I'm moving this topic to a new thread, so we don't hijack the other thread.
Quoted from Brewchap:A strange problem with the system 4 board. After it boots, it shows that it is on ball 4 and the credit number is rolling from 01 to 23 over and over non stop.
Also on the system 6 board, I can start a game, but the game never ends. It keep going and going, ball, after ball. Like that damn rabbit you see on TV.
Quoted from slochar:System 4 is stuck in audit mode it's showing you the results of the audits.
System 6 probably needs its ram reset, the balls to play is supposed to be capped at 1-9, but if it's zero, you will get endless balls. There's no bounds checking when it reads the # of balls to play, just when you set it. Going in to the setting for balls in play and cycling it through a full cycle should fix that.
Williams really needed a way to re-load cmos defaults other than a battery pull, or putting a different set of roms in there (which "should" reset it, but doesn't always)
Quoted from slochar:The advance button is not getting its signal to where it needs to be or its stuck.... double check it's on the correct header, IIRC it's one of the upper 2 4 pin ones on the mpu.
Yes it was in the correct location. Removing the connector and then booting the pin, the credit numbers show 1 and the ball number shows 4. But no more rolling, unless I add the connector back, then it starts rolling numbers non stop, Even if you pull the connector again, it's still rolling.