My Pat Hand has had a consistent issue when stepping down the bonus at the end of the ball. It still counts the correct amount of bonus so I've kinda been lazy about fixing it but now I'm digging into it again.
On single bonus the stepper is supposed to count down in steps of 5 (IE full 10k bonus would complete in 2 cycles of the control motor) but instead only counts down once per control motor cycle. This is the double bonus behavior but it correctly counts single bonus.
It does this inconsistently though - it will count 3 or 4 in a cycle, then 1 the next cycle, then get all 5, etc - I tried correlating these to contacts on the stepper motor but it's random
Double bonus works perfect.
I've tried cleaning the double bonus relay and checking all those contact/solder joints - as well as completely rebuilding the bonus stepper.
Any help here would be greatly appreciated