Re: error 23 on lisa2/10

2006-02-08 Thread James MacPhail

when i boot up my lisa2/10 , i always get an error 23.(something with
floppy error?)

Check the floppy drive to see if it operates smoothly when a disk is
inserted and ejected. Many of these 400k floppy drives do not operate
properly due to sticky grease that must be cleaned off.

is there a place where i can download a complete lisaOS ( which lisaOS
works best on a lisa2/10?, i am unable to determine which OS is installed)

Which OS is best is a matter of personal preference.

There are internet sites with various Lisa OS versions, for example:

  http://www.whoopis.com/lisa/

  http://www.macmothership.com/lisacontent/lisahome.html

HTH,

James

James MacPhail   Think not of engineering as art,
[EMAIL PROTECTED] but of art as engineering
Sigma Seven Systems Ltd.
[EMAIL PROTECTED]http://SigmaSevenSystems.com



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Re: Networking a Lisa

2006-02-05 Thread James MacPhail

I have a hacked (not by me) localtalk connector

The lisa is running OS 6.0.8, and the Wallstreet is running 9.2.

when using the chooser I can see the Wallstreet, I can even attempt to
connect, and the Lisa displays a list of Wallstreet volumes.


I think this indicates you do have (more or less) appropriate software
installed and your hacked localtalk connector is working.


However, when I try to fully connect, nothing happens!!!

Trying the same thing on the Lisa under OS 7.0.1 causes the system to
crash with the error:

Sorry, a system error occurred. Chooser divide by zero


I have observed a similar issue with various computers running system
software pre MacOS 8, including a MacPlus, and IIsi.

I believe the reason is that Apple implemented a new User Authentication
Module around the time of Mac OS 8 to improve security, and for whatever
reason, it is not fully backwards-compatible (or perhaps you need to find
just the right version of the AppleShare Workstation Software).

Searching around on Apple's web site, I found various technotes including
this one:

  http://docs.info.apple.com/article.html?artnum=30497

Which says, in part:

Computers that are running system software earlier than system software
7.5.1 should run AppleShare Workstation 3.5. Computers that are running
system software 7.5.1 or later (up to but not including 7.5.3) should run
AppleShare Workstation 3.6.5.

Of course any particular version won't necessarily work on the Lisa, but it
gives you a limit as to how new a version is worth trying.

If you do find a particular combination of system software and AppleShare
software that does allow you to mount a MacOS 9 volume on your Lisa, please
let us know!

Suggestions:

I find that the newer system versions can mount volumes shared by the older
versions. ie. if you run System 7.x on your Lisa, and turn on file sharing,
you may be able to mount it on the Wallstreet.

Alternately, I use an older computer running System 7.5.5 as a file server.
I then mount a volume from this on both older and newer computers, and use
it to transfer files between them. Since I change configurations often, I
find the extra hop is less trouble than fiddling with file sharing in each
new configuration.

HTH,

James

James MacPhail   Think not of engineering as art,
[EMAIL PROTECTED] but of art as engineering
Sigma Seven Systems Ltd.
[EMAIL PROTECTED]http://SigmaSevenSystems.com



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Re: RAM mod question for James McPhail

2006-01-22 Thread James MacPhail

Ever since I read what you wrote about the 'LRamBo' 2 meg mod for the
apple lisa 512k card I've been intrigued, and the 4 meg mod for
Macworks Plus II.

Where would I find information on doing these mods? I've searched the
internet using google, and found nothing.

Hi Phil,

At the moment, I can't find a good site offering both of these either. It
appears that some of the more extensive Lisa information sites are offline,
or perhaps have been dropped from Google's index.

a) I did find the instruction sheet for the 2 MB mod in two places. Note
that the contact info on the sheet is out of date (phone number and
CompuServe address).

1. Go to this page and scroll the right hand list to ram512-1 through -3.

  http://lisa.sunder.net/cgi-bin/bookview2.cgi?zoom=0?image=0?book=6

2. This site does not include pages 1 and 2, which were reverse engineered
schematics of the 512K memory board. Since Apple schematics of the RAM
board are available online (at the same site, for instance), I don't think
this is a problem and page 3 is really all you need.

  http://www.freeinfosociety.com/electronics/schemview.php?id=1421

b) I am happy to email the 4 MB modification to those who ask, please let
me know if you would prefer the format to be: MacDraw (the original
document), generic PICT, or Acrobat PDF. To avoid annoying the other list
members, please send your email to me directly rather than replying to this
posting.

The 4 MB modification instructions do not include information for using the
Sun Remarketing memory board (which has SIMM sockets). I suspect that J1 on
that board is to support the 4 MB modification, but I have not tested it.

To be clear, the 4 MB modification only works with a few operating
environments, such as MacWorks Plus II. It also works with MacWorks Plus
1.1h, and if the memory is restricted to 3.875 MB, with MacWorks Plus
1.0.18.

