User manual YAMAHA YST-SW012

[. . . ] • Do not use force on switches , controls , or connection wires. When moving the unit, first disconnect the power plug and the wires connected to other equipments. €¢ When not planning to use this unit for a long period (i. ), disconnect the AC power plug from the wall outlet. [. . . ] wARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK , DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE. As long as this unit is connected to the AC wall outlet, it is not disconnected from the AC power source even if you turn off this unit by POWER. This unit features a magnetically shielded design, but there is still a chance that placing it too close to a TV set might impair picture color. Should this happen, move this unit away from the TV set. Customers If the socket outlets in the home are not suitable for the plug supplied with this appliance, it should be cut off and an appropriate 3 pin plug fitted. For details, refer to the following instructions. Note: The plug severed from the mains lead must be destroyed, as a plug with bared flexible cord is hazardous if engaged in a live socket outlet. MODEL IMPORTANT: THE WIRES IN MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE: Blue: NEUTRAL Brown: LIVE As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows: The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK. The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED. Making sure that neither core is connected to the earth terminal of the three pin plug. €¢ VOLTAGE SELECTOR (For China, Korea, Asia and General models) The voltage selector switch on the rear panel of this unit must be set for your local main voltage BEFORE plugging this unit into the AC main supply. voltages are 110–120/220–240 V AC , 50/60 Hz. Table of contents Precautions: Read this before operating this unit . 3 Connecting components and the subwoofer to AC power . 7 1 Introduction Features • This subwoofer system employs Advanced Yamaha Active Servo Technology II which Yamaha has developed for reproducing higher quality super-bass sound. (Refer to page 5 for details on Advanced Yamaha Active Servo Technology II) This super bass sound adds a more realistic, theater-in-the-home effect to your stereo system. €¢ This subwoofer system is equipped with a linear port unique to Yamaha that provides smooth bass response during playback, minimizing extraneous noise not included in the original input signal. Supplied accessories Please confirm that the following item is included in the package. Non-skid pads (1 set, 4 pieces) Subwoofer cable (5 m) Positioning the subwoofer It is recommended to place it on the outside of either the right or the left front speaker. B is also possible, however, if the subwoofer system is placed directly facing the wall, the bass effect may lessen because the sound from it and the sound reflected by the wall may cancel out each other. To prevent this from happening, face the subwoofer system at an angle as in fig. Use the non-skid pads Put the provided non-skid pads at the four corners on the bottom of the subwoofer to prevent the subwoofer from moving by vibrations etc. [. . . ] Yamaha developed a new circuit design combining negative-impedance and constant-current drives, which provides a more stable performance and clear bass reproduction without any murkiness. English Cabinet High-amplitude bass sound Port Air woofer (Helmholtz resonator) Advanced impedance Converter Active Servo Processing Amplifier Signals Signals of low amplitude 5 Troubleshooting Refer to the chart below if the unit does not function properly. If the problem you are experiencing is not listed, or if the instructions fail to help you resolve the problem, disconnect the power cord and contact your authorized Yamaha dealer or service center. Problem Power is not supplied even though the POWER switch is set to the ON position. [. . . ]