Hello all,
A first note: this machine works perfectly with the original rom (81-302) and hard drive (Seagate ST212).
Now to the crazy stuff: I recently got the image and docs for the Kaypro turbo rom ver. 3.4. I've burned the eprom with 2 different burners and the roms match the 8k code when verified. I used a 27c64 and a 2764a. When I install the trom, the machine doesn't access the floppy drive. I get the startup screen for the turbo rom and a flat line cursor about 1/3 the way down the screen on the left side and then the machine hangs, no keyboard etc. This happens with the original hard drive installed or any of 4 other drives that I've tried (Seagate ST225 - brand new, ST277R, ST251, and Mitsubishi MR535. If I put the original rom back in, it boots from the floppy and I can format any of the hard drives mentioned. At one point (original rom in), I formatted the ST225 with the Advent advfmt.com program and it crashed while partitioning and when I put the trom back in, I got a boot error (good news because it saw the hard drive) and the floppy drive lit up. I rebooted with a floppy and was able format the hard drive successfully and copy programs to the 3 partitions - 8, 8, & 4 megs. I was filling up the second partition when I got a few bad sector errors so I decided to use one of the bigger drives that I have. This wasn't a good move because now the trom won't access the floppy again. Does any of this make sense? Thanks for listening.
Ralph
Hi,
Does anyone know the part designation for the keyboard on an HP2648A?
I've looked through the manual (unfortunately not OCRed so a visual
inspection of all pages is required) but didn't see a part number for
the keyboard itself.
Anyone have one of these?
--
"The Direct3D Graphics Pipeline"-- code samples, sample chapter, FAQ:
<http://www.xmission.com/~legalize/book/>
Pilgrimage: Utah's annual demoparty
<http://pilgrimage.scene.org>
Allright, I had a look at the schematics during the lunchbreak
to prepare for some measurements this evening. Let me know if
my conclusions from a look at the schematics are ok, so far.
On page 'M7900 UNIBUS INTERFACE (UB7)' the databus bit 15 is
connected to the tranceiver 8641 (E10) pin 15.
If pin 9 (UB7 ENA DATA DRVRS L) is '0', input pin 14 appears
inverted at the pin 15.
As the diagnostic says that it expects 000200 on reading CS1,
and the result is 100200, you can say 2 things:
1) 'problem' with data bit 15 (where ever)
2) as the signal "UB 7 ENA DATA DRVRS L" is common to E3, E10,
E11, E2, and E1 that signal must (?) be OK, because that
signal enables all other databus bits, which seem OK.
So, either E10 (in #14, out #15) is defective, or the problem
is already with the signal driving pin 14 ("TS REG BUS 15 H").
Since I don't have a 4-channel 'scope, and I need to follow 3
signals (in/out/enable), I guess I will get out the D100 again.
- Henk.
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> > Great! Thanks Al, and the person that provided them!
> > I will download them tomorrow and print them.
>
> Now I'd better look for my prints so I can follow along....
Thanks!
I have the 3 dual width extenders already next to the machine!
> > I have a day off, to pick up an 11/34 with a LAB-11
> > and ... an RK07!
>
> You'd better not try board-swapping between those 2
> RK611s.... More seriously, nice find.
The idea crossed my mind :-) , but is was not board swapping ...
I thought of swapping the whole RK611 backplane and modules,
because the hauled machine was in working condition decommisioned.
The RK611 that I have installed is completely unknown. I had the
RK611 backplane already a few years, and I got the 5 modules just
last year, not known-good, but neither "known-bad".
There is not much learning experience in any swap approach, be it
a module or a complete system unit, so I downloaded the RK611
print set ... - thanks again, Al.
A more complete description: it is an 11/34 with RX01, RK05/f, RK05/j,
Laboratory Peripheral System, Kennedy 9100 (vertical) tape drive,
expansion BA11 box and one RK07. We did lock the RK05 heads before
moving of course. (We = Edward and I).
There is also a "BA11 expansion box sided" box from Plessey, but
I have not yet looked at the details of the machine, so that
Plessey box is a black box to me at this point.
- Henk.
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If you have received this communication in error, please notify the sender immediately by telephone and with a "reply" message.
Thank you for your cooperation.
Dear Sir ,
I am searching for data cassettes and found your website.
Could you make me an offer for 6 philips certified digital mini-cassette
type LDB 4401
Regards,
Stefan Wolfs
Purchasing Manager
tel.: 0032 11 697 204
fax.: 0032 11 681 307
mail: stefan.wolfs at hmz.be
www.hmz.be
Hi,
regarding the CGA, the technical manual mentions a 160x200 mode with
more that 4 colors. It doesn't give any more information on how to
enable this mode, though.
Does anyone on this list know how to enable this mode, or better, has
a demo program which does that?
regards,
chris
hi, IM ken blinn IMO looking for a kaypro 2 operation manual and cp/m sbasic manual .
I have 1 WordStar floppy . can you help me
thank you
ken blinn
p s can you help me find some floppy to use on it
FWIW, AFAIK & IIRC (I just love abbrev.) the metal-cased Horizon did not
appear until several years after NorthStar made its appearance with its
original model. The wooden case was veneered plywood stained walnut in
color. I don't believe that it was walnut veneer.
The end pieces of the Sol were solid walnut. The story goes that a friend
of one of partners in ProcTech had a wood working business with lots of
scrap walnut available, so the Sol had its 2 side panels supplied in that
wood. The kit version had instructions for finishing the wood with tung
oil.
I still have several Sols (my first computer) and several Horizons (all with
wooden cases). I think Allison has (had?) at least one Horizon with the
metal case. Once I get a round TUIT, I plan on making a walnut case for my
reproduction Mark-8 (the round TUIT being the most critical component and
one I have not yet found).
Bob Stek
Saver of Lost Sols
(should be a bit more active now that I have officially retired)
