Ear-Mic Jack Detection Trouble Shooting - LG GD330 Service Manual

4.12. Ear-Mic Jack Detection Trouble Shooting

START
Disassemble the rear case of phone.
Connect the Ear-Mic Headset to the
Ear-Mic Socket of phone.
Check the soldering status
Of CN300. Is it O.K?
YES
The main_PCB has a
Problem,
Change the main_PCB.
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Only for training and service purposes
NO
Re-solder TP1
CN300
TP1
- 81 -
4. TROUBLE SHOOTING
of CN300
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