Troubleshooting - Furuno SC-50S Operator's Manual

3. MAINTENANCE, TROUBLESHOOTING
3.2

Troubleshooting

This section provides basic troubleshooting procedures which the user may
follow to restore normal operation.
Symptom
Cannot turn on the power.
Heading indication
changes randomly when
ship is at anchor or does
not change when ship
moves.
Heading output from
SC-50S does not appear
on external equipment.
If large heading error occurs or heading indication is frequently interrupted,
contact your dealer for advice.
3-2
Troubleshooting
Cause
Power cable on the
processor unit
Power supply failure
Blown fuse
Sensor trouble
Connection between
SC-50S and external
equipment has loosened.
Sensor trouble
Remedy
Firmly connect the power
cable
Check the power supply.
Have a qualified
technician check the fuse.
Run the diagnostic test2 to
determine cause.
Firmly fasten the
connector.
Run the diagnostic test1 to
determine the cause.