LG T5100 Service Manual page 65

3. BASEBAND PART TROUBLE SHOOTING
Camera Trouble
START
Does the LCD itself have
no trouble?
Set the camera button ON
Check Power Source
2.8V & 1.8V
YES
C_MCLK waveform?
Check the C_PCLK
Check the C_VSYNC
Check the C_HSYNC
Check CN502 soldering?
flat cable of camera module?
Camera module is out of
order
NO
YES
YES
NO
NO
YES
YES
NO
YES
NO
YES
Go to the LCD
Check U601
2V8_CAM
YES
Check U708
1.8V
X200 ?
YES
U200 ?
Resolder CN502
Change the camera
module
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NO
Change U601
NO
Change U708
NO
X200 is out of order
Chan ge the X200
NO
U200 is out of order
Change the U200