3. OPERATION
3-1
Illumination Key
3
Turns ON/OFF the display Back-light.
Holding down for one second will show a
screen to adjust:
Battery Voltage Level Indication
Indicates the battery level in five steps. (See p.3-4)
Input Mode Indication
Indicates the input key mode (
input. (See p.3-29)
Signal Level indication
Indicates the reflected light intensity in five steps, with two
additional signal status indicators. (See p.3-4)
3-1
Display and Key Functions
1.Backlight, 2.Sound
or
) during input PT or CD
A
1