Earphone - Sony C2305 Troubleshooting Manual

Problem Areas
1.7

Earphone

1.7.1 Earphone
Check:
Inspect the Receiver's external port on the Front Cover LCM
TP Assy
Action:
1. If clogged – clean it.
2. If the port is damaged – replace the Front Cover LCM TP
Assy.
Note: Calibrate the P-sensor/L-sensor 1277-0611
Trouble Shooting Application – mechanical whenever replacing
Front Cover LCM TP Assy or Main Board swap.
Check:
Inspect the Receiver's pins and the contact pads on the
main PBA.
Action:
1. If dirty or oxidized – clean it.
2. If the pins of the Receiver are damaged – replace the
Receiver.
3. Replace Main PBA.
Note: Calibrate the P-sensor/L-sensor 1277-0611
Trouble Shooting Application – mechanical whenever replacing
Front Cover LCM TP Assy or Main Board swap.
1275-8442 Rev1
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Sony Mobile Communications AB – Company Internal
Troubleshooting Guide (mech)
17(45)