LG LG-E960 - Page 125

4. TROUBLE SHOOTING
- 125 -
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Only for training and service purposes
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WCD9310(U5001)
4.10.1 Speaker troubleshooting
Speaker control signals are generated by APQ8064(U21001)
and Power is supplied by WCD9310(U5001).
Start
Check the speaker.
And reconnect ANT module.
Change the Low
FPCB. Is speaker
Sound OK?
Change the ANT
module. Is
speaker Sound
OK?
Is speaker Sound
OK?
Change the Main PCB
END
END
END
NO
NO
YES
YES
YES
Change the
WCD9310(U5001).
Is speaker Sound
OK?
END
NO
NO
YES
Lower FPCB
SPK PAD
4.10.1 Speaker troubleshooting
Speaker control signals are generated by APQ8064(U21001)
and Power is supplied by WCD9310(U5001).
Start
Check the speaker.
And reconnect ANT module.
Change the Low
FPCB. Is speaker
Sound OK?
Change the ANT
module. Is
speaker Sound
OK?
Is speaker Sound
OK?
Change the Main PCB
END
END
END
NO
NO
YES
YES
YES
Change the
WCD9310(U5001).
Is speaker Sound
OK?
END
NO
NO
YES
Main ANT