1. OPERATIONAL OVERVIEW
1-4
1.3 Turning the Unit On/Off
Press the POWER/BRILL key to turn the unit on. A beep sounds and then the equipment
shows the startup NavNet screen (about 20 seconds), the product information screen,
startup test results and chart usage disclaimer. During this period the equipment is
inoperative. The startup test checks the ROM, RAM, internal battery and backup data for
proper operation, displaying the results for each as OK or NG (No Good). If NG appears an
appropriate message appears on the screen. For any NG, try to press any key to go to the
chart disclaimer screen, then perform the diagnostic test as shown in the paragraph “8.8
Diagnostics.”
For start up with the radar display, the magnetron takes from one minute and thirty
seconds to three minutes (depending on radar model) to warm up before the radar can be
operated. The time remaining for warming up of the magnetron is counted down at the
center of the display.
You may press any key at the chart disclaimer screen to show the last-used display, or wait
several seconds to let the equipment do it for you.
To turn the unit off, press and hold down the POWER/BRILL key until the screen goes off
(approx. 3 sec.). To protect the LCD attach the hard cover. Note that the network sounder
will be turned off approx. three minutes after turning off the power. This is due to the
system’s electrical characteristics.
Note: The first time you turn on the power (or any time the power is applied after a memory
reset), you are asked if you want to start the simulation mode, which provides simulated
operation of the equipment after the installation mode selection. Push the ENTER knob to
start the simulation mode, or press the CLEAR key to start normal operation. For further
details about the simulation mode, see the paragraph “1.10 Simulation Display.”
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