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5
Control Box Panel
GAIN
RANGE
TRANSDUCER
AUTO
TILT
SECTOR
SCAN
F1
EVENT
R/B
OFF-
CENTER
F2
EVENT
DELETE
MENUTX
TILT
-+-+
TRANSDUCER retracts and lower the transducer. The lamp above the switch flickers while
the transducer is moving and lights when stopped.
TX turns on the transmitter, freeze the display and turns off the
transmitter. The light above the switch is on when the transmitter is turned on
and flickers when off.
Note: The transmitter is turned off when the transducer is retracted even if
the light above the TX switch is on.
MENU turns the menu display on and off.
GAIN adjusts the receiver sensitivity.
Adjust it for clear presentation of fish
school echoes. This control is also
used to change settings on menu
screens.
RANGE selects a picture display range. This control is
also used to select items on menu screens. Note that
this control endlessly turns in both directions.
TILT continuously varies the tilt
angle of the sounding beam
between 0° and - 55°. The operating
angle is always indicated on the
screen.
TRACKBALL moves the trackball mark ( ) to a desired position. The trackball
mark data, i.e., slant range, horizontal range, depth and bearing to the mark, are
always indicated on the screen. Additionally, this control is used to position the
own ship’s mark, enter event marks and set the alarm.