Basic Operations; Turning The Power On And Off ([Power] Switch); Adjusting Brightness ([Brightness] Control); Day/ Night - JRC JFC-130 Instruction Manual

Color echo sounder
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3.2

Basic Operations

Turning the Power On and Off ([POWER] switch)

When turning on the power, be sure not to
press any operator panel key at the same
time.
configuration of the until could cause the unit
to malfunction.
Turn the [ POWER ] control clockwise to turn on the power. Turn it
counterclockwise to the OFF position to turn off the power.

Adjusting Brightness ([Brightness] control)

Turn the [BRIGHTNESS] control on the display unit to adjust brightness.
Brightness can he raised from level 0 up to level 10.

Switching Brightness between Day and Night (

DAY/
Press the
key to switch brightness between day and night. The key
NIGHT
toggles each time you press it.

Selecting Display Modes([MODE] switch)

Set the [ MODE ] switch to the mode of your choosing.
Alternates
to
the
hardware
DAY/

key)

NIGHT
13
Operation

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