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WVR6020
Service Manual
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Tektronix WVR6020 - Default Chapter; Service Manual
87 pages
Manual
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WVR6020,
WVR7020,
WVR7120,
WVR6100
Opt.
MB,
WVR7000
Opt.
M
B,
and
WVR7100
Opt.
MB
W
aveform
Rasterizers,
and
WVRRFP
Remote
Front
Panel
ZZZ
Service
Manual
xx
Revision
A
www
.tektronix.com
077-2235-0
0
2
4
Table of Contents
Main Page
Default Chapter
3
Service Manual
3
Table of Contents
7
General Safety Summary
11
Service Safety Summary
13
Table I: Related Documentation
15
Preface
15
Manual Conventions
15
Related Manuals
15
Introduction
17
Service Strategy
19
Specifications
19
Performance Verification
19
Options and Accessories
19
Configurations
19
Hardware Installation
20
Product Upgrade
20
Operating Information
20
Theory of Operation
21
Serial Digital Input
24
Composite Input
24
Reference Input
24
Digital Waveform Processing Engine
24
Figure 2-1: WVR7020, WVR7120, and WVR6020 Waveform Rasterizers Block Diagram
25
Rasterizing Engine
26
Recursion and Picture Processing Engine
26
Control Processor
26
Front Panel
27
Ltc
27
Audio Option Board
27
Table 2-1: Supported Audio Options
27
Audio Processing
28
Audio Inputs
28
Audio Outputs
28
Option EYE/PHY
28
Fault LED and Fan Block Diagram
30
Figure 2-2: High-Level Fault and Fan Block Diagram
31
Power Supply and Distribution
32
Adjustment Procedures
33
Adjustments
35
Maintenance
37
General Maintenance
39
Preventing ESD
39
Inspection and Cleaning
40
Table 4-1: External Inspection Check List
41
Table 4-2: Internal Inspection Check List
41
Troubleshooting
43
Table 4-3: Required Test Equipment
44
Table 4-4: Symptoms and Causes
45
Detailed Troubleshooting Procedures
49
Table 4-5: Circuits that Can Assert Faults
50
Table 4-6: Digital Secondary Supplies
53
Table 4-7: Analog Supplies
53
Table 4-8: Audio Secondary Supplies
53
Figure 4-1: Main Board Indicator LED, Connector, and Test Point Locations
61
Figure 4-2: Options AD and DDE Audio Board, Component Side
62
Figure 4-3: Options AD and DDE Audio Board Back Side Indicator LED and Test Point Locations
63
Figure 4-4: Front Panel Board Indicator LED Locations (Viewed from Back Side)
64
Repackaging Instructions
65
Packaging
65
Shipping to the Service Center
65
Replaceable Mechanical Parts
67
Replaceable Parts
69
Parts Ordering Information
69
Using the Replaceable Parts Lists
70
Parts
71
Figure 5-1: Replaceable Parts, Circuit Boards and Chassis
73
Figure 5-2: WVR6020, WVR7020, and WVR7120 Replaceable Cables, Connectors, and Other Mechanical
75
Figure 5-3: Main Board Replaceable Components and Connectors, WVR7020, WVR7120, and WVR6020
77
Wvr6020
77
Figure 5-4: Option EYE/PHY and Audio Options Boards and Connectors
79
Figure 5-5: Audio Board Component-Side Components, Options AD and DDE
81
Figure 5-6: Audio Board Back-Side Components, Options AD and DDE
83
Figure 5-7: WVRRFP
85
Figure 5-8: Analog Audio Breakout Cable Assembly
86
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