21 May
2016
21 May
'16
5:21 p.m.
Hello,
the EPROMs are labeled 07595-18045 and 07595-18046.
Can anyone do a dump for me? It's really urgent. Our local hackerspace
wants to get rid of it, if there is no chance to get the Firmware again.
greetings,
Martin
22 May
22 May
1:53 a.m.
Martin, I might be able to help you as I think we have a 7596A.
Are these EPROMs from the processor PCA? Are you able to tell me which 'U'
numbers they are in the PC board?
I haven't looked at the plotter itself, but the service manual we have shows
the following part numbers for the processor PCA
07595-18039
07595-18040
07595-18041
07595-18042
So I'm not sure if my manual is old and the plotters at that time had 4
EPROMs and yours is newer and has 2? Or are they on another PCA somewhere?
Let me know.
If the plotter we have is in the main museum facility I can possibly help
you, I will check.
David Collins
Curator
HP Computer Museum.
-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Martin
Peters
Sent: Sunday, 22 May 2016 7:21 AM
To: cctalk at classiccmp.org
Subject: HP Draftmaster II 7596A: EPROM dumps needed, urgent :-(
Hello,
the EPROMs are labeled 07595-18045 and 07595-18046.
Can anyone do a dump for me? It's really urgent. Our local hackerspace wants
to get rid of it, if there is no chance to get the Firmware again.
greetings,
Martin
3:49 p.m.
Hi David!
David Collins:
Martin, I might be able to help you as I think we have
a 7596A.
Great! :)
Are these EPROMs from the processor PCA?
I think so.
Are you able to tell me which 'U'
numbers they are in the PC board?
No, not now. The plotter is in the shackspace in Stuttgart and I was not
there for several weeks and now I found an email saying they want to get
rid of it. I already asked for the dumps here one year ago and now it
seems to be really urgent.
I haven't looked at the plotter itself, but the
service manual we have shows
the following part numbers for the processor PCA
07595-18039
07595-18040
07595-18041
07595-18042
I know. As I was told by the guy who took a look inside one year ago,
these parts do not exist in the revision we own. But I think, they only
put the firmware in two EPROMs at HP in a newer revision of the board.
And if not "only", I think the dumps would be helpful anyway. It would
be great if you could do a dump for me :-)
Many thanks,
Martin
--
Martin Peters
martin at shackspace.de
24 May
24 May
10:25 a.m.
Here are the binaries for all the EPROMs on processor PCA for my 7596A. The
PCA part number is 07595-60100 and is different from the one in the manual
which is a 07595-60200 so I assume my PCA is older than the one in the
manual.
The EPROMs on the PCA are as follows:
17225-18001 U26
17225-18002 U35
17225-18003 U41
17225-18004 U42
07595-18097 U28
07595-18098 U37
Unknown U27 - no part number label
Unknown U36 - no part number label
Binaries for each chip are attached. All are 27512 EPROMs.
I have also included photos of the PCA and the EPROMs in position. Hope
that helps.
David Collins
Curator
HP Computer Museum
www.hpmuseum.net
-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Martin
Peters
Sent: Monday, 23 May 2016 5:50 AM
To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org>
Subject: Re: HP Draftmaster II 7596A: EPROM dumps needed, urgent :-(
Hi David!
David Collins:
Martin, I might be able to help you as I think we have
a 7596A.
Great! :)
Are these EPROMs from the processor PCA?
I think so.
Are you able to tell me which 'U'
numbers they are in the PC board?
No, not now. The plotter is in the shackspace in Stuttgart and I was not
there for several weeks and now I found an email saying they want to get rid
of it. I already asked for the dumps here one year ago and now it seems to
be really urgent.
I haven't looked at the plotter itself, but the
service manual we have
shows the following part numbers for the processor PCA
07595-18039
07595-18040
07595-18041
07595-18042
I know. As I was told by the guy who took a look inside one year ago, these
parts do not exist in the revision we own. But I think, they only put the
firmware in two EPROMs at HP in a newer revision of the board.
