From: B. Degnan (billdeg_at_degnanco.com)
Date: 2006-07-01 20:26:32
I have tried a number of things, including what's described at the bottom
of this web page (taping a pin):
http://nemesis.lonestar.org/computers/tandy/hardware/storage/mfm.html
As far as 225's go, so far I have not had any luck. It may simply be that
I have had bad 225's. I have also tried other similar drives. There are a
lot of messageboard/usergroup posts about substituting the Tandon drive on
the D9090.
In short I thought that if anyone had an actual Tandon 603s or 602s it
might be this group, does not hurt to keep trying! I have pretty high
confidence that the controller and power supply are OK, all the diagnostics
I can perform indicate that these components are healthy. The 603s that I
do have almost works...The drive actually gets a few clicks into the
formatting before getting a drive error.
Theoretically you do not have to do anything to the drive if you swap a
603s for a 602s. If you use a 602s, you in effect convert a d9090 into a
d9060, and the capacity is reduced to 5MB.
Thank you for your replies.
Bill
At 05:41 PM 7/1/2006 +0200, you wrote:
>Andre Fachat wrote:
>
>>I recently got a 9090, according to the source with a substituted disk
>>(225 I think - I didn't have a look into it so far, waiting for the
>>holidays...)
>
>Yes, that was what it said when I opened it to look closer. I found the
>hard disk was much slimmer than the 602S disks, which got me curious.
>Also, I found the total capacity of the drive was more like 5 than 7.5 MB.
>
>No idea what kind of jumpering had been made to convert a 9090 to a
>9060 wannabee, but I'm sure other list members with more experience in
>these matters could point to a document for Bill to follow if he wants
>to fit a 225 into the hard disk.
>
>--
>Anders Carlsson
>
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