Reference Guide User guide

36
o after one minute of inactivity. To adjust the time when
your backlight turns o , follow these steps:
1. Tap Start > Settings >
System tab > Backlight. The
Backlight window appears. To
change the timer for external
power, tap the External
Power tab.
2. Select or deselect the two
options.
3. If you selected the  rst
checkbox, choose the length
of time before the backlight
turns o .