5
1. Adjust the display brightness
Instruction
Key strokes
Switch the screen brightness state from
automatic to manual.
[SYS], {Brightness Man}
Rotate the knob to adjust the display
brightness.
Switch the screen brightness state back to
automatic.
[SYS], {Brightness Auto}
Cover the light sensor with your finger and
watch as the display brightness adjusts
automatically.
2. Backlit key demo
Instruction
Key strokes
Switch the backlit key state to auto.
[SYS], {KeyBackLight}
Cover the light sensor with your finger and
watch as the back lights come on.
Switch the backlit key state to manual,
and adjust the backlit keys’ brightness.
[SYS], {KeyBackLight}, {BackLight Man},
{Brightness}, {High} {Off} {Brightness},
{Med}
Set the automatic turn-off time interval so
the backlit keys will shut off when not in
operation.
[SYS], {KeyBackLight}, {AutoOffTimer}, {5
Sec}, {10 Sec}
Communication system maintenance and repair often requires a technician to
troubleshoot in bright daylight or in the dark. There is a light sensor on the front
panel of the N9340B that measures the ambient light and automatically adjusts
the brightness of the display and its backlit keys.
You can also manually set the brightness of the display, and the backlit keys, so
they can be seen clearly in any light. The duration of the key light can also be
set to maximize battery life.
Section 1
Auto-Brightness and Backlit Keys
