Old Unibus PDP-11 XXDP diagnostics

From: Tom Uban <uban_at_ubanproductions.com>
Date: Tue Dec 21 11:15:10 2004

At 06:01 PM 12/21/2004 +0100, Johnny Billquist wrote:

>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.

I would prefer to see the list BW used by topics such as this than the
numerous other completely off topic discussions which seem to congest
my mailbox.


> Johnny
>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 - 11:15:10 GMT

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