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Old 04-07-2010, 13:09   #1
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Troubleshooting Heading Sensor

Any of you guys have any hints for troubleshooting a heading sensor on a Raymarine Pathfinder system? The system consists of RL80CRCplus and RL70CRCplus plotter/radar displays and the usual GPS and other paraphernalia including fluxgate compass and rate gyro. The autopilot is a 6001+.

The symptoms are: Heading erratically varies wildly from reality, up to 180 degrees, then sometimes shows correct heading. The autopilot functions flawlessly. MARPA doesn't work.

I've checked connections, but I don't think I've found all of them

Do they just go bad? Do they sometimes require calibration? Is there are decent procedure for diagnosing them? The manual is unhelpful. Thanks in advance.
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