2. Operation 21
2.4.3 Light Intensity
Adjust the intensity off the LEDs (light emitting diodes) to facilitate viewing in bright sunlight or in
reduced visibility.
8. Press Menu, and then Next twice.
1. Press Enter, and then Next twice to go to menu 3C) Light intensity adjustment.
2. Use Up and Down to adjust the intensity of the lights.
3. Press Next to advance to the contrast adjustment page or press Exit twice to return to the
operation display.
2.4.4 Contrast
Adjust the LCD contrast to optimize visibility.
1. Press Menu, and then Next twice.
2. Press Enter, and then Next 3 times to go to menu 3D) LCD contrast adjustment.
3. Use Up and Down to adjust the display contrast.
4. Press Next to advance to the backlight adjustment page or press Exit twice to return to the
operation display.
2.4.5 Backlight Mode
Adjust the LCD backlight control mode to conform to viewing and power supply conditions.
1. Press Menu, and then Next twice.
2. Press Enter, and then Next 4 times to go to menu 3E) Backlight mode.
3. Use Up and Down to select the backlight control mode. The LCD backlight can be always on,
always off or on a four second timer. In the four second timer mode the backlight will come on
for four seconds when any button is pressed.
4. Press Next to advance to the backlight adjustment page or press Exit twice to return to the
operation display.
2.5 System Diagnostic
Diagnose system failures with the sub menus of menu 5) System Diagnostic.
2.5.1 System Sensors Diagnostic
1. Press Menu, Back and then Enter twice to go to menu 5A1).
2. Use Back and Next to select the sensor.
3. Press Enter to see sensor data (see Figure 8).