ViewSonic PX748-4K User Guide - Page 50
Auto Power On, Smart Energy, USB A Power, This projector supports CEC Consumer Electronics Control
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Menu Option Auto Power On Smart Energy USB A Power Description Signal Selecting VGA/HDMI allows the projector to turn on automatically once the VGA/HDMI signal is fed through the VGA/HDMI cable. You can also select All and the projector will turn on automatically upon receiving either a VGA or HDMI signal. CEC This projector supports CEC (Consumer Electronics Control) function for synchronized power on/off operation via HDMI connection. That is, if a device that also supports CEC function is connected to the HDMI input of the projector, when the projector's power is turned off, the power of the connected device will also be turned off automatically. When the power of the connected device is turned on, the projector's power will be turned on automatically. NOTE: • In order for the CEC function to work properly, make sure that the device is correctly connected to the HDMI input of the projector via an HDMI cable, and its CEC function is turned on. • Depending on the connected device, the CEC function may not work. Direct Power On Allows the projector to turn on automatically once power is fed through the power cord. Auto Power Off Allows the projector to turn off automatically after a set period of time once no input source is detected to prevent unnecessary waste of light source life. Sleep Timer Allows the projector to turn off automatically after a set period of time to prevent unnecessary waste of light source life. Power Saving Lowers power consumption if no input source is detected. When Enable is selected, the projector light source mode will change to SuperEco+ mode after no signal is detected for five (5) minutes. This will also help prevent any unnecessary waste of light source life. When On, the USB Type A port can supply power, and the Control Method will automatically switch to RS-232. 50