SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
9-19
9-9. FM RADIO Part
Is there any signal at
L116 ?
FM Radio does not work
check the Voltage at
C132 (3.8V,VBAT),
C133 (2.9V)?
Check the Earphone and U101 or
Resolder L116
Check U400
Check the EAR/SPEAKER Path
.
No
Yes
Yes
Yes
Yes
No
No
Is there any signal at
C155 and C156?
Resolder or Replace the U101 or
Resolder C155,C156
Check UCP300
No
Replace the UCP300
Yes
check the Voltage at
C136 (1.8V)?
Resolder or Replace the U101
Yes
No
Is there any signal at
L503 and L504?
Resolder or Replace the U503 or
Resolder L503, L504
Yes
No
