Using the Fishfinder 340C

If you are turning on your Fishfinder 340C for the first time, use the following procedure. If you have already turned on your Fishfinder, and you are just familiarizing yourself with the basic functions, please go to “Learning the Basic Functions” on this page.

To start your Fishfinder for the first time:

1.Press and hold the Power/Backlight key until the Fishfinder beeps. It should turn on. If the Fishfinder fails to turn on, verify that the wiring adapter is properly connected in the back of the Fishfinder, the Red and Black wires are connected to the correct polarity, and that the 3-Amp fuse is installed and not blown. If the Fishfinder is connected to a power supply that exceeds safe operating levels, a “Battery voltage is too high” warning appears and the Fishfinder turns off. If the Fishfinder does not detect a transducer, it automatically enters Simulator mode (see page 42).

2.When the Fishfinder detects a transducer at initial start up, a Select Transducer Type window appears. Press ENTER.

3.Use the ROCKER to select your transducer type, and press

ENTER.

4.Press QUIT to return to the Sonar Page.

Using the Fishfinder 340C > Testing the Installation

Learning the Basic Functions

To turn the Fishfinder on or off:

Press and hold Power/Backlight to turn the Fishfinder on or off.

To change the software language on the screen:

1.Press and hold ADJ/MENU. The Main Menu appears.

2.Use the ROCKER to select the System tab. Then use the ROCKER again to select the Language field. Press

ENTER.

3.Press up or down on the ROCKER to select a language. Press ENTER. All text on the Fishfinder appears in the chosen language.

To change the backlight setting:

1.Press and release Power/Backlight to show the backlight slider. The backlight slider disappears when idle for

20 seconds.

2.Press up or down on the ROCKER to change the user-set backlight setting. Press and release Power/Backlight to toggle the backlight setting between maximum, user-set, and minimum brightness levels.

3.Press ENTER to return to the previous page.

Fishfinder 340C Owner’s Manual