LG RH4820W Manuals

LG RH4820W Manuals

Manuals and User Guides for LG RH4820W. We have 1 LG RH4820W manual available for free PDF download: Service Manual

LG RH4820W Service Manual

LG RH4820W Service Manual (150 pages)

HDD/DVD RECORDER

Brand: LG | Category: DVD Recorder | Size: 16.58 MB

Table of Contents

Section 1 Summary

3
Section 2 Cabinet & Main Chassis

9
- Exploded Views
  10
Section 3 Electrical

13
- Electrical Troubleshooting Guide
  14
- Hdr Part
  14
- Section
  14
- Block Diagrams
  27
  - Overall Block Diagram
    27
  - In/Out Block Diagram
    28
  - Video Block Diagram
    29
  - Video Sw Path Block Diagram
    30
  - Audio Block Diagram
    31
  - Audio Sw Path Block Diagram
    32
  - FLD / Μ-COM BLOCK DIAGRAM
    33
  - Power : Main Board Block Diagram
    34
  - Power : I/O Board Block Diagram
    35
  - Layout Connection Block Diagram
    36
  - Smps Block Diagram (Part 1)
    37
  - Smps Block Diagram (Part 2)
    38
- Circuit Diagrams
  39
- Printed Circuit Diagrams
  54
  - Main P.C.board(Top Side)
    54
  - Main P.C.board(Bottom Side)
    55
  - I/O P.C.board
    56
  - Jack P.C.board
    56
  - Front P.C.board
    57
  - Key P.C.board
    57
  - Power P.C.board
    58
- Electrical Troubleshooting Guide
  59
- Rl-01A Loader Part
  59
- Block Diagrams & Description
  73
- Waveforms
  92
  - Power & Reset Signal
    92
  - Main Clock1 for Ic202 (16.9Mhz)
    92
  - Main Clock2 for Ic302 (20Mhz)
    93
  - Sdram Clock
    93
  - Tray Open/Close Signal 1
    94
  - Tray Open/Close Signal 2
    94
  - Sled Move Signal 1
    95
  - Sled Move Signal 2
    95
  - Focus Search Signal
    96
  - Laser Turn on Signal
    96
  - Disc Type Judgement Waveform (CD Series)
    97
  - Disc Type Judgement Waveform (CD&CD-R)
    97
  - Disc Type Judgement Waveform (CD-Rw)
    98
  - Disc Type Judgement Waveform (DVD Series)
    98
  - Disc Type Judgement Waveform (Dvd_Single&R)
    99
  - Disc Type Judgement Waveform (DVD
    99
  - Disc Type Judgement Waveform (Dvdrw)
    100
  - Spindle Waveform1
    100
  - Spindle Waveform2
    101
  - Focus on Signal(CD)
    101
  - Focus on Signal(DVD)
    102
  - Focus on Signal (DVD)
    103
  - Track off Signal(CD)
    103
  - Track off Signal(DVD)
    104
  - Tilt Driver Signal(Disc Reading)
    104
  - Rf Waveform(DVD)
    105
  - Rf Waveform(CD)
    105
  - Wobble(DVD-R/Rw)_Reading
    106
  - Wobble(DVD+R/Rw)_Reading&Writing =>X1 Speed
    106
  - Ld Enable(DVD)
    107
  - Ld Enable(CD)
    107
  - Laser Power(Reading)_Dvd+Rw
    108
  - Laser Power(Erase)_Dvd+Rw
    108
  - Laser Power(Writing)_Initial State
    109
  - Laser Power(Writing)_Processing
    109
- Circuit Diagrams
  111
  - Rf Circuit Diagram
    111
  - Dsp Circuit Diagram
    112
  - Μ-COM CIRCUIT DIAGRAM
    113
- Printed Circuit Diagrams
  114
  - Main P.C.board(Top Side)
    114

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