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LG Electronics Inc.
VX11000
Checking Flow: Headset detect problem
Checking Flow: Headset detect problem
Check the voltage C3025
whether its range is high ?
NO
1
Check the soldering of CON3000
NO
YES
Replace CON3000
YES
Resolder CON3000 with heat gun
4
NO
Replace MSM or B/D
Checking Flow: Headset RX path problem
Checking Flow: Headset RX path problem
Voltage at C3020, C3021 is
Check the audio signal at
C3012, C3014~C3016
YES
NO
Replace MSM or Main Board
Check the soldering at
C3012, C3014~C3016
Re-solder C3012,C3014,C3015,C3016
NO
Replace U3001
NO
YES
about 3.4~4.2V
NO
Check the Battery Voltage
Check the audio signal at
C3022, C3024
YES
NO
Replace CON3000
Check the soldering of CON3000
YES
2
YES
4
Checking Flow: Headset TX path problem
Checking Flow: Headset TX path problem
Check the voltage C3026
whether its range is high ?
NO
3
Check the soldering of CON3000
NO
YES
Replace CON3000
YES
Resolder CON3000 with heat gun
4
NO
Replace MSM or B/D
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