Unitech Electronics Co., Ltd
Created
by Yukiko
PA500 Operation
Manual
V2.0
Page 73 of 123
4.8 System\Backlight
1. Tap “Backlight”. Under “Battery Power”, check or uncheck “Turn off backlight if
device is not used for”. If you checked, specify the time for idle. (It is better to check
this option in order to save battery power). Check or uncheck “Turn on backlight
when a button is pressed or the screen is tapped. This option is useful especially in
dark environment.
2. Under “External power”, repeat the same steps as step 1.