LG VX9100 Service Manual page 100

VX9100
START
Voltage at R306 is
about 3.4~4.2V
Check audio signal at R301, R302
Check audio signal at C314, C315
Check the state of contact of speaker
Speaker will work properly
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Only for training and service purposes
NO
YES
NO
YES
NO
YES
NO
YES
Checking Flow
Checking Flow
Check the Battery Voltage
Check the soldering at
R301, R302
YES
Check the soldering at
C314, C315
YES
Replace speaker
- 99 -
Replace MSM or Main Board
NO
Resolder R301, R302
Replace U301
NO
Resolder C314, C315
LGE Internal Use Only