Re: Disk ][ Drives not working

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

"Jeff Blakeney" <CUTjblakeney@sympatico.ca> wrote in message
e29be0pko4gbla0cfln6q6ftfdc1ee7ik3@4ax.com">news:e29be0pko4gbla0cfln6q6ftfdc1ee7ik3@4ax.com...
: On Fri, 02 Jul 2004 15:51:50 GMT, "John B. Matthews"
: <nospam@nospam.com> wrote:
:
: >This is an excellent picture of a well-known way to fry the
: >analog card inside the drive. I seem to recall folks saying it
: >blew the "read sense amplifier" chip, luridly recounting how
it
: >would smoke and be visibly burned afterward. Is that the
: >"ULN2003" you mention?
:
: I once plugged a Disk ][ onto my controller card but I think I
had the
: pins off by one to the right or left, not missing an entire row
like
: Bill mentioned, and I literally blew a large hole out of the
top of a
: 74LS125 (I think that was the chip) in the Disk ][.  I was
unable to
: fix it myself (I did try) and paid to get it repaired at an
Apple
: dealer and within a week or two the drive motor died and the
dealer
: replaced the drive with no charge after that.
:
: I'm pretty sure the first repair was to simply replace the
analog card
: and the second was probably to replace most, if not all, of the
parts
: in the drive.  :-)

I have actually tried several times to plug it on that
way, one pin left or right, and it is very difficult.
The pins with no holes over them have solid material over
them. That actually bend the pins outward. I believe the
most common error is as I described with a whole row off.
Very easy to do and it really looks like it on correctly,
unless you are looking closely.

Has anyone ever tried to connect it with the cable on the
card side? Not an easy task either.  :o)

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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