Old Unibus PDP-11 XXDP diagnostics

From: Johnny Billquist <bqt_at_Update.UU.SE>
Date: Tue Dec 21 11:01:31 2004

On Tue, 21 Dec 2004, Ashley Carder wrote:

> Does anyone have any info/documentation on the XXDP diagnostics for
> older PDP-11 systems and peripherals? I'm looking in particular for the
> 11/40 (11/35), RK05, DZ11, RL02, MM11 core memory, RX01, RL01
> diagnostics. I have found some info on Henk's site, but would like to
> know if anyone has a comprehensive list and hints on how to run these,
> what the output means, how to answer the prompts, etc.

I think I have some information in paper form around somewhere. Probably
easiest to ask about specifics.

> I have created RL02 packs with XXDP 2.5 and XXDP 2.2 and I can boot and
> run stuff from these packs. It appears that the 11/40 diagnostics are
> on XXDP 2.2, but not on XXDP 2.5. I have an old 1976 DEC field rep
> troubleshooting guide that refers to various MAINDECs, which seem to
> have been the diagnostics prior to XXDP. Is there a list somewhere
> showing what the XXDP equivalents of the old MAINDECs are?

I think MAINDECs are the specific test program that you can find on your
XXDP pack.
The older test programs should be runnable on new XXDP as well, but one
RL02 is definitely not enough to hold everything, so they probably
stripped away some older test suits.

> Any help would be appreciated. I want to exercise my 11/40 and
> attached peripherals and see if any subtle gremlins are lurking anywhere
> within. Everything appears to be working perfectly with the exception
> of one of my three RK05 drives that I knew was problematic.

Ask away.
Might as well do it privately as well. No point in usign the bw of the
list for specific items.


Johnny Billquist || "I'm on a bus
                                   || on a psychedelic trip
email: bqt_at_update.uu.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
Received on Tue Dec 21 2004 - 11:01:31 GMT

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