LG KG290 - Page 78

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4. TROUBLE SHOOTING
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Does the LCD itself
Has no trouble ?
YES
NO
Replace the U401
Change the camera
module, Does it work
properly ?
YES
Itís camera moduleís problem
Replace the camera module
Check the voltage
of pin 8 of
U401 is 2.8V ?
YES
Check the signals of the
FL400~FL403
YES
Camera will work properly
NO
Check the voltage
of pin 1 of
U401 LOW ?
NO
YES
Go to the LCD trouble
Replace
FL400~FL403
NO
CHECKING FLOW