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Flow Chart of Troubleshooting
10-18
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10-1-8. FM RADIO Part
Is there any signal at C129
and L604?
FM Radio does not work
Turn on the Radio.
check the Voltage at
C139(3.0V)
Check the Earphone and UFM100
Check U400
Check the EAR/SPEAKER Path.
No
Yes
Yes
Yes
Yes
No
No
Is there any signal at R504
and R506?
Resolder the UFM100
Check UCP300
No
Replace the UCP300
Yes