Ear-Mic Headset Hsor/Hsol Trouble Shooting - LG GD330 Service Manual

4. TROUBLE SHOOTING

4.15. Ear-Mic Headset HSOR/HSOL Trouble Shooting

START
Check the resistance between
HSOUTR/L & GND of the Headset.
16 0hm ±15%?
YES
Disassemble the rear case of phone.
Connect the Ear-Mic Headset to the Ear-Mic
Socket.
Check the soldering status
FB304,FB305,IC200,C304,C305,
C235,C236,R225,R226
Is it O.K?
YES
The main_PCB has a
Problem,
Change the main_PCB.
CN301
C305
C304
LGE Internal Use Only
NO
Ear-Mic Headset has a problem.
Exchange the Ear-Mic Headset
NO
Re-solder
FB304,FB305,IC200,C304,C305,
C235,C236,R225,R226
FB304
FB305
- 84 -
IC200
R225
C235
R226
C236
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