LG RV7922M Manuals

Manuals and User Guides for LG RV7922M. We have 1 LG RV7922M manual available for free PDF download: Service Manual

LG RV7922M Service Manual

LG RV7922M Service Manual (192 pages)

Brand: LG | Category: Media Player | Size: 15.72 MB

Table of Contents

Section 1 Summary

2
- Table of Contents
  2
- Product Safety Servicing Guidelines for Video Products
  3
- Servicing Precautions
  4
- Introduction
  5
- Specifications
  6
- System S/W Upgrade
  8
- Test S/W
  9
Section 3 Electrical

15
- Electrical Troubleshooting Guide
  
  16
  - Power(Smps) Circuit
    16
  - System Part Circuit
    17
  - Video Part-1
    19
  - Ypbpr Video Output Troubleshooting
    20
  - S-Video Video Output Troubleshooting
    21
  - Cvbs Video Output Troubleshooting
    22
  - Audio Troubleshooting
    23
  - Tuner Troubleshooting
    24
  - Ethernet Troubleshooting
    25
  - Modem Troubleshooting
    26
  - DVD Troubleshooting
    27
  - Ir Blaster Troubleshooting
    28
  - Serial (Rs-232) Troubleshooting
    29
- Waveforms
  
  30
  - System Part-1
    30
  - System Part-2
    31
  - Video Part-1
    32
  - Video Part-2
    33
  - Video Part-3
    34
  - Video Part-4
    35
  - Audio Part-1
    36
  - Audio Part-2
    37
  - Audio Part-3
    38
  - Ethernet Part
    39
  - Super Io & Front Interface Part
    40
- Block Diagrams
  
  41
  - Total Block Diagram
    41
  - Wring Block Diagram
    42
  - Power Block Diagram
    43
  - Signal Path Block Diagram
    44
  - Block Diagram
    45
- Circuit Diagrams
  
  47
- Printed Circuit Diagrams
  
  61
Section 4 Rl-05 Loader Part

65
- Electrical Troubleshooting Guide
  
  66
- Waveforms
  
  80
  - Power & Reset Signal
    80
  - Main Clock1 for Ic202 (16.9Mhz)
    80
  - Sdram Clock
    81
  - Tray Open/Close Signal 1
    81
  - Tray Open/Close Signal 2
    82
  - Sled Move Signal 1
    82
  - Sled Move Signal 2
    83
  - Focus Search Signal
    83
  - Laser Turn on Signal
    84
  - Disc Type Judgement Waveform (CD Series)
    85
  - Disc Type Judgement Waveform (CD&CD-R)
    85
  - Disc Type Judgement Waveform (CD-Rw)
    86
  - Disc Type Judgement Waveform (DVD Series)
    86
  - Disc Type Judgement Waveform (Dvd_Single&R)
    87
  - Disc Type Judgement Waveform (DVD
    87
  - Disc Type Judgement Waveform (Dvdrw)
    88
  - Spindle Waveform1
    88
  - Spindle Waveform2
    89
  - Focus on Signal(CD)
    89
  - Focus on Signal(DVD)
    90
  - Track off Signal(CD)
    91
  - Track off Signal(DVD)
    92
  - Tilt Driver Signal(Disc Reading)
    92
  - Rf Waveform(DVD)
    93
  - Rf Waveform(CD)
    93
  - Wobble(DVD-R/Rw)_Reading
    94
  - Wobble(DVD+R/Rw)_Reading&Writing =>X1 Speed
    94
  - Ld Enable(DVD)
    95
  - Ld Enable(CD)
    95
  - Laser Power(Reading)_Dvd+Rw
    96
  - Laser Power(Erase)_Dvd+Rw
    96
  - Laser Power(Writing)_Initial State
    97
  - Laser Power(Writing)_Processing
    97
- The Difference of DVD-R/Rw, DVD+R/Rw Discs and DVD-Rom
  
  98
- How to Use Test Tool
  
  107
- Block Diagrams
  
  115
  - Overall Block Diagram
    115
  - Dsp Block Diagram
    116
  - Μ-COM BLOCK DIAGRAM
    117
  - Rf Block Diagram
    118
- Circuit Diagrams
  
  119
  - Rf1 Circuit Diagram
    119
  - Dsp Circuit Diagram
    120
  - Μ-COM CIRCUIT DIAGRAM
    121
- Circuit Voltage Chart
  
  122
- Printed Circuit Diagrams
  
  123
  - Main P.C.board
    123

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