Hitachi CP-A300N User Manual - Page 7

Setting up Setting up Install the projector according to the environment and manner the projector will be used in. Arrangement Refer to the illustrations and tables below to determine screen size and projection distance. The values shown in the table are calculated for a full size screen: 1024 x 768 a Screen size (diagonal) b Projection distance (±8%) c1 , c2 Screen height (±8%) • On a horizontal surface a c2 a Screen size (diagonal) type(inch) m 60 1.5 b c1 Projection distance Screen height m inch m inch 0.096 3.8 0.281 11.1 c2 Screen height m inch 1.196 47.1 70 1.8 0.161 6.3 0.317 12.5 1.384 54.5 c1 80 2.0 0.225 8.9 0.352 13.9 1.571 61.9 90 2.3 0.289 11.4 0.387 15.2 1.759 69.2 b 100 2.5 0.353 13.9 0.423 16.6 1.947 76.6 • Mounted on the wall or ceiling b c1 a c2 • If the projector is used at an altitude of about 1600 m or higher, set FAN SPEED of the SERVICE item in the OPTION menu to HIGH (&58). Otherwise, set it to NORMAL. If the projector is used with a wrong setting, it may cause damage to the projector itself or the parts inside. • F or the case of installation in special conditions such as on the wall or ceiling, the specified mounting accessories and service may be required. Before installing the projector, consult your dealer about your installation. • The screen position may shift after installation if the projector is mounted on locations such as the wall or ceiling, due to the flexibility of the plastic projector body. If readjustment is necessary, consult with your dealer or service personnel. • The projected image position and/or focus may change during warm-up (approx. 30 minutes after the lamp is turned on) or when the ambient conditions change. Readjust the image position and/or focus as necessary. • Since the projector features an ultra short throw, be aware that it is required to select a screen carefully to have better performance. - A soft screen such as a pull-down screen may cause serious distortion of a projected image. A hard screen such as a board screen is recommended for use with this projector. - A high-gain screen such as a bead screen that has narrow viewing angle is not suitable for this projector. A low-gain screen (around 1.0) such as a matte screen that has wide viewing angle is recommended for use with this projector. - A screen with a weave pattern may cause moiré on the projected image, which is not a failure of the projector. A screen that has less moiré effects is recommended for use with this projector. (continued on next page) 7