Ambient Light Sensor; Light Sensor Malfunctions - Sony Xperia Z C6602 Troubleshooting Manual

Problem Areas

1.19 Ambient Light Sensor

1.19.1 Light Sensor malfunctions

Check:
Inspect the external window area of light sensor on the Front
Assembly.
Action:
1. If clogged – clean it.
2. If scratched or damaged – replace the Front Assembly.
Check:
Inspect the BtB connector of FPC Assembly Top RoW and
the BtB connector on the Main PBA.
Action:
1. If not properly connected – disconnect and reconnect.
2. If dirty or oxidized – clean it.
Check:
Inspect the FPC Assembly Top RoW.
Action:
1. If the light sensor is dirty – clean it.
2. If the FPC Assembly Top RoW is damaged – replace it.
3. Replace Main PBA.
1273-1793 Rev 3
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