LG LG-E960 - Page 126

4. TROUBLE SHOOTING
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4.10.2 Receiver troubleshooting
Receiver control signals are generated by APQ8064(U21001) and Power is supplied byWCD9310(U5001).
Check the receiver Sound
(loop back mode)
Yes
No
START
No
Yes
Yes
Is receiver sound OK?
Change the WCD9310(U5001)
Is receiver sound OK?
END
END
END
Change the receiver.
Is receiver sound OK?
No
Change The main PCB
4. 10.2 Receiver troubleshooting
Receiver control signals are generated by APQ8064(U21001)
and Power is supplied byWCD9310(U5001).
Start
Check the receiver Sound(loop back mode)
Change the
WCD9310(U5001).
Is receiver sound
OK?
Change the
receiver. Is
receiver sound
OK?
Is receiver sound
OK?
Change the Main PCB
END
END
END
NO
NO
YES
YES
YES
NO
Receiver