Lowrance x510c ユーザーズマニュアル

36 

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. 

To turn on the unit, press 

. 

To change the backlight, press 

 again. The X-510c and X-515cDF 

have three backlight levels. Repeatedly pressing 

 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 

 key for about 3 sec-

onds. 

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 

|

. 

You run a command by using the 

↑ or ↓ to highlight the command and 

then pressing 

. To clear the Main Menu screen and return to the 

Page display, press 

. (Remember, our text style for "

|

" 

means "press the Menu key twice." See a full explanation of our instruc-
tion text formatting on page 4, Instructions = Menu Sequences.)