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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.
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
NO
1. Check mic Bias signal line
2. Change the U102
NO
Change the microphone
NO
Re-solder component
- 95 -
4. TROUBLE SHOOTING
2. TROUBLE SHOOTING
LGE Internal Use Only
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