window, triggers are always marked on the next sample period following their occurrence.
8
“+Clk” represents the time to the next “master” clock at the destination logic analyzer. In the “asynchronous” or
“internal” clock mode, this represents the delta time to the next sample clock beyond the minimum async rate of 4 ns. In
the “synchronous” or “external” clock mode, this represents the time to the next master clock generated by the setup of
the clocking state machine and the supplied SUT clocks and qualification data.
9
Signals 1 and 2 (ECLTRG0, 1) are limited to a “broadcast” mode of operation, where only one source is allowed to drive
the signal node at any one time. That single source may be utilized to drive any combination of destinations.
6
3,7
3,7
3
3,8
3,8,9
3,8
7
7
8
8, 9
8
All measurements typical.
358 ns + Smpl
68 ns + Smpl
360 ns + Smpl
108 ns + Smpl + Clk
120 ns + Smpl + Clk
116 ns + Smpl + Clk
50 ns
–236 ns
–192 ns + Clk
–179 ns + Clk
–184 ns + Clk
TLA 704 Color Portable Mainframe Service Manual
1–5
Specifications
T able 1–4: Front panel interface
Characteristic Description
QWERTY Keypad 31-key ASCII keypad to support naming of files, traces, and keyboard
equivalents of pointing device inputs for menus
HEX Keypad 25-key HEX keypad supporting standard DSO and LA entry functions
Special Function Knobs
Multi-Function Knob Various increment/decrement functions
Vertical Position Scrolling and positioning dependent on display type
Vertical Scale Scales waveform displays only
Horizontal Position Scrolling and positioning dependent on display type
Horizontal Scale Scales waveform displays only
Integrated Pointing Device Vertically mounted glidepoint touchpad with three keypad control buttons
(DRAG, SELECT, and MENU)
Mouse Port PS/2 compatible mouse port utilizing a mini-DIN connector
Keyboard Port PS/2 compatible keyboard port utilizing a mini-DIN connector
1–6
TLA 704 Color Portable Mainframe Service Manual
Specifications
T able 1–5: Rear panel interface
Characteristic Description
LPT (Parallel Interface) Port 36-pin high-density connector supports standard Centronics mode,
Enhanced Parallel Port (EPP), or Microsoft high-speed mode (ECP)
Complies with IEEE P1284-C/D2 for bi-directional Parallel Peripheral
Interface for Personal Computers (draft) style 1284-C
COM (Serial Interface) Port 9-pin male sub-D connector to support RS-232 serial port.
SVGA Output Port 15-pin sub-D SVGA connector.
Type I and II PC Card Port Standard Type I and II PC-compatible PC card slot. Complies with
PCMCIA 2.1 and JEIDA 4.1
Type I, II, and III PC Card Port Standard Type I, II, and III PC-compatible PC card slot
System Trigger Input TTL-compatible inputs via rear-panel BNC connectors
Input Destination System trigger (TTLTRG7)
Input Levels VIH ≥2.0V; VIL ≤ 0.8V (TTL-compatible input)
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 system trigger input latch between valid acquisition
periods.
Maximum Input Voltage 0 to +5V peak
External Signal Input TTL-compatible inputs via rear-panel BNC connectors
Input Destinations Signal 1, 2 (ECLTRG0, 1)
Signal 3, 4 (TTLTRG0, 1)
Input Levels VIH ≥2.0V; VIL ≤ 0.8V (TTL-compatible input)
Maximum Input Voltage 0 to +5V peak
Input Mode Active (true) low, level sensitive
Input Bandwidth Signal 1, 2: 50 MHz square wave minimum;
Signal 3, 4: 10 MHz square wave minimum.
Input bandwidth only applies to signals to the modules, not round-trip
signals into the external signal input and back out the external signal
output.
Active Period Accepts signals during valid acquisition periods via real-time gating
TLA 704 Color Portable Mainframe Service Manual
1–7
Specifications
T able 1–5: Rear panel interface (Cont.)
Characteristic Description
System Trigger Output TTL-compatible outputs via rear-panel BNC connectors
Source Selection System trigger (TTLTRG7)
Output Levels 50-W back-terminated TTL output
VOH ≥ 4 V into open circuit
VOH ≥ 2 V into 50 W to ground
VOL ≤ 0.7 V sinking 10 mA
Source Mode Falling edge sensitive
Active Period Outputs system trigger state during valid acquisition period; resets
system trigger output to false state and resets output latch between valid
acquisitions via software
Output Protection Short-circuit protected (to ground)
External Signal Output TTL-compatible outputs via rear-panel BNC connectors
Source Selection Signal 1, 2 (ECL TRG0, 1)
Signal 3, 4 (TTLTRG0, 1)
10 MHz clock (CLK10)
Output Levels 50-W back-terminated TTL output
VOH ≥ 4 V into open circuit
VOH ≥ 2 V into 50 W to ground
VOL ≤ 0.7 V sinking 10 mA
Output Modes User-definable: active (true) low or active (true) high
Output Bandwidth Signal 1, 2: 50 MHz square wave minimum
Signal 3, 4: 10 MHz square wave minimum.
The output bandwidth only applies to signals from the modules, not
round-trip signals into the External Signal Input and back out the
External Signal Output.
Active Period Outputs signals during valid acquisition periods; resets signals to false
state between valid acquisitions via software
Output Protection Short-circuit protected (to ground)
Intermodule Signal Line Bandwidth Minimum bandwidth over which the intermodule signals are specified to
operate correctly:
Signal 1,2 (ECLTRG0,1): 50 MHz square wave minimum
Signals 3,4 (TTLTRG0,1): 10 MHz square wave minimum
;
1–8
TLA 704 Color Portable Mainframe Service Manual
T able 1–6: AC power source
Characteristic Description
Source Voltage and Frequency 90 V
100 V
Fuse Rating
RMS
RMS
to 250 V
to 132 V
, 45 Hz to 66 Hz, continuous range CAT II;
RMS
, 360 Hz to 440 Hz, continuous range CAT II
RMS
Specifications
90 V - 250 V Operation
(159–0046–00)
90 V - 250 V Operation
(159–0381–00)
UL198/CSA C22.2
0.25 in × 1.25 in, Fast Blow, 8 A, 250 V
IEC 127/Sheet 1
5 mm × 20 mm, Fast Blow, 6.3 A, 250 V
Maximum Power Consumption 600 W line power maximum
Steady-State Input Current 6 A
maximum
RMS
Inrush Surge Current 70 A maximum
Power Factor Correction Yes
On/Standby Switch and Indicator Front Panel On/Standby switch, with LED indicator located next to
switch.
The power cord provides main power disconnect.
T able 1–7: Secondary power
Characteristic Description
DC Voltage Regulation Voltage Vmin Vnom Vmax
+24 V 23.28 V 24.24 V 25.20 V
+12 V 11.64 V 12.12 V 12.60 V
TLA 704 Color Portable Mainframe Service Manual
+5 V 4.875 V 5.063 V 5.250 V
–2 V –2.10 V –2.00 V –1.90 V
–5.2 V –5.460 V –5.252 V –5.044 V
–12 V –12.60 V –12.12 V –11.64 V
–24 V –25.20 V –24.24 V –23.28 V
1–9
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