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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
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9-11
9-6. Speaker Part(Melody)
U500 pin 7 = 2.9V?
Speaker does not work
Check the signal at
Pin 8, 9 of U500 >1.3V
Resolder the C503, C505
No
Yes
No
Resolder or replace U500
Yes
END
Yes
Is Speaker working?
Change the Speaker
No
Yes
Check the signal at
Pin 15, 17 of U500
Resolder or replace U500
Yes
No