Sony C2104 - Page 15

Troubleshooting Guide (mech)
1273-2281 Rev2
 Sony Mobile Communications AB –
Company Internal
15(48)
Problem Areas
Check:
Inspect the Loudspeaker’s pins and the pads on the Sub
PBA Assembly.
Action:
1. If dirty – clean them.
2. If the pins of the Loudspeaker are damaged – replace the
Loudspeaker.
Check:
Inspect the BtB connectors of Side Key FPC on both Sub
PBA Assembly and Main PBA.
Action:
1. If not properly connected – disconnect and reconnect.
2. If dirty or oxidized – clean it.
3. If the pads or the BtB connector of the Sub PBA
Assembly is damaged – replace the Sub PBA Assembly.