LG GSA-H21A Manuals

Manuals and User Guides for LG GSA-H21A. We have 1 LG GSA-H21A manual available for free PDF download: Service Manual

LG GSA-H21A Service Manual

LG GSA-H21A Service Manual (86 pages)

Super-Multi DVD Rewriter

Brand: LG | Category: DVD Drive | Size: 2.2 MB

Table of Contents

Table of Contents
2
Introduction
3
Features
4
Specifications
5
Location of Customer Controls
13
Disassembly
15
CABINET and CIRCUIT BOARD DISASSEMBLY
15
Mechanism Assy Disassembly
16
Mechanical Replacement Parts List
16
Exploded View
17
Glossary
18
The Differences of CD-R/CD-Rw Discs and General CD-Rom
19
Recording Layer
19
Disc Specification
19
Disc Materials
20
Reading Process of Optical Disc
21
Writing Process of CD-R Disc
22
Writing Process of CD-RW Disc
22
Organization of the PCA, PMA and Lead-In Area
23
Function of PCA and PMA Area
24
OPC and ROPC
24
Writing Process of DISC
25
The Differences of DVD-R/Rw, DVD+R/Rw Discs and DVD-Rom
26
Recording Layer
26
Disc Specification
27
Disc Materials
27
Writing Pulse Waveform of DVD+R
30
Writing Pulse Waveform DVD+RW
32
Organization of Inner Drive Area, Outer Drive Area, Lead-In Zone and Lead-Out Zone
33
Lightscribe MEDIA
35
Hardware Block Diagram of Lightscribe Label Printing
36
MD Assy for Lightscribe
37
Optical Encoder Assy
38
DVD & CD Data Processing
39
Data Processing Flow
39
Copy Protection and Regional Code Management Block
40
About Prevention the DVD-Rom from to be Copy
41
About the DVD-ROM Regional Code
42
Internal Structure of the Pick
43
Block Diagram of the Pick-Up
43
Pick up Pin Assignment
44
Signal Detection of the P/U
45
Description of Circuit
46
ALPC Circuit
46
Focus/Tracking/Sled Servo Circuit
47
Spindle Circuit
49
Major IC Internal Block Diagram and Pin Description
51
Troubleshooting Guide
69
How to Use Test Tool
81
Dragon
81
Camus
85
Block Diagram
86

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