Operation Manual

Page 110 CP590
18. TECHNICAL TESTS
18.0 SYSTEM TEST
If you have connected your CP590 according to the instructions, and chosen the proper
menu selection for your device, and are still having problems with your CP590, the extended
auto-test should help determine the problem. Make sure the CP590 is turned Off. While
pressing and holding [CLR], turn the CP590 On. A new menu will appear on the display:
Figure 18.0 - System Test
Use the ShuttlePoint knob to select the desired test. Choose the test, press [ENT]. To exit
from any submenu press [CLR]. To exit from the System Test turn Off the CP590.
18.0.0 RAM Menu (reset)
NOTE
After performing a RAM Clear all Marks, Routes and tracks will be erased. To backup these points
refer to Chapter 11 for details.
This test verifies the integrity of the memories and if desired during this test all the internal
memory can be erased and the default setting restored.
RAM Clear
To clear internal memory. If the CP590 exhibits unusual operations, or appears to be
malfunctioning, it may be possible to correct the problem by clearing RAM.
This operation will erase all Marks, Routes, stored Track plots and Destinations. It will also
return all selections (Input Data Format, Autopilot selection, etc.) to original default values.
To confirm clear RAM press [ENT] again (but if at this time you do not wish to clear RAM
press [CLR]).
18.0.1 DIM Menu
To select the desired value for brightness and keypad light.
Contrast
Each time you move the ShuttlePoint knob to right, the screen will decrease brightness,
move it to the left to increase brightness.