Re: Disk ][ Drives not working

["Bill Garber" <willy46pa@comcast DOT net>]

"Igor" <ikanja@despam....com> wrote in message
xn0dkap771j071001@powernews.libero.it">news:xn0dkap771j071001@powernews.libero.it...
: Don Bruder wrote:
:
: > Bingo... There's a very likely explanation for your trouble.
: >
: > Betcha your drives and controllers are just fine. You problem
is the
: > disks. Disk II's are known for not putting out enough
electromagnetic
: > "oomph" to properly write on DD disks, which didn't exist
back when
: > those drives were designed, and require more power being
applied to
: > them to write a bit than the same bit that's destined for a
: > single-density disk - The end result is like trying to write
on a
: > tyvek disk envelpe with a pencil - it "just doesn't take".
:
: I don't have much knowledge about this, but I'm still using DD
disks
: with my diskII and I've never had problems...
: Also, I suppose that many of the disks he has received are
probably
: been made using a diskII....

I too use DD disks in Disk II drives, no problem.
Recently I had plugged a Disk II onto the card in the
machine and got the first row of holes of the plug on
the second row of pins as such:

  |===================|  Card edge
  |o o o o o o o o o o|  Row of pins
  |HHHHHHHHHHHHHHHHHHH|  Plug on Pins
  |HHHHHHHHHHHHHHHHHHH|  Plug not on pins

After doing so and powering up and down again
my Disk II responded as does the drive that is
being described in this thread. It will seek
track zero, but do no more. I suspect that the
IC "ULN2003" is the culprit. I haven't had the
opportunity to mess with it yet, but when I do
I will post my results.

Bill @ GarberStreet Enterprizez };-)
Web Site - http://garberstreet.netfirms.com
Email - willy46pa @ comcast DOT net
Change DOT to a dot to contact me



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