Nextar X3i-03 X3I-03 Hardware Manual - Page 14

General Setup Language Tap in the settings menu to enter Language setting menu for language selecting, as shown below: Tap the buttons to select language. Then tap D to confirm or tap U to cancel. Backlight Tap in the settings menu to enter Backlight setting menu for backlight adjusting, as shown below: Tap the first group  buttons to adjust the backlight level. Tap the second group  buttons to adjust the sleep time. There are 6 choices for sleep time (--/5/10/30/60/120). --: The system will keep backlight always on and will not enter sleep mode. 5: The system will keep backlight on for 5 minutes and then enter sleep mode. 10: The system will keep backlight on for 10 minutes and then enter sleep mode. 30: The system will keep backlight on for 30 minutes and then enter sleep mode. 60: The system will keep backlight on for 1 hour and then enter sleep mode. 120: The system will keep backlight on for 2 hours and then enter sleep mode. After setting, tap D to confirm or tap U to cancel. 14