And if not "only", I think the dumps would be helpful anyway. It would be
great if you could do a dump for me :-)
Many thanks,
Martin
--
Martin Peters
martin at shackspace.de
12:17 p.m.
On Tue, May 24, 2016 at 10:25 AM, David Collins
<davidk.collins at bigpond.com> wrote:
Here are the binaries for all the EPROMs on processor
PCA for my 7596A. The
PCA part number is 07595-60100 and is different from the one in the manual
which is a 07595-60200 so I assume my PCA is older than the one in the
manual.
I did not have an 8mm socket wrench with me when I visited my 7596A so
I wasn't able to entirely remove the cover. I did slip the camera in
under the lower edge and did extract U28 and U37 from mine for
dumping...
The EPROMs on the PCA are as follows:
17225-18001 U26
17225-18002 U35
17225-18003 U41
17225-18004 U42
These were empty on my plotter, best I could tell.
07595-18097 U28
07595-18098 U37
I found these in those sockets:
07595-18095 U28
07595-18096 U37
Unknown U27 - no part number label
Unknown U36 - no part number label
These sockets are definitely empty on my plotter.
Binaries for each chip are attached. All are 27512
EPROMs.
This list doesn't support attachments, so most of us didn't get them.
I'm happy to send along my copies of 07595-18095 / 07595-18096 when I
get them read out.
-ethan
4:04 p.m.
I realised the attachments wouldn't show in the general email but I figured the only
people who needed the binaries right now were the original posters who got them directly
from the email.
I'll put up the binaries of my EPROMs and the ones of yours when you post them as
downloads in the museum website over the next few days so they are there for the future
for anyone else who might need them.
Martin/Joachim, let us know if any of the files you now have or will get fixes your issue
and if a Draftmaster II is saved as a result!!
David Collins
www.hpmuseum.net
On 25 May 2016, at 2:17 AM, Ethan Dicks
<ethan.dicks at gmail.com> wrote:
On Tue, May 24, 2016 at 10:25 AM, David Collins
<davidk.collins at bigpond.com> wrote:
Here are the binaries for all the EPROMs on
processor PCA for my 7596A. The
PCA part number is 07595-60100 and is different from the one in the manual
which is a 07595-60200 so I assume my PCA is older than the one in the
manual.
I did not have an 8mm socket wrench with me when I visited my 7596A so
I wasn't able to entirely remove the cover. I did slip the camera in
under the lower edge and did extract U28 and U37 from mine for
dumping...
The EPROMs on the PCA are as follows:
17225-18001 U26
17225-18002 U35
17225-18003 U41
17225-18004 U42
These were empty on my plotter, best I could tell.
07595-18097 U28
07595-18098 U37
I found these in those sockets:
07595-18095 U28
07595-18096 U37
Unknown U27 - no part number label
Unknown U36 - no part number label
These sockets are definitely empty on my plotter.
Binaries for each chip are attached. All are
27512 EPROMs.
This list doesn't support attachments, so most of us didn't get them.
I'm happy to send along my copies of 07595-18095 / 07595-18096 when I
get them read out.
-ethan
27 May
27 May
8:40 a.m.
Hi David, hi Ethan!
We managed to get the plotter working again. Thanks to both of you, for
your help. The newer Fireware seems to work fine, but there are still
some problems with the buffer handling for our self-written software.
The guy who wrote the software promised to publish it, when it's done.
Greetings,
Martin
--
Martin Peters
martin at shackspace.de
8:33 p.m.
Great to see another HP plotter from that era is up and running again...
Thanks for reaching out!!
David Collins
curator at hpmuseum.net
-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Martin
Peters
Sent: Friday, 27 May 2016 10:41 PM
To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org>
Subject: Re: HP Draftmaster II 7596A: EPROM dumps needed, urgent :-(
Hi David, hi Ethan!
