Microphone Trouble - LG KP270 Service Manual

4. TROUBLE SHOOTING

4.11 Microphone Trouble

4.11.1 Microphone for main MIC
Connect the phone to network
Equipment and setup call.
Audio path on the network equipment is
Is there analog signal Is there analog signal
at C414, C419? at C414, C419?
LGE Internal Use Only
start start
echo mode
YES
Mic is work well? Mic is work well?
YES
END END
- 90 -
NO
Resolder C414, C419
or change MIC401
NO
Change the main board Change the main board
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