2-2
Raychart 425 Chartplotter
2.2 Switching On/Off
➤
To turn the chartplotter display unit on, press the
POWER
key. The keys
illuminate, the display unit beeps and the Raychart logo is displayed,
followed by the following warning:
WARNING
THE ELECTRONIC CHART IS AN AID TO
NAVIGATION DESIGNED TO FACILITATE
THE USE OF AUTHORISED GOVERNMENT
CHARTS, NOT TO REPLACE THEM. ONLY
OFFICIAL GOVERNMENT CHARTS AND
NOTICES TO MARINERS CONTAIN ALL
INFORMATION NEEDED FOR THE SAFETY
OF NAVIGATION AND, AS ALWAYS, THE
CAPTAIN IS RESPONSIBLE FOR THEIR
PROPER USE.
Press “ENTER” to continue.
When you have read and understood the warning, press the
ENTER
key.
The chart is displayed.
If this is the first time that the chartplotter has been switched on, and no
chart card is installed, the display shows the background world map at
Lat 0°/Lon 0°. Otherwise, the display shows the selected chart area and
any data that were displayed when the unit was last used.
➤
To turn the display unit off, press and hold the
POWER
key for at least
3 seconds. A countdown timer is displayed; when it reaches zero the
display and key back-lights extinguish.
Changing the Lighting and Contrast
You can change the level of backlighting and contrast for the screen. The
key backlighting remains on to enable the keys to be seen at all times.
➤
To change the lighting and contrast:
1. Press the
POWER
key to display the lighting controls (Figure 2-1).
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