We managed to get the plotter working again. Thanks to both of you, for your
help. The newer Fireware seems to work fine, but there are still some
problems with the buffer handling for our self-written software.
The guy who wrote the software promised to publish it, when it's done.
Greetings,
Martin
--
Martin Peters
martin at shackspace.de
24 May
24 May
5:25 p.m.
On 24.05.2016 16:25, David Collins wrote:
Here are the binaries for all the EPROMs on processor
PCA for my 7596A.
Wow, that was really quick, thank you so much!
The
PCA part number is 07595-60100 and is different from the one in the manual
which is a 07595-60200 so I assume my PCA is older than the one in the
manual.
Judging by your photos and the ones I made last time I had the plotter
open, I'm pretty sure that's the same PCA ours has.
07595-18097 U28
07595-18098 U37
Our plotter only had these two sockets populated. The two ROMs contain
the even/odd bytes of a 128K image. I combined them and compared them to
the dump we took of our broken ROMs (with lots of bit errors), and they
seem to be structured very similarly, so this might well be a later
version of the same firmware.
Unknown U27 - no part number label
Unknown U36 - no part number label
These are mostly empty and I couldn't find any recognizable strings in
there. Might be additional machine code as the U28/U37 ROMs are pretty
chock full.
The 17225-* ROMs don't look like firmware, but seem to contain several
demo plots, maybe for exhibition purposes?
Binaries for each chip are attached. All are 27512
EPROMs.
Nice, we even have a few of those in our parts collection \o/ I hope
I'll find time this weekend to burn and plug them and give them a test run.
I have also included photos of the PCA and the EPROMs
in position. Hope
that helps.
Yes, very much, thanks again!
All the best
Joachim
4:44 p.m.
Here's a link to the files I have. I'll update this with the additional
images from Ethan when they are available and put a front end to the files
in the museum.
http://www.hpmuseum.net/software/7595Afirmware.zip
David Collins
-----Original Message-----
From: David Collins [mailto:davidk.collins at bigpond.com]
Sent: Wednesday, 25 May 2016 12:26 AM
To: 'General Discussion: On-Topic and Off-Topic Posts'
<cctalk at classiccmp.org>; 'martin at shackspace.de' <martin at
shackspace.de>;
'Joachim Fenkes' <dojoe at dojoe.net>
Subject: RE: HP Draftmaster II 7596A: EPROM dumps needed, urgent :-(
Here are the binaries for all the EPROMs on processor PCA for my 7596A. The
PCA part number is 07595-60100 and is different from the one in the manual
which is a 07595-60200 so I assume my PCA is older than the one in the
manual.
The EPROMs on the PCA are as follows:
17225-18001 U26
17225-18002 U35
17225-18003 U41
17225-18004 U42
07595-18097 U28
07595-18098 U37
Unknown U27 - no part number label
Unknown U36 - no part number label
Binaries for each chip are attached. All are 27512 EPROMs.
I have also included photos of the PCA and the EPROMs in position. Hope
that helps.
David Collins
Curator
HP Computer Museum
www.hpmuseum.net
-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Martin
Peters
Sent: Monday, 23 May 2016 5:50 AM
To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org>
Subject: Re: HP Draftmaster II 7596A: EPROM dumps needed, urgent :-(
Hi David!
David Collins:
Martin, I might be able to help you as I think we have
a 7596A.
Great! :)
Are these EPROMs from the processor PCA?
I think so.
Are you able to tell me which 'U'
numbers they are in the PC board?
No, not now. The plotter is in the shackspace in Stuttgart and I was not
there for several weeks and now I found an email saying they want to get rid
of it. I already asked for the dumps here one year ago and now it seems to
be really urgent.
I haven't looked at the plotter itself, but the
service manual we have
shows the following part numbers for the processor PCA
07595-18039
07595-18040
07595-18041
07595-18042
I know. As I was told by the guy who took a look inside one year ago, these
parts do not exist in the revision we own. But I think, they only put the
firmware in two EPROMs at HP in a newer revision of the board.
