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Flow Chart of Troubleshooting
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9-15
9-6. Speaker Part
U600 pin 3(VDD) > 3.7 V
Speaker does not work
Does not work Voice call ?
Resolder C605, C606, R602, and R604
or
Replace U601, U605
No
Yes
No
Resolder C601, C603
or
Replace U601 and U605
Yes
Does not work Ringtone
and Mp3 ?
Check U603 pin 11(DCVDD),
12(DBVDD), 28(AVDD)
or
Replace U601, U603, U605
No
Yes
END
Yes
Is Speaker working?
Resolder C700, C701 and
Replace ZD713, ZD714
or
Change Speaker(SPK700)
No
Yes