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SGH-X660 Flow Chart of Troubleshooting
2-
12
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2-1-5. Speaker Part
4
There is no sound from the Speaker
The terminal of Speaker is
O.K
No
Replace the Speaker
Yes
There is any signal @ the
C505,C506
Yes
No
Check LCD or Replace HDC501
The type of sound
from the Speaker is
Melody
There is any signal
@ C403, C404
There is any signal
@ R439, R440
Yes
No
The pin#4 of
U401 is "High"
Check the
U402, U403
Check the
U102
Yes
Yes
No
No
Check the UCP201
Check the U403
Yes
No
END
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