19English EnglishUser controlsInstallation menuThe installation menu provides an onscreen display (OSD) for projector installationand maintenance. Use this OSD only when the message No signal input isdisplayed on the screen.The menu options include settings and adjustments for screen size and distance,focus, keystone correction and more.1 Turn on the projector by pressing the POWER button on the control pad.2 Press the MENU button on the control pad to launch the OSD for projectorinstallation and maintenance.3 The background pattern acts as a guide for adjusting the calibration andalignment settings, such as screen size and distance, focus and more.4 The Installation menu includes the following options:• Projection method• Menu location• Keystone settings• Language settings• Reset to factory defaultsUse the up and down arrow keys to select an option, the left and right arrowkeys to adjust selected option settings, and the right arrow key to enter afeature settings submenu. The new settings will be saved automatically uponexiting the menu.5 Push the MENU button anytime to exit the menu and return to the Acerwelcome screen.