LG C3380 Service Manual page 76

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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 12 of
CN601 if 3V ?
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
Q400 is 3V ?
YES
NO
Check the soldering
of CN601 ?
YES
Does the image
appears on LCD ?
NO
Replace
FL605~FL608
- 77 -
4. TROUBLE SHOOTING
Replace the U401
NO
NO
Check the voltage
of pin 1 of Q400 (C_PWDN)
LOW ?
YES
Replace the Q400
NO
Replace the Q400
YES
Camera will work properly

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