I have the service manual here. http://rapidshare.com/files/134427222/KM5656.pdf.html
click free user then download. This is the complete service manual all my techs have..This is killer and will help you with all your needs.
just click accept and it is yours... :)
http://rapidshare.com/files/134442262/KM443.pdf.html <---tech Manual
http://rapidshare.com/files/134442349/WD_KM443.pdf.html <---wiring diagram