12 Jan
2013
12 Jan
'13
4:37 a.m.
On 1/11/2013 12:09 AM, tony duell wrote:
I'm not, but I suppose at this point I probably should be :). I'd be
interested in seeing your articles. I've found a couple of things
attributed to you on repairing the printer and the card reader, and I'll
be attempting repair of the printer as soon as the cold-shrink tubing I
ordered arrives. (Platen is basically tar at this point.)
Good to know. The ones that are in there seem to be in good shape,
they're still pretty rubbery and aren't degrading into goo like
everything in the 9810 did. But I'll need to replace them at some
point, I'm sure.
Cool. I've now got the 9830 service manual and I'll be doing some
debugging this weekend.
Youy may have noticed that I have been absent for a
while. The reason is
that my home internet access is down, due to problems at the ISP end
(I think). I am reading this in an internet cafe...
Hope your internet connection is restored soon!
Picked up a very dirty but nearly entirely
functional HP 9810A recently,
with 9865ACassette Memory drive. While I wait for parts to repair the
9810's mag card reader and printer to arrive, I've been working on
cleaning up the9865A.
Are you a member of HPCC? The reason I ask is that I wrote a
series of
articles for the HPCC magazine on repairing this series of machines, and you
might find them interesting. I would offer to send them to you, but of course
there's no real way to transfer them at the moment. It is almost working (and the few rubber parts in
it seem to be good) --
I would strongly recomend replacing the 2 'tyres' on
the drive wheels. They're
size 119 O-rings IIRC, and are not hard to get. however it will not move the tape forward. There
are two solenoids that
control the direction of the tape and one of them (for the forward
direction) is not activating. It shouldn't betoo difficult to trace down
the circuit and find the faulty part but before I dig too deep I thought
I'd see if anyone has a service manual for this thing. I've looked in
the usual places on the 'net and haven't found anything, aside from
Tony's notes for the interface.
I believe that some of the boards in the
internal tape controller of the
HP9830 are the same (or at least very similar) to those in the
HP9865 -- at least they have 09865-xxxxx part numbers. The
official HP service manual covers the controller to component
level, and of course there are my schematics for the HP9830.
I think the board you want to be looking at (and I am doing
this from memory) is the 09865-66564. There's a little
logic and a couple of transistors to drive the solenoids.
I assume the solenoid isn't burnt out ...
I will definitely be checking that. I need to trace the wires back to
where they connect to the logic board first.
Thanks!
- Josh
-tony