Have sorted the score motor issue,upon start credits add everything resets and th Ax relay stops the score motor but then everything stops have tested the o relay that works but doesnot fire in the startup sequence and the ball count does not light.

Have checked them the stepper unit looks ok, where the ball sits there is no power there to push the ball out but if you manualy operate the relay it works, the only relays that do not work manually are the series relay and the score relay. I am not well up on the workings as this is my 1st pin.