Table 
of 
Contents 
Cleaning 
the 
Screen 
.............................................................................................. 
5 
Software 
License 
Agreement 
................................................................................ 
6 
Introduction 
............................................................................................ 
1 
Index 
........................................................................................................ 
7 
Registering 
Your 
Device 
....................................................................................... 
1 
Contacting 
Garmin 
Product 
Support 
..................................................................... 
1 
Manual 
Conventions 
............................................................................................. 
1 
Getting 
Started 
....................................................................................... 
1 
Keys 
...................................................................................................................... 
1 
Turning 
on 
the 
Device 
Automatically 
..................................................................... 
1 
Selecting 
the 
Transducer 
Type 
............................................................................. 
1 
Adjusting 
the 
Contrast 
........................................................................................... 
2 
Setting 
the 
Beeper 
................................................................................................ 
2 
Menu 
Timeout 
....................................................................................................... 
2 
Using 
Quick 
Adjust 
................................................................................................ 
2 
Sonar 
Display 
......................................................................................... 
2 
Sonar 
....................................................................................................... 
2 
DownVu 
Sonar 
View 
............................................................................................. 
2 
Sonar 
Frequencies 
................................................................................................ 
3 
Adjusting 
the 
Range 
of 
the 
Depth 
Scale 
............................................................... 
3 
Adjusting 
the 
Zoom 
............................................................................................... 
3 
Pausing 
the 
Sonar 
Screen 
.................................................................................... 
4 
Setting 
the 
Sonar 
Scroll 
Speed 
............................................................................. 
4 
Configuring 
the 
Appearance 
of 
Suspended 
Targets 
............................................. 
4 
Sonar 
Gain 
and 
Noise 
Settings 
............................................................................. 
4 
Alarms 
................................................................................................................... 
4 
System 
Settings 
.................................................................................................... 
5 
System 
Unit 
Settings 
............................................................................................. 
5 
Appendix 
................................................................................................. 
5 
Specifications 
........................................................................................................ 
5 
Cleaning 
the 
Outer 
Casing 
.................................................................................... 
5 
Table 
of 
Contents