31 Jan
2019
31 Jan
'19
11:47 a.m.
I have completed my transcription of what I felt would be the most
salient entries and information in those entries of the PDP-11/45
DEC-O-Logs.
Curiously, there were no entries at all for the KB11-D.
The transcripts are available on my Google Drive at
https://drive.google.com/open?id=0B2v4WRwISEQRWWFFdVpCZWFTZEU
under pdf/dec/fieldService/dec-o-log
Of course, they won't be 100% accurate, but I did take special care to
note areas where I had trouble making stuff out, and over signal names
and FCO cuts/adds where available.
Note/offer: If someone has a good way to scan fiche, I could send (one
at a time) my JAN86 and JUL86 fiche sets (9 fiche) off to that someone
to scan/print.
On 1/27/2019 6:40 PM, Fritz Mueller via cctalk wrote:
Those reading through the recent "PDP-11/45
RSTS/E boot problem" thread here will know that I've gotten to some corners of my
11/45 CPU now that don't match up with the commonly available engineering drawings.
My /45 is an early serial number (#152). So far I've verified hardware differences
on at least my M8100 and M8105 cards and spares, relating to parity error abort handling.
I would really like to track down any of the following resources:
- PDP 11/45 system engineering drawings *earlier* than those currently available on
bitsavers (Jun '74)
- Any PDP 11/45 backplane wire list (what looks to be a wire list in the currently
available engineering drawings is actually only a breakdown of the power harness.)
- PDP 11/45 ECO information, particularly the following:
M8100 00003
M8103 00005
M8105 00005
M8106 00007, 00008, 00012, 00012A
M8110 00008
KB11-A 00015
Bitsavers seems to have a DEC-O-LOG for M8105, but this does not contain specifics on
cuts and jumps for ECO 00005, referring only to the associated "kit".
DEC-O-LOGs for the other processor boards are missing.
If anybody thinks they might have any of this info squirreled away anywhere, I'd
really love to find out more about it!
Parts of the ECO's are pretty easy to figure, just by comparing the state of my
existing boards to the '74 drawings. But other parts not so much...
thanks much,
--FritzM.