It's not needed because the coin is so large and breaks the optical beams quite easily. Some casinos used really large coins instead of quarters and the "wall" inside the coin decoder insert guide isn't even there. There would be a plastic "wall" in the guide that directs the coins to cross over the optical holes. Make sure the optic guide with the holes allows the quarter to cover at least two of the three holes. I'm assuming that you're using quarters for coins? There's a special black plastic insert guide where the coins fall thru that have corresponding holes on each side of it.īecause it is sandwiched between two circuit boards, there are optical eyes that need to "see" thru the holes.make sure they aren't blocked with dust or debris. Take apart the coin-in optics below the coin comparitor. You can do some reading in the S+ area of NLG to find out how to remove certain chips on the optic circuit boards for better coin acceptance. If it still doesn't let coins get thru the coin-in optics sandwich, you can just remove the rake altogether if you want. Wiggling the connector housing sometimes allows the female contacts inside get a fresh connection. The "rake" is behind the coin comparitor and directs coin flow. I attached a photo below this Reply with a yellow arrow showing you which one I mean. That sometimes gets oxidized and causes the rake to get stuck in a closed position. Try wiggling the small two grey wired Molex connector on the coin comparitor.
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