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Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4. TROUBLE SHOOTING
4.11.3. Microphone (Voice call, Voice Recorder, Video Recorder)
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Microphone Signal Flow
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MIC is enable by MIC Bias
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CCO1, MIC1P, MIC1N signals to AB3100
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Check Points
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Microphone bias
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Audio signal level of the microphone
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Soldering of components
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Signal from the mic
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MIC on mainkey FPCB
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R103, R104 on mainkey FPCB
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C357, C358 on main Board
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AB3100
Содержание TU750
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