IBM 5100 Restoration in progress
santo.nucifora at gmail.com
Fri Mar 13 18:12:04 CDT 2015
Long time reader, first time poster.
I am in need of some assistance in trying to revive an IBM 5100. It is a
Basic 32k version that was in rough shape. You can see pics here:
I've been able to clean it up but when I fire it up I see a single "A" on
screen. I can't seem to get into any diagnostic modes. The single "A"
indicates an issue with the F2 Base I/O card. Some of the ICs do have some
rust on them but I'm wondering if it might be the "bridge connectors"
between the Base I/O and Controller (CPU) card. Are they directional or
can then be swapped or turned around? I may have not kept them in the
correct orientation but I don't see any mention in the Maintenance manual.
I, pretty much, need someone who has one to take a picture of the top of
their Base I/O and Controller cards.
Any help is much appreciated. If someone happens to know a common issue
that would make the "Bring up Program" stop at A, I'd love to hear about it.
Thanks in advance,
More information about the cctalk