Special shout out to Mecha who fixed my Robotron! 3 LED's and zero in the error message display - music to the ears of any Williams machine owners. Issue was CPU board and molex connector related, surprisingly not the power supply, which is original.
Also special thanks to the wonderful...
First time poster, long time lurker. My story starts with an original Robotron purchased in 2008 which suffered death by moving cities in 2010. Like so many, I grew up in arcades in the 80's (specifically Red Barron arcade - Mayfair mall, Wauwatosa WI) Despite having 2 "repairman" in my new home...