Cobra Electronics MC600Cx EN - Manual (Page 86)

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7. MAINTENANCE
This chapter gives information on routine maintenance and problem solving
associated with the chartplotter.
7.1 SYSTEM TEST
If you have connected your position-finding device according to the
instructions, and chosen the proper menu selection for your device, and are
still having problems with your chartplotter, the extended auto-test should help
determine the problem. Make sure the chartplotter is turned Off. While
pressing and holding any other button, turn the chartplotter On. A new menu
will appear on the display.
Use the CURSOR button to select the desired test: this will display in reverse
video. To choose the test press the ENTER button. To exit from any submenu
press the ESC button. To exit from the System Test turn Off the chartplotter.
System Test