[Coco] MPI Schematics in PDF?

[Joel Ewy]

I was fairly certain I'd seen schematics for various models of the 
Multi-Pak Interface floating around, but can't locate any at the 
moment.  I do have my original manual for my 26-3124, which includes a 
schematic, but it isn't very illuminating since it is all just one big 
ASIC.  So what I'm really looking for is the 26-3024 PAL-based model.  
(Were there other models of the MPI?)

Anybody know off hand where such a schematic is available?

JCE