Vizio SV422XVT problem only coax input works

[doomstriker]

I'm having a problem with my 42" Vizio TV. I hooked my tablet to the HDMI inputs eveything was fine until the screen went black and now the only input that works on the TV is coax. No hdmi, no component, no rca. I tried hooking up a laptop to the Hdmi port and the computer
detected the TV model but no image.

Any ideas, what could be the problem?

Thanks,
Wil