LG LG9200 Service Manual page 42

4.1.2 LCD Display Trouble (1)
CN301
Main PCB
• LCD Control Signals From Main Board
- MAIN_CS, LCD_ID, _WR, LCD_RESET, A(1),LEDB, DATA(0)~DATA(15)
• Check Points
- The Assembly status of the LCD Module.
- The Soldering of connectors
- The FPCB which connects the LCD module with the main board.
• Trouble Shooting Setup
- Connect PIF, and power on.
If the FPCB has a problem,
the control signals for LCD cannot
be transmitted properly.
CN901
FPCB
Check soldering
around connector
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4. TROUBLE SHOOTING
CN801
Slide PCB