7 Nov
2014
7 Nov
'14
2:59 p.m.
On 07/11/2014 14:03, Ben Sinclair wrote:
My machine is a PDP-11/23 with a H9273 backplane. I
have, in this order
from the top: M8186, M8043, M8044DF, and an M8012 at the bottom.
It shouldn't really matter on such a small configuration, but the M8044
(MSV11-D) would normally be immediately below the processor, and the
M8043 (DLV11-J) below that. Other than that, I'd start by reseating
things as Noel suggested, check the PSU especially the +5V line, and
check the line-time clock signal (it may be wired to the AUX switch on
your BA11-N box).
--
Pete Turnbull