Damn Mitsu!.. 42in wt-A42 is not working

I need some help. My 42inch Mitsu wt-a42 is not working, I have tried unplugging it and everything, I have heard so much about the convergances and what not.. I have an error Code 22 (short circuit protect). My power light kicks on as soon as i press power, than 1 second later it kicks off! there is nothing on the screen! what do i do? how can i fix this i dont have 300 bucks to give a guy that wont garantee his work anyway!