LG LG9200 Service Manual page 70

Camera Trouble (6)
START
No
Does the LCD itself has no
trouble?
Yes
No
Change
the Camera module.
Does it work properly?
Yes
Itís Camera moduleís problem.
Replace the Camera module.
Go to the LCD trouble
No
Check the voltage of
Pin3 of Q701 is 2.85V
Yes
Check the voltage of No
Resolder R723,R25
Pin19,20 of CN70
Yes
Check
No
the other signals of the CN701.
Is it OK?
Yes
Does the image
No
Appears on LCD?
Yes
Camera will work properly.
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4. TROUBLE SHOOTING
No
Check the voltage of
Change the Q701
Pin1 of Q701 is 0V
Check
No
the soldering of the CN701.
Resolder CN701
Is it OK?
Yes
Check
No
the soldering of
serial resisters of CN701
Is it OK?
Yes
No
Does the image
Change the main board
Appears on LCD?
Yes
Camera will work properly.
Resolder the resisters