LG GSA-4165B User Manuals

Table of Contents

• INTRODUCTION

  3
• FEATURES

  3
• SPECIFICATIONS

  6
• LOCATION OF CUSTOMER CONTROLS

  10
• DISASSEMBLY

  12
• 1. CABINET and CIRCUIT BOARD DISASSEMBLY

  12
• 1-1. Bottom Chassis

  12
• 1-2. Front Bezel Assy

  12
• 1-3. Cabinet and Main Circuit Board

  12
• 2. MECHANISM ASSY DISASSEMBLY

  12
• 2-1. Pick-up Unit

  12
• 2-2. Pick-up

  13
• EXPLODED VIEW

  14
• MECHANICAL REPLACEMENT PARTS LIST

  16
• GLOSSARY

  19
• THE DIFFERENCES OF CD-R/CD-RW DISCS AND GENERAL CD-ROM

  20
• 1. Recording Layer

  20
• 2. Disc Specification

  20
• 3. Disc Materials

  21
• 4. Reading Process of Optical Disc

  22
• 5. Writing Process of CD-R Disc

  23
• 6. Writing Process of CD-RW Disc

  23
• 7. Organization of the PCA, PMA and Lead-in Area

  24
• 8. Function of PCA and PMA area

  25
• 9. OPC and ROPC

  25
• 10. Writing Process of DISC

  26
• THE DIFFERENCES OF DVD-R/RW, DVD+R/RW DISCS AND DVD-ROM

  27
• 1. Recording Layer

  27
• 2. Disc Specification

  28
• 3. Disc Materials

  28
• 4. Writing Pulse Waveform of DVD+R

  31
• 5. Writing Pulse Waveform DVD+RW

  33
• 6. Organization of Inner Drive Area, Outer Drive Area, Lead-in Zone and Lead-out Zone

  34
• LightScribe MEDIA

  36
• 1. LightScribe Media

  36
• 2. Hardware Block Diagram of LightScribe Label Printing

  37
• 3. MD Assy For LightScribe

  38
• 4. Optical Encoder Assy

  39
• DVD & CD DATA PROCESSING

  40
• 1. Data Processing Flow

  40
• 2. Copy Protection and Regional Code Management Block

  41
• 3. About Prevention the DVD-ROM from to be copy

  42
• 4. About the DVD-ROM Regional Code

  43
• INTERNAL STRUCTURE OF THE PICK-UP

  44
• 1. Block Diagram of the Pick-up(HOP-7632TS)

  44
• 2. Pick up Pin Assignment

  45
• 3. Signal detection of the P/U

  46
• DESCRIPTION OF CIRCUIT

  47
• 1. ALPC Circuit

  47
• 2. Focus Circuit

  49
• 3. Tracking & Sled Circuit

  50
• 4. Spindle Circuit

  53
• MAJOR IC INTERNAL BLOCK DIAGRAM AND PIN DESCRIPTION

  55
• TROUBLESHOOTING GUIDE

  73
• BLOCK DIAGRAM

  91
• PRINTED CIRCUIT BOARD DIAGRAM

  92
• ELECTRICAL REPLACEMENT PARTS LIST

  97
• -ON/OFF cycles per year

  600