Schematic for an Autohelm 4000

[jeepbluetj]

Anybody have a schematic for an Autohelm 4000? Not the ST 4000, the old one in the black box.

Somewhere the fluxgate has stopped working and it'd save me hours of tracing through the circuit if I had a schematic. It'll respond to the 10 degree turn request, just doesn't have any heading information at all (i.e. can turn the autopilot box but that doesn't try to turn the boat).