No signal / rolling screen on Mitsubishi WS-48513 TV

[Sabrina]

Model: Mitsubishi 48" rear projection TV WS-48513

My family just upgraded their TV, and gave me the old one for XMas.
On XMas Eve, we were watching movies on this set. 4 days later when I came back to come pick it up, it was mysteriously not receiving a signal from their cable box. I assumed them to have hit some odd setting somewhere, and packed it up to bring home.

Once I got home, I deleted all of their programming configuration and performed the reset on the front of the set.

When the DVD was hooked with an RCA, there was no video or audio signal (verified to use the TV set's speakers).
The same situation occured with a laptop connected with video through VGA, and audio through the RCA inputs associated with VGA. Nothing.
The menus display just fine, though.

When my digital antennae is hooked up directly to the DTV antennae input, I hear no audio (did not verify that input was set to TV sound). It will find and memorize channels, but the picture (including the TV's menu) will roll rapidly.
I attempted to hook up my antennae to my digital converter box, and then setup my digital converter box on the TV like a cable box. Here, like the DVD and PC, there was no video or audio signal.

Memory card slot #1 also provided the rolling screen and menu that the digital antennae generated.

What seems to have gone out?

[jts1957]

Have you read the owner's manual yet? http://www.mitsubishi-tv.com/pdf/ownersguides/WS-48513.pdf
_________________
You're over there, I'm over here.

[Nugasaki]

We have both read the manual inside out and checked every menu's settings. I think we have a mechanical failure because not a single input worked normally.

[minnie]

PIP jump

http://www.youtube.com/watch?v=SIv78J3IaMk