Tektronix TLA 704 User manual

[phone] | [email protected] | artisantg.com
-~
ARTISAN
®
~I
TECHNOLOGY
GROUP
Your definitive source
for
quality
pre-owned
equipment.
Artisan Technology
Group
Full-service,
independent
repair
center
with
experienced
engineers
and
technicians
on staff.
We
buy
your
excess,
underutilized,
and
idle
equipment
along
with
credit
for
buybacks
and
trade-ins
.
Custom
engineering
so
your
equipment
works
exactly as
you
specify.
•
Critical
and
expedited
services
•
Leasing
/
Rentals/
Demos
• In
stock/
Ready-to-ship
•
!TAR-certified
secure
asset
solutions
Expert
team
ITrust
guarantee
I
100%
satisfaction
All
tr
ademarks,
br
a
nd
names, a
nd
br
a
nd
s a
pp
earing here
in
are
th
e property of
th
e
ir
r
es
pecti
ve
ow
ner
s.
Visit our website - Click HERE

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 ©Tektronix, 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 Technical 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 FAR 52.227-19, as applicable.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes
that in all previously published material. Specifications and price change privileges reserved.
Printed in the U.S.A.
Tektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
Windows and Windows 95 are trademarks of Microsoft Corporation.

WARRANTY
Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship
for a period of one (1) year from the date of shipment. If a product proves defective during 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 damage resulting
from attempts by personnel other than Tektronix representatives to install, repair or service the product; b) to repair
damage resulting from improper use or connection to incompatible equipment; c) to repair any damage or malfunction
caused by the use of non-Tektronix supplies; or d) to service a product that has been modified or integrated with other
products when the effect of such modification or integration increases the time or difficulty of servicing the product.
THIS 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
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.

TEKTRONIX SERVICE OPTIONS
Tektronixoffersthefollowingserviceoptions.Theseoptionsaremodular, flexible,andeasy toorderwith yourinstru-
ment. 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 un-
planned expenditures. And these options can be converted from service at Tektronix service depots to service on-site
(see Option S3), which helps keep downtime to a minimum.
Product installation service1Option IN Provides initial installation of the product and
familiarizes new users with some of its opera-
tion 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 service1,2 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 service1,2 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.
1Availability of installation and on-site services depends on the type of product and may vary by geography.
2Uplift options are ordered with the mainframe products and cover individual modules.

TLA 704 Color Portable Mainframe Service Manual i
Table of Contents
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 Tektronix xv. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications
Product Description 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Characteristics Tables 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Information
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contents
ii TLA 704 Color Portable Mainframe Service Manual
Bottom Cover 6–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Top 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
Options and Upgrade Kits 7–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Parts List
Electrical Parts List 8–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagrams
Diagrams 9–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replaceable Parts List
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contents
TLA 704 Color Portable Mainframe Service Manual iii
List of Figures
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. . . . . . . . . . . . . . . . . . . . .

Table of Contents
iv TLA 704 Color Portable Mainframe Service Manual
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. . . . . . . . . . . . . . . . . . . . .

TLA 704 Color Portable Mainframe Service Manual v
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.
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 SuspectedFailures. If you suspect there is damage to this
product, have it inspected by qualified service personnel.
Do Not Operate in Wet/DampConditions.
Do Not Operate in an Explosive Atmosphere.
Keep Product Surfaces Clean and Dry.
To Avoid Fire or
Personal Injury

General Safety Summary
vi TLA 704 Color Portable Mainframe Service Manual
Provide Proper Ventilation. Refer to the manual’s installation instructions for
details on installing the product so it has proper ventilation.
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 symbols may appear on the product:
ProtectiveGround
(Earth)Terminal CAUTION Refer to Manual Double Insulated
WARNING
High Voltage
Symbols and Terms

TLA 704 Color Portable Mainframe Service Manual vii
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.

