On 04/20/2011 08:08 AM, marco oriani wrote:
On 2011-04-20 13:39:55 +0200, Steven Hirsch said:On 04/20/2011 06:40 AM, marco oriani wrote:Are there any experts or owners of the profile HD system by Apple around here?I don't know if I'd call myself an expert, but I have a couple of them in both functional and doorstop variety. What information are you after?how do you place as a doorstop? have you build custom rubber feets? :) well I have an I/O error on it during high-level formatting. Is there any repair guide available of some sort? I got the user manual but it doesn't help me, it says that nothing should go wrong....
There is a (rather large) scan of the Apple ProFile technical manual floating around. Way too big for an attachment, but if you have an ftp or web site that can tolerate a 43MB upload I'll be glad to send it.
The stepper motor indexing tends to wander over the years and a low-level format will often fix the issue. That's the good news. The bad news is that low-level formatting requires an Apple III with ProFile interface and a special version of the Z8 MPU on the ProFile internal controller board. Just went through this while restoring a Lisa 2/5.
It's a 10 MB version running on an apple II, with prodos 1.1. I don't have the original floppy disks.
Did it ever work properly on that machine? Is it possible that you have an interface card with the 5MB ROM on it? One not so robust way to tell is by looking for the apple copyright notice in the expansion rom. The 5M has a copyright date of 1982 and the 10M is 1984. That's based on my images and other dates could have been used.
I have an Apple part number for the 5M ROM of 341-0080-B. But again, 5M ROMs may exist with other numbers.
Steve