If the external monitor/ projector is not automatically detected and displaying an image, you will need to use a function key to enable or activate the function. Laptop manufacturers have different methods to activate an external monitor. Refer to the laptop's user guide/manual or the manufacturer for instructions to activate the video port for...
Each product has its own list of compatible video, audio and image formats. The best way to know what file type is specifically supported by your product is to look in the user guide for your particular model.
Parts can be purchased from our parts store. Go to https://www.viewsonic.com/parts/
Open the projector Menu and go to System Setting: Basic> Projector Position and choose one of the four available options: Front Table Rear Table Ceiling Front Ceiling