User`s guide
Fine-Tuning the Projector 127
■ Remote Receiver
Deactivates the projector’s front and/or back sensors that detect 
signals from the remote control. Use this setting to prevent use of 
the remote control or to stop interference from bright fluorescent 
lights.
■ Test Pattern
Displays a test pattern for use when adjusting the zoom and focus, 
and when performing keystone correction.
Using the Projector Security Features
To prevent unauthorized use of the projector, you can do the 
following:
■ Assign a password. You can use the password to prevent the 
projector from being turned on, prevent your custom startup 
screen from being changed, and lock network settings.
■ Create a custom screen that is displayed at startup and/or when 
the 
A/V Mute button is pressed. The screen can be locked with a 
password to discourage theft and provides a way to identify the 
projector should it be stolen. See page 129. 
■ Disable the projector’s buttons; this is useful, for example, if 
you’re projecting in a classroom and you want to ensure that no 
one touches the projector’s buttons while you’re using the remote 
control. See page 131. 
Enabling Password Protection
The default setting for the password is 0000. Follow these steps to 
create a new password:
1. Press the 
Freeze button on the remote control for about five 
seconds.
note
You can also attach a 
security cable to the 
projector to prevent theft 
(see page 186).
caution
If you lose the remote 
control, you will not be able 
to enter the password. Keep 
the remote control in a safe 
place at all times. Also, it’s a 
good idea to write down 
your password. 










