22 Jun
1998
22 Jun
'98
5:09 a.m.
Hi Bruce,
I had most of your problems on a ra90 ...
----------
From: Bruce Lane <kyrrin(a)jps.net>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Subject: Help! RA82, etc.
Date: Sunday, June 21, 1998 9:40 PM
OK... I've got a MicroVAX II almost ready to go.
However, I'm
handicapped
by my lack of any documentation for the RA82 disk
drive.
sure you are ;-))
The problem: When spun up, even when connected to the
KDA50 controller,
the drive gets up to speed, seeks a couple of times, and then lights
'Fault.'
My question: Do I even have the thing wired right? Could someone
familiar
with this stuff describe to me which cable goes where,
just to make sure
I'm not hallucinating?
at least, if you are really sure, you made the right connections, test &
check it again. the sdi cables are very picky, if you "made" a connection,
be sure to fasten the screws also. sometimes it doesn't work without fasten
it.
The controller seems OK. It passes its internal and
service diagnostics,
and when I stare at the LEDs on the two boards long enough I can see some
sort of fast scanning sequence going on about every 5-7 seconds.
one more shot in the dark ;-))
the ra81 & ra82 have in diagnostic port on the disks. you can get more
information about the disks, if you put a terminal at it. But don't ask, i
never done it, (i got my disks to run without it) try DejaNews.
hope it helps a little,
emanuel