Using Your Projector 193Using Your ProjectorTurning Your Projector OnNOTE: Turn on the projector before you turn on the source. The power buttonlight blinks blue until pressed.1 Remove the lens cap.2 Connect the power cord and appropriate signal cables. For information aboutconnecting the projector, see page 9.3 Press the power button (see page 23 to locate the power button). The Dell logodisplays for 30 seconds.4 Turn on your source (computer, DVD player, etc.). The projector automaticallydetects your source.If the "Searching for signal..." message appears on the screen, ensurethat the appropriate cable(s) are securely connected.If you have multiple sources connected to the projector, press the Source buttonon the remote control or control panel to select the desired source.Turning Your Projector OffNOTICE: Do not unplug the projector before properly shutting down asexplained in the following procedure.1 Press the power button.2 Press the power button again. The cooling fans continue to operate for 90 secondsand then go to standby mode.3 Disconnect the power cord from the electrical outlet.NOTE: If you press the power button while the projector is running, the "PowerOff the Lamp?" message appears on the screen. To clear the message, press anybutton on the control panel or ignore the message; the message disappears after 5seconds.