Using Your Projector | Dell 4210X guide

AUDIO INPUT—Select the Audio input source, options are: Audio-A, Audio- B, Audio-C, and HDMI.

VOLUME—Press to decrease the volume and to increase the volume. SPEAKER—Select On to enable speaker. Select Off to disable speaker. MUTE—Allows you to mute the sounds for audio input and audio output.

POWER SETTINGS—Select and press to activate power settings. The power settings menu consists of the following options:

POWER SAVING—Select Off to disable Power Saving mode. By default, the projector is set to enter power saving mode after 120 minutes of no activity. A warning message appears on screen showing a 60-second countdown before switching to power saving mode. Press any key buttons during countdown period to stop power saving mode.

You can also set a different delay period to enter power saving mode. The delay period is the time you want the projector to wait without an input signal. Power saving can be set to 30, 60, 90, or 120 minutes.

If an input signal is not detected during the delay period, the projector turns off the lamp and goes into power saving mode. If an input signal is detected within the delay period, the projector automatically turns on. If an input signal is not detected within two hours during power saving mode, the projector switches from Power Saving mode to Power Off mode. To turn on the projector press the Power button.

QUICK SHUTDOWN—Select Yes to turn off the projector with a single press of the Power button. This function allows the projector to quick power off with an accelerated fan speed. Slightly higher acoustic noise is expected during quick power off.

NOTE: Before you turn on the projector again, wait for 60 seconds to allow the internal temperature to stabilize. The projector will take a longer time to turn on if you try to power on immediately. Its cooling fan will run at full speed for about 30 seconds to stabilize the internal temperature.