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SGH-P408 Flow Chart of Troubleshooting
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3-
11
6. Speaker Part
Is the terminal of Speaker
O.K.?
There is no sound from Speaker
Are there any signals
at the C220,C227?
Check LCD or Replace CN200
Check U401
Is there any
signals
at the pin#5 and
END
No
Yes
Yes
Yes
No
No
The type of sound
from the Speaker is
Melody
Replace the Speaker
Yes
No
The pin#4
of U400 is
No
No
Yes
Yes
Yes
Check U400
Is there any signals
at the pin#2 and
pin#10 of U400?
The pin#4
of U400 is
No
Check U700
