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VX9700
Setting: After initialize 5515C,and then test handset.
START
Check the voltage of R543
Whether its range is 1.2~1.5V
Check the signal level at
Each side of MIC
Check the soldering at C202 , C203
Check the MIC FPCB soldering
MIC will work properly
LG Electronics Inc.
YES
NO
YES
NO
YES
NO
YES
NO
YES
Checking Flow
Checking Flow
Check the soldering at
R543
YES
Resolder U508
Resolder C202 , C203
Resolder MIC
Replace MSM or Main B/D
NO
Resolder R543
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