3374 Views 1 Reply Latest reply: Jun 2, 2009 7:01 PM by louie
I will make an educated guess and say it may be a bad inverter and/or backlight tubes. The inverter is a small circuit board that converts the low voltage into the high voltage needed by the fluorescent tubes in the backlight assembly. IIRC, neither is easy or cheap to fix. The iFixit guide just shows replacing the entire screen assembly, which includes all of these parts. This problem is also hard to test without replacement, but you might consider connecting an external display to make sure this isn't a video drive problem.