Changing the LCD Contrast
To adjust the LCD contrast on the touch screen:
1 Press and hold the Backlight button.
The screen lights up.
2 While still holding the Backlight button, press the Page Up button once
to increase the LCD contrast one level.
The LCD contrast is adjusted one level up.
Press the Page Down button once to decrease the LCD contrast one
The LCD contrast is adjusted one level down.
3 Release the Backlight button when the contrast is satisfactory.
The LCD contrast can be adjusted 16 levels.
To adjust the contrast multiple levels, you have press the Page Up or Page Down
button multiple times. When you press and hold the Page Up or Page Down
button, the LCD contrast will only change one level.