LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
- 123 -
4.21 Main microphone
MIC301 -> C231 -> MIC1P(MSM6280)
Start
MIC_BIAS(C321)
is 1.8V
Change main board
NO
Make a call
Change the MIC
NO
YES
Change the Main board
Make sound to MIC
Work well?
END
YES
NO
YES
Sine wave appears at
C231?
Z3X-BOX.COM
Содержание CU720 Black
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Страница 204: ...Note Z 3 X B O X C O M ...