9PreparationsChapter 02PartsFrontal Buttons― The color and shape of parts may differ from what is shown. Specifications are subject to change withoutnotice to improve quality.TOAUTOMENU GAMEMODE SOURCEAUFunction Key Guide― To activate a button on the product, tap the area on the bottom of the panel.― Tapping around the button label on the front will not activate the button.Icons DescriptionOpen or close the onscreen display (OSD) menu, or return to the parent menu.OSD control lock: Maintain the current settings, or lock the OSD control toprevent unintended changes to settings.• Enable: To lock the OSD control, press the button for 10 seconds.• Disable: To unlock the locked OSD control, press the button formore than 10 seconds.― If the OSD control is locked, Brightness and Contrast can be adjusted. GameMode is available. INFORMATION can be viewed.Press to enable or disable Game Mode.The items below are not available if the Game Mode function is enable.• PICTURE Contrast, Sharpness, SAMSUNGMAGICBright, SAMSUNGMAGICAngel, SAMSUNGMAGICUpscale• COLOR• SETUP&RESET Eco Saving PlusMove to the upper or lower menu or adjust the value for an option on the OSDmenu.Use this button to control the brightness and contrast of the screen.Confirm a menu selection.Pressing the button when the OSD menu is not displayed will changethe input source (Analog / HDMI). If you power on the product or changethe input source by pressing the button, a message that shows thechanged input source will appear at the top left corner of the screen.