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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
10-
19
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10-1-7. Mp3 play Part
NO
Replace the Ear_jack socket
Are there any signal
at the pin #6 ~ 9 of U402?
NO
Check UCP 601
There are no MP3 sound from Earphone
YES
YES
NO
YES
END
Check Earjack socket status OK?
Are there any signal
at the C425, C426?
NO
YES
Check U402
Are there any signal
at the pin #10, 12 of U405?
Check U405 and shoot down
pin (_SHDN) is High
Check components on Ear path
line between U405 and Earjack