[. . . ] Acer Projector User's Guide Original Issue: 09/2018 Changes may be made periodically to the information in this publication without obligation to notify any person of such revisions or changes. Such changes will be incorporated in new editions of this manual or supplementary documents and publications. This company makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims the implied warranties of merchantability or fitness for a particular purpose. Record the model number, serial number, purchase date and place of purchase information in the space provided below. [. . . ] To obtain an image size of 60" set the projector at a distance 2. To obtain an image size of 60" set the projector at a distance 2. To obtain an image size of 60" set the projector at a distance 1. English Using the OSD menus • • To open the OSD menu, press "MENU" on the remote control. When the OSD is displayed, use the keys to select any item in the to enter main menu. After selecting the desired main menu item, press submenu for feature setting. €¢ • • • Use the using the keys to select the desired item and adjust the settings by keys. Select the next item to be adjusted in the submenu and adjust as described above. Press "BACK" on the remote control, the screen will go back to the previous menu or exit OSD. The OSD menu will close and the projector will automatically save the new settings. Main menu Setting Sub menu Note: Some of the following OSD settings may not be available. 20 English Color LumiSense The light sensor of LumiSense+ technology can intelligently optimize the brightness and color saturation of projected image based on actual ambient light. The feature greatly enhances dark detail visibility and color saturation. • • • • Off: For normal mode. (ambient light sensor is off) Normal: Select "Normal" to meet the visual effect of dark detail enhancement. boost: Select "Boost" to meet the visual effect of brightness boost. Dynamic Black:automatically optimize the display of dark movie scenes enabling them to be shown in incredible detail. Low / Medium / High: Select Low / Medium / High to reduce different exposure levels of blue light dynamically. <Note>: Once BluelightShield is enabled , LumiSense switches to "Off". BluelightShield • • Display Mode There are many factory presets optimized for various types of images. "Contrast" controls the difference between the lightest and darkest parts of the picture. Adjusting the contrast changes the amount of black and white in the image. [. . . ] Connect the device into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/television technician for help. Notice: Shielded cables All connections to other computing devices must be made using shielded cables to maintain compliance with FCC regulations. notice: Peripheral devices Only peripherals (input/output devices , terminals , printers , etc. [. . . ]