Back Light (For Lcd) - Samsung SGH-D820 Service Manual

7-10. Back Light (for LCD)

Backlight does not work
Is LCD Contrast set on
U820 pin 6, 7, 14 = 3.8V ?
U820 PIN 9~11 = H ?
Replace the LCD Module
Yes
high
Yes
Yes
Yes
Yes
END
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No
Set LCD Contrast on high level
No
Resolder U820
No
Resolder U820
7-19
Flow Chart of Troubleshooting