Compaq Armada 7400 Power Pin-out

Hi All,
I am trying to repair a Compaq Armada 7400 I have been given, unfortunately
I don't have an AC Adaptor for this machine - Does anyone please have the
pin out details for the PSU connector. I believe that one pin is ground two
others are actual DC supply voltages and the 4th pin is a logic signal level
(but I don't know in which direction, to the PSU or from it?) - I need to
know what the voltages are and which pin is which - Can anyone please help.
I don't want to buy a PSU until I can establish whether the machine is
salvageable or not.
Thankyou