Samsung Galaxy Tab 4 Service Manual page 38

8-3-10. 3M CAM
"Camera" function does not work
Check the Camera
connector on Main PBA
Check the voltage
Check the voltage
Check the I2C line
R328, R329 = HIGH
Replace the camera module
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Yes
Yes
C672 = 1.8V?
C673 = 2.8V?
Yes
C674 = 1.3V ?
Yes
Yes
Yes
END
No
Reconnect the HDC670
No
Resolder or Replace U401
No
No Resolder R328, R329
Replace the PBA
8-22
Level 3 Repair
Resolder U401
Replace the PBA