Service Safety
viii TLA 704 Color Portable Mainframe Service Manual

TLA 704 Color Portable Mainframe Service Manual ix
Preface
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.
Manual Structure
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:
HSpecifications contains a product description of the portable mainframe and
tables of the characteristics and descriptions that apply to it.
HOperating 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.
HTheory of Operation contains circuit descriptions that support general service
to the circuit board or replacement part level.
HPerformance 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.
HAdjustment Procedures notes that the portable mainframe requires no
adjustment.
HMaintenance 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.
HOptions contains information on the factory-installed options that may be
available for the portable mainframe.

Preface
xTLA 704 Color Portable Mainframe Service Manual
HDiagrams contains a block diagram and an interconnection diagram useful
for isolating failed circuit boards or assemblies.
HMechanical Parts List includes a table of all replaceable parts, their
descriptions, and their Tektronix part numbers.
Manual Conventions
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 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.
Modules
Replaceable Parts
Safety

Preface
TLA 704 Color Portable Mainframe Service Manual xi
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
The TLA700 Series Installation Manual Providesthe basic installation instructions
for the TLA700 Series Logic Analyzer. Installation and removal of DSO, Logic Analyzer,and Benchtop-ControllerModules
Reinstallation of Windows 95 and TLA 700
softwareand firmware
Replacing individual podlet cables in the
logicanalyzer probes
Reformattinghard disk
The TLA700 Series Performance Verifica-
tion and Adjustment Technical Reference
Manual
Providesperformance verification,certifica-
tion, and adjustment procedures for the
TLA700 Series Logic Analyzer
Performingperiodic or after-repair functional
orperformance verifications, calibrations, or
certifications
Performingperiodic or after-repair adjust-
ment
The TLA700 Series Logic Analyzer User
Manual and TLA 700 Online Help Providesoperating information on the TLA700 Series Logic Analyzer Augmentsoperating information found in chapter 2 of this manual
The TLA711 Color Benchtop Chassis
ServiceManual Provides service information for the benchtopchassis Isolating and correcting failures in the benchtopchassis
The TLA711 Color Benchtop Controller
ServiceManual Provides service information for the slot 0 controllerin the benchtop mainframe Isolating and correcting failures in the benchtopcontroller
The TLA7Lx/TLA 7Mx Logic Analyzer
ServiceManual Provides service information for the logic analyzermodules Isolating and correcting failures in the Logic Analyzermodule
The TLA7Dx/TLA 7Ex Digitizing Oscillo-
scopeService Manual Provides service information for the digitizingoscilloscope modules Isolating and correcting failures in the DigitizingSignal Oscilloscope module

Preface
xii TLA 704 Color Portable Mainframe Service Manual

TLA 704 Color Portable Mainframe Service Manual xiii
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:
HThe procedures in this manual should be performed only by a qualified
service person.
HRead the General Safety Summary and Service Safety Summary found at the
beginning of this manual.
HRead the Preface beginning on page ix.
HRead 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
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.
Strategy for Servicing
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:
Hsupports isolation of faults to the failed circuit board or assembly level
shown in the replaceable parts list of Chapter 10
Hsupports removal and replacement of those boards or assemblies
Hsupports 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.

Introduction
xiv TLA 704 Color Portable Mainframe Service Manual
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.
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 quality-
standards 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.
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.
Warranty Repair Service
Calibration and Repair
Service

Introduction
TLA 704 Color Portable Mainframe Service Manual xv
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.
Contacting Tektronix
Product
Support For application-oriented questions about a Tektronix measure- ment 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:
[email protected]
For product support outside of North America, contact your
local Tektronix distributor or sales office.
Service
Support Contact your local Tektronix distributor or sales office. Or visit our web site for a listing of worldwide service locations.
http://www.tek.com
For other
information In North America: 1-800-TEK-WIDE (1-800-835-9433)
An operator will direct your call.
To write us Tektronix, Inc.
P.O. Box 1000
Wilsonville, OR 97070-1000