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Flow Chart of Troubleshooting
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10-19
10-9. FM RADIO Part
Is there any signal at
L100 ?
FM Radio does not work
Turn on the Radio.
check the Voltage at
C104 (2.6V), C105
(2.6V) and C136 (2.6V)?
Check the Earphone and F100
Check U400
Check the EAR/SPEAKER Path
.
No
Yes
Yes
Yes
Yes
No
No
Is there any signal at
C341 and C343?
Resolder the F100
Check UCP300
No
Replace the UCP300
Yes
Содержание SGH-L770V
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