Dell 1800MP Owner's Manual page 28

1st time password input request:
1
Go to Preferences menu, press Enter and then select Password to
a
ENABLE the password setting.
Enable the Password function will pop-up a character screen, key in
b
a 4-digit number from the screen and press the ENTER button.
To confirm, reenter the password.
c
If the password verification is successful, you may resume with
d
accessing the projector's functions and its utilities.
If you have entered incorrect password, you will be given another 2
2
chances. After the three invalid attempts, the projector will
automatically turn off.
NOTE:
If you forget your password, contact Dell or qualified service personnel.
28 Using Your Projector