CAME TH/650 WH Manuel D'installation page 57

Smart backlight
1
Use the keys to set the display smart
backlight mode, choosing from [Std]
(=standard), [Cou] (=courtesy) or [nig]
(=night).
2
Press the key to move to the next
menu.
3
[Std] (=standard)
4
[Cou] (=courtesy)
5
[nig] (=night)