I’m having an issue with it saving high scores and showing more than 1 credit. I check the voltage on Z1 pin 1 and I am getting the same voltage as I am getting on the 5101 ram. I am also getting the same voltage on the pin directly across from pin 1. Is that pin 2 or is that pin 8? I am not getting voltage at any other pin on z1. What do you conclude from that?
Also, I have had the correct number of credits appear during the middle of a game. One time it happened after the ball was kicked into the shooter lane. I don’t remember if that was to start ball 2 or ball 3, but it definitely wasn’t on ball 1. Later on while I still had the machine on it went back to only keeping 1 credit. Not sure if that helps at all?