Control Functions - Humminbird 100SX Single Beam Operation Manual

CONTROL FUNCTIONS

The 100SX uses a simple 5-button keypad for all user input. When any button is
pressed, an audible "chirp" confirms the control input. In the event that a
particular button has no function or is inappropriate for the situation, an audible
"error", or multiple chirps, will be heard.
POWER, powers the 100SX 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. With the unit powered off, press and hold POWER for several seconds
until a continuous chirp is heard.
LIGHT controls the unit's 3-position display backlight. With the unit powered on,
pressing LIGHT once will turn the backlight on "high". Pressing LIGHT a second
time will turn the backlight on "low", and pressing a third time will turn the
backlight off. The backlight is very effective for low-light and nighttime operation.
When the backlight is on, the 100SX will consume more power than with the backlight off. This is
important when using the 100SX in a portable configuration powered by a separate battery, or
when powering the unit from a trolling motor battery.
NOTE: When powering the unit from a battery such as in portable applications, avoiding use of
the backlight prolongs battery life.
The three lower buttons, MENU, UP ARROW, and DOWN ARROW work together to control the
100SX menu-controlled user functions.
MENU brings a menu on-screen for adjustment. In normal operation, pressing MENU repeatedly
will cycle through all available menu headings. When the desired menu heading is displayed, the
full menu appears after a short pause. A menu remains on-screen for several seconds allowing
user adjustment by means of the ARROW keys. If no adjustment is made in the allotted time, the
menu disappears. If you need the menu to remain on-screen longer to study the adjustment
options, 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.
Pressing MENU will bring up the last used menu.
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 symbols indicate which
ARROW button has a function in a particular situation. Either one or both ARROW buttons can be
used to adjust the menu function. A hollow ARROW symbol means that the corresponding
ARROW button has no function. Pressing that button will result in no adjustment and the "error"
audible will be heard. A solid ARROW symbol means that the corresponding ARROW button can
be used to affect the menu adjustment.
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
frequently used menu can be adjusted very quickly using this technique.
After an adjustment is made to a menu function, the menu "times out" after several seconds and
the unit returns to normal operation.
All menus use the same basic layout as shown in Figure F. The heading at the top describes the
menu function (see Menu Functions for more details on individual functions). The UP ARROW