Intel 150SX - Manual (Page 13)

Light. LIGHT controls the unit’s display backlight. With
the unit powered on, press LIGHT once to turn the
backlight on “high.” Press LIGHT a second time to turn
the backlight on “low,” and a third time turns the
backlight off. The backlight is very effective for low-
light and nighttime operation. When the backlight is
on, the 150SX will consume more power than with the
backlight off. This is important when using the 150SX
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 150SX menu-controlled user functions.
Menu. MENU displays a menu on-screen
for adjustment. In normal operation,
pressing MENU repeatedly cycles through
all available menu headings. When a menu
heading displays, the full menu appears
after a short pause. A menu remains on-screen for several seconds, and can
be adjusted by using the ARROW keys. If no adjustment is made in the
allotted time, the menu disappears. If you want the menu to remain on-
screen longer press and hold MENU—the menu will remain on-screen
indefinitely. Once you release the menu button, the screen will time out.
Once a menu times out, it is still considered the active menu. Press MENU
to bring up the last menu used.
Arrow Keys. The UP ARROW and DOWN ARROW make adjustments to
menu functions. On the left side of every menu there are UP ARROW and
DOWN ARROW symbols.
The ARROW buttons often can be used when no menu is on-screen. In
these situations, pressing the ARROW button affects the function of the
active (last-used) menu. This is a short-cut to menu operation. The menu
appears on-screen while the adjustment is made and times out. A
11
USING THE 150SX
CONTROL FUNCTIONS
Menu Heading