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4. ARROW KEYS – These keys are used to navigate through the menus,
make menu selections, move the sonar chart cursor and enter data.
5. ENT (Enter) – This key allows you to accept values or execute menu
commands.
6. EXIT – The Exit key lets you return to the previous screen, clear
data or erase a menu.
7. ALARM – The Alarm key is a quick shortcut to the sonar alarms
menu. It allows you to choose which alarms to use and when.
8. ZOUT – (Zoom Out) – This key lets you zoom the screen out. This
key returns you to a full sonar chart display, showing the entire water
column from surface to bottom.
9. ZIN – (Zoom In) – This key lets you zoom the screen in. It enlarges
fish signals, bottom detail and other sonar returns.
Power/lights on and off
To turn on the unit, press PWR.
To change the backlight, press
PWR again. The X-510c and X-515cDF
have three backlight levels. Repeatedly pressing
PWR will cycle
through the backlight settings, turn off the backlight, then turn it back
on again.
Turn off the unit by pressing and holding the
PWR key for about 3 sec-
onds.
Menus
Your sonar unit will work fine right out of the box with the factory de-
fault settings. You only need to learn a few basic functions to enhance
your viewing. We'll discuss them briefly here, then talk about them and
all the other commands in more detail in the next section, which begins
on page 49.
Your unit has three primary menus that control its operation.
They are the Main Menu, the Sonar Menu and the Pages Menu.
Main Menu
The Main Menu contains some basic function commands and some setup
option commands. You access the Main Menu by pressing
MENU|MENU.
You run a command by using the ↑ or ↓ to highlight the command and
then pressing
ENT. To clear the Main Menu screen and return to the
Page display, press
EXIT. (Remember, our text style for "MENU|MENU"
means "press the Menu key twice." See a full explanation of our instruc-
tion text formatting on page 4, Instructions = Menu Sequences.)