RCA 50" Projector screen whirs when i plug it in but it does not come on. any advice?

This morning we went to pick up a TV at my brothers friends house but before we could pick it up it began to rain. Brought it home, dried it off, and doesnt turn on. i plugged it in once and saw a blue spark in the back corner. thinking that it finally kicked on i pushed the power button again but no dice. Took the back panel off and now im just looking at wonderin what i need to do next.