After spill no internal video but external video works.
A bottle of pop had a leakage in my bag where my MacBook Pro also was. So I dried it but it started behaving strange. Suddenly the video went black and it would not charge. I took it to a Apple service center and they said the logic board was bad. (no guarantee, a fortune of money).
I replaced the Magsafe card since there was no light when I connected a charger. The MBP starts up now and works fine - on external screen only. The internal screen is black.
I then purchased a new LVDS (video) cable and changed it. Cleaned the connector on the logic board. No luck. I even tried with a known working display. Internal video is just black.
So I guess there is no use to buy a new LCD? Does anyone know if the logic board can be damaged in a way that external video works but internal does not?