ViewSonic PX748-4K - 4K UHD Projector with 4000 Lumens 240Hz 4.2ms for Home Thea - Page 27
Operation
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Operation Turning the Projector On/Off Starting Up the Projector 1. Press the Power button to turn on the projector. 2. The light source will light up, and a "Power On/Off Ring Tone" will play. 3. The Power Indicator Light stays green when the projector is On. NOTE: • If the projector is still hot from previous use, it will run the cooling fan for 90 seconds before activating the light source. • To maintain light source life, once you turn the projector On, wait at least five (5) minutes before turning it off. 4. Turn on all of the connected equipment, i.e. notebook, and the projector will start to search for an input source. NOTE: If the projector detects an input source, the Source Selection Bar will appear. If an input source is not detected, the message, 'No Signal' will appear. First Time Activation If the projector is activated for the first time, select your OSD language following the on-screen instructions. 27