Ear-Mic Headset Hsor/Hsol Trouble Shooting - LG KE590 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
R303,R304,C307,C308,C309,
C310 Is it O.K?
The main_PCB has a
Change the main_PCB.
LGE Internal Use Only
START
±
16 0hm 15%?
YES
NO
YES
Problem,
- 96 -
Ear-Mic Headset has a
NO
problem.
Exchange the Ear-Mic
Headset
YES
Re-solder
C307,C308,C309,C310
NO
Re-solder
R303,R304,C307,C308,C309,
C310
R303
Copyright © 2007 LG Electronics. Inc. All right reserved.
C308
C310
R304
C309
C307
Only for training and service purposes