Sony C2104 - Microphone; Main Microphone

Troubleshooting Guide (mech)
1273-2281 Rev2
 Sony Mobile Communications AB –
Company Internal
18(48)
Problem Areas
1.8 Microphone
1.8.1 Main Microphone
Check:
Inspect the Microphone’s external port on the Front Housing
LCM TP Assembly
Action:
If clogged – clean the port.
Check:
Inspect the Rubber hole locating direction for Main MIC.
Action:
1. If clogged – clean it.
Check:
Inspect the microphone on the Sub PBA Assembly and the
Mic mesh on the Front Housing LCM TP Assembly
Action:
1. If dirty – clean them.
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.