E-4SD-AT50ENGLISHDX-AT50General Information- Precautions -Precautions" General! Please ensure that the subwoofer/amplifier unit is positioned in a well-ventilatedarea and that there is at least 4" (10 cm) of free space along the sides and back.There must also be a minimum of 6" (15 cm) of free space on the top of thesubwoofer/amplifier unit.! Use the system on a firm, level surface free from vibration.! Keep the system away from direct sunlight, strong magnetic fields, excessive dust,humidity and electronic/electrical equipment (home computers, facsimiles, etc.)which generates electrical noise.! Do not place anything on top of the components.! Do not expose the system to moisture, to temperatures higher than 140°F (60°C)or to extremely low temperatures.! If your system does not work properly, disconnect the AC power cord from the ACoutlet. Plug the AC power cord back in, and then turn on your system.! In case of an electrical storm, unplug the DVD player and the subwoofer/amplifierunit for safety.! Hold the AC power plug by the head when removing it from the AC outlet, as pull-ing the cord can damage internal wires.! Do not remove the outer cover, as this may result in electric shock. Referinternal service to your local SHARP service facility.! This system should only be used within the range of 41°F - 95°F (5°C - 35°C).Warning:The voltage used must be the same as that specified on this system. Using this prod-uct with a higher voltage other than that which is specified is dangerous and mayresult in a fire or other type of accident causing damage. SHARP will not be heldresponsible for any damage resulting from use of this system with a voltage otherthan that which is specified.Caution:! During use the DVD player and the subwoofer/amplifier unit will get warm, do nottouch warm areas of the DVD player and the subwoofer/amplifier unit for pro-longed periods to avoid damage to you or the DVD player and the subwoofer/amplifier unit.! This system is equipped with special function which protects amplifier circuit fromdamages. When it is activated, sound switch is turned off. In this case, set theDVD player and the AV control unit to the stand-by mode and turn it on again." Volume controlThe sound level at a given volume setting depends on speaker efficiency, locationand various other factors. It is advisable to avoid exposure to high volume levels,which occurs while turning the system on with the volume control setting up high, orwhile continually listening at high volumes." Care of DVD/CD discsDVD/CD discs are fairly resistant to damage, however mistracking can occur due toan accumulation of dirt on the disc surface. Follow the guidelines below for maximumenjoyment from your DVD/CD collection and player.! Do not write on either side of the disc, particularly the non-label side from whichsignals are read. Do not mark this surface.! Keep your discs away from direct sunlight, heat, and excessive moisture.! Always hold the DVD/CDs by the edges. Fingerprints, dirt, or water on the DVD/CDs can cause noise or mistracking. If a DVD/CD is dirty or does not play prop-erly, clean it with a soft, dry cloth, wiping straight out from the center, along theradius.4" (10 cm) 4" (10 cm)6" (15 cm)4" (10 cm)! This subwooer/amplifier unit is fitted with a coolingfan at the rear for improved cooling. Do not cover theopening in this section with any obstacles.Cooling fanNO YESCorrect