Sony Xperia C3 Dual Test Instructions page 19

Problem Areas: Speaker
Check:
Inspect the contact pins on the Main FPC Assy and the
contact pads on the Ant Speaker Bottom Frame Assy.
Action:
1. If dirty – clean them.
2. If the contact pads of the Ant Speaker Bottom Frame
Assy or the Loudspeaker are damaged – replace Ant
Speaker Bottom Frame Assy.
3. If the contact pins on the Main FPC Assy are damaged -
replace the Main FPC Assy.
Check:
Inspect the BtB connector of Main FPC Assy to Main PBA.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean it.
1290-1679 Rev 3
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Troubleshooting Guide (mech)
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