I'm looking at a reference to the brand "TX Peripherals". A link to
their website just brings up the Tapes4u, so I suspect they're out of
business.
The Wayback machine shows a few pages. It looks as if their 9-track
setup used a rebadged Cipher drive, but that's about all I can tell
about them.
Did they use Pertec-interfaced 9 track drives?
Thanks,
Chuck
Hi Tony
Yes, there is activity in the address lines at least.
I would beleive is gets hung on something. I can see
some activity for a breif period in different parts
of the board. like it was in self test. Then it looks
like it gets hung. Not sure what type of a Processor
it uses, but watching the address lines on the roms
it starts out Ok. With all of the Error codes in the
manual and none being displayed, It would have to be
a very low level problem.
As Dave pointed out, it's not a true DEC item.
So with out much to go off of it would be a long up
hill battle.
- Jerry
-------------- Original message ----------------------
From: ard at p850ug1.demon.co.uk (Tony Duell)
> > It turns on and when you push "logic on" it goes
> > into self test and just stays there with out any
> > codes displayed. Display just stays at "00"
> > voltages look close. DEC manual says system main
> > board or voltages off. I guess they just had a
> > stack of spare boards to test with.
>
> Again, I've never worked on one of these, so this is very generic
> information.
>
> If there's a recognisable microprocessor on the controller board, I'd
> check it was getting a clock signal, that the reset line wasn't being
> held asserted, and then check that there was activity on the bus lines
> from said microprocessor.
>
> This might give you an idea of where to start looking for the fault.
>
> -tony
> For the TC08 and similar devices, the issue really comes down to
> the Posibus interface and the Blinkenlights. Both are key features
> of the TC08, and both are very pin-hungry.
Lights can be serially multiplexed to an external holding register / light
driver on the panel.
A TC08 on an omnibus card would be useful too.
--- Chris M <chrism3667 at yahoo.com> wrote:
>
> --- aliensrcooluk at yahoo.co.uk wrote:
>
> > That's easy. The Amiga CD32 (I own one).
> > I got all the A600 related questions right,
> > which is good as I own two :)
>
> Hmm a rather late use of the chip - 1993 (the
> original Mac II had it in 1987). I think I'm
> intrigued. There's a few new ones on ePay for arou
nd
> $100, not a colossal sum, but I just don't feel li
ke
> getting Shanghaied ;).
> A striking resemblance to the Sega Genesis, and
> according to Wiki it can use it's controllers.
> I think I'll save my cash for a 1000 though when
it
> comes along.
>
It can, however the wiring needs to be
swapped (didn't we talk about this a few
months ago?) otherwise using the Megadrive
controllers can blow a chip (CIA, IC or
whatever it was).
Regards,
Andrew B
aliensrcooluk at yahoo.co.uk
Ethan wrote:
> I don't have any docs on the CompuServe board, but I can give you a
> historical tidbit or two... (snip)...
>
Ah, thanks for the education. Very interesting. Are there any good
online sources of historical infomation about CompuServe and their data
center? I should google.....
> Try here... http://www.rdrop.com/~jimw/j-boards.shtml ... for a
> picture of what looks to be a CompuServe Node serial card.
>
>
Hmmm...yes, too bad Jim doesn't have the picture behind the thumbnail
online anymore. Would be interesting to see up close. Thanks for the link.
J
> PS. Al, if you read this, it would be great if you get an ftp server up
> and running again...
I no longer have direct control of this, since Jay has generously offered
the space/bandwidth for the main site.
I assume you mean ftp access to the archive?
>Date: Tue, 21 Nov 2006 17:10:06 -0800 (PST)
>From: Chris M <chrism3667 at yahoo.com>
>Subject: wtd: Fujitsu Micro16s
>To: talk <cctalk at classiccmp.org>
>Message-ID: <69858.93343.qm at web61012.mail.yahoo.com>
>Content-Type: text/plain; charset=iso-8859-1
>
>seems to have been more prevalent in Europe then here.
>There was a review in BYTE though.
There was (and may still be) a fellow on Ebay selling a pair for $6
shipped. Ah, here it is
<http://cgi.ebay.com/NEW-MB90552APF-Fujitsu-MCUs-100-Pin-QFP-FREE-SHIP_W0QQi…>
I bought a couple from him but have not done anything with them.
They came wrapped in antistatic wrap that was bundled up in tape. I
don't know if they were already bent, or if I bent the pins undoing
the tape, but either way I was not impressed with his packaging job.
It's been a while, so my memory is hazy, but somehow I was able to
request a CD or DVD of development software from Fujitsu. The
European Fujitsu sites seem to have better information on them.
Plus I don't think I saw any development boards advertised anywhere
except on the European site.
However, when I started thinking at the fine detail level, i.e. how
do I develop software and run it on this board, as opposed to the
coarse detail level, i.e. this board has enough IO pins and memory to
do what I want, I realized that having a decent development kit would
be very important.
The tiny bits of obscure information that the sellers publish about
their development kit totally put me off compared to some of the
great information that's out there for kits for the Freescale 9S12
for example.
So ultimately, I decided that the Fujitsu MCUs will probably stay in
a drawer because it's just to big a pain and risk to get a decent
development board for them.
Of course, my research may have been incomplete or inaccurate and I'd
be happy to be shown that it was.
Jeff Walther
> In general, I think its a bad idea to have everything in any community
> funnel through a single person. What happens if Al (knock on wood)
> should get injured and can't do scans anymore? If we adopted the
> "well, just let Al scan everything because he knows how to do it" and
> it never gets documented on what is the best way to scan documents,
> then we lose everything connected to document scanning when we lose
> Al.
The only thing that currently has me as the bottleneck is actually putting
things onto the web site. I have loaned several people now scanners and as
you say, it isn't a good thing to rely on a single person to do all of the
work. One area that would be useful would be having others help in the
cleanup/post-processing of the raw scans. There is only about 25% of what
I've scanned currently on line.
The things I try to concentrate on are materials that are rare and out of
the mainstream. There are others, for example, that are taking care of
microcomputer docs. I also like to collect material on digital magnetic
storage devices, for their use in data recovery.
I really don't claim to have any 'special knowledge'. There is a particular
document processing flow that I prefer to use to have the documents have a
consistant 'look' to them. It does change over time, though. I have started
adding color cover pages recently as well as more grayscale pictures.
FYI:
I scored 14 out of 30
Regards,
Andrew B
aliensrcooluk at yahoo.co.uk
--- In Commodore_Amiga_Retro at yahoogroups.com, "Paul
Hill" <paulroberthill at ...> wrote:
>
> Hi Amigos,
>
> Just stumbled across this Amiga quiz while looking
logic simulator software:
>
> http://www.tetzl.de/quiz/quizbegin.cgi
>
> I scored 20 points out of 30. How about you?
>
> --
> Paul
>
>> A TC08 on an omnibus card would be useful too.
> Nah, you just need yet more Posibus and Data Break cards for your
> Omnibus machines :-).
8E cabling is horrible. I helped maintain a large TSS/8 configuration
(RK8E,TC08,RF08,PC08, lots of 8655's in an expander box) and a similar OS/8
system w/o the expander box, and those heavy shielded BC08s made working on
the CPU a nightmare. As you are aware, there is neither cable strain relief
nor card guides in those machines. It wasn't uncommon to see an Omnibus card
bent 1/4" back because of the cable strain.
