A hard drive problem

[casa@unm.edu (Jim Pittman)]

I have a hard drive problem.

In 1993 I bought an A-Hive drive from Tulin. It came partitioned with
System 6.0.1 installed and I hooked it to a RamFAST in my Apple IIgs
and it worked fine. (I thought it made a little more fan noise than
it should have, but I could live with that.)

Earlier this year I obtained a different hard drive that was quieter
so I thought I'd replace the Tulin drive. When I removed the Tulin
drive and put it on the shelf it seemed pretty dusty, so I thought
I'd need to clean it someday.

Last week I thought I'd use the Tulin drive with another IIgs and I
thought I'd clean out the dust first. Having never seen the insides
of a hard drive case, I opened it up. There were two wires, a red and
a black, going from the power supply to the LED in the top part of
the case, and a blue wire going from the power supply to somewhere
underneath the front end (the end away from the two SCSI connectors)
of the Quantum hard drive. So I couldn't move the top cover very far
from the drive because of these three wires.

Well, in cleaning out the dust the blue wire came loose! I took out
four screws holding the drive to the chassis so I could look to see
where the wire had been connected. The only places I could see that
could possibly accommodate the tiny female connector on the end of
the blue wire were pins on two tiny connectors at the end of the
Quantum motherboard. One connector had two pins, the other had five.
There were no meaningful identifying markings on the connectors that
I could see; it said something like "J5" and "J12" or whatever.

Now what? 1) try the hard drive with the blue wire loose? 2) try
the drive with the wire attached to one of these pins? If so,
which pin? 3) Look for another possible place the wire could have
been attached? I simply can not find any other place.

The red, black and blue wires come off the power supply board at
the same place and the board says "LED" near where the wires are.
Is the blue wire an "extra" that would connect to a second LED if
one were installed? (The Tulin drive had only one LED, not two.)
If so, it may not need to be hooked up for the drive to work.

Thanks for any useful information, including the function of that
blue wire.

- Jim Pittman - AppleQuerque Computer Club - casa@unm.edu