LG DF9912EH Manuals

Manuals and User Guides for LG DF9912EH. We have 1 LG DF9912EH manual available for free PDF download: Service Manual

LG DF9912EH Service Manual

LG DF9912EH Service Manual (82 pages)

Brand: LG | Category: DVD Player | Size: 5.88 MB

Table of Contents

Section 1 Summary

3
Section 2 Cabinet & Main Chassis

7
Section 3 Electrical

11
- Electrical Troubleshooting Guide
  12
- Power Check Flow
  12
- System Operation Flow
  13
- Test & Debug Flow
  14
- Details and Waveforms on System Test and Debugging
  20
- SYSTEM 27Mhz CLOCK,RESET,FLASH R/W SIGNAL
  20
- Loading Control Related Signal
  22
- Sdram Clock
  22
- Lens Control Related Signal(no Disc Condition)
  23
- Sled Control Related Signal(no Disc Condition)
  23
- Disc Type Judgement Waveform
  24
- Laser Power Control Related Signal(no Disc Condition)
  24
- Focus on Waveform
  26
- Spindle Control Waveform
  27
- TRACKING CONTROL RELATED SIGNAL(System Checking)
  28
- Mt1389B Audio Optical and Coaxial Output (Spdif)
  29
- Mt1389B Video Output Waveform
  29
- Mt1389B Audio Output to Audio Dac
  30
- Audio Output from Audio Dac
  31
- Memory Slot Data Signal
  31
- Memory Clock & Reset Signal
  32
- Block Diagrams
  33
- Overall Block Diagram
  33
- Power(Smps) Block Diagram
  34
- SERVO Block Diagram
  35
- MPEG & MEMORY Block Diagram
  36
- VIDEO & AUDIO Block Diagram
  37
- Circuit Diagrams
  38
- Power(Smps) Circuit DIAGRAM
  38
- AV/JACK Circuit DIAGRAM
  39
- SYSTEM Circuit DIAGRAM
  40
- IN 2 MEMORY SLOT Circuit DIAGRAM
  41
- TIMER Circuit DIAGRAM
  42
- 1CH & KARAOKE(KARAOKE MODEL ONLY) Circuit DIAGRAM
  43
- SCART Circuit DIAGRAM
  44
- Circuit Voltage Chart
  45
- Main P.C.board
  46
- Printed Circuit Diagrams
  46
- Key P.C.board
  47
- Timer P.C.board
  47
- Memory P.C.board
  48
- Smps P.C.board
  48

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