5.2 GBRHV input Timing �XGA Pattern �SMPTE (DVD Disk) The ideal environment to adjust the brightness value is in the dark room. Offset-R, Offset-G, Offset-B Adjust the ADC Offset-R, Offset-G, Offset-B value to make the left column to darkest, to get the best brightness result. There is no adjustment for contrast, use the default value.