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KEYBOARD BASICS
The unit sounds a tone when you
press any key. This tells you the
unit has accepted a command.
ON/CLEAR
Use this key to turn the unit on. It
also clears menu selections and
the menus from the screen.
OFF
This key turns the unit off.
MENU
The X-45 has many features that are accessed with this key. To see the
first menu, press the MENU key. To see the other menus, press the MENU
key repeatedly.
UP and DOWN ARROWS
Use these keys to adjust virtually every feature and function on the unit.
NOTE: The up arrow key also stops the chart when no menus are
displayed. In other words, anytime you wish to stop the chart, first make
certain no menu is on the screen. Now press the up arrow key. The chart
freezes and the word “STOP” appears at the top of the screen. To start the
chart, press the up arrow key again.
DISPLAY - General
The lights flash for about ten seconds when the X-45 is turned on. Three
menus appear, one after the other. The menus are the lights (LAMP), feet-
meter selection (FEET/METER), and contrast adjustment (DARK/LIGHT).
To turn the lights on, press the up arrow key. To switch from feet to meters,
press the down arrow key when the proper menu appears. To adjust the
contrast, wait for the DARK/LIGHT menu to
appear. Now press the up arrow key to
darken the screen, the down arrow to lighten
it. The menus disappear after a few seconds.
If you don’t want to wait, press the ON/
CLEAR key to clear the menus from the
screen.
When the X-45 is first turned on, the display
appears similar to the one at right. The unit is
in the automatic mode. The depth range
displays on the upper left side of the screen.