Hi,
I have a Lisa 2/5 and a 2/10 (XL).
I have successfully installed an XL I/O board in my Lisa 2/5 ( with the old
battery backed-up I/O board). there are no big differences between the I/O
boards- however, I have used a different 800KB  ROM for the XL I/O board.
The XL I/O card fits in a 2/5, but the old I/O card won't work in a Lisa
2/10 (XL).
The Lisa 2/10 runs Lisa OS and MacWorks, the Mac XL doesn't, because there
is a screen kit installed ( to change the rectangular pixels into square
pixels, as used on the Macintosh). The screen kit includes a new Video state
Prom which makes it impossible to run Lisa OS (invalid Lisa serial number
for Lisa OS) - you have to uninstall the screen kit, the Video state Prom
and the Monitor EPROM's as well.
Then you have changed your XL into a "downgraded" Lisa 2/10.

The card cage of the Lisa 2/5 doesn't fit into a Lisa 2/10 (or XL) because
the form factor is slightly different- slightly modified main connectors for
the widget.

I hope these informations are useful...

BTW: You can install a battery backup in a XL I/O board- the modifications
are very easy to handle. But I wouldn't recommend it, because the batteries
will do the same bad corrosion as found in many 2/5 I/O board.


Helmut


on 25.08.2005 17:51 Uhr, Philip Lord at [EMAIL PROTECTED] wrote:

> I read in the Sun Remarketing 'do it yourself guide' that Lisa I/O
> cards will not work in a XL. My question is, what is it about an XL
> that makes it an XL, and what is it about a Lisa that makes it a
> lisa? is it the Motherboard?
> 
> For example: if I had a lisa 2 upgraded to a XL (new roms for 800k
> floppy, and widget drive) that has a dead original lisa 2 motherboard
> (parallel port version), and I'm replacing the dead motherboard and
> card cage with a motherboard and card cage from an XL (no Parallel
> port version), will the original lisa I/O card still work or do I
> have to change that too?
> 
> Thanks in advance.
> 
> Phil
> 
> 


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