I have converted to the 2x frame for the screen.

I recently disconnected my radio and DVD player and my nephew was pressing buttons on the remote and now I get nothing on my screen. Not even the blue screen that pops up with no video input.
Vol and menu doesn't show up at all.
The unit does get power though...did something come loose or something?
I thought it was the remote so I used the buttons on the unit and nothing

The black screen bothers me now