Issue with an early WPC game.
Before I took my Fun House apart for restoration it was working fine.
I put it back together, take the opportunity to attach a remote battery holder => it's not saving anymore and will always tell me "restored to factory settings".
Looks like I wired it ok, game works fine apart from this, batteries are new and giving 4,8V; continuity is ok all around..
Any idea? Only PITA remaining to call this a finished project!