[. . . ] Enter the main menu of the on-screen display (OSD). + MENU LED Status Display The following table describes the various power states of the LCD monitor as represented by different LED color. Power On Standby No power LED Color Green Red Blank 4 VTM-LCD220P 3 OSD Control Function List OSD Menu Picture Mode 1. Sharpness Press " " OR " " to select the picture mode "Standard, Movie, Vivid, Sport, Game" This is used to set the brightness of the screen. Press " " OR " " to adjust the parameter. Press " " OR " " to adjust the parameter. Press "" OR "" to adjust the parameter. Adjust the sharpness. [. . . ] By following these guidelines you can ensure many years of trouble free use. 1. The LCD monitor's plastic casing and LCD glass panel can be cleaned with a soft, lint-free cloth. Never use scrub pads or other cleaning materials with abrasive surfaces to clean your LCD monitor!A slightly damp cloth or newspaper may be used to clean the glass plate of fingerprints or smudges. For the plastic case, a mild detergent may be used to clean the surface. However, you should ensure not to use too much detergent or water as this could leak into the interior of the casing. Do NOT use cleaning fluids based on alcohol, methylated spirit, or ammonia. However, the use of strong chemical cleaning agents may damage this coating. Use only a mild soap or detergent and water or specially formulated cleaners made for cleaning glass panels. Never use the LCD monitor in or around areas where water may pose a potential hazard to normal operation. Only use the LCD monitor indoors, and avoid monitor contact with oil, vapor, steam, moisture and dust. The LCD monitor should be used in a clean and low humidity environment. Keep the LCD monitor away from heaters or other heat sources such as lighting equipment or direct sunlight. 7 VTM-LCD220P 6. Keep the LCD monitor away from sharp object to touch the screen like fingernail and pencil. WARNING: Any unauthorized modification to this equipment could result in the revocation of the authorization to operate the equipment and void the product warranty. 5 Frequently Asked Questions · · · Check the power cord to ensure that it is securely plugged into the monitor base and also into the electrical outlet. Use Power button does not respond Unplug the power cord of the monitor from the AC outlet, wait a few minutes, then to plug the power cord into the AC outlet again. Ensure that the DB-15 signal cable is properly connected to the display card/computer. Check the DB-15 signal cable connector on both ends for bent or pushed-in pins. Unplug the power cord of the monitor from the AC outlet, wait a few minutes, then to plug the power cord into the AC outlet again. Check the DB-15 signal cable to ensure that it is properly attached to the graphics display card. Make sure the computer is not in a power-saving mode (move the mouse or press a key on the keyboard). [. . . ] You may damage the screen, and oil from your skin is difficult to move. The LCD is very delicate. Power - Use the type of power indicated on the marking label. Plugs - Do not remove any of the prongs of the monitor's three-pronged power plug. 9 VTM-LCD220P Disconnect the power plug from the AC outlet under following conditions: If you will not use it for an indefinite period time. If the product does not operate normally when the operation instructions are followed. [. . . ]