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Checking Flow
START
Power is supplied to
the board?
Yes
Connection between
FPCB and boards is OK?
Yes
CN601& CN102
is soldered well?
Yes
Paths of LCD control
signals are OK?
Yes
FPCB is OK?
Yes
Connection between
FPCB&LCD Module is OK?
Yes
After changing the board,
LCD Display is OK?
Yes
LCD Module is out of order.
Change the LCD Module.
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4. TROUBLESHOOTING
No
Refer to
Power On Trouble
No
Reconnect
FPCB
No
Re-solder the CN601
& CN102
No
Re-solder
the EMI filter
No
Replace the FPCB
No
Resolder
The CN101 of FPCB
No
The board is broken.
Change the board.
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