User Manual1ContentsImportant information ..................................................................................................................... 2Safety warning .......................................................................................................................... 2Notes ........................................................................................................................................ 3Introduction to the product ............................................................................................................. 4Product appearance ................................................................................................................. 4Performance feature ................................................................................................................ 4Connecting external device .............................................................................................................. 5Illustration of the main menu .......................................................................................................... 5Main menu ............................................................................................................................... 5PC menu ................................................................................................................................... 6Audio menu .............................................................................................................................. 7Picture menu ............................................................................................................................ 7Function menu ......................................................................................................................... 7OSD menu ................................................................................................................................ 8Geometry menu ....................................................................................................................... 8Channel selection ..................................................................................................................... 8The way of cleaning .......................................................................................................................... 9Trouble shooting .............................................................................................................................. 9Trouble shooting ways...................................................................................................................... 9