I've finally got power for my PDP-11/44 so I'm getting ready to start
testing it out, and as a result have made a careful diagram of the CPU
prior to pulling the cards so I can test the Power Supply. It took some
doing, but I found Tony's message from June 10th of last year telling me
how to test it :^)
In doing up the diagram I've discovered a few problems. I'd appreciate it
if someone that knows what they're looking at could take a look a the
diagram though.
The diagram is here:
http://zane.brouhaha.com/healyzh/images/pdp1144cards.GIF
I realize I'm missing M9302 UNIBUS Terminator. Slot 15 is actually the gap
between the two backplanes in the cabinet, and Slots 25-29 don't exist. I
suspect I need "Grant Continuity Cards" in Slots 10-12 since I don't have
memory in them.
Is there anything else that I'm missing, or does anyone see any problems
with this configuration?
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.
I did get one pleasant surprise, I'd thought I was missing the FP11.
Zane
| Zane H. Healy | UNIX Systems Adminstrator |
| healyzh_at_aracnet.com (primary) | Linux Enthusiast |
| healyzh_at_holonet.net (alternate) | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| and Zane's Computer Museum. |
|
http://www.dragonfire.net/~healyzh/ |
Received on Tue Apr 20 1999 - 23:46:06 BST
