-59-Optical Adjustment3. Contrast adjustment1 Select the internal test pattern signal "All black" from the projector's menu "Menu -> Setting -> Test pattern".2 Loosen 1 screw A on the polarized glass mounting base and 1 screw c on the optical filter(HCP) mounting base.3 Turn the polarized glass mounting base with lever B to obtain the darkest brightness and proper black color uni-formity on the screen.4 Turn the optical filter(HCP) mounting base with lever d to obtain the darkest brightness and proper black coloruniformity on the screen.5 Tighten the screws A and c to fix the optical filter and polarized glass mounting base.Repeat steps 1 to 5 for remaining R and B contrast adjustment.The adjustment should be taken in order of G-panel, R-panel and B-panel.DCA B
