MacBook Pro will only boot with top cover opened
I have a MacBook Pro 1.83GHz that will power on but the screen remains black. I repair computers so I disassemble it up to the point where I could remove the top cover. What I found is that if I ground the cover to the back of the body holding it almost verticle, and press the power button, it will boot fine. When I close the cover after booting it continues to work. If I try to boot with the cover down I only get the black screen. Im kind of stuck at this point, it seems as if there is a short somewhere but I will have to continue further. Anyone else having this issue? All suggestions will be appreciated.
i've had the same issue with a fsc notebook - i used paper to find the area where the short is - cover everything possible with paper (or a foil) and try to start, reduce the paper areas and look in what area the short comes back - then look at the parts in that area (nothing special, but worked for me)