And if not "only", I think the dumps would be helpful anyway. It would be
great if you could do a dump for me :-)
Many thanks,
Martin
--
Martin Peters
martin at shackspace.de
22 May
22 May
3:51 p.m.
On 05/21/2016 10:53 PM, David Collins wrote:
Martin, I might be able to help you as I think we have
a 7596A.
Are these EPROMs from the processor PCA? Are you able to tell me which 'U'
numbers they are in the PC board?
I haven't looked at the plotter itself, but the service manual we have shows
the following part numbers for the processor PCA
07595-18039
07595-18040
07595-18041
07595-18042
So I'm not sure if my manual is old and the plotters at that time had 4
EPROMs and yours is newer and has 2? Or are they on another PCA somewhere?
Let me know.
If the plotter we have is in the main museum facility I can possibly help
you, I will check.
David Collins
Curator
HP Computer Museum.
If your version has four EPROMs and the later (otherwise identical)
machine only used two then chances are the four earlier EPROMs were
simply combined into two later ones. For example, if the original EPROMs
were 2708s then two of those would fit into a single 2716. The 2716 was
easier to program as well being only a single voltage device.
Combining the images is easy as well. The first 2708 image goes from
000h to 3FFh and the second would go from 400h to 7FFh, as a 2716 holds
000h to 7FFh worth of data vs. 000h to 3FFh for the older 2708.
Of course this would also work for 2716s into 2732s, etc. just the data
boundaries change to reflect the device size.
John :-#)#
-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Martin
Peters
Sent: Sunday, 22 May 2016 7:21 AM
To: cctalk at classiccmp.org
Subject: HP Draftmaster II 7596A: EPROM dumps needed, urgent :-(
Hello,
the EPROMs are labeled 07595-18045 and 07595-18046.
Can anyone do a dump for me? It's really urgent. Our local hackerspace wants
to get rid of it, if there is no chance to get the Firmware again.
greetings,
Martin
--
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, VideoGames)
www.flippers.com
"Old pinballers never die, they just flip out"
24 May
24 May
2:46 a.m.
On Sun, May 22, 2016 at 3:51 PM, John Robertson <jrr at flippers.com> wrote:
On 05/21/2016 10:53 PM, David Collins wrote:
>
> Martin, I might be able to help you as I think we have a 7596A...
>
> I haven't looked at the plotter itself, but the service manual we have
> shows the following part numbers for the processor PCA
>
> 07595-18039
> 07595-18040
> 07595-18041
> 07595-18042
After wrestling it out of a tight corner and pulling the side panel
off and all the machine screws and nuts off the electronics housing,
my 7596A had 2 EPROMs, marked (w/Intel logo):
1818-3825
S70137
According to http://www.cpu-world.com/forum/viewtopic.php?t=25006,
they should be 27C512s. They are 28-pin parts with the same
coloration and lettering as real Intel 27C512s.
> the EPROMs are labeled 07595-18045 and
07595-18046.
The paper labels on mine have the part numbers:
07595-18095
07595-18096
Could you have read '4' instead of '9' perhaps, or perhaps mine are a
different revision?
My plotter has two DB25F connectors and one IEEE-488 connector. I'm
not sure what other features (besides date of manufacture) might lead
to different ROM revisions.
If your version has four EPROMs and the later
(otherwise identical) machine
only used two then chances are the four earlier EPROMs were simply combined
into two later ones. For example, if the original EPROMs were 2708s then two
of those would fit into a single 2716. The 2716 was easier to program as
well being only a single voltage device.
This device is far newer than those parts, but the principle is the
same, of course.
I should be able to read these out this week and share the contents.
-ethan
2973
days inactive
2980
days old
11 comments
5 participants
participants (5)
-
davidk.collins＠bigpond.com -
dojoe＠dojoe.net -
ethan.dicks＠gmail.com -
jrr＠flippers.com -
martin＠shackspace.de