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Flow Chart of Troubleshooting
9-4. FM Radio Part
FM Radio does not work
Turn on the Radio
Yes
Check the voltage at
C136(1.8V)
Yes
Is there any signal (I2C) at
R105, R106 ?
Yes
Is there any signal at
C119 , C122 ?
Yes
Check the EAR/SPK Path
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No
No
No
9-26
Check UCP300-2(QSC6240)
Check UCP300-1(QSC6240)
Check U102(Radio TRx)
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