Super HD Radar acting weird

[Chuck - Raymarine - Moderator]

Jack,

Unfortunately, Raymarine does not have detailed instructions for removing a radar pedestal's T/R core circuitry module. However, it is quite simple to do so:
1) switch the breaker supplying power to the pedestal core OFF
2) switch the antenna rotation switch located on the exterior of the pedestal to the OFF position
3) loosen the three captured bolts securing the pedestal's upper case to the lower case.
4) tilt the upper case upward to approximately 90 degrees
5) unplug the cables connecting the pedestal electronics from the pedestal's T/R core circuitry module
6) remove the for cap screws securing the pedestal's T/R core circuitry module

The following is an image of a similar pedestal T/R core circuitry module: