[. . . ] Replacement and mounting of an AC plug on the power supply cord of this unit should be performed only by qualified service personnel. This appliance is supplied with a moulded three pin mains plug for your safety and convenience. Should the fuse need to be replaced, please ensure that the replacement fuse has a rating of 10 amps and that it is approved by ASTA or BSI to BS1362. If the plug contains a removable fuse cover, you must ensure that it is refitted when the fuse is replaced. [. . . ] 300 W (RMS) power with D class amplifier that serves audio and video software playback such as Dolby* Digital with a wide dynamic range. Equipped with 30 cm driver Crossover frequency can be set to 50 Hz, 60 Hz, 70 Hz, 80 Hz, 100 Hz, 120 Hz, 160 Hz, 200 Hz. The frequency characteristics of the S-LX70W/S-81W-MK combined with small-size speakers are shown below. The effect of an additional S-LX70W/ S-81W-MK in an ordinary listening room is better than the chart indicates when positioned adequately. Power cable x 1 Polishing cloth x 1 Warranty card x 1 Operating instructions With playback of Dolby* Digital, establishment of a special channel for the subwoofer is recommended; and with playback of LFE (Low Frequency Effect: sound effect like the rumbling of the earth, whose purpose is to intensify the force of the video), the S-LX70W/ S-81W-MK is especially effective. This is because it has 5 channels in the 20 Hz to 20 kHz frequency range (front left and right, center, and rear left and right) and an independent channel for the subwoofer. To avoid interference with the picture on a nearby TV set, use magnetically shielded speaker systems. This is particularly important for the center speaker since it is usually located closest to the TV. Position the left and right channel speakers at equal distances from the TV set and approximately 1. Install the center speaker above or below the TV so that the sound of the center channel is localized at the TV screen. The rear (surround) speakers are most effective when installed in parallel locations directly to the side, or slightly behind, the listener, at a level about 1 meter above the listener's ears. When installing the center speaker on top of the TV, be sure to secure it with tape or some other suitable means. Otherwise, the speaker may fall from the TV due to external shocks such as earthquakes, and it may lead to endangering those nearby or damaging the speaker. Install the unit in a well-ventilated location where it will not be exposed to high temperatures and high humidity. Do not place the unit near stoves or other heating equipment or at locations exposed to direct sunlight, as these can have an adverse effect on the cabinet and internal components. Also, do not install the unit where there is too much dust or high humidity, as these can cause malfunctioning or breakdowns. (Avoid cooking tables and other locations where the unit would be exposed to heat, steam and soot. ) · Do not place heavy or large objects on top of the speaker. Doing so could provoke the speaker to fall, causing damages or bodily injury. If speakers fall from their installation locations, they may suffer irreparable cracks in their finish. Keep the unit away from devices such as cassette decks which are sensitive to magnetic fields. However, depending on the installation location, color distortion may occur if the speaker system is installed extremely close to the screen of a television set. [. . . ] SYMPTOM 1 No power is being supplied (Indicator does not light up when power switch is turned on. Turn the amplifier's output level (volume, bass control, bass boost) counterclockwise to lower the level. Increase the distance between the AM or FM antenna (for indoor use) and this unit. Specifications and design subject to possible modification without notice, due to improvements. [. . . ]