Like mentioned before, the monitor is completely burned out, shorts the fustes and looks a mess.
I mean, look at that. Obviously the high score was not beaten for a long time. ;-)

So out it came, with the frame structure.
For info, it is a 13 inch Wells-Gardner monitor.
I suppose every project has some anecdotes and coincidence, and here is mine:
I used to do quite a lot of video editing in the past, and had quite a bunch of professional equipment for doing so. One of the things was a high-res RGB monitor with external synch input and over/underscan functionality. As far as I remembered, it was a 14 inch, lying around somewhere in the basement.
So I found it, pulled it out, and compared it to the original Wells-Gardner:

Veeery close, looking good!

I check the reference again on internet. The Panasonic 1415s is sold as a 14 inch reference monitor. Yet they look the same size to me.
So I unscrew the Panasonic, to find that the dimensions are identical to the mm, and that the frame screw mount holes are in exactly the same spot. This is amazing, as a while back I was thinking a selling this screen, long before ever thinking of getting an arcade machine. Very happy find, and very happy coincidence.

The thing now will be to replace one with the other without frying myself (asked the question in this post):
https://www.dragonslairfans.com/smfor/index.php?topic=2998.msg39958#msg39958Buy the way, the dead Wells Gardner is now out of the frame and ready to go to the recycling center in the coming days. While carrying the thing, so being very close to it with body contact, I got a very bad headache. Does that thing emit any radiation when not discharged or was it just provoked by all the chemical cleaners I was using?