LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
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START
Mic bias ON
(2.5V)when
call?(C329
)
44pin connector
(CN301)is good?
Assemble
Check mic. Bias
line
Repair the 44pin
conn. (CN301)
Yes
No
No
Check microphone sound
hole
Check Signal C327,
C328 (2.5V)
Replace
microphone
(MIC100)
Yes
No