Quoted from mountaingamer:
That’s what it’s sounding like. I would go into dedicated switches tests, then pull the connector at the io board. With the connector off you could take a piece of wire and short the pins for black / black-brown. If nothing changes then it’s the board.
Thank you for the suggestion. The IO Board is good, that was a quick way to check.
Quoted from pinballinreno:
Ohm Meter the connector at the EOS.
Manually actuate the switch.
Does it close?
Continue to the next connector.
Manually actuate the switch.
Does it close?
Do this until you reach the final connector at the PC board, test again.
Verify there are no loose pins or bad crimps from the EOS all the way to the PC board.
Do this first.
Test that the connector at the PC board actually contacts the pins on the PC board.
Momentarily Jumper the pins on the PC board for that switch.
It should activate.
Check for loose pin or cold joint on the PC board.
Check and meter all fuses, check for loose fuse holders.
Thank you both for the help, Pinside members are awesome...
I narrowed it down step by step as suggested, it was the connector to the IO Board, I pulled out the black / brown stripe wire and bent the crimp wider secured back into the connector and were good (Holy crap Batman, to the very end). I learned a lot today and feels good to resolve. It is understandable that all that wiring and connectors and complexity of these machines, something so small can go wrong. I just got into pinball over a year ago and love it and hope to do small restore projects when I retire ( 5 years).
Love this game so far, it is everything that I expected after reading through this whole thread....
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