Hi, I'm working on a stars pinball machine, and am having a few random issues.
When I go to coin up, I drop one coin, but the machine continually keeps adding more credits endlessly until I turn it off. Switch is not sticking. I did notice that both coin switches do not have diodes....should they?
Second, when the machine boots up, a couple lights are on that I think should not be. One of the five stars is lit, and a double score light is lit. I believe both of these should be off on startup. Again, no stuck switches. Both should be activated by action on the playfield.
Any input would be greatly appreciated.