Furuno GD-3300, GP-3300 manual 12-11

If...	Then...
Plotter Section (GD-3300/GP-3300)
track is not displayed	• the menu item TRACK (HOLD PLOT) on the INITIAL
	SETTINGS menu is set for OFF. (no track display
	during no recording of track)
you cannot enter marks or lines	• the mark memory is full. Press [MENU], [7] and [3] to
	check number of mark points used.
you cannot erase a mark	• two or more marks mey share the same position.
	Press [CLR] several times to delete.
you cannot erase the flag mark on a route	• the point is currently selected as a destination waypoint.
	• it is part of a registered route.
you have selected a route for navigation	• a route waypoint which is within the arrival alarm
but route waypoints are not connected	range is selected.
	• ROUTE LINE on SPECIAL menu (MENU 96) is set
	for OFF.
estimated time of arrival is wrong	• clock setting is wrong. Press [MENU] and [8] to set
	clock.
bearing display is different from that	• bearing display method is not the same on each unit.
output by another navigation aid	• magnetic variation is applied to external navigator.
	Press [MENU] and [8] and then change bearing mode
	or apply magnetic variation correction.
asterisks are displayed instead of Loran	• wrong Loran TD setting on MENU 8. Display that
TDs	menu and reenter TDs.
Loran TDs wrong	• enter a TD offset value on MENU 8.
speed change reaction is too slow (for	• check for unsuitable smoothing settting. Enter
example, ship is dead in water but display	suitable smoothing figure on MENU 8.
shows ship's speed)
a key is pressed but there is no response	• the keyboard may have locked. Do the following:
	1) Reset the power.
	2) If normal operation could not be restored, press
	[MENU], [9], [8] and [2] to clear all memories.
	If neither remedy works, call for service.

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12-11