Samsung YP-P2 Service Manual page 21

Troubleshooting
4-1-4 Cannot Receive FM Radio
Symptom
No FM radio reception
1 Check if the C107 FM_VDD of IC100 is 1.0V.
Major Checklist
2 Check if RTC CLOCK outputs a busy FM_CLOCK 32.768 KHz.
Activate the FM radio.
Are the earphones plugged in?
Yes
1
Check BATTERY power.
C107: 1.0V
Yes
2
Is 32.768 KHz CLOCK being
inputted normally?
Yes
Completion
4-8
No
No
 Refer to wave pattern
image of Table 4-4.
No
 Refer to wave pattern
image of Table 4-4.
(2 Wave pattern Peak-Peak 1.8V
Reactivate after connecting the
earphones.
Is RTC CLOCK functioning
normally?
Yes
Check the DIVIDE resistance.
(R525 220KΩ, R526 1MΩ)
Check)
No
Replace the board
(needs thorough examination).
Samsung Electronics