6D. “ ”Menu button Press the button to show the OSD main menu. As a confirmation key during the OSD operation.E. “ ” Power buttonPress the button to turn ON or turn OFF the monitorF. POWER LED Indication Green - Power on LED light off - Power off Flash Green - Sleep mode (PC mode only)4. OSD MenuHot key::::Quick adjust keys from front panel hot keys::::VOLUME:Press or button to select the function and press / buttons toadjust the volume , the press MENU button to exit OSD menu.KEY LOCK:Push MENU key for 6 sec to enable this function.KEY UN-LOCK:Push MENU key for 6 sec to disable this function.