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. > >
I am working on transcribing some DEC-O-Logs - more than are on bitsavers that relate to the KB11-A and its cards. In the process, I came across KB11A-B0008 - which indicates that NPG, PA, PB, LTC, ACLO, DCO and +15V are ALL missing in slots 26-28. That FCO was dated SEP-72, and specifically mentions the DL11. I think you had mentioned that issue in another post. Also, I have at least two sets of DEC-O-Logs. (JAN 86 and JUL 86) that cover the 11/45. I would be happy to loan a set out to someone who promised to scan or print/scan a set. I hope to be done transcribing later today. NOTE: The M8110 looks like a mess - lots of ECOs that culminate in replacing with an M8120. You might not want to use it, and just use other MS11s.
