Lowrance x510c ユーザーズマニュアル

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To adjust the display's brightness: 
Press 

↓ to 

. Press 

→ or ← to move the bar. The left end of the 

scale is minimum contrast; the right end is maximum contrast. 
To adjust the screen's display mode: 
Press 

↓ to 

|

|press 

↑ or ↓ to select mode|

. 

 

The sensitivity controls the ability of the unit to pick up echoes. Sensi-

tivity can be adjusted, because water conditions vary greatly. A low 

sensitivity level (from zero to 50 percent) excludes much of the bottom 

information, fish signals, and other target information. 
High sensitivity levels let you see this detail, but it can also clutter the 

screen with many undesired signals.