I am looking for a. I am looking for a schematic of the pin-out of the power supply for a

Question

I am looking for a schematic of the pin-out of the power supply for a ViewSonic VG900 or VG900b monitor.I have a good power supply for the unit but the wrong connector on the end of the cord. Need to replace the connector, a 4 pin unit, but first I need to know which pin is hot and which is not.