Why I can't get backlight on screen
Was wondering if someone could lend some expertise into this problem. I have a late 2008 MacBook Pro unibody 15.4 and the backlight is not working. I can use external monitor and I can see all images when shining a bright light at the screen, but no backlight. This is what was done so far;
1-replaced the logic board twice, same problem no backlight
2-replaced the LCD screen no backlight
3-I now have a third logic board and no backlight
I really don't think it could be three bad logic boards!
Question, could it be a bad LVDS cable?
Any help would be appreciated.