Troubleshooting Guide (mech)
1277-1356 Rev 2
© Sony Mobile Communications AB – Company Internal
20(45)
Problem Areas: Microphone
1.8.2 Secondary Microphone
Check:
Inspect the secondary microphone's external port on the
Battery Cover Assy.
Action:
1. If clogged – clean the port.
Check:
Inspect the 2
nd
Microphone Rubber (a) on the Rear Cover
and the 2
nd
Microphone (b) on the Main PBA.
Action:
1. If dirty – clean them.
Liquid is not allowed!
2. If the 2
nd
Microphone Rubber is damaged – replace it.
3. Replace the Main PBA.
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