Sony SRXT420 User Manual (SRX-T420 user manual) - Page 44
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Overview 1 Chapter Chapter 1 Overview Precautions On safety • Operate the unit on 200 V to 240 V AC, 50/60 Hz. • Should any liquid or solid object fall into the cabinet, unplug the unit and have it checked by your Sony dealer before operating it further. • Set the power switch to the lower position if it is not to be used for several days. • The unit is not disconnected from the AC power source (mains) as long as it is connected to the wall outlet and the power switch is set to the upper position. • Do not look into the lens while the lamp is on. • Do not place your hand or objects near the ventilation holes. The air coming out is hot. • Use a lifter to carry the projector to avoid accidents or injury. • Do not catch your finger between the unit and surface of the floor when moving the projector installed on the floor. • Be careful not to catch your finger in the cooling fan. • Since an intense light has come out of this projector from the front, do not stand on the front of a projector for a long time. On installation • Allow adequate air circulation to prevent internal heat build-up. Do not place the unit on surfaces (rugs, blankets, etc.) or near materials (curtains, draperies) that may block the ventilation holes. Leave space of more than 100 cm (39 3/8 inches) between the wall and the projector. Be aware that room heat rises to the ceiling; check that the temperature near the installation location is not excessive. • Install the projector on the floor or hang it from the ceiling. Any other installation causes a malfunction such as color irregularity or a shorten lamp life. • Do not install the unit in a location near heat sources such as radiators or air ducts, or in a place subject to direct sunlight, excessive dust or humidity, mechanical vibration or shock. • To avoid moisture condensation, do not install the unit in a location where the temperature may rise rapidly. On illumination • To obtain the best picture, the front of the screen should not be exposed to direct lighting or sunlight. • Ceiling-mounted spot lighting is recommended. Use a cover over fluorescent lamps to avoid lowering the contrast ratio. • Cover any windows that face the screen with opaque draperies. • It is desirable to install the projector in a room where floor and walls are not of light-reflecting material. If the floor and walls are of reflecting material, it is recommended that the carpet and wall paper be changed to a dark color. On preventing internal heat build-up After turning off the power, the cooling fan runs for about 3 to 15 minutes by detecting an internal temperature while the MAIN and LAMP indicators flash green. Caution The projector is equipped with ventilation holes (intake) at the right side, and ventilation holes (exhaust) at the upper and left sides. Do not block or place anything near these holes, or internal heat build-up may occur, causing picture degradation or damage to the projector. On cleaning • To keep the cabinet looking new, periodically clean it with a soft cloth. Stubborn stains may be removed with a cloth lightly dampened with a mild detergent solution. Never use strong solvents, such as thinner, benzene, or abrasive cleansers, since these will damage the cabinet. • Avoid touching the lens. To remove dust on the lens, use a soft dry cloth. Do not use a damp cloth, detergent solution, or thinner. 44 Precautions