Samsung SM-A507FN Service Manual page 94

8. Level 3 Repair
8-4-18. VT CAMERA
"Camera" function does not work
Check the Camera connector on Main
Check the voltage
C7021 : 1.05V
C7014 : 1.9V
Check the VTCAM_MCLK is
26MHz (R7005)
Replace the Front camera module
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Yes
PBA
Yes
Y
es
No
Yes
Yes
END
No
Reconnect the HDC7002
No
Resolder or Replace U7003
No
Replace the PBA