Key Back Light - Samsung SGH-E330N Service Manual

Flow Chart of Troubleshooting

7-10. Key Back Light

Key Backlight does not work
Y e s
No
Check the PMU related to " V DD _ K E Y "
U701 pin 5 = " H " ?
Y e s
No
Resolder or replace U701
U701 pin 2, 3 = " H " ?
Y e s
END
7- 17
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