Hmm, I personally can't recommend to do this kind of hacking unless you know what you're doing or have the ability to google up what you don't know.
But anyhoo. Look for the dimple on the PLCC package, that is pin 1, you count anti-clockwise from that dimple.
I'll merge this thread with the other one concerning the CDTV and connecting an AmigaBus peripheral to one.
Good luck with your project!
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