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CHECKING FLOW
SETTING : After initialize Agilent 8960, Test EGSM900, DCS mode ( or GSM850, PCS mode )
START
Check microphone sound hole
Make a phone call,
then check L205(TP02) mic bias
comes from U102?
YES
Check the signal
Level at each side
of MIC201.
Is it a few tens
mV AC?
YES
Check the soldering of
C147, C148
(TP06,05)
YES
Microphone will work
properly.
LGE Internal Use Only
NO
1. Check mic Bias signal line
2. Change the U102
NO
Change the microphone
NO
Re-solder component
- 93 -
4. TROUBLE SHOOTING
2. TROUBLE SHOOTING
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