Acer H7550STz User Manual - Page 40
H7550BD/E155D/HE-815J/H1P1406/H7550BDz: 4.9 to, Refer to the How to Get a Preferred Image Size
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30 English 3 Partial, scrolling • Press "RESYNC" on the control panel or remote or incorrectly displayed image (For notebooks) control. • For an incorrectly displayed image: • Follow the steps for item 2 (above) to adjust the resolution of your computer. • Press the toggle output settings. Example: [Fn]+[F4], Compaq [Fn]+[F4], Dell [Fn]+[F8], Gateway [Fn]+[F4], IBM [Fn]+[F7], HP [Fn]+[F4], NEC [Fn]+[F3], Toshiba [Fn]+[F5] • If you experience difficulty changing resolutions or your monitor freezes, restart all equipment including the projector. 4 The screen of the notebook computer is not displaying your presentation • If you are using a Microsoft® Windows® based notebook: Some notebook PCs may deactivate their own screens when a second display device is in use. Each has a different way to be reactivated. Refer to your computer's manual for detailed information. • If you are using an Apple® Mac® OS based notebook: In System Preferences, open Display and select Video Mirroring "On." 5 Image is unstable • Use "Tracking" to correct it. Refer to the "Image" or flickering section for more information. • Change the display color setting on your computer. 6 Image has vertical • Use "Frequency" to make an adjustment. Refer to flickering bar the "Image" section for more information. • Check and reconfigure the display mode of your graphics card to make it compatible with the projector. 7 Image is out of focus • Adjust the focus ring on the projector lens. • Make sure the projection screen is within the required distance: H7550ST/E155S/HE-815ST/H1P1403/H7550STz: 3.0 to 5.9 feet (0.9 to 1.8 meters) H7550BD/E155D/HE-815J/H1P1406/H7550BDz: 4.9 to 15.1 feet (1.5 to 4.6 meters) Refer to the "How to Get a Preferred Image Size by Adjusting Distance and Zoom" section for more information.