User manual HITACHI 8 SERIES

[. . . ] The distance of projection may not allow focusing on the peripheral area of the screen. Adjust the focus to keep the center and the peripheral area of the screen balanced. The zoom lens may cause some distortion of the image on the screen depending on the zoom position. [. . . ] The inside of the LCD projector has areas of high voltage which can cause electrical shock. Before replacing the lens, be sure to turn off and unplug the LCD projector, and allow at least 45 minutes for the projector to fully cool. Before replacing the lens, be sure to turn off and unplug the LCD projector, and allow at least 45 minutes for the projector to fully cool. Do not replace the lens while the projector is suspended from the ceiling. This symbol on the product or on its packaging means that your electrical and electronic equipment should be disposed at the end of life separately from your household wastes. For more information, please contact the local authority or the dealer where you purchased the product. For safety, do work in accordance with the Exchange Manual to install this product. Please read this manual and manuals for the LCD projector to be used thoroughly to ensure correct usage through understanding. When transporting the lens, protect the lens by attaching the lens cap. do not touch the lens to prevent fog or dirt of the lens that cause deterioration of display quality. Carefully handle the lens without subjecting it to shocks or vibrations. When resting the lens on a surface, place the lens face down on a soft cloth. When replacing the lens, do not touch the LCD panels or polariz-ing plates of the LCD projector or subject them to shocks. It can also cause a misalignment of the optical adjustment and, therefore, require readjustments. [. . . ] * The projection distances for screen sizes 16:10, 16:9 and 4:3 can be obtained by the following formulas depending on the panel aspect ratio. For panel aspect ratio 4:3 For screen size 16:9: Projection distance = (K1) x 0. 8171 x diagonal screen size + (K2) For panel aspect ratio 17:10 For screen size 16:10: Projection distance = (K1) x 1. [. . . ]