Only For Training And Service Purposes - LG KP175 Service Manual

CHECKING FLOW
SETTING : After initialize Agilent 8960, Test EGSM, DCS mode
START
Check the
Voltage VMIC 2.5V
YES
Check the signal
Level at each side
of MIC201.
Is it a few tens
mV AC?
YES
Check the soldering of
C227,C228,C223
R219,R216
YES
Microphone will work
properly.
Copyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

NO
Change the U102
NO
Change the microphone
NO
Resolder component
- 75 -
4. TROUBLE SHOOTING
LGE Internal Use Only