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Troubleshooting
6-1-5 Abnormal Key tone
Abnormal Keytone
CLK Waveform output
from U204 pin 17?
CHIP_CELECT U104 pin 7M
CLK waveform applied
to CON102-24 pin 24?
Is the buzzer
connection correct?
Check the buzzer and
replace if required
Yes
Yes
Yes
Yes
SAMSUNG Proprietary-Contents may change without notice
Check U204 pin 17.
No
Replace if required.
Check U204, pin 15.
No
Replace if required.
Check Q201,Q202,R227,R220,
No
and D206.Replace if required.
No
Connect the buzzer correcty
6-5
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