USING THE 150SX
MENU FUNCTIONS
Contrast. The Contrast function allows the user to 
control the level of contrast of the LCD display. The 
150SX will automatically adjust the display contrast 
to compensate for changing ambient temperatures; 
however, some situations may occur where manual 
adjustment will provide a higher level of contrast.
Eleven contrast settings, +5 to 
display contrast will change as the adjustment is made so the optimum level of contrast can be achieved. Use the ARROW buttons to highlight the desired selection. The 150SX will reset to the factory setting when the unit
is powered off.
Display Speed. Display Speed controls the rate at which the graphic information moves across the display. There are 5 possible speeds; the fastest rate (5) is the factory setting. Keep in mind that the closer the update rate matches your boat speed, the more accurate is the graphic depiction of the terrain beneath your boat.
Use the UP and DOWN ARROWS to select the desired update rate. The Display Speed
setting is remembered when the unit is powered off.
Battery Alarm. The Battery Alarm Option allows you to select the voltage level at which the Battery Alarm activates.
At the Battery Alarm menu (under options), you will note that the default setting is OFF.
Push the DOWN ARROW BUTTON to select the feature ON. Push the DOWN ARROW
BUTTON again to move into the ADJUST BATTERY ALARM setting. Using the UP and DOWN ARROW BUTTONS, select a voltage between 9.0 and 12.0.
When the voltage drops below your selected voltage, an audible alarm will
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