Raytheon ST6000 Plus - The Autopilot will Not “Talk” to Other Seatalk Instruments; Position Information Not Received; The Autopilot will Not Auto Advance to the Next Waypoint; A Series of Rotating Dashes Are Displayed on Screen

72 ST6000 Plus Autopilot Control Unit Owner,s Handbook
The autopilot will not “talk” to other SeaTalk instruments
 Cabling problem  make sure all the cables are connected properly.
Position information not received
 Navigator not transmitting the correct position data.
The autopilot will not auto advance to the next waypoint
 No bearing to waypoint information received from the navigator.
A series of rotating dashes are displayed on screen
 Compass deviation correction or dockside rudder calibration is
running.
The display shows a series of stationary dashes
 Data is not being received  check the cabling.
The display shows NO DATA
 The signals received from the navigator are too weak  refer to the
navigator handbook for further action.