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SAMSUNG Proprietary-Contents may change without notice
Level 3 Repair
8-24
This Document can not be used without Samsung's authorization
8-3-10. Back Light (for Color Main LCD)
Backlight does not work
Yes
Is LCD Contrast set on high
level in the Menu?
(menu->settings->display-
>Brightness->level)
No
Set LCD Contrast on high level
(menu->settings->display->Brightness->level/
select 5Level (level :1~5)
Yes
#1 : Resolder R319
(with an soldering iron)
#2 : Repalce LCD Module
(to check if it has the problem)
No
Is R319 = 1.8V ?
(Wiring U305 pin4,
EN_LCD_BL)
Yes
END