Basic Operation

Turning the Fishfinder 400C On or Off

Press and hold thePOWER key until the unit beeps and the Home screen appears.

Note: When you turn on the Fishfinder 400C for the first time, you have to select a language, transducer type, units of measure, and color scheme.

Adjusting the Backlight Setting

1.Press and release thePOWER key.

2.Press left on the ROCKER to decrease the brightness; press right to increase.

Using Simulator Mode

If a transducer is not connected, no data is shown on the screens. By turning on Simulator Mode, the Fishfinder 400C acts as though a transducer is connected. Use Simulator Mode to practice and learn how to use your Fishfinder 400C.

Caution: When in Simulator Mode, the depth, temperature, and speed information are simulated. They do not represent the actual depth, water temperature, or vessel speed.

Basic Operation

Using the Fishfinder 400C Keypad

Power/

Backlight

Range (-/+)

ROCKER

SELECT SELECT

HOME MENU

MENU

HOME

POWER/BACKLIGHT—Press and hold to turn the unit on or off; press and release to adjust the backlight and day/night modes.

RANGE (-/+)—Press to adjust the range of the sonar.

ROCKER—Press up, down, left, or right to move through menus, highlight fields, and enter data.

SELECT—Press to select highlighted items and confirm on- screen messages.

HOME—Press to return to the Home screen.

MENU—Press to access additional settings and configuration options; Press to return to the previous screen when indicated.

Fishfinder 400C Owner’s Manual