21 Apr
1999
21 Apr
'99
4:56 a.m.
This is the configuration that the machine came in,
except it was missing
the RAM and DELUA, I've added both where they had originally been according
to the diagram on the CPU cover, except I'm not sure if there were 1 or 4
RAM cards originally.
Pardon such basic questions, but this is the first time I've worked on a
UNIBUS system, I'm used to working on my Q-Bus systems.
Speaking from decades of experience, you *do not* put a Unibus machine
together in a big configuration, especially from mix-and-match used
parts, and get it to work. You go down to the most basic configuration
possible, and then add parts one at a time, testing as you go.
I'd recommend that anyone in a situation similar to yours strip the
machine down to a single system unit (i.e. pull the M9202 linking
the backplane segments together and put a terminator in slot 14),
with a single memory board and a single disk-like peripheral, then
work their way up. Of course, you need a terminator before you can
do any of this, and preferably a few spare grant continuity cards
(but we'll make sure these shortcomings are fixed shortly!)
--
Tim Shoppa Email: shoppa(a)trailing-edge.com
Trailing Edge Technology WWW: http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
Bethesda, MD, USA 20817 Fax: 301-767-5927