Hey Neptune, nice looking chinook!
Im a new owner of a chinook aswell and have spent some time trying to do some research on it. I managed to track down a link to the scans of the actual owners manual!!! I found it searching thru the yahoo group.
I would like to thanks whomever is hosting this and did the scans, Big-UP Yourself!!!
The electrical schematics are at the end.
Hope this helps and good luck!
http://brochures.slosh.com/frame.shtml?chalet/chinook