Insignia 450TX - Manual (Page 14)

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CONTROL FUNCTIONS
The 450TX uses a simple six button keypad for all user input. Press any button
and an audible “chirp” confirms the control input. If a button has no
function or is inappropriate for the situation, an audible “error” is heard. The
unit sounds multiple chirps.
Power. The Power button powers the 450TX up for normal
operation. When the unit is on, POWER turns the unit off.
POWER can also be used to go directly into Simulator mode.
To enter simulator, with the unit powered off, press and hold
POWER for several seconds until a continuous chirp is heard.
Light. LIGHT controls the unit’s display backlight. With the
unit powered on, press LIGHT once to turn the backlight on
“low.” Press LIGHT a second time to turn the backlight on
“medium,” a third time to turn the backlight on “high”, and
a fourth time to turn the backlight off. The backlight is very
effective for low-light and nighttime operation. When the
backlight is on, the 450TX will consume more power than
with the backlight off. This is important when using the 450TX in a portable
configuration powered by a separate battery, or when powering the unit
from a trolling motor battery.
When powering the unit from a battery such as in portable
applications, you can prolong the battery life by using the
backlight at a minimum.
The three lower buttons, MENU, UP ARROW, and DOWN ARROW work
together to control the 450TX menu-controlled user functions.
View. VIEW selects one of several screen configurations or “views” possible
depending on the transducer in use. When using the standard (Tri-beam)
transducer, without the optional speed/temp sensor connected, the VIEW
button toggles the display between the full-screen 2D View and the Large
Digital Readout View.
The 2D View is the default view, and the view which is first seen at power-
up. Pressing VIEW again will select the Large Digital Readout View, which
increases the size of key digital information so that it can be viewed from a
USING THE 450TX
CONTROL FUNCTIONS
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