Dell 1800MP Owner's Manual - Page 27

PREFERENCES VOLUME-Press to decrease the volume and to increase the volume. MUTE-Allows to mute the sound. MENU LOCK-Select ON to enable Menu Lock for hiding the OSD menu. To disable Menu Lock, press the Menu button on the control panel or the remote control for 15 seconds. MENU TIMEOUT-Adjust the time delay of the OSD Timeout. The Default setting is 30 seconds. PASSWORD-Protect your projector and restrict access to it with Password Security feature. This security utility enables you to impose a variety of access restrictions to protect your privacy and stop others from tampering with your projector. This means that the projector cannot be used if it is taken without authorization, and thus serves as a theft-prevention feature. When Password Protect is enabled (On), a Password Protect screen requesting you to enter a password will be displayed when the power plug is inserted into the electrical outlet and the power for the projector is first turned on. By default, this function is disabled. You can enable this feature using the Password menu. This password security feature will be activated on the next time you turn on the projector. If you enable this feature, you will be asked to enter the projector's password after you turn on the projector: Using Your Projector 27