Power supply for Quality Computers 40 meg Q dive?

[Jack Countryman <jcountry@mac.com>]

I have a Quality Computers 40 meg external Q drive here, off a friend's
IIGS.  It had stopped working, and doesn't seem to spin up.  I suspect
the power brick to be dead.  To test that, I'd try using an external
power supply to power the drive...if I knew what voltage to hook to each
of the three connectors inside the case.  They are not marked, and since
there is no power there, I have no way of telling what voltage goes
where to feed power across the pc board to the notebook size drive
used.  Ideas, anyone?

jcountry@mac.com