ViewSonic LS625W - 3200 Lumens WXGA Short Throw Laser Projector with HV Keystone - Page 43
Operations at high altitudes, Using the CEC function, Auto Power
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Operations at high altitudes We recommend using the High Altitude Mode when the environment is at 1500 to 3000 meters above sea level and the temperature is between 5°C to 25°C. Note Do not activate High Altitude Mode if the environment is at 0 to 1500 meters above sea level and the temperature is between 5°C to 35°C. Activating High Altitude Mode under such circumstances will lead to excessive cooling of the projector. Activating High Altitude Mode: 1. Open the OSD menu and enter System > High Altitude Mode menu. 2. The confirm message will be shown, and press / to select Yes. 3. Press [Enter]. There is a chance that louder operational noises will be generated when using the projector in High Altitude Mode. The reason for this is the increased fan speed necessary to improve overall system cooling and performance. Using this projector under extreme environments that exceed the aforementioned limits may lead to auto-shutdown designed to prevent overheating of the projector. Under such circumstances, you should switch to High Altitude Mode to solve these issues. However, this does not mean that this projector is able to operate under any and all harsh or extreme conditions. Using the CEC function This projector supports the Consumer Electronics Control (CEC), allowing you to connect to HDMI and achieve synchronized power ON/OFF operations. This means that when a device that also supports CEC is connected to the HDMI input jack of the projector, switching off the power of the projector will also automatically switch off the power of the connected device. Switching on the power of the connected device will also automatically switch on the projector. Activating the CEC function: 1. Open the OSD menu and enter Power Management > Auto Power On > CEC menu. 2. Press / and select Enable. To ensure proper operations of the CEC function, please verify that the target device has been connected to the HDMI input jack via an HDMI cable and that the CEC function has been activated. CEC function may not be usable according to the connected equipment. 36