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Checking Flow
LCD Module is out of order.
Change the LCD Module.
START
Voltage the pin 9 of U103
Is 2.8V?
Yes
Check the All Connectors
At Main, Slide PCB
Yes
Paths of LCD control
signals are OK?
Yes
FPCB is OK?
Yes
After changing the board,
LCD Display is OK?
Yes
- 77 -
4. TROUBLESHOOTING
No
Re-solder U103
No
Reconnect
All Connectors
No
Re-solder
the EMI filter
No
Replace the FPCB
No
The board is broken.
Change the board.
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