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Flow Chart of Troubleshooting
9-10
9-6. Speaker Part
Speaker does not work
Yes
Check the supply voltage
of U601.
Is the U601 = 3.8V ?
END
Yes
Yes
No
Change the S MIC module
Is Speaker working?
Resolder R630/R631 or replace U601
No
Is the AUDIO-Amp(U601)
output working?
Check R630 and R631
Yes
No
Check the VBAT or replace U601