Sony Xperia S LT26i Troubleshooting Manual page 20

Problem Areas: Microphone
Check:
Inspect the Mic on the PBA Bottom.
Action:
If the Mic is damaged – replace the PBA Bottom.
Check:
Inspect five pins on the PBA Bottom and five pins on the
FPC Main Assy and the ten pads on the Cover Transparent
Assy.
Action:
If dirty – clean them.
Check:
Inspect the PBA Bottom five pins.
Action:
If the PBA bottom five pins are damaged – replace the PBA
bottom.
1257-2931 Rev 6
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Sony Mobile Communications AB – Company Internal
Trouble Shooting Guide Repair Instruction Mechanical/
20(57)