Precautions for useCautions when transportingf When transporting the projector, hold it securely by its bottom and avoid excessive vibration and impacts. Doing so maydamage the internal parts and result in malfunctions.f Do not transport the projector with the adjustable feet extended. Doing so may damage the adjustable feet.Cautions when installingr Do not set up the projector outdoors.f The projector is designed for indoor use only.r Do not use under the following conditions.f Places where vibration and impacts occur such as in a car or vehicle: Doing so may damage the internal parts and result inmalfunctions.f Near the exhaust of an air conditioner: Depending on the conditions of use, the screen may fluctuate in rare cases dueto the heated air from the air exhaust port or the hot or cooled air. Make sure that the exhaust from the projector or otherequipment, or the air from the air conditioner does not blow toward the front of the projector.f Places with sharp temperature fluctuations such as near lights (studio lamps): Doing so may shorten the life of the lamp, orresult in deformation of the outer case due to heat, which may cause malfunctions.The operating environment temperature of the projector should be between 0 °C (32 °F) and 40 °C (104 °F) when using it atelevations lower than 1 200 m (3 937') above sea level*1, and between 0 °C (32 °F) and 30 °C (86 °F) when using it at highaltitudes (between 1 200 m (3 937') and 2 700 m (8 858') above sea level).*1 When the operating environment temperature of the projector is between 35 °C (95°F) and 40 °C (104 °F), the lamp mode will changeto [ECO] automatically.f Near high-voltage power lines or near motors: Doing so may interfere with the operation of the projector.r Be sure to ask a specialized technician when installing the product to a ceiling.This requires an optional ceiling mount bracket. Be sure to use the Projector Mount Bracket together with the ceiling mountbracket for high ceilings or low ceilings.Model No.:① ET-PKL100H (for high ceilings), ET-PKV400B (Projector Mount Bracket)② ET-PKL100S (for low ceilings), ET-PKV400B (Projector Mount Bracket)r Qualified cable is required for DIGITAL LINK connection, be sure to consult a specialized technician or yourdealer.Imperfect wiring may cause poor performance of cable transmission, such as distorted or choppy image and sound.r The projector may not work properly due to strong radiowave from the broadcast station or the radio.If there is any facility or equipment, which outputs strong radiowave, near the installation location, install the projector at alocation sufficiently far from the source of the radiowave. Or, wrap the LAN cable connected to the terminal by using a piece of metal foil or a metal pipe, of which is grounded at both ends.r Focus adjustmentThe projection lens is thermally affected by the light from the light source, making the focus unstable in the period just afterswitching on the power. It is recommended that the images are projected continuously for at least 30 minutes before the focusis adjusted.r Do not install the projector at elevations of 2 700 m (8 858') or higher above sea level.Failure to do so may shorten the life of the internal parts and result in malfunctions.r Do not tilt the projector or place it on its side.Do not tilt the projector body more than approximately ±30 degrees vertically or ±15 degrees horizontally. Over tilting mayresult in shortening the life of the components.Within 15°Within 15°Within 30°Within 30°ENGLISH - 17Chapter 1 Preparation - Precautions for use