On KISS, the K target switch seem to be closed when the target has not closed the circuit. There is sufficient space between the contacts it appears. During idle the light is out of sync with the rest with erratic lighting going on/off. When I push the K target, it then syncs up with the ISS target lites.

During games an almost constant scoring occurs until I push the target...then it stops and the machine plays as normal. I've run the diagnostic test and it comes back with switch 20 being closed (K target), whether the target is pushed in or not.

Just when I think I understand a little something about how switches work, then this happens...,

I didn't replace the switch. The first pix is the switch that has the false closed signal and the second one is switch that has no problem. When I first tested the machine I had none of these anomalies and the switch test came up clean, but over that last week the problem has went from almost never to just about continuous false closed signal/scoring/activating.

switch 1 (resized).jpgswitch 2 (resized).jpg

During the lamp test, the light is in perfect sync.

During idle status, I have to press the K target for this switch in order to sync the light flash pattern with the other 3 (ISS) target lights around the playfield.

I did notice that the other 3 switches have red capacitors, while the faulty one has a green capacitor.

I'm learning as fast as I can, but do I understand the the target switches don't require a capacitor and only the Pop Bumper switches require a capacitor, so I can cut this capacitor off the target switch and not replace it?

Thanks to all on the board and forum for helping me with these newbie growing pains (lights, bad ground, faulty switch..just the first week) as a new owner of one of these delicate machines.