I believe I can help with this. Although I do not have a spare device, I do have the
binary as Intel hex as I had the same device fail on my SDK-85 and went through the
exercise replacing it. I'll report back off list once I dig up the file.
Chris
On August 13, 2016 3:07:06 AM CDT, Alexis Kotlowy <thrashbarg at kaput.homeunix.org>
wrote:
Hi List,
I've started looking at my SDK-85 after having it on the shelf for
years. I know the 8355 mask ROM on it isn't working but I haven't been
able to find a suitable replacement. I wired up a temporary solution
with a 2716 EPROM only to find the ROM image and source code aren't
available outside of dead-tree format. I'm not about ready to type out
48 pages of source code. Does anyone have a digital copy of the source,
or the assembled binary or, even better, a replacement ROM?
(I'm in Adelaide, Australia.)
Cheers,
Alexis.
--
Chris Elmquist