ComNav Marine 1420 Autopilot System
HEAD INDICATION PROBLEM & HOW TO FIX
The Autopilot will not switch to
Nav function.
The Autopilot is not receiving any useful navigation data
from the navigation device.
CHECK:
• That the navigation device is turned on.
• That you have entered a destination or waypoint
into the navigation device.
• That your wiring is correct at the Processor and at
the back of the navigation device.
• That your navigation device indicates it is
receiving accurate navigation signals.
• That your navigation device is sending out
information in the NMEA 0183 format.
The Autopilot has switched out
of Nav function and back to Pilot
function.
The navigation device has stopped sending information to
the Autopilot. The Autopilot has returned to steering by the
compass only.
CHECK:
• That the navigation device is turned on.
• That you have entered a destination or waypoint
into the navigation device.
• That your wiring is correct at the Processor and at
the back of the navigation device.
• That your navigation device is receiving accurate
navigation signals.
Document PN 29010012 V1.3
57
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