Troubleshooting Guide (mech)
1261-4721 Rev 3
Sony Mobile Communications AB
– Company Internal
7(62)
Problem Areas: Keys
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 key camera switch, the FPC or the BtB connector of
FPC Bottom Flex is damaged
– replace the FPC Bottom
Flex.
4. Replace board.
1.2.3 Key Volume
Check:
Inspect the Key Volume.
Action:
1. If dirty
– clean it.
2. If damaged
– replace it.
