i-Tech Company LLCTOLL FREE: (888) 483-2418 • EMAIL: info@itechlcd.com • WEB: www.iTechLCD.comNVP115-117-119 / SNK117-119 / NVP1415-1417-1419 User Manual2.1 On-screen Display Operation Chapter 2Membrane Switch FunctionPower lightGreen = OnOrange = Power savingPower on / off LCDDisplay the OSD menuScrolls through menu options and adjusts the displayed control(To auto adjustment by pressing the button for 5 seconds)Exit the OSD screenToggle analog, digital & video connection (DVI-D and video options only)15" LCD membrane17" & 19” LCD membrane