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Flow Chart of Troubleshooting
10-16
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3) No Sound on main mic (calling)
Microphone does not work
YES
Is the assembled
status of
microphone O.K?
NO
Reassembled the microphone
Check the reference voltage
on mic path
V501
≒
2.0V ?
YES
Is microphone ok?
YES
END
NO
NO
Resolder or change
R501, R502, R512, R510, C500, L500, L502
C501, C505, C517, C503, C509, C515, C516
V500, V501
Check U502
Summary of Contents for I8510
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