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1. OPERATION
1.1 Control Description
Cursor Pad
Selects menu items;
shifts VRM.
Opens/closes menu;
escapes from current
operation.
Selects display mode.
Adjusts gain.
Selects basic display range.
Long press: Turns power on/off.
Momentary press: Adjusts display contrast
and brilliance.
Outputs L/L position
to external equipment;
registers selected position
as waypoint.
POWER
BRILL
MARK
GAIN
RANGE
ESC
MENU
MODE
LS-4100
ECHO SOUNDER
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.