IndexDeclaration of conformity ............................................................................................................................. English-1Important Information ................................................................................................................................... English-2WARNING, CAUTION ........................................................................................................................ English-2Declaration ................................................................................................................................................... English-2Safety Precautions, Maintenance & Recommended Use ............................................................................ English-3Contents ....................................................................................................................................................... English-4Installation .................................................................................................................................................... English-5Parts Name and Functions .......................................................................................................................... English-7Control Panel ...................................................................................................................................... English-7Terminal Panel .................................................................................................................................... English-8Wireless Remote Control ................................................................................................................... English-10Operating Range for the Remote Control ........................................................................................... English-11Handling the remote control ........................................................................................................... English-11Setup ............................................................................................................................................................ English-12Connections ................................................................................................................................................. English-14Wiring Diagram ................................................................................................................................... English-14Connecting a Personal Computer ...................................................................................................... English-15Connecting a DVD Player with HDMI out ........................................................................................... English-15Connecting a Computer with DisplayPort ........................................................................................... English-15Basic Operation ........................................................................................................................................... English-16Power ON and OFF Modes ................................................................................................................ English-16Power Indicator .................................................................................................................................. English-17Using Power Management ................................................................................................................. English-17Selecting a video source .................................................................................................................... English-17Picture Aspect .................................................................................................................................... English-17Information OSD ................................................................................................................................. English-18Picture Mode ...................................................................................................................................... English-18OSD (On-Screen-Display) Controls ............................................................................................................. English-19PICTURE ............................................................................................................................................ English-20ADJUST ............................................................................................................................................. English-20AUDIO ................................................................................................................................................ English-21SCHEDULE ........................................................................................................................................ English-21PIP ...................................................................................................................................................... English-22OSD .................................................................................................................................................... English-22MULTI DISPLAY ................................................................................................................................. English-23DISPLAY PROTECTION .................................................................................................................... English-24ADVANCED OPTION ......................................................................................................................... English-25Remote Control Function ............................................................................................................................. English-28Controlling the LCD monitor via RS-232C Remote Control ......................................................................... English-30Controlling the LCD monitor via LAN Control .............................................................................................. English-31Features ....................................................................................................................................................... English-34Troubleshooting ........................................................................................................................................... English-35Specifications - P401 ................................................................................................................................... English-36Specifications - P461 ................................................................................................................................... English-37Specifications - P521 ................................................................................................................................... English-38Specifications - P551 ................................................................................................................................... English-39Pin Assignment ............................................................................................................................................ English-40Manufacturer’s Recycling and Energy Information ...................................................................................... English-41www.necdisplaysolutions.com