Ear-Mic Headset Hsor/Hsol Trouble Shooting - LG KE500 Service Manual

4. TROUBLE SHOOTING

4.16 Ear-Mic Headset HSOR/HSOL Trouble Shooting

Check the resistance between
HSOR/L & GND of the Headset.
Disassemble the rear case of phone.
Connect the Ear-Mic Headset to the Ear-
Mic Socket.
Did you hear TDMA noise?
Check the soldering status
L301,L302,C308,R310,R312
Is it O.K?
The main_PCB has a
Change the main_PCB.
START
+ _
16 0hm 15%?
YES
NO
YES
Problem,
Ear-Mic Headset has a
NO
problem.
Exchange the Ear-Mic
Headset
YES Re-solder
C304,C305,C306,C307
Re-solder
NO
L301,L302,C304,C305,C306,
C307
C308
R312
R310 L301
- 96 -
L302