Full details are below.
Click here to go to a separate web page for more information. It is a handy device to adjust projection size and offset, and to correct for off-axis projection distortions such as keystoning and shear. They both have DB-25 input connectors, so they look identical. UGC circuit boards are sold to laserists who build the board into their own projectors, or into a complete system. A UGC box or circuit board manufactured after August 1 2000.