Troubleshooting Guide (mech)
1261-4721 Rev 3
Sony Mobile Communications AB
– Company Internal
22(62)
Problem Areas: Microphone
3.
If the Rubber Mic is damaged
–replace it.
Check:
Inspect the BtB connector of FPC Bottom Flex to the PBA.
Action:
1. If not properly connected
– disconnect and reconnect.
2. If dirty or oxidized
– clean the both sides of the BtB
connector.
3. If the BtB connector or the Microphone of FPC Bottom
Flex is damaged
– replace the FPC Bottom Flex.
4. Replace board.