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4. Trouble Shooting
4.14 Ear-Mic Hook Detection Trouble Shooting
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Ear-Mic Headset has a
problem.
Exchange the Ear-Mic
Headset
NO
Press the HOOK Button.
Is the status of FB300 LOW?
Re-solder
C307,C308,L303,U302
NO
Disassemble the rear case of phone.
Connect the Ear-Mic Headset
to the Ear-Mic Socket of phone.
Check the soldering status
Of C307,C308,L303,U302
U103(DBB) is broken.
Change the board.
START
YES
YES
Summary of Contents for KM710
Page 1: ...Date May 2008 Issue 1 0 Service Manual Model KM710c Service Manual KM710c Internal Use Only ...
Page 173: ...Note ...
Page 174: ...Note ...