LG KG800 - Page 76

4. TROUBLESHOOTING
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START
No
Voltage the pin 9 of U103
Is 2.8V?
Yes
Re-solder U103
Check the All Connectors
At Main, Slide PCB
No
Reconnect
All Connectors
Yes
Paths of LCD control
signals are OK?
No
Re-solder
the EMI filter
After changing the board,
LCD Display is OK?
No
The board is broken.
Change the board.
Yes
LCD Module is out of order.
Change the LCD Module.
Yes
FPCB is OK?
No
Replace the FPCB
Yes
Checking Flow