HTH,

James

James MacPhail   Think not of engineering as art,
[EMAIL PROTECTED] but of art as engineering
Sigma Seven Systems Ltd.
[EMAIL PROTECTED]http://SigmaSevenSystems.com



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Re: Lisa 2: Bad Disk Drive

2005-11-20 Thread James MacPhail

*but* despite all my effort, the diske drive remain not functionnal. It
make some noise at startup, like if head are blocked... I will try
again to dismantle it and grease everywhere again... May be somebody
have a spare diske drive ? Or Macintosh drive may work ?

The 400K drive is the same as in the 128K and 512K Macintosh, so if you
have one of those (and it sounds like you do), you could connect it to see
if it works.

If not, then suspect the I/O board and connectors.

If another drive does work, then the original drive would seem to need
maintenance.

Other than the sticky grease problem, check to see if the pressure pad is
still on the drive. It is a small felt pad opposite the read/write head,
when a disk is inserted, it is the thing that holds the magnetic disk
against the head.

Sometimes the pressure pad falls off (or is torn off by forcibly ejecting a
disk when the grease is sticky).

Congratulations on fixing your off/on problem!

James

James MacPhail   Think not of engineering as art,
[EMAIL PROTECTED] but of art as engineering
Sigma Seven Systems Ltd.
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Lisa won't stay off (was Lisa 2: Bad Disk Drive)

2005-11-11 Thread James MacPhail

This was an aside to another problem, so it looks like it didn't get any
attention:

when I switch the Lisa off, it goes off then on immediately.

I have seen a couple of causes for this problem, ones that come to mind are:

1) Damaged (broken) traces on the I/O Board due to corrosion from leaking
batteries.

If your I/O Board once had batteries on it, check the continuity of the
traces in that area carefully.

If it still has batteries on it, you should probably remove them and clean
the circuit board in that area before battery leakage causes (more) damage.

The battery is not required for startup or operation of the Lisa; it is
only to keep the clock running and preserve some preference settings in
RAM. Unlike a modern computer whose clock can run from the battery for
years with no external power, the Lisa battery only lasts for a few hours
when external power is interrupted.

2) Bad COPS, or perhaps poor contact with its socket.

It may be enough to remove and re-insert the COPS to improve the connection.

If not, replace the COPS with one from another I/O board... if it still
doesn't work, then it probably isn't the COPS.

3) A couple of other parts on the I/O board can fail causing this sort of
problem, so if the above don't help, let us know and we can start
trouble-shooting.

Good luck!

James

James MacPhail   Think not of engineering as art,
[EMAIL PROTECTED] but of art as engineering
Sigma Seven Systems Ltd.
[EMAIL PROTECTED]http://SigmaSevenSystems.com



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Re: Dead I/O Board?

2005-06-08 Thread James MacPhail

Hi Clinton,

It may be enough to remove and replace the I/O board and card cage a few
times; this wipes the contacts so they make better contact.

If that doesn't work, try cleaning the gold card-edge connectors between
the CPU  I/O boards and the motherboard and between the motherboard and
the chassis.

If alcohol and a soft cloth are not sufficient to get them clean, you can
use a soft pencil eraser, but proceed gently or the gold will be erased.

Also check the card-edge sockets for bent contacts, dust, corrosion, etc.

If that doesn't do the trick, let us know.

Good luck!

James

I/O board error 52. I read that re-seating the I/O board
could help but I tried that and no luck.



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Schematics for Lisa 1.8 Amp DataPower power supply

2005-01-22 Thread James MacPhail

Schematics are now available for the Lisa DataPower power supply.

This is the power supply with part no. 699-0189, rated 120 VAC, 60 Hz, 1.8
Amp, 150 W on the label beside the power cord connector.

Units intended for use outside of North America are labelled part no.
699-0190, and 220-240 V~, 50 Hz, 1 A, 150 W (same power supply, different
internal jumper configuration).

This power supply was original equipment in the Lisa 2/10 and Macintosh XL
with internal widget hard drive, and is commonly used as an upgrade from
the earlier 1.2 Amp power supply in other Lisas.

Due to the time invested and reproduction costs, there is a nominal charge
for copies.

For current pricing and ordering information, please contact John Woodall:

  [EMAIL PROTECTED]
  mailto:[EMAIL PROTECTED]

I hope these prove useful to those working to keep Lisas running!

James

James MacPhail   Think not of engineering as art,
[EMAIL PROTECTED] but of art as engineering
Sigma Seven Systems Ltd.
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Re: Widget Startup Error 81

2004-12-21 Thread James MacPhail

Hi Guido,

Error 81 is not specific to the brake, other things can cause it.

Does the drive ever spin-up?

