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Logitech Mouse Hack to Trackball
OSCAR:
Minwah is correct, the Logitech mice I've also had trouble interfacing with arcade optics are the ones with a 3-pin phototransistor. I haven't tried hacking a Logitech for years since they never worked. Possibly they have changed their board since I last cracked one open and now use the 4-pin style and those work with arcade optic boards.