PDP11/23 More dumb questions

From: Olminkhof <jolminkh_at_nsw.bigpond.net.au>
Date: Thu Mar 30 06:30:09 2000

Thanks to all for the advice so far.
I now have the terminal connection working again at least.

>
>Try connecting directly to the 10-pin connector on the left side of the
>MXV11, start it up, and hit the HALT button. You should get an address and
>an ODT prompt. You should get another prompt every time you press RUN, if
>HALT is still pressed in. Assuming the panel is connected to the backplane
>correctly.
>


I do this and get:

147470
_at_

Further iterations all result in:

173000
_at_

If I hit restart at any time after that there is a some disk activity and
eventually and "&" prompt appears. The keyboard doesn't respond and nothing
seems to happen in a reasonable time after that.
I consulted the original owner who reports that it definitely went through a
self test routine on the screen and did this before the linked PDP8 was
started, so there's a hardware problem somewhere.

Anyway I'm streets ahead with the info from Aaron Finneys scans which I will
now study. I plan to reseat all the roms and cards and check all the jumper
settings.

Thanks all,
Hans
Received on Thu Mar 30 2000 - 06:30:09 BST