If not: after the brake is released, try to flip the flywheel with the
eraser end of a pencil... sometimes this is enough to make it run. I think
you spin the front edge from right to left (counter-clockwise when viewed
from the bottom).

If the spindle won't spin-up without the flip, try adjusting the brake; but
I expect the motor (or the motor driver board) has a problem. I don't know
of a fix for this or what the problem is; let us know if you find out!

Good luck!

James

brake of the Widget in one on my Lisa makes a distinct clunk. With the
Widget turned on the bottom I can see that the electric brake is relased
and that the motor step try to spin moving in both the senses for 2 or 3
seconds.
After that Lisa show an Error 81.
My infos report a problem with the electric brake that, normally, need a
re-adjust at 0,20 dec.
But the brake is not freezed.
The question: do you think this error (81) may be associated to a different
problem or it's only associated to the solenoid re-adjustment  and I can
try to do it even the brake is not freezed ?

James MacPhail   Think not of engineering as art,
[EMAIL PROTECTED] but of art as engineering
Sigma Seven Systems Ltd.
[EMAIL PROTECTED]http://SigmaSevenSystems.com



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Re: floppy head monitor runs continously .. anyone got a spare?

2003-10-16 Thread James MacPhail

Hi Tom,

 I wonder, could I just use my SE's floppy in the Lisa?

Yes you can, BUT  You have to do some soldering work
with the 1,44 super-drive

Interesting!

Please post your instructions so we can all have them (unless they are very
long or need pictures).

With this modification:

- does this drive then work with the Lisa OS?
- can one then use HD floppies reliably (although at 800k)?
- is any specific I/O board ROM required?

Cheers!

James

James MacPhail   Think not of engineering as art,
[EMAIL PROTECTED] but of art as engineering
Sigma Seven Systems Ltd.
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Re: Lisa 2/5 rejuvenation

2003-07-23 Thread James MacPhail

Hey Phil,

I'm trying to bring two Lisa 2/5s back to life.

How are you making out on this project?

Any advice to pass on to the rest of us?

Are there any chips I should consider swapping?

The COPS chip on the I/O board is involved in controlling the power.

HTH,

James

James MacPhail   Think not of engineering as art,
[EMAIL PROTECTED] but of art as engineering
Sigma Seven Systems Ltd.
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Re: Help with dead lisa 2 getting closer!

2001-10-11 Thread James MacPhail


Q: Would others prefer this to be off-list, or should it remain on-list?

Hi Vince,

The board I have is a XL board I believe because the board # is 620-142
which according to sun remarketing manual says its an XL board.  But that
manual says it will work in my Lisa 2/10.  There is no battery pack on this
board.  I'm gonna check the other suggestion now on the board to try and get
it to fire up.

I was under the impression that you had a Lisa 2, not a Lisa 2/10, but it
may not matter...

The Lisa 2 has an external parallel port connector (near the serial ports
on the back), the Lisa 2/10 does not. The Lisa 2/10 has an interrupt
button, the Lisa 2 does not. Others may have different definitions of
course.

Various re-configurations and name changes confuse the issue of what is
each kind of Lisa, however the prescence or abscence of a parallel port on
the back panel of the motherboard is a reliable indicator.

The Lisa 2 usually has the 1.2 Amp power supply, the 2/10 usually has the
1.8 Amp power supply, although both work in both machines, the extra power
requirements of the 2/10 pretty much require the stronger power supply.
(These nameplate ratings are for the 120 volt version, the 240 volt
versions have different nameplate current ratings).

As for I/O boards, I believe they are NOT completely interchangable,
perhaps someone else can comment on this. If you have a back panel parallel
port, your I/O board should be 620-0117 (with the battery  switch, battery
perhaps removed). If you do not have a back panel parallel port, your I/O
board should be 620-142 (no battery).

Just to verify, U7F a 7417.  No jumper wire where you where describing, but
I may have a different board than what you thought.  Jumping pin 12 to 14
causing pin 12 to go high doesnt fire it up.

U7F is a 7417 on both I/O boards. The flying wire is only present on 620-0117.

It is possible I have the sense of the pin 12 voltage backwards. If it is
5V when the Lisa is off, try pulling it to ground to see if the power
supply starts up.

Ok, I checked U7F pin 12 and it does go to pin 120 on the edge connector.

You could check that that pin goes through the motherboard and chassis to
the power supply's edge connector, sorry I don't know what pin off-hand.

Is there any way to check votages out of the power supply connector to
verify it is the power supply?

Since you have already confirmed the 5V standby power is working, there is
no simple test. This is a problem with switching power supplies. Swapping
power supplies would be the easiest thing, but not everyone has a garage
full of Lisas (neither do I).

HTH,

James

James MacPhail   Think not of engineering as art,
[EMAIL PROTECTED] but of art as engineering
Sigma Seven Systems Ltd.
[EMAIL PROTECTED]http://SigmaSevenSystems.com



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