Raytheon R 40X radar fault

[nimbusgb]

Trying to revive one of these units. Does anyone have the original manuals? Is there a separate power feed to the head unit or a cable split like the more modern raymarine units?? I am getting a 'bearing pulse error' which probably means that something is not connected to the aerial unit!

Found a very old manual - even has the circuit diagrams! Looks like an Aerial fault.

 

[pvb]

You can download the manual here - it even has circuit diagrams! Oh, how manuals used to be...

 

[billcowan]

40X, , I had a 20x yes good manual, but so old it was written sanskrit