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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
9-11
9-6. Speaker Part(Melody)
U500 pin 7 = 2.9V?
Speaker does not work
Check the Clock signal at
Pin 3 of U106 (26MHz)
Check the clock generation circuit
(related to U106 and U103)
No
Yes
No
Resolder or replace U500
Yes
U500 pin 15,17 ≒ 1.8V?
(When U500 operate)
Resolder U500
No
Yes
No
END
Is Speaker working?
Change the Speaker
Yes
Yes
HDC600 pin 2,3 ≒ 1.8V?
(When U500 operate)
Resolder HDC600
No
Yes
Summary of Contents for SGH-E250D
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