Re: 800k vs 1.44k floppy drives

["william strutts" <wrstrutts1@nospam.home.com>]

"Mark Cummings" <NOTfigjams@primus.com.au> wrote in message
3bb85153@news.iprimus.com.au">news:3bb85153@news.iprimus.com.au...
>
> Hey William,
>
> I have studied this problem extensively with my own Apple II system(s) and
> come to the conclusion that the daisychain board is faulty in the 2nd 3.5"
> drive.
> To prove it (sort of) you can remove the 2nd 3.5" drive and then put your
> two 5.25" drives onto your first 3.5" drive. If they both work then try
> swapping out the 3.5" drive with the faulty one, and you will see that the
> second 5.25" drive stops working.

I thought about that last night. I experimented with it and found that
my second 3.5" was indeed bad.

> I have two out of five 3.5" drives that exhibit this fault. I went as far
as
> swapping out the daisychain board to find the fault. Alas there is no cure
> for this daisychain board as they are only found in 800K Apple 3.5"
drives.
> I suspect the LSI chip on it is faulty as there are very few other parts.
If
> the drive mechanism itself was faulty then it's an easy fix by putting in
a
> 1.4M auto inject drive mechanism from a old Mac which are plentiful and
> cheap.

No known cure eh?

> A work around is to get a 5.25" controller into slot 6 to run the two
5.25"
> drives and run the two 3.5" drives in the smartport. This way you can run
> your 4 drives with no obvious differences except under the IIGS hood. :)
>
> Mark
>
I have a one of those old controllers in my Platinum IIe along with a
Liron card.  I also have a Disk II controller.
--
--
William R. Strutts - wrstrutts1@nospam.home.com - Whatever!

C'est moi!  http://www.facelink.com/wrstrutts

Just hacking away...

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