Raymarine Compass GPS Receiver User Manual


 
Chapter 5: Fault Isolation & Maintenance
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Chapter 5: Fault Isolation & Maintenance
5.1 Fault Isolation
In the unlikely event that a fault occurs with your ST30 Compass, the
following table should help you identify the most likely cause and provides
the action required to correct a fault.
Fault Cause Action
Compass display is
blank.
No power supply Check the cables are
plugged in and are
secure.
Check the fuse/circuit
breaker.
Displayed heading is
different from the
ships compass.
Deviation present.
Ships compass is
incorrect.
The ST30 Compass
has not been aligned
to a known transit
bearing.
Carry out the compass
linearisation
procedure.
If your boat has dual
steering compass
stations, make sure
that both compasses
are displaying the
same heading. If they
are not you should
swing the ships
compass.
Perform the heading
alignment procedure
described in the
calibration chapter.
No exchange of
heading information
between SeaTalk
instruments.
SeaTalk cabling
problem.
Make sure that the
SeaTalk cables are
plugged in correctly.