
SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
10-
14
10-1-7. Mp3 Display Part
NO
Replace the Earphone
Are there any signal
at the pin #4,16 of U408?
NO
Check C525, C526
and the pin #1 ,4 of ZD500
There is no MP3 sound from Earphone
YES
YES
Are there any signal
at the C444, 445?
NO
The voltage of C435
is 3.3V?
NO
YES
YES
END
Check the U303
Are there any signal
at the pin #4,6 of CN506?
Are there any signal
at the pin #3,15 of U408?
NO
YES
Pin #2 of U408
is Low?
NO
YES
Pin 14 of U408
is 3.3V?
YES
Pin 4 of U407
is High?
NO
YES
Check
U201
Check
U408
Check
U407
END
NO
Check U302
Check
C444, 445
Check the CN506
Check the U201