S2000 Buttons Not Recognizing Every Press and Lights Not Working

[Sunrise Side]

Are all your buttons connected to the same place on all the switches? COM and NO ?

[Stayouttadabunker]

I'm away from the machine at the moment, but I can do that. Are you saying for me to just remove the bulbs or disconnect the wires connecting to the bulb? Either way, I don't get how this would result in a difference in button behavior. Could you please explain?

Your wiring is all screwed up.
They must ALL be connected in the same way in order for the deck to work, or you'll be crossing logic signals.

Take all the LED bulbs out.

You have them in wrong. (See your 2nd sentence in Reply #6)

Double -check the wiring harness to each and EVERY switch under the deck.

Most likely, you have a switch wire or more confused with a lamp wire and on the wrong contact tabs.

[TheEyeInTheSky]

Are all your buttons connected to the same place on all the switches? COM and NO ?

See photos and below reply to Stayouttadabunker.

Your wiring is all screwed up.
They must ALL be connected in the same way in order for the deck to work, or you'll be crossing logic signals.

Take all the LED bulbs out.

You have them in wrong. (See your 2nd sentence in Reply #6)

Double -check the wiring harness to each and EVERY switch under the deck.

Most likely, you have a switch wire or more confused with a lamp wire and on the wrong contact tabs.

Okay, so I reverted all the microswitches, bulbs, and buttons back to the original microswitches, incandescent bulbs, and buttons that came with the machine... then disconnected the wires that connect to the bulbs. All the colored wires are according to the schematic you provided. See photos.

I also made sure that I cleaned with soap and water all the button parts to get rid of all gunk.

The buttons are behaving MUCH better, but there's still obvious moments where the presses don't register. The Service button is actually usable again, along with the Cash Out button and Bet One Credit button. Spin Reels and Bet Max are okay too. Many back to back presses aren't being recognized though, so it's not perfect.

I have not reconnected the bulb wires. All buttons have their bulb wires disconnected.

Included in my photos are 2 photos of the microswitch used. The condition on this microswitch is the same on all buttons. Is it possible that these microswitches looking black could be a source of the problem?

[Stayouttadabunker]

Your bulbs...are they 12volts, or 6.3volt lamps?

[rayydio]

Because an LED is a solid state device and not a incandesent bulb.  With older electronics, LED's can cause goofy issues like you are experiencing.

[brockmd]

Take an eraser and see if that will clean the contacts up. Fine steel wool can also work.