Question for you all:
I have been dumping ROMs with my Arduino from many systems, but when I try to dump the Osborne ROM I get nothing, all null. The AM2732 series has a very standard pin layout, I can't imagine I've got it wrong. The exact chip is AM2732-1DC, and I am using the diagram that many new datasheets for 2732 show. None are unique. I was able to successfully dump the character ROM, MM2716Q-1 (although there were several points of corruption, compared to the ROM here http://www.retroarchive.org/maslin/roms/
Do you think a failed ROM could result in the problems I've been seeing in my initial post?