Sharp lc-46Sb57un tv blinking green leds

[pac.attack76]

So I got this set free from a guy that said he accidentally pulled the coax socket out of the back. He had removed the video board and then bought a new TV. I figured since only that part was pulled out and the other inputs were intact, I could use those. I reassembled the tv and turned it on. Only the green power led comes on. It will sit for a minute or so, clicking a relay every few seconds like it's trying to boot up. After about 3 or 4 tries, it's starts blincking 2, 1, 1 then repeats. On 2, it's both power and opc indicators, then 1,1 being only the power blinking. Any idea?