Dell 1800MP Owner's Manual page 29

To cancel the password function, select OFF and enter the password to
3
disable the function.
C —
HANGE PASSWORD
and confirm the new password again.
Select ON to activate the built-in Test Pattern for self-testing
T P —
EST ATTERN
on focus and resolution. Press the Menu button to turn off Test Pattern.
F R —Select
ACTORY ESET
Reset items include both computer sources and video source settings.
Key in the original password, then enter the new password
ON
to reset the projector to its factory default settings.
Using Your Projector 29