Quoted from HowardR:Check this Motor 4A switch
For a switch to work 3 things are necessary:
1) When open, there should be a small space between the contact points (duh)
2) When closing, the long blade's contact point should push the short blade's contact point enough to move the short blade
3) The contact points should be clean, which they usually will be if #2 is happening
[quoted image]
HowardR nailed it again... the clue is that each player's 10K and 1K reels aren't going back to 0... clear from the schematic as shown... reading a schematic is going to be your best friend as a long term pinball owner.