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Flow Chart of Troubleshooting
10-1-7. Mp3 Display Part
There is no MP3 sound from Earphone
Are there any signal
at the pin #4,6 of CN506?
NO
Are there any signal
at the pin #4,16 of U408?
NO
Are there any signal
at the pin #3,15 of U408?
NO
Are there any signal
at the C444, 445?
NO
The voltage of C435
is 3.3V?
YES
Check the U303
Check the CN506
Check the U201
END
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YES
Check
C444, 445
SAMSUNG Proprietary-Contents may change without notice
YES
Replace the Earphone
YES
Check C525, C526
and the pin #1 ,4 of ZD500
YES
Pin #2 of U408
NO
10-14
NO
Check
U201
is Low?
YES
YES
Pin 14 of U408
is 3.3V?
NO
YES
Pin 4 of U407
is High?
NO
Check U302
END
Check
U408
Check
U407
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