8 Jun
2026
8 Jun
'26
8:29 a.m.
On 6/7/26 11:30, Nigel Johnson Ham via cctalk wrote:
Does the QD21 have the 22-bit addressing kit installed in
U49, with switch 2-6 ON?
Yes, the U49 IC is there. SW2 position 6 is on.
Are SW2-3-4 all set to zero for standard CSR?
Yes, and the CSR does show up at the
right address.
Does the BA23 have the bus terminators installed?
AHH, now this could be the
cause! I saw in some manual that
different terminator SIPs are required for uVAX vs LSI-11.
The ones in there are marked 13-18110.
Are the QD21's three lights are going out?
LED3 stays on = controller idle,
waiting for init.
Do you have the full manual?
Yes.
Have you tried auto booting?
I do not want to connect the drive until the
controller has
been properly configured for that drive model, as I want to
get the data off it.
Anyway, the issue is that when I do the last deposit of the
load diagnostic procedure (D/P/W 2000146A 4401) and then
examine the response (E/P/W 2000146A) I am supposed to get
0400 but instead I get 0200. That is not listed as a known
error code in the manual. Most specifically, it is not 0051
(FRD load to memory failed).
Thanks for any suggestions!
Jon