what kind of monitor is in there right now? A Hantarex Polo 25?
I think so. Here are some pictures I just took. (will shrink the pictures tomorrow, don't have the software at hand now)

just tought that that was the power cable of the monitor... NOT!

Have to look again, how does the power cable of the monitor look like?
Powered the cab on, monitor still flashed so wrong cable unplugged, but now I know nothing else is broken. The cab still moves and the game starts because I heared the music.

Checked the fuse

seems ok and because of above I think it's still good.
Here are more pictures of the monitor(frame)
The farthest screws of the frame are difficult to get out from the back (see red arrow in pictures) because they are in a very narrow place.


Seems the frame is from the original monitor setup and not from this polo.
So if the frame doesn't have to be removed but only the polo monitor then it is the question will the swap monitor fit the frame. And how difficult it is to swap the monitor I have no idea


The rgb cable plug