Hi guys,
I've got a Citizen Z1DE-55A (3.5" 1.44MB PC) floppy drive hooked up to
the disc analyser (it seems my Sony MPF520 has a duff head; it's reading
garbage for one side of the disc). Here's the problem...
- When the drive is selected, irrespective of head position, TRK00 is
always inactive.
- If the drive is given a seek command, it will seek to track 0, assert
TRK00, but the INDEX and READ DATA outputs will go idle (float high).
- The drive remains stuck in this state until power-cycled.
Has anyone seen this kind of thing before? The MPF520 had a head-step
lockout (if track0_sensor == active, then ignore STEP commands) but
didn't crash out if you asked it to step.
For what it's worth, the drive works fine in my PC... I just can't see
why it's locking up like this.
Also, am I right in thinking that pins 12 (DS1) and 16 (MOTEN) are the
two I need to pull low to select the drive, if it's connected before the
twist in the cable? And that DS0 and DS2 would be the select and motor
enable pins (respectively) if the drive was located after the twist?
Citizen are, as always, their usual "helpful" selves: "We don't make
floppy drives, we never made floppy drives. LA-LA-LA, NOT LISTENING!"
Thanks,
--
Phil.
classiccmp at philpem.me.uk
http://www.philpem.me.uk/
I found an old FIDONET nodelist from June 13 1986 in my files today. This
list is missing from any online archives I could locate, but I assume that
there *must* be a comprehensive list from the 1980's, right?
I have uploaded the nodelist here:
http://www.vintagecomputer.net/fidonet/
1986 #164
Here is the best archive I could find in a brief search of the web:
http://ambrosia60.dnsalias.net/fidonet/nodelist.php
Does anyone have any nodelists they'd like to share? If so send to me and
I will post on my site. It's a shame that there is not more of a
comprehensive nodelist archive.
Bill
Hi!
I've got my hands on a VAXstation 4000 VLC, unfortunately with no RAM.
Though I'm not 100% sure, it seems it would work with fast page 72pin
SIMM modules (FPM), as long as it is with parity.
Does anybody of you have some spare (up to 6) 4MB FP-SIMM modules
(= 24MB total) with parity for me?
Thanks, JBG
--
Jan-Benedict Glaw jbglaw at lug-owl.de +49-172-7608481
Signature of: Alles wird gut! ...und heute wirds schon ein bi?chen besser.
the second :
Rob Jarratt wrote:
> A friend of mine has one of these. I know nothing about them. Just wondering
> if this is likely to have some financial value. I know it depends on what
> buyers are prepared to pay and all that, but just wondering as I could not
> find any on ebay, so is it unusual or just uninteresting?
>
> Thanks
>
> Rob
>
>
>
lc2 and lc3's are nice little machines, but I have not seen them go for
much. They are still 68030 based machines, but as far as value they
don't have much.
I always wanted to use one of the lc3's I have for a linux box, but have
not had time to see how that would work out.
jim
A friend of mine has one of these. I know nothing about them. Just wondering
if this is likely to have some financial value. I know it depends on what
buyers are prepared to pay and all that, but just wondering as I could not
find any on ebay, so is it unusual or just uninteresting?
Thanks
Rob
I just went through my stack of HP computers and I have
too many 9000-310's
These are 68010 processors with 1 meg of ram and RGB
bit mapped video. No keyboard or HPIB drive. (external) All
are in good condition and have just been booted. Some are
missing the rear cover plates for memory. These use a standard
HP HIL keyboard.
Price is free, But local pickup only. I also have at least 1 desk
side cabinet for these or the 7937 disk drives
Located South of Seattle, WA.
- Jerry
Is anyone here interested in connecting a TRS-80 PT-210 printing terminal
to something through an rs232 serial port? I just put the finishing
touches on a board layout I made by following the schematics in the
service manual. The next step is to have a prototype made at
batchpcb.com. Anyone interested in taking a look?
--
David Griffith
dgriffi at cs.csubak.edu
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
At work we're clearing out half my floor to consolidate office space.
What we don't set aside or spirit away by EOD today will be cleared out
by some contractor next week.
We've been told repeatedly that the stuff will be trashed, not salvaged,
and they don't use open/untended dumpsters. We also have /assinine/
[sic] rules about removal of anything and everything from the office - I
can't haul out plain boxes of stuff, but if it fits in a bag or backpack
I can slowly remove it. It's enough of a pain that I'm asking for a
couple bucks more than just S&H, but if it will be useful to somebody
I'll do it - just buy me a beer per item. PayPal preferred.
There are two different boxed editions of C++ Set dev tools for OS/2,
numbers 2.1 are in there somewhere. Don't have them in front of me or
I'd provide details, but they both included media and some books.
I can grab at least a half dozen shrink-wrapped boxes of Sytos Premium
backup/recovery software for OS/2 by Arcada/Seagate ("Supports OS/2 Warp
& Lan Server 4.0! Includes Graham Utilities Light!").
Have a genuine IBM box of "OS/2 Programming Tools & Information Version
1.2/1.3 Technical Upgrade 3.5'' Diskettes" with diskettes and manuals,
mentions PM/2 and "C2, COBOL/2, FORTRAN/2 and Macro Assembler/2" bindings.
Unboxed, I have the following developer bits in front of me:
Collection 1:
IBM Developer's Toolkit for OS/2 2.0 media kit on 3.5" floppy
IBM C/C++ Tools/2 2.0 media kit on 3.5" floppy
(these appear complete, but I cannot verify)
- Dev Toolkit Getting Started guide
- C/C++ Tools 2.0 Class Libraries Reference Summary
- " " " UI Class Library User's Guide
- " " " Programming Guide
Collection 2:
IBM Developer's Toolkit for OS/2 2.1 media kit on CD & 3.5" floppy still
bagged
IBM C/C++ FirstStep Tools 2.01 media kit on 3.5" floppy still bagged
- Developer's Toolkit 2.1 Getting Started Guide
- FirstStep Tools Programming Guide
- " " " Debugger Introduction & Reference Summary
If you're willing to cover shipping and a couple bucks for an item, let
me know. First come, first served. I'll try shipping outside the US up
until the paperwork becomes a pain, but will let you know and return
funds if it falls through. For reference I'm in California, shipping
>from ZIP code 94596 or I can arrange to meet in the East (SF) Bay.
--Steve.