LG VX9100 Service Manual page 107

VX9100
Check the voltage at pin4 of
CON300 Whether its range is
1.8~2.2V
When Headset is inserted
Check EAR_JACK_SENSE/ is low?
4
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Only for training and service purposes
Checking Flow: Headset detect problem
Checking Flow: Headset detect problem
1
YES
NO
YES
NO
YES
Check the soldering of CON300
YES
Resolder CON300 with heat gun
Redownload S/W
- 106 -
Replace CON300
NO
Replace MSM or B/D
NO
LGE Internal Use Only