Lowrance m56 s 操作ガイド

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System Setup Menu, left, with Pop-up Help command highlighted. At

right, this example shows the Pop-up Help message for the Sensitivity

command, located on the Sonar Menu.

Reset Options

To reset all features to their factory defaults:

Press 

|

|

↓ to 

|

|

↓ to 

|

|

← to

|

.

NOTE:

Reset Options does not erase any waypoints, routes, icons, plot trails or
sonar logs.

System Menu with Reset Options command selected.

Screen Contrast and Brightness

To access the Screen menu, press 

|

|

.

To adjust the display's contrast:

The 

 slider bar is already selected. Press 

→ or ← to move the

bar. The left end of the scale is minimum contrast; the right end is
maximum contrast.