Lg mw60sz12 rear projection tv no signal on input, tv will not pick up signal on inputs when something is plugged into any of the inputs and that input is selected tv flashes with no signal screen

Hi penny, we two have the same problem. after completly shutting down the tv and unplugging, we removed the RCA/s-video pannel from the back with the three skrews leaving all wires in tact. without touching the mother board i gently pressed in the cords beteween the back pannel and the motherboard. i also had an air compressor and blew out all the dust. PLEASE I HIGHLY RECCOMEND YOU HAVE EXPERIENCED PERSONS DO THIS! touching motherboard components will not only short your tv but it will shock you at a high voltage. we then skrewed in the pannel again and after 1 mintue component along with S-Video worked. i hope this helps you