Only For Training And Service Purposes - LG MG295 Service Manual

4. TROUBLE SHOOTING
Checking Flow
SETTING : After initialize Agilent 8960, Test GBS850, DCS mode
START
Check the
Voltage VMIC 2.5V
YES
Check the signal
Level at each side
of MIC200.
Is it a few tens
mV AC?
YES
Check the soldering of
R222,R223,C212
,C217
YES
Microphone will work
properly.
LGE Internal Use Only
NO
Change the U103
NO
Change the microphone
NO
Resolder component
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Only for training and service purposes