LG VX11000 - Page 113

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