LG LG-500 User Manual

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5.2.2 MIC Trouble
MIC is not working
Connect the Phone to
Network Analyzer
Check the signal level at the
point U803, PIN9(R601).
The level is 2.0V
Check the signal level at the
U601, PIN5 and U602, PIN5
after putting audio signal in MIC.
A few hundreds
of mV of signal levels
are measured.
Check the connectivity of
R601 and 602.
Check the MIC.
END
Replace the U601 or
U602 which does not
have proper level.
YES
YES
NO
NO

LG LG-500 Specifications

General

Brand	LG
Model	LG-500
Category	Cell Phone
Language	English