Other Keys; Summary Of Modes And Functions; Primary Modes, Data Readouts; Primary Modes, Data Entry - Furuno LC-90 Owner's Manual

OPERATING MODE/FUNCTION SELECTOR KEYS
The four blue keys on the lower left of the keyboard are the Mode selector
keys. The two arrow shaped keys select which one of the nine Mode screens
is in use. Pressing these keys causes the Mode indicator arrow to move
sideways to align itself above the labels for the operating Mode on the panel
beneath the LCD display. The readouts on the LCD itself will change in
accordance with the Mode selected. Pressing the left arrow when the mode
indicator is located at the left-hand edge of the panel will shift the indicator
to the far right-hand Mode. Similarly, when the indicator is at the far right
end, the arrow will shift the indicator to the far right-hand Mode.
The key labeled [#] is used to select one of the ten secondary Functions. It
is first pressed followed by a number from [O] to [9] to acccess these
secondary Functions. Note that it isnTt necessary to press the |ENT| key to
activate the Function. The LCD display will changed in accordance with the
secondary Function selected by the operator.
The | TD <-» L/L | key is used to change position data from Latitude/Longitude
format to TD format and vice versa.
OTHER KEYS
At the top left of the keyboard there are four brown keys, the [E~VT| ,1~CLR|
A
and
▼
keys. fEVTI stands for Event, and is used when a position is
to be stored in the Event Memory or Waypoint Memory, or when an external
plotter or printer is connected to the LC-90. The position at the moment this
key is pressed is sent out to the external instrument.
The brown [CLR| key stands for Clear. It is used to clear a number from
the display or to silence the audible alarm. The two arrow shaped keys
A
and
▼
are used to select where the data entry cursor will be located on
one of the five lines on the display. The cursor will be indicated by the
flashing of the far left character on the desired line. Before typing in the
new data, the operator presses the fCLRl key to clear the line, and af ter
entering new data, the blue [ÉNT| key (standing for Enter) will be pressed.
The cursor will automatically advance to the next line where data may be
entered after the | ENTj key is pressed.
Note that if you accidentally type in the wrong data or if you hit the wrong
key, you may hit the [CLR| key, followed by |ENT 1 to retrieve the data
stored previously.
The following list shows a summary of the primary operating Modes, and the
secondary Functions of which the LC-90 is eapable of showing.
SUMMARY OF MODES AND FUNCTIONS
Primary Modes, Data Readouts:
S/C: Speed Made Good and Course Made Good, together with present position
(in L/L or TD's, at the discretion of the operator) and the Route and/or
Way points in use.
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VTP: Velocity To Destination (in knots) and Time to Go (in Hours and
Minutes), again together with present position and Route and/or Waypoints
in use.
R/B: Range (in nautical miles) and Bearing (in degrees Magnetic or True,
at the operator's discretion) from present position to destination waypoint,
again together with present position and Route and /or Waypoints in use.
XTE: Cross-Track Error (in nautical miles off the desired track), with
arrow indicators to show direction of offset and direction to steer to get
back an track. As usual, present position and Route and/or Waypoints in
use are shown. Course offset in degrees and Range to destination
waypoint are display ed as well.
Primary Modes, Data Entry:
NAV: This is the Navigation Mode. The desired Route and/or Waypoint (s)
desired are selected in this Mode. Cross-Track Error with Course offset
and Range and Bearing to the desired waypoint are also displayed.
PLN: This is the Route Planning Mode. The waypoints involved in up to
ten different Route Plans are selected in this mode.
WPT; This Mode is used to enter position data into a Waypoint. Waypoint
data may be entered or recalled for confirmation either as L/L or as TD's.
CUC: This is the Calculation Mode. Trial rho-rho calculations of Range and
Bearing from waypoint to waypoint may be done here. It is also possible to
Define a waypoint by Range and Bearing from present position in this
Mode.
ALM: This is the Mode where Alarm limits are defined for the Cross-Track
Error alarm, the Border alarm, the Arrival alarm and the Anchor Watch
alarm.
Secondary (#) Functipn:
In each of these function the blue QO key is pressed, followed by a single
number. To leave a secondary Function, hit either the left or right arrow
keys.
#0 = This is the Event Memory Function, where the operator can display the
contents of each event memory.
#J_: This is the Initialization Function. The user enters the approximate
present position, and if he chooses to Disable automatic selection, the GRI
and the slave secondaries for use by the LC-90.
#2: This is the Position Offset Function. The operator may enter the
amount of delta L/L or delta TD offsets desired for a particular area.
There are nine "pages" of offset information that may be stored in memory.
#3: This is the Averaging Time Function. The operator may choose the
amount of smoothing time constant to be appiied to the L/L and speed
display. The type of output data available at the rear panel for external
devices such as plotters or printers is specified in this Function as well.
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