Ursprünglicher Beitrag von: Joe Kukella ,
Odds are that it's just the inverter board that's killed the backlight on the display. Repair involves removing the display module, and removing the LCD panel from that module in order to get access to the inverter board so it's not for the faint of heart -- and of course you'll need a replacement inverter board as well. Not likely to be the LCD panel or the main logic board (MLB) though as you've got video out and pixels on the panel. The panel is likely the same but the cabling lengths and placement of connectors may be different as the internal layout of the MacBook Pro likely changed a good bit between the 2009 and 2012 models. Proceed with care. -- Joe, too.