Tektronix WVR7200 User manual

xx
WVR7200
Waveform Rasterizer
ZZZ
Service Manual
*P077067600*
077-0676-00

WVR7200
Waveform Rasterizer
ZZZ
Service Manual
xx
www.tektronix.com
077-0676-00

Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries
or suppliers, and are protected by national copyright laws and international treaty provisions.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication
supersedes that in all previously published material. Specifications and price change privileges reserved.
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
Contacting Tektronix
Tektronix, Inc.
14150 SW Karl Braun Drive
P.O. Box 500
Beaverton, OR 97077
USA
For product information, sales, service, and technical support:
In North America, call 1-800-833-9200.
Worldwide, visit www.tektronix.com to find contacts in your area.

Warranty
Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1)
year from the date of shipment. If any such 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. Parts, modules and replacement products used by Tektronix for warranty
work may be new or reconditioned to like new performance. All replaced parts, modules and products become
the property of Tektronix.
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 WITH RESPECT TO THE PRODUCT 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.
[W2 – 15AUG04]

Table of Contents
General safety summary .......................................................................................... iv
Service safety summary........................................................................................... vi
Preface............................................................................................................. vii
Manual Conventions......................................................................................... vii
Related Manuals ............................................................................................. vii
Introduction ......................................................................................................... 1
Service Strategy................................................................................................ 1
Specifications................................................................................................... 1
Performance Verification...................................................................................... 1
Options and Accessories...................................................................................... 1
Configurations.................................................................................................. 1
Hardware Installation.......................................................................................... 2
Product Upgrade............................................................................................... 2
Operating Information......................................................................................... 2
Theory of Operation................................................................................................ 3
Main Board..................................................................................................... 5
Front Panel ..................................................................................................... 6
Composite Input Option CPS................................................................................. 6
Audio Options AD and DPE ................................................................................. 6
Option PHY3................................................................................................... 7
Fan Control.................................................................................................... 10
Power Supply and Distribution.............................................................................. 10
Adjustments........................................................................................................ 11
Required Equipment.......................................................................................... 11
Procedures..................................................................................................... 11
General Maintenance.............................................................................................. 17
Preventing ESD............................................................................................... 17
Inspection and Cleaning...................................................................................... 18
Troubleshooting............................................................................................... 20
Detailed Troubleshooting Procedures ...................................................................... 26
Repackaging Instructions......................................................................................... 38
Packaging...................................................................................................... 38
Shipping to the Service Center.............................................................................. 38
Replaceable Parts.................................................................................................. 39
Parts Ordering Information .................................................................................. 39
Using the Replaceable Parts Lists........................................................................... 40
WVR7200 Waveform Rasterizer Service Manual i

Table of Contents
List of Figures
Figure 1: Main block diagram .................................................................................... 4
Figure 2: Option PHY3 block diagram .......................................................................... 9
Figure 3: Main board indicator LED, connector, and test point locations .................................. 35
Figure 4: Options AD and DPE Audio board, component side .............................................. 36
Figure 5: Options AD and DPE Audio board back side indicator LED and test point locations ......... 37
Figure 6: Replaceable parts (standard).......................................................................... 43
Figure 7: Replaceable parts (standard).......................................................................... 45
Figure 8: Replaceable parts (options) ........................................................................... 47
Figure 9: Replaceable parts (WVR8RFP Remote Front Panel).............................................. 51
Figure 10: Analog audio breakout cable assembly ............................................................ 52
ii WVR7200 Waveform Rasterizer Service Manual

Table of Contents
List of Tables
Table i: Related documentation................................................................................. vii
Table 1: External inspection check list.......................................................................... 19
Table 2: Internal inspection check list........................................................................... 19
Table 3: Required test equipment................................................................................ 22
Table 4: Symptoms and causes .................................................................................. 23
Table 5: Main board secondary supplies........................................................................ 28
Table 6: Audio board secondary supplies....................................................................... 29
WVR7200 Waveform Rasterizer Service Manual iii

General safety summary
General safetysummary
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 a larger system.
Read the safety sections of the other component 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.
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 markings on the product. Consult the product manual for further ratings
information before making connections to the product.
Do not apply a potential to any terminal, including the common terminal, that
exceeds the maximum rating of that terminal.
Power disconnect. The power cord disconnects the product from the power source.
Donotblockthepowercord;itmustremain accessible to the user at all times.
Do not operate without covers. Do not operate this product with covers or panels
removed.
Do not operate with suspected failures. If you suspect that there is damage to this
product, have it inspected by qualified service personnel.
Avoid exposed circuitry. Do not touch exposed connections and components when
power is present.
Replace batteries properly. Replace batteries only with the specified type and
rating.
Recharge batteries properly. Recharge batteries for the recommended charge cycle
only.
Use proper fuse. Use only the fuse type and rating specified for this product.
Wear eye protection. Wear eye protection if exposure to high-intensity rays or
laser radiation exists.
iv WVR7200 Waveform Rasterizer Service Manual