Re: low dollar unidisk repair

[musjndx@gsusgi2.gsu.edu (Jonathan N. Deitch)]

shack@crash.cts.com (Randy Shackelford) writes:

>I have a malfunctioning unidisk 3.5 in my closet. I keep seeing people wanting
>to sell leftover 800K floppy mechanisms really cheap in the Mac groups. I'd
>like to know if I could get one of those and swap the guts of my unidisk and
>fix it. For that matter would it work with grey 3.5 drives too?

If your unidisk is not working, make sure the drive mech is dead before
you replace it.  Unhook the daughter board and plug the 20-pin cable
directly into the drive.  Then test on a Macintosh.  Or take the mech out
and test on a macintosh.

If the mech works, you've got dead daughter board.  Safest thing to do then
is take the RF shield off and replcae the 65C02.  They do tend to go bad.

Don't forget to replace the RF shield when you put it all back together !

- Jonathan
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