Samsung YP-U5 Service Manual page 23

Troubleshooting
4-1-5 If the FM radio doesn't work
Faulty FM reception
Is the soldering on
the FM IC normal?
Is the 32.768 KHz Clock
entered in FM mode?
Check if the
resistance is normal at R10,
R101, R102, R1L5, R3, C1, C2,
R4 and R5.
Replace the board
(Detailed inspection is required.)
4-10
Yes
1
 Refer to wave pattern
Yes
image of Fig. 4-3.
Yes
No
Replace the IC, replenish the lead and
No
Replenish the lead on R31 and Xtal-3
or replace them and check it again.
No
Replenish the lead on the faulty
element and check it again.
then check it again.
Samsung Electronics