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4. TROUBLE SHOOTING
Checking Flow
SETTING : After initialize Agilent 8960, Test EGSM, DCS mode
START
Voltage VMIC of U101
= DC 2.5V?
YES
Check the signal
Level at each side
of MIC200.
Is it a few tens
mV AC?
YES
Check the soldering of
R207, R208, R212,
C210, C213
YES
Microphone will work
properly.
NO
Replace U101
NO
Replace microphone
NO
Resolder component
- 72 -
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