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VX11000
START
Voltage at C3020, C3021 is
about 3.4~4.2V
Check the audio signal at
C3012, C3014~C3016?
Check the audio signal at
C6016~C6019?
Check the contact state
of the FPCB connector
Check the audio signal at
SPK contact pad
Speaker will work properly
LG Electronics Inc.
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
Checking Flow
Checking Flow
Check the Battery Voltage
Check the soldering at
C3012, C3014~C3016?
YES
Replace U3001
Replace the LCD FPCB
Check the soldering at
SPK+, SPK- contact pad
YES
Replace MSM or Main Board
NO
Re-solder C3012,C3014,C3015,C3016
Replace speaker&
proximity cal after SET assembly
NO
Resolder the speaker&
proximity cal after SET assembly
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Table of Contents
Troubleshooting
