Samsung GT-i8910 Service Manual page 64

9-1-11 : Abnormal Receiver operation
No sound on Calling
RCV500
Signal exist?
Is RCV(Speaker)
OK?
END
RCV500
1
1
2
2
1981813
C506 C507
NO
YES
NO
YES
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Check U503 &
neighboring circuit.
If above is ok, replace
RCV500
Replace the RCV
RCVP
C506
RCVM
9-27
Flow Chart of Troubleshooting
BH905
BOTHHOLE