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Sony Manuals
CD/CDR Drive
CDU31A Series
Service manual
Table Of Contents - Sony CDU31A Series Service Manual
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Table Of Contents
95
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
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Table of Contents
Table Of Contents
2
Grounding For The Human Body
3
Grounding For The Work Table
3
Introduction
4
Configuration Of Service Manual
4
Caution
4
Precautions
4
Tools And Measuring Instruments
6
General And Special Tool List
6
General Tools
6
Expendable And Chemical Supplies
6
Special Tools
7
S/A Attachment Tool
7
S/A Attachment Tool Configuration
7
S/A Attachment Tool Function
7
Fixture Cd1
9
Ps/2 System Setting And Configuration
10
Troubleshooting
12
Before Troubleshooting
12
Flowchart For Troubleshooting
12
Procedure Of Atp Test
13
Pre-Setting
13
Test Procedure
14
To Execute Atp Test Of The Drive
14
Edit Test Condition
15
To Edit Any Test Conditions
15
To Quit
16
To Save The New Parameter
16
Drive Function Check
17
Power On
17
Tray Open
17
Bus Check
17
Loading Mechanism
18
Spin Up
19
Audio Play
20
Part Replacement
21
Easy Reference Chart
21
Bottom Plate Replacement
22
Front Panel Ass'y Replacement
22
Ornamental Tray Plate Replacement
22
Ma-1/Ma-2 Mounted Board Replacement
23
Optical Device Replacement
23
Tension Spring Removal
23
Tray Removal
24
Guide Removal
24
Tray Frame Ass'y Removal
25
Main Frame Ass'y Installation
25
Tray Installation
25
Check And Adjustment
27
Electrical Adjustment
27
Special Tools And Measuring Equipment
27
Test Mode Menu
28
Ef Balance
29
Ef Balance Adjustment
29
Ef Balance Waveform
29
Focus Servo Loop Gain
30
Focus Servo Loop Gain Adjustment
30
Tracking Servo Loop Gain
31
Tracking Servo Loop Gain Adjustment
31
Focus Bias
32
Focus Bias Adjustment
32
Rf Level (Laser Power) And Laser Current
33
Measurement
33
Optical Device Cleaning
34
Cleaning With Lens Cleaner
34
Exploded Views And List
35
Mechanical Ass'y Location
35
Overall Ass'y
35
Packing Material
39
Block Diagrams
40
Part Layout And Circuit Diagram
42
Semiconductor Location
42
Component Side
42
Pattern Side
42
Semiconductors Pin Assignment
44
Top View
52
Procedure Of Outgoing Test
54
Exercizer Program
54
Type Of Error
58
Sum Error
58
Address Error
58
Hardware Error
58
Error Code
59
Attention Code
59
Circuit Diagram On Ma-I Mounted Board
65
Circuit Diagram On Ma-2 Mounted Board
73
Electric Parts List
81
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This manual is also suitable for:
Cdu31a-01
Cdu-541-51
Cdu-541-81
Cdu31a-gw
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