Re: Widget Startup Error 81

[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]



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Widget Startup Error 81

[Guido Deiana]

Hello Thomas and List,
I need some help from your experience with the Widget hard drives.
On startup, immediately after completion of the module tests, the electric 
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 ?
Thanks in advance.

Guido Deiana
Padova, Italy
At 11.49 21/12/2004 +0100, you wrote:
Hi,
you can format your drive.
Just take a short look at some articels in the LisaList approx 4 weeks ago,
concerning the identical problem with formatting a Lisa widget drive.
BUT as a lot of vintage winchester disk drives become weak as times goes by,
you cannot be shure, that this formatting will solve the problem generally.
>
> I don't have a Macintosh, but do have access to a program called Mac-in-DOS
> that I think I could use to format floppies and get the software copied 
over
> to them.
You will not have a chance to do the copying by that way. It's very likely,
that your IBM Computer does not support the format, cause it's built in
floppy drive cannot format the floppies with the appropriate sector- and
track density AND I think the software you intend to use could be a little
too errorful for this job :-)

It's recommanded to buy an old MacIntosh SE or Plus (which cost less than
you might think) and then copy the disk-images you downloaded from the web
with DiskCopy to some low density 3,5" Disks.
This can be done with Macs, with a build-in 800k Floppy-Drive or a so called
1,44 MB Super-Drive if you use DiskCopy and are able to run with OS 6 up to
OS 7.5.3
Do not buy a "new" Mac for this job - although you can do so, cause it's
better to use a Mac than everything else on this planet :-)
... cause the newer Macs don't support low-level formatting and this is
exactly, what the Lisa Disks are. There is neither a chance to simply copy
the software on a DD formatted DOS, neither a DD formatet HFS Mac Floppy
Disk. Lisa uses "a special formatting" to describe it simply now.
greetings TOM from Bavaria, the country of the snowy alps and the marvellous
castles of Koenig Ludwig - and of course the original Octoberfest
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