I did a lot of photos... but I can't find them
So I will open the devices (some of them ARE open already

) and yes, no problem, I'm experienced in doing this
Ha, found something I posted years ago: Centurion, Mystery
https://www.schachcomputer.info/foru...7&postcount=26
EDIT:
Picture taken 5 minutes ago. Mephisto Schachakademie is out of order (design flaw) and ready for "Recyclinghof"