Re: Failed 5.25" Disk Drives

["steve" <stevegp32@NOSPAMyahoo.com>]

Probably a bad analog board.  I know that is the problem with one of my 5.25
disk drives.

Steve


"Terry Olsen" <tolsen64@hotmail.com> wrote in message
vojloamp59tj9a@corp.supernews.com">news:vojloamp59tj9a@corp.supernews.com...
> I had a guy come over to my house to buy a 5.25" disk drive because his
> weren't working.  Scenario went something like this...
>
> 1. He brought his IIe system & disk drives.  Hooked it up, turned it on.
> Drives light up, spin, but don't boot or read.  No head movement or
standard
> "machine gun" booting sound.  Tried both his drives daisy-chained, reverse
> daisy-chained, and each individually.
>
> 2. Hooked one of my drives up by itself. Booted fine, read/write fine.
>
> 3. Wanted to try his drives.  Daisy-chained one of his drives off of mine,
> turned computer on, nothing.  My drive now acting like his.  Unhooked his
> drive, tried mine alone and it is now toast.
>
> 4. Grabbed another drive from my stock, hooked it up by itself, works
fine.
> Daisy-chained my newly "toasted" drive and tried it again, toasted another
> drive. Now I have 2 bad drives.
>
> 5. Grabbed 2 more drives from my stock, plugged them in, they work fine.
> Sold him the two working drives (didn't charge him for the drives we
toasted
> while troubleshooting).  Told him to mark them as bad so he wouldn't hook
> them up.  Sent him home
>
> Now...I have 2 toasted drives.  What in the world can blow a drive up in
> such a way that the newly toasted drive will become the bomb that toasts
> other drives?  What do I do with the drives now?  Can they be fixed?  Do I
> throw them away?  Any advice?
>
> Thanks!
> Terry
>
>