CHECKING FLOW
START
Does the LCD itself
Has no trouble ?
YES
Change the camera
module, Does it work
properly ?
YES
Itís camera moduleís problem
Replace the camera module
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Only for training and service purposes
NO
Go to the LCD trouble
Check the
voltage
NO
of TP1 is 2.8V ?
and
Voltage of TP2
of U404 is
1.8V ?
YES
Check the signals of the
FL400,FL401,FL402
YES
Camera will work properly
- 67 -
4. TROUBLE SHOOTING
NO
Is the voltage at
TP3 high?
YES
Replace
U404
NO
Replace
FL400,FL401,FL402
NO
Replace
U400
LGE Internal Use Only