LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
- 101 -
4.18 Main microphone
U303(MIC)
→
R834,C837
→
MIC1P(MSM6260)
Start
MIC_BIAS
is 1.8V
Change main board
NO
Make a call
Change the MIC
NO
NO
YES
YES
END
Make sound to MIC
Work well?
Change the
main board
YES
Sine wave appears at
C837 ?