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SGH-Z130 Flow Chart of Troubleshooting and Circuit Diagrams
2-1-5. Microphone Part
Micro-phone does not work
Is the assembled status of
Microphone O.K?
Check the DC bias voltage on
The voltage of R242 is
Is microphone OK?
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YES
Mic path.
YES
2.6V ± 10%?
YES
YES
END
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NO
NO
Check the path around MIC
NO
2- 10
Reassemble the
microphone
Bias circuit
Check U100
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