8 Mar
2004
8 Mar
'04
4:25 a.m.
On Mon, 8 Mar 2004 Brad Parker <brad(a)heeltoe.com> wrote:
Gooijen H wrote:
Yes, I think so. Also, there is a transport safety for the heads. It's a
lever on the HDA, which you should turn to unlocked.
Does the R80 have the terminal interface on one card like the RA8x drives
do? If so, plug a terminal in there and talk with the drive. 1200 bps I
think, though it could be 300. 8N1.
A little info can be found here:
www.pdp-11.nl/peripherals/disk/ra81-info.html
thanks!
Did you tension the belt with the lever at the
right-hand side (at
least there it is in an RA81 drive)?
I did, and it seems to be right, but who knows. Is there any sort of
lock out or micro switch which senses proper belt tension? This is an R80 drive, btw. I'm assuming the RA80,
RB80 and RM80 are all
very similar at the drive end (not the controller end - which is very
different).
Yes, it's the same HDA.
Johnny
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)update.uu.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
8 Mar
8 Mar
5:15 a.m.
On Mon, 2004-03-08 at 18:25, Johnny Billquist wrote:
Does the R80 have the terminal interface on one card
like the RA8x drives
do? If so, plug a terminal in there and talk with the drive. 1200 bps I
think, though it could be 300. 8N1.
300 on the RA81 IIRC from a few weeks ago.
We have two drives ('81s) which seem to have a similar problem to the
original poster's - they appear healthy but just don't want to spin up.
We haven't taken a look at them in the past couple of weeks as a) there
are plenty of other things to be done! and b) Supposedly we're having a
whole pile of original docs for these drives donated to us which I'm
hoping will include some more in-depth diagnostics.
If anything useful comes of the latter I'll shout...
cheers
Jules
10:18 a.m.
Johnny Billquist wrote:
Yes, I think so. Also, there is a transport safety for the heads. It's a
lever on the HDA, which you should turn to unlocked.
I may pull the HDA in a minute - I can see two wires around the belt
tensioning contraption but I have no idea where they go.
Does the R80 have the terminal interface on one card
like the RA8x drives
do? If so, plug a terminal in there and talk with the drive. 1200 bps I
think, though it could be 300. 8N1.
Not that I can find. I didn't see any DB-25 anyway.
It has the same 8 leds & 2 rotaries as an RA81 but it does not appear
to respond in the same way at all.
-brad
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