Troubleshooting Guide (mech)
1266-5087 Rev 1
Sony Mobile Communications AB
– Company Internal
34(57)
Problem Areas
1.18 Ambient Light Sensor
1.18.1 Light Sensor malfunctions
Check:
Inspect the external window area of light sensor on the
Cover Front Assy.
Action:
1. If clogged
– clean it.
2. If scratched or damaged
– replace the Cover Front Assy.
Check:
Inspect the BtB connector of the RCV Flex FPC to the PBA.
Action:
1. If not properly connected
– disconnect and reconnect.
2. If dirty or oxidized
– clean it.
Check:
Inspect the light sensor on the RCV Flex FPC.
Action:
1. If dirty
– clean it.
2. If the light sensor or the BtB connector of the RCV Flex
FPC is damaged
– replace the RCV Flex FPC.
3. Replace board.
