The LED might also be bad.ġ: Turn the pot fully clockwise, feed proper coins in and it should reject all of them.Ģ: Turn the pot counter clockwise, again feed proper coins throught. remove the board from the comparitor and wiggle the input pins looking at the solder joints. Also a common problem was a cold solder joint on the pins. Check to see that this is not stuck open or shut. Another thing that I seem to remember is that sometimes people would bend the pins where it plugs in. The 12v uses green color wires, the 24v uses grey wires. You might also want to grab your meter and check to see that power is making it all the way to the comparitor. The coils on the rake came in two versions, 12vdc and 24vdc. They had a bad habit of the wires becoming brittle and tearing away from the pins in the molex connector. Check the wire harness leading into the comparitor.
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