I had acquired an IBM 5120 a few months ago but I didn?t have time to really check it
out.
It?s a fairly pristine example (32KB) with dual 8? floppies. It also came with a few
manuals
including the Maintenance Information Manual as well as the Computing System Logic
Manual (still shrink wrapped). It also has a serial I/O diskette and a diagnostic
diskette.
It also came with a printer but I have not yet unboxed that yet.
When I originally unboxed the 5120 I was a bit disappointed in that the shipper didn?t
pack
it as well as I would have liked (styrofoam peanuts) but there was other packing material
so it wasn?t a complete disaster.
Since it was a working unit prior to shipment, after an initial inspection, I powered it
up only
to have nothing happen. :-( I proceeded to take the covers off and noticed that the
fuse
for the display had blown. It was likely vibration related since I didn?t see nor smell
any
burnt components. Replacing the fuse, I saw that the cathode filament was lit but still
nothing
on the display. :-(
After removing the logic chassis and removing all of the foam ?gunk?, I noticed that a
couple
of the boards as well as the connectors for two of the boards were loose. After
reseating
everything, success!
I haven?t yet done a complete checkout yet, but I did enter a small BASIC program and it
ran successfully. Now I have to find some IBM formatted 2D diskettes for this so that I
can
save what ever programs I enter. ;-)
TTFN - Guy