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Could also be the photointerruptor. I could test it by shining a light in there with my multimeter hooked up. See if it's detecting light. That would at least tell me if it's working, but won't tell me if there's noise on the line. I don't have an oscilloscope. They're just too expensive, and I have absolutely no idea how to use one.
Last edited by olePigeon; 10-25-2024 at 11:55 AM.
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