•If the frequency/resolution of the input signal exceeds the projector's operating range, you will see the message 'Out of Range' displayed on a blank screen.
Utilizing the password function
For security purposes and to help prevent unauthorized use, the projector includes an option for setting up password security. The password can be set through the
WARNING: You will be inconvenienced if you activate the password functionality and subsequently forget the password. Print out this manual (if necessary) and write the password you used in this manual, and keep the manual in a safe place for later recall.
Setting a password
Once a password has been set and activated, the projector cannot be used unless the correct password is entered every time the projector is started.
1. Open the OSD menu and go to 
Setting > Password. Select On by pressing
Left 3 or Right4.
2. When the function is activated for the first time, a prompt will display on the screen.
3. As pictured to the right, the four arrow buttons
Input Password
(Up 5, Right4, Down 6, Left 3) respectively represent 4 digits (1, 2, 3, 4). Press the arrow buttons to enter four digits for the password.
4.When all digits are entered and the password is ready, press AUTO to confirm.
IMPORTANT: The digits being input will display as asterisks
Password: __ __ __ __
Keep this manual in a safe place.
5.Enter the password again for verification.
6.Perform one of the following 3 steps.
i.Press AUTO to continue. The
ii.Press Up 5 to clear and
iii.Press Down 6 to cancel the password
To disable password protection, go to 
Setting > Password after opening the OSD
menu system. Select Off by pressing Left 3 or Right4. Then press Down 6 to confirm or Up 5 to cancel.
Though the password function is disabled, you need to keep the old password in hand should you ever need to change the password by entering the old password.