I could never find anything about the logic board itself, because all the crazy Japanese dudes back in the day were gutting and tossing the stock CC loom and replacing it (after some irreversible chassis mods) with a 5x00 loom interfaced to the CC analog board (which is why I was able to find that connector pin out above).

Google and I spent hours looking for the CC-575 logic board pin out to no satisfactory end. If you find one please send me the link!