Column 3 (drop targets, Itchy & Scratchy vuk, spinner, Bart skateboard, upper right saucer) switches are not registering on my TSPP. I have continuity from the board plug to the last switch in the column. Unpluged the last couple of switches (drop targets) but the rest of the switches still don't register. Not sure what would be the best thing to try next? Any help is appreciated. Thanks!
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