1. OPERATION
1.1 Control Description
Cursor Pad
Selects menu items; shifts VRM.
MENU
MODE
ESC
GAIN
RANGE
MARK
ECHO SOUNDER POWER
Selects display mode.
Opens/closes menu; escapes from current operation.
Adjusts gain.
Selects basic display range.
Outputs L/L position to external equipment; registers selected position as waypoint.
Long press: Turns power on/off.
Momentary press: Adjusts display contrast and brilliance.
Display unit
How to remove the hard cover
Place your thumbs at the center of the cover, and then lift the cover while pressing it with your thumbs.
1.2 Power On/Off
Press the [POWER/BRILL] key more than one second to turn on the power. The unit beeps, the startup screen appears, and then the equipment checks the ROM and RAM for proper operation and displays program number. (If “NG” (No Good) appears, try to press any key except the [POWER/BRILL] key to start operation. However, the equipment may not work properly. Contact your dealer.) You may
press any key after the completion of the equipment check to start operation sooner.
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