Macbook Pro won't boot

[davemchine]

I checked the fans and they do spin and continue to spin.

I tried the HDMI plug and voila the computer screen came right on (but not the tv screen). The Apple showed up and the progress bar went half way across the screen before it went black again. Repeated tries shows only a black screen. :-(

I tried the flashlight but saw nothing.

Thanks for all the help. Does this indicate what the problem might be?