40 Using the projector
Setting a wall color
In the situation where you are projecting onto a colored surface such as a painted wall which may not be
white, the Wall Color feature can help correct the projected picture’s color to prevent possible color
difference between the source and projected pictures. There are several precalibrated colors to choose
from: Light Yellow, Pink, Light Green, Blue, and Blackboard.
To select wall color:
1. Press MENU/EXIT and then press / until the Display menu is highlighted.
2. Press to highlight Wall Color.
3. Press / to select a wall color to suit the color of the surface which you are projecting on.
Hiding the image
In order to draw the audience's full attention to the presenter, you can
use ECO BLANK to hide the screen image. When this function is
activated with an audio input connected, the audio can still be heard.
You can set the blank time in the System Setup: Basic > Operation
Settings > Blank Timer menu to let the projector return the image
automatically after a period of time when there is no action taken on the
blank screen. The length of time can be set from 5 to 30 minutes in 5-
If the preset time spans are not suitable for your personation, select
No matter Blank Timer is activated or not, you can press any key on the projector or remote control
to restore the picture.
Once ECO BLANK is pressed, the projector lamp enters Economic mode automatically.
Locking control keys
With the control keys on the projector locked, you can prevent your projector settings from being
changed accidentally (by children, for example). When the Panel Key Lock is on, no control keys on the
projector will operate except Power.
To lock or unlock the control panel keys:
1. Press MENU/EXIT to open the OSD menu and press / to highlight the System Setup: Basic
2. Press to highlight Panel Key Lock and press / to toggle the function On. A confirmation
message is displayed.
3. Press / to select Yes and press MODE/ENTER.
Freezing the image
Press FREEZE on the remote control to freeze the image. The word
"FREEZE" will be displayed in the upper left corner of the screen. To
release the function, press any key on the projector or remote control.
Even if an image is frozen on the screen, the pictures are running on the
video or other device. If the connected devices have active audio output,
you will still hear the audio even though the image is frozen onscreen.