19 Apr
2009
19 Apr
'09
8:30 p.m.
Well, while I'm waiting for various things to arrive to aid my
resuscitation of my 11/40, I'm back to working on my IMSAI 8080.
The front panel does not work quite right with the combination of CPU
and RAM I have in the machine, so I've been debugging various things and
have made some decent progress. Now Examine and Examine Next work
properly. Deposit/Deposit Next, however, do not.
Reading through the CPA manual I got from
http://www.classiccmp.org/dunfield/imsai/cpa.pdf, there's a modification
that needs to be done to get the front panel to work with non-IMSAI RAM
cards -- this has not been done to my front panel.
Seems that that might be at least part of the problem. But step 3 (see
pg 26, for those following along at home) refers to Fig 2, referencing
points A & B. Figure 2 is not in the PDF. There is a schematic on page
28 outlining the change, but it's unreadable.
Anyone have a copy of Fig 2 they can share?
Thanks!
Josh
20 Apr
20 Apr
11:28 a.m.
Josh Dersch wrote:
[snip]
Figure 2 is not in the PDF. There is a schematic on page 28 outlining
the change, but it's unreadable.
Anyone have a copy of Fig 2 they can share?
I'm glad you mentioned this, I was looking thru my original manual and
didn't find these pages. Mine only has the one mod starting on pg.29.
I'll take a look around too and try to find this in other pdf's
=Dan
[ = http://www2.applegate.org/~ragooman/ ]
3:30 p.m.
I have two docs which show mods to the IMSAI front panel. One is in the
CPA section of the full manual
and the other came from the current IMSAI people. I put them up here:
http://www.dvq.com/docs/s100/
Get: IMSAI_8080_Manual.pdf and
cpa_changes.pdf
Hopefully, the info you need is in one.
Bob
Dan Roganti wrote:
Josh Dersch wrote:
[snip]
Figure 2 is not in the PDF. There is a schematic on page 28 outlining
the change, but it's unreadable.
Anyone have a copy of Fig 2 they can share?
I'm glad you mentioned this, I was looking thru my original manual and
didn't find these pages. Mine only has the one mod starting on pg.29.
I'll take a look around too and try to find this in other pdf's
=Dan
[ = http://www2.applegate.org/~ragooman/ ]
21 Apr
21 Apr
7:55 a.m.
Heh, the IMSAI_8080_Manual.pdf is still missing Fig 2. Maybe it never
existed in the first place :).
cpa_changes.pdf seems to be a compendium of the text part of the
original errata lists, but lacks any diagrams whatsoever. (It still
seems to reference the diagrams, though :)).
Thanks,
Josh
Bob Rosenbloom wrote:
I have two docs which show mods to the IMSAI front
panel. One is in
the CPA section of the full manual
and the other came from the current IMSAI people. I put them up here:
http://www.dvq.com/docs/s100/
Get: IMSAI_8080_Manual.pdf and
cpa_changes.pdf
Hopefully, the info you need is in one.
Bob
Dan Roganti wrote:
Josh Dersch wrote:
[snip]
Figure 2 is not in the PDF. There is a schematic on page 28
outlining the change, but it's unreadable.
Anyone have a copy of Fig 2 they can share?
I'm glad you mentioned this, I was looking thru my original manual
and didn't find these pages. Mine only has the one mod starting on
pg.29. I'll take a look around too and try to find this in other pdf's
=Dan
[ = http://www2.applegate.org/~ragooman/ ]
24 Apr
24 Apr
1:51 a.m.
Josh Dersch wrote:
Heh, the IMSAI_8080_Manual.pdf is still missing Fig 2.
Maybe it never
existed in the first place :).
cpa_changes.pdf seems to be a compendium of the text part of the
original errata lists, but lacks any diagrams whatsoever. (It still
seems to reference the diagrams, though :)).
I tracked down a copy of the diagram in Fig 2 that's missing. Bill
Degnan has the page and scanned this into a pdf on his website.
vintagecomputer.net/imsai/imsai_fig2.pdf
=Dan
[ = http://www2.applegate.org/~ragooman/ ]
4:22 a.m.
Dan Roganti wrote:
Josh Dersch wrote:
Awesome -- thanks for finding this. Makes things a lot more clear :).
Josh
Heh, the IMSAI_8080_Manual.pdf is still missing
Fig 2. Maybe it
never existed in the first place :).
cpa_changes.pdf seems to be a compendium of the text part of the
original errata lists, but lacks any diagrams whatsoever. (It still
seems to reference the diagrams, though :)).
I tracked down a copy of the diagram in Fig 2 that's missing. Bill
Degnan has the page and scanned this into a pdf on his website.
vintagecomputer.net/imsai/imsai_fig2.pdf
=Dan
[ = http://www2.applegate.org/~ragooman/ ]
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bobalan＠sbcglobal.net -
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ragooman＠comcast.net