Samsung SP-A900B - Manual (Page 33)

LED Indicator You can enable or disable the operating LED's on the product.
1) Off : This mode disables the operating LED. However, the LED will come on
regardless of the LED setting when the power is turned on or off or when the
projector is in an abnormal state.
2) On : This mode enables the operating LED so that it can display the current
operating state of the projector.
Light Effect You can turn the LED indicators on your projector on or off according to your
requirements.
1) Off : LED will not come on.
2) In Standby : Turns the LED on in standby mode.
3) In Watching TV : Turns the LED on while watching TV.
4) Always : LED will come on after you turn the TV off.
Appears as an ellipse at the top at the back of your projector.
Blue screen The Blue screen function causes the screen to change to the Blue screen if there is no
signal input from the external device connected to your projector.
1) Off
2) On
Information You can check external source signals, picture setup, PC picture adjustment and lamp
use time.