Hm, that's not so easy. Maybe from ebay or something else ![]()
But I don't know if the error can realy fixed with the service keyboard.
Maybe the Game-module (Spielmodul) has a nearly empty battery in the timekeeper-IC.
In that case, either the timekeeper has to be exchange or it has to be mill-cut to replace the battery.
After that, the timekeeper needs an image sometimes. Otherwise the program will not start.