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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
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7-17
7-9. Key Back Light
Is "BACKLIGHT" set
"Always ON" in the Menu?
Set "BACKLIGHT" on "Always ON"
END
No
Yes
Yes
Key Back Light does not work
C806 = 3.3V ?
No
Replace U808(Key Backlight Switch)
Yes
U808 pin1 = 3.3V ?
No
Replace UCP100(MSM6250)
Yes