LG KS20 - Camera Troubleshooting

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Only for training and service purposes
4. TROUBLE SHOOTING
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4.14 Camera Troubleshooting
Camera control signals are generated by MSM7200.
4.14.1 2M AF CAMERA
Start
VCAM_2.6V(FB600, FB601,
FB602 or C721) is 2.6V?
Yes
NO
ENDCamera is OK?
Check the camera connector and
reconnect the camera
Change the Sub board
Camera is OK
Check the CAM_MCLK
Change the camera
Yes
Yes
NO
NO
NO
END
Yes
(R621)
Change the Sub board
VCAM_1.8V(C722)
is 1.8V?
Change the Sub board
Yes
NO
Check an U100 SMT status
by X-ray
Exchange U100 or
Change the Main board
And Retest