Looking for manual/schematics for Microangelo MA520 S-100 card

[Dan Roganti]

Anyone have a manual/schematics for Microangelo MA520 S-100 card ?
All the sites that I bookmarked come up empty.
I'm trying to fix the one I have here.
It's also missing a chip at U5
I don't have a photo of the card either to determine the part#, just the 
early revision model.

thanks !
=Dan

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