I have an Infocus pv820, but no power supply. I would like to make my own PS or buy one, however I have not been able to find a pin-out for the factory power supply. Is there anyone out there with an Infocus PV820? If you have one and would be willing to do some quick testing with a voltmeter please contact me. If you have one for sale I would be very interested. My Infocus accepts a 4 pin power supply plug. Please help me. Thanks for your time.