I've got this broken 1st generation MacBook Pro 15". I'm trying to determine if it's got a bad LCD or just a bad inverter board. Believe me I know, that standard procedure is "start replacing parts, cheapest to expensive, until it's fixed". But since this computer is for me, I'm trying to fix it on the cheap.
So here's the behavior. When I turned it on, everything was fine. Then after a few minutes, the screen instantly went out as if it had gone to sleep. Of course it hasn't though. Yes I can still see the image on the screen if I hold it in the light. So it's either the backlight, or the inverter board. To me it definitely seems like it's an inverter board issue. But what do youuuuuuu think?