Looking for DEC RA80 (or RM80, R80) service manual (EK-ORA80-SV or similar)

[Paul Anderson]

I pulled some RA60, R80, R81, etc. prints and manuals earlier, but left
them in the basement when I came upstairs.I will bring them up tomorrow and
put out a list.

Thanks, Paul

On Sun, Oct 20, 2019 at 5:47 PM Josh Dersch via cctalk <
cctalk at classiccmp.org> wrote:

> On Fri, Oct 18, 2019 at 1:45 PM Antonio Carlini via cctalk <
> cctalk at classiccmp.org> wrote:
>
> > On 18/10/2019 05:51, Josh Dersch via cctalk wrote:
> > >
> > > (I should also note that there is an R80 service manual on Bitsavers
> -- I
> > > misspoke (mistyped?) in my initial e-mail.  It doesn't provide a lot of
> > > details on the drive's operation and I was hoping the RA80 or RM80
> > manuals
> > > might be more detailed...)
> >
> > I'm guessing you mean AA-M186B-TC "RA80 Maintenance Guide", but if not,
> > that's there.
> >
> > (Assuming I've not mis-typed something, I seem to have a later version,
> > AA-M186C-TC, but I've not scanned that).
> >
> >
> > Someone else was looking 10 years ago:
> >
> >
> >
> >
> https://alt.sys.pdp11.narkive.com/gXk9CvKT/looking-for-ra80-service-manual-ek-ora80-sv
>
>
> Yeah, I saw that while searching as well.  The service documentation that's
> available for the R80/RA80 is somewhat useful but lacks detailed technical
> information, it's a step above a board-swapping guide for service techs,
> basically.
>
> I spent some time yesterday with the schematics (which, annoyingly, don't
> match my revision of the boards...) and immediately discovered that the
> optical sensor on the spindle wasn't working anymore -- it was definitely
> operational when I first started working on it but apparently it gave up
> the ghost after running for a few hours.  So at minimum I need to fix that,
> there may still be other faults.  The sensor picks up light, but it looks
> like the LED light source on the other end of it is dead.  I'm going to
> attempt to bodge in a replacement IR LED and see if that's good enough...
>
> Thanks all,
> Josh
>
>
>
> >
> >
> >
> > but seemingly with no luck.
> >
> >
> > I think the FMPS must be on bitsavers but I hit this first:
> >
> >
> > https://usermanual.wiki/Document/MP01286RA80Mar82.3622064137
>
>
>
>
>
> >
> >
> >
> > Antonio
> >
> >
> > --
> > Antonio Carlini
> > antonio at acarlini.com
> >
> >
>