Samsung SGH E590 Service Manual - Page 56

Key Back Light

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9-10. Key Back Light Main Key LED does not work Yes U701 pin6 = "H"? Yes U701 pin3 = 3.3V ? Flow Chart of Troubleshooting No Check the U701 related to "KEY_LED_ON" Change U701 END 9-19 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization

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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
9-19
9-10. Key Back Light
Main Key LED does not work
Yes
No
Check the U701 related to
"KEY_LED_ON"
U701 pin6 = "H"?
Yes
Change U701
U701 pin3 = 3.3V ?
END