[Coco] Multi-Pak Interface

[Bill Gunshannon]

I am digging thru stuff as I get ready to set up a couple OS9
systems for some fun projects here and I came up with a question.

I have two Multi-Paks.  One of each model 26-3024 and 26-3124.
The seals on both are broken so I know they were opened up.
The question is: Is there any way to tell if they have been
upgraded or not?  One of them merely involved a single, plug-in
chip change (a PAL) and I don't remember what the other needed.
I think mine may have been both upgraded but I really can't
trust my memory any more.  So, any suggestions?

bill