Try asking over at rec.video.production, there are alot of pros there
that might know that one.
I'm assuming you don't actually have the cable?
If you can get your hands on a cable and power supply you can reverse
check it.( testing each set of pins on the camera end of the cable
until you find the hot and ground.)
How many pins is the connector on the camera? (10pin , 12 pin etc..)
Give me that and I'll go through my books and see if I can cross it.
If you are adept at repair work you could open up the back case and
check the leads off the connector. They should be color coded, hot
will be red and ground is usually black.
Just visually look for one going to the near edge of the board, this
will usually be the ground, sometines the hot.(there should be a + or
- on the board to indicate which.) just trace down each to get your
power connections.