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SGH-X140 Flow Chart of Troubleshooting
2-
8
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2-1-5. Speaker Part
There is no sound from the Speaker
Is the terminal of Speaker
O.K ?
No
Replace the Speaker
Yes
Are there any signals at
the R518,R519
No
Yes
Check U501
The type of sound
from the Speaker is
Melody
Is there any signals
at the pin#5 and
pin#7 of U501 ?
Is there any signals
at the pin#2 and
pin#10 of U501 ?
Yes
No
The pin#4 of
U501 is "Low"
The pin#4 of
U501 is "High"
Check the
U502
Check the
U502
Yes
Yes
No
No
Check the U201
Check the U501
Yes
Yes
No
No
END
