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