3. TROUBLE SHOOTING
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Only for training and service purposes
LGE Internal Use Only
3.10.2 Receiver troubleshooting
Receiver control signals are generated by MSM8226(U2100) and Power is supplied byWCD9302(U6100).
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Check the Receiver sound.
(Loop back test)
Change the Receiver.
Is receiver sound ok?
Change the WCD9302(U1600).
Is receiver sound ok?
Is receiver sound ok?
No
No
No
Yes
Yes
Yes
START
Change the Main PCB
LGE Internal Use Only
4.7.2Receiver troubleshooting
Receiver control signals are generated by MSM8226(U2100)
and Power is supplied byWCD9302(U6100).
4.7. 3 Main MIC troubleshooting
Receiver