Operation Manual

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User Manual
with the relative menu window. To choice the test press 'ENTER'. To exit from any submenu
press 'CLEAR'. To exit from the System Test turn Off the chart plotter.
6.7.1 RAM MENU
This test verifies the integrity of the memories and if preferred during this test all
the internal memory can be erased and the default setting restored.
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 RAM Test
To verify the integrity of the RAM. If on the screen the message "ERROR" appears,
the RAM is physically damaged.
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 RAM Clear
To clear internal memory. If the chart plotter exhibits unusual behaviour, or appears to be
malfunctioning, it may be possible to correct the problem by clearing RAM. This opera-
tion will erase all Marks, Events, Routes, stored track plots and destinations. It will also
return all selections (Input Data Format, Autopilot selection, etc.) to original default
values. To confirm to clear RAM press 'ENTER' again (but if at this time you do not
wish to clear RAM press 'CLEAR').
6.7.2 DIM MENU
To select the preferred value for contrast and backlight.
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 Contrast
Each time you pressed the cursor key to right, the screen will decrease brightness, in-
stead of to left it will increase brightness.
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 Backlight
To set the backlight. Operates in similar mode as Contrast.
6.7.3 CARTRIDGES
To check the C-CARD and its connector.
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 Background ROM
To test the WorldWideBackground. If there is not a malfunction, the code of the Back-
ground and the message "OK" are shown.
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 C-CARD Test
To test the C-CARD. There are the possible situations: