LG S5000 Service Manual page 75

4. TROUBLE SHOOTING
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
Check the voltage of pin 22 of
CN601 if 3V ?
YES
Check the signals of the
FL605~FL608
YES
Check the signals of the
FL605~FL608
YES
Camera will work properly
NO
Go to the LCD trouble
NO
Check the voltage
of pin 3 of
U406 is 3V ?
YES
NO
Check the soldering
of CN601 ?
YES
Does the image
appears on LCD ?
NO
Replace
FL605~FL608
- 76 -
Replace the U400
NO
NO
Check the voltage
of pin 1 of
U406 LOW ?
YES
Replace the U406
NO
Replace the U406
YES
Camera will work properly