-48-■ Prism P.B.S. adjustment■ Polarizer adjustmentR, G and B polarizer adjustment :1. Turn on a projector. And input the blackraster signal(0% of white raster signal.)2. Loosen two screws-A on the polarizer unitwhich you intend to adjust using ball allenwrench.3. Block the lights of the color which do notadjust using light block sheets.4. Move the lever-B in the direction of an arrowand adjust the brightness on the screen to thelowest level of black.5. Tighten the two screws-A to fix the polarizerunit.6. Adjust the polarizer of other colors.Y/VSCREW-BSLOT-ASCREW-BY/VLEVER-BSCREW-ASCREW-AAdjustment :1. Remove the flexible cables of LCD panels from theassembly Main. And turn on the projector.2. Loosen two screws-B.3. Insert a slot screwdriver into slot-A, turn it andadjust the center position of screen to maximumbrightness.4. Tighten the two screws-B to fix the prism PBS unit.