I have been meaning for a while to make a post about this so it could possibly help others down the road, so here it is...
So I had a few Atronic Cashline "Sphinx" slots all non-working.
I made one working one for a friend, then had a few left over, all with issues. So I managed to build another out of them but all the monitors were bad or in need of a rebuild. I began looking at the monitor and found ziltch online for the monitor used in these slots but noticed it used a standard VGA connection, so I figured; "Why can't i just drop a 15" computer monitor in this thing?". So I kept an eye out and within a week I had found an old 15" PC monitor on the curb. I pulled the crt and chassis from the monitor cabinet (Make sure to discharge the tube first!!!
https://www.youtube.com/watch?v=XFmKqZji_XM ) and then pulled the crt and chassis from the Atronic monitor frame. I then mounted the CRT and chassis from the PC monitor in the Atronic monitor frame and dropped it back into the machine. I now had CRYSTAL clear video which cost nothing!
I wish all machines used a standard VGA connector.
I hope this can help someone out who has a monitor that is either dead or in serious need of a rebuild!