Re: Question on the "formatter" Z chip

Thanks James,

It seems then that I don't have the necessary z chip plus piggy back ROM to accomplish this after all. I imagine they are as rare as hen's teeth. Oh well.... I guess the Profile will just stay as a cosmetic decoration to my Lisa 2/5. I've got the X/Profile CF card solution in my Lisa 2/10/Mac XL computer so at least one unit can show off the Lisa suite to interested parties

Tez
On 12/04/2016 5:58 am, "James MacPhail" <gg__at_email.domain.hidden> wrote:

No, you can't take the Z8603 + its piggyback EPROM from the Widget and use it to LLF a ProFile.

To Low Level Format the 10MB ProFile, you need the "4K" Z8613 (along with the specific 10MB LLF EPROM).

To Low Level Format the 5MB ProFile, you need the "2K" Z8603 (along with the specific 5MB LLF EPROM). In theory, a "4K" Z8613 could also be used, but I believe this would require some changes to the EPROM.

Some Widgets have a Z8603 with piggyback EPROM installed, and those can be used for the 5MB LLF, so long as you change the EPROM to the ProFile LLF EPROM. Other Widgets have a Z8 without the piggyback EPROM socket -- these can't be used except in a Widget.

Widgets have their own LLF built-in without part changes.

Of course you also need the host and software to issue the LLF commands, such as the Apple /// with Apple's LLF software or Lisa with BLU.

Good luck!

James

I want to low-level format the Profile 10MB drive with BLU.
> NeXT suggested the one in my (also non-working) 10MB Widget drive.
>
> 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?
>

-- 
-- 
-----
You received this message because you are a member of the LisaList group.
The group FAQ is at http://lowendmac.com/lists/lisa.html
To post to this group, send email to lisalist_at_email.domain.hidden
To leave this group, send email to lisalist+unsubscribe_at_email.domain.hidden
For more options, visit this group at
http://groups.google.com/group/lisalist
--- You received this message because you are subscribed to the Google
Groups "LisaList" group.
To unsubscribe from this group and stop receiving emails from it, send an
email to lisalist+unsubscribe_at_googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

-- 
-- 
-----
You received this message because you are a member of the LisaList group.
The group FAQ is at http://lowendmac.com/lists/lisa.html
To post to this group, send email to lisalist_at_email.domain.hidden
To leave this group, send email to lisalist+unsubscribe_at_email.domain.hidden
For more options, visit this group at http://groups.google.com/group/lisalist
--- 
You received this message because you are subscribed to the Google Groups "LisaList" group.
To unsubscribe from this group and stop receiving emails from it, send an email to lisalist+unsubscribe_at_googlegroups.com.
For more options, visit https://groups.google.com/d/optout.



text/html attachment: alternate version of message