User Guide

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SGH-E610 Flow Chart of Troubleshooting and Circuit Diagrams
2-9
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5. Microphone Part
Check the reference
voltage on mic path
R426=2.4V
Reassemblage microphone
NO
resolder or change
(C421,R415,R420,R421,R4
22,C427)
NO
Check U301
NO
YES
YES
Microphone does not work
END
YES
Check the
assembled status of
microphone.
Is microphone ok?