User manual NEC DT20

[. . . ] Multi-Function LCD Projector DT20 User's Manual English Deutsch Français Italiano Española Svenska Thank you for purchasing the NEC DT20 LCD Projector. Please read this manual carefully in order to use the projector properly. After reading this, please keep it in a safe place together with the warranty sheet. Features · Three handy features in a single body. Documents, catalogs and other printed matter can be projected directly from the scanner. [. . . ] Doing so may cause the main unit to slip or fall down, resulting in accidents or failures. · Vent A on the bottom of the main unit takes in air to cool the inside of the projector. As air is taken in by large suction force, cloth or paper may be sucked in against the vent. If this happens, the temperature inside may build up, and cause an accident or failure. · The rubber feet may soil the installation surface depending on where the projector is installed. E-18 How to Install the Projector Projection Distance and Projected Image Size Use the following diagrams to determine the projected image size and the type of screen required for any given projector location. · The projection distance that provides good focusing is 1. 4 m (1. 5 yd) to 13. 9 m (15. 2 yd) from the front of the lens. Install the projector within this range. Horizontal Dimension Vertical Dimension Projection Distance (1. 43 m to 13. 9 m/1. 5 yd to 15. 2 yd) 300 610 x 457 250 508 x 381 Projected Image Size 200 406 x 305 Wide 150 305 x 229 Tele 100 203 x 152 Wide: The largest image that can be projected by adjusting the image with the zoom lens. Tele: The smallest image that can be projected by adjusting the image with the zoom lens. Projected Image Size 50 (inch) 102 x 76 (cm) Width x Height 1 3 7 5 Projection Distance 9 11 13 13. 9 (m) CAUTION Installation location · Do not install the projector in excessively hot or cold locations. The ambient temperature should be within 0°C to 35°C (32°F to 95°F). · Position the projector so that the screen does not directly receive sunlight or other light from other lighting. Otherwise, the projected image becomes white and is difficult to view. In a bright room, use a curtain or other means to darken the area around the screen. · Do not install the projector where it will be subject to excessive humidity, dust, or cigarette smoke. Otherwise, image quality may deteriorate as dirt builds up on the lens, mirrors and other optical components. · Do not install the projector in a small room with poor air circulation or any place where the air vents may be blocked. Temperature build-up inside the projector may result in fire or a failure. (Vents are located on the bottom and right side of the projector. ) E-19 Typical Installation 1. Select the installation site Place the projector on an even and stable surface such as a table. ;; ;; ;; ;; ;; ;; POWER 2. Connect the power cord (supplied), and press the button. ) button (or POWER 3. Turn the direction of the lens so that it is perpendicular to the screen. ;;; ;;; ;;; ;;; ;;; ;;; 90° ;;; ;;; ;;; ;;; ;;; ;;; Turn the unit to the left or right so that the top and bottom lines of the projected image are parallel. Adjustable feet 4. Adjust the adjustable feet to move the projected image to the desired height. (Adjust the tilt angle between 0° to 7°. ) The position of the projected image can be moved up or down by adjusting tilt. E-20 How to Install the Projector Compensating Keystone If the projected image is distorted, you can eliminate the distortion by doing keystone compensation. How to Compensate Keystone Press the button (or the button on the remote controller) to display the "Keystone menu. " KEYSTONE Keystone Hor izontal Ver tical MENU SET 0 0 Set standard Quit KEYSTONE Keystone menu Press the button to make the top of the projected image narrower. button to make the Press the bottom of the projected image narrower. u Press the v button to make the left side of the projected image narrower. Press the u button to make the right side of the projected image narrower. u MENU MENU button (or the Press the compensation). NOTE button on the remote controller) to return to "0" (No · When keystone compensation is performed, the resolution at the edges of the projected image is reduced, making small characters difficult to read. [. . . ] This, in turn, may reduce lamp life or cause the projector to malfunction. The air filter should be cleaned regularly (about once a month if the projector is used four hours a day). Replace with a new air filter if it is difficult to remove dust and dirt from the air filter. Procedure 1 Remove the air filter. To remove the air filter, press down on the claw on the air filter while pulling it outwards. 2 Vacuum the sponge to take off dust. Vacuum the outside surface of the sponge as shown in the illustration. 3 Mount the air filter. Follow step 1 in reverse order. Press it in until you hear a "click" sound. CAUTION Caring for the Air Filter and Cautions · Do not wash the air filter with water or other liquids. [. . . ]