This sub-circuit is from my pinball machine. Each drop target is equipped with a slide switch. When the drop target is contacted by the pinball, it slides across the score contacts. (Momentary pushbutton) and then rests on the reset contacts (SPST switch) which is in series with all.the other drop targets in the array. Once all the drop targets have fallen, the circuit closes signalling to the CPU to reset the targets with the actuation of the solenoids.
