Re: Question on the "formatter" Z chip -- Apple ProFile harddrive

Hello Terry,

Try the following FTP site for lots of Apple ProFile harddrive docs including formatting information.

ftp://ftp.apple.asimov.net/pub/apple_II/site_index.txt

Regards,
David Craig

===

> On April 11, 2016, at 3:40 AM, Terry Stewart <terry_at_email.domain.hidden> wrote:
>
> Hi everyone,
>
> After a few years hiatus, I'm thinking I might have another crack at getting my 10MB Profile up and running. It seems a shame to have a working Lisa 2 without the thing that made it somewhat useful.
>
> I want to low-level format the Profile 10MB drive with BLU. From memory (and from reading old postings) it seems I need the "formatter" EPROM on top of a Z chip. NeXT suggested the one in my (also non-working) 10MB Widget drive. It's there, but after I noted it I got busy and that's where I left the project.
>
> The question is (assuming the EPROM is still viable), can I just drop this Z-chip with it's piggy-backed EPROM into the Z-chip socket on my 10MB Profile and expect it to work? Does anyone know?
>
> To assist I've uploaded two images. The image under the first link shows the Z-chip on the widget. The second image shows the equivalent Z-chip on the Profile 10MB board. The numbers are different. Would they be compatible though..or not?
>
> http://www.classic-computers.org.nz/blog/images/2016-04-11-Z-chip-on-widget.jpg
> http://www.classic-computers.org.nz/blog/images/2016-04-11-Z-chip-on-10MB-profile.jpg
>
> Any comments most welcome. I don't want to blow anything up!
>
> Terry (Tezza)

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