Furuno 1823C manual Plotter troubleshooting

7. MAINTENANCE, TROUBLESHOOTING

7.7.3Plotter

Requires GPS Receiver GP-310B.

	Plotter troubleshooting
If…	Then…
position is not fixed	• check that antenna connector is firmly fastened.
within three minutes	• check number of satellites received, on the GPS status display. (See
	page 7-11.) There should be three or more.
position is wrong	• check that the correct geodetic chart system is selected, on the GPS
	SENSOR SETTINGS menu.
	• enter position offset, on the GPS SENSOR SETTINGS menu.
the track is not plotted	• track is not being plotted. (“H” icon appears at the top of the display.)
	Press the TRACK HALT soft key on the TRACKS & MARKS
	CONTROL menu to start plotting again.
the bearing is wrong	• check that correct magnetic variation is entered, on the GENERAL
	SETUP menu.
Loran C (or Decca)	• check that LORAN C (or DECCA) is selected at TD DISPLAY on the
TDs do not appear	GENERAL SETUP menu. Also, check that proper Loran C (Decca)
	chains codes are entered, on the TD SETUP menu.
Loran C (or Decca)	• enter TD offset, on the TD SETUP menu.
TDs are wrong
the ship’s speed	• try to decrease speed/course smoothing, on the GPS SENSOR
indication is not zero	SETTINGS menu.
after the ship is
stopped

7-5