Camera Trouble - LG F1200 Service Manual

4. TROUBLE SHOOTING

• Camera Trouble

START
Does the LCD itself has
no trouble?
YES
Set the camera button ON
Check Power Source 2.80V
NO
Check the Soldering
The CN400
Check the CAM_MCLK
Is no signal in TP68,
TP69, TP70
Check R432, R436,
R447, R449
YES
Camera is Disodrder
Cange Camera
NO
NO
NO
NO
NO
YES
NO
Go to the LCD
Check 2.8V_DSP
Resoldering CN400
DSP is out of order Change U507
YES
Is no signal in TP67
Change U4
- 60 -
Change U500
YES
NO
Check Q401
NO
Change Q401