Re: WTD: tandon 603s or 602s

From: B. Degnan (
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):

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.


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 
>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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