Speaker Part - Samsung SGH-E390 Service Manual

Flow Chart of Troubleshooting

9-6. Speaker Part

Speaker does not work
Check the supply voltage
Is the C826 = 3.8V ?
Is the D-Amp(U821)
Check R825 and R826
Check the connection
Is Speaker working?
Yes
of U821.
Yes
output working?
Yes
status of SPK
Yes
Yes
END
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No
Check the VBAT or replace C826
No
Resolder R825/R826 or replace U821
No
Re-solder the Speaker
No
Change the Speaker
9-10