Lowrance lmf-400 ユーザーズマニュアル

18 

Reverse Video 
The Reverse Video function swaps the position of dark and light colors 

on the screen. The dark text, which is on top of a light background, will 

be switched to light text on top of a dark background. This feature, 

typically, is used to darken the display for nighttime use.  
NOTE: 

The Reverse Video command is transmitted over the network, so all 

gauges will be synchronized to the same Reverse Video setting. 

To turn on Reverse Video: 
1. Press 

, use the 

 and 

 keys to select 

, and press 

.  

2. Highlight 

 and press 

. You will notice the dark 

and light colors have been swapped for one another.  
3. To switch Reverse Video to its previous setting, return to the Screen 

menu, select 

 and press 

. 

4. Press 

|

 to return to the main display. 

  

   

 

Audio Setup gives you access to the unit's audio functions. There are 

two options on the Audio Setup menu: Key Sounds and Alarm Sounds. 
Key Sounds 
When Key Sounds are turned on, a tone will sound every time you push 

the 

, 

, 

, 

and

 keys. When you turn off Key 

Sounds, no tone will sound when you depress the keys. 
To turn Key Sounds on/off: 
1. Press 

, use the 

 and 

  keys  to  select 

, and 

press 

. A menu will appear with two options: Key Sounds and 

Alarm Sound. 
2. Select 

 and press 

. The Key Sounds menu will 

appear with two options: On and Off.