UB YST-SW315 YST-SW215 Subwoofer System OWNER S MANUAL
+ORQTVCPV 5CHGV[ +PUVTWEVKQP HO 2CIG (TKFC[ /CTEJ 2/ IMPORTANT SAFETY INSTRUCTIONS 1 Read these instructions. 2 Keep these instructions. 3 Heed all warnings. 4 Follow all instructions. 5 Do not use this apparatus near water. 6 Clean only with dry cloth. 7 Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
+ORQTVCPV 5CHGV[ +PUVTWEVKQP HO 2CIG (TKFC[ /CTEJ 2/ FCC INFORMATION (for US customers) We Want You Listening For A Lifetime 1 IMPORTANT NOTICE : DO NOT MODIFY THIS UNIT! This product, when installed as indicated in the instructions contained in this manual, meets FCC requirements. Modifications not expressly approved by Yamaha may void your authority, granted by the FCC, to use the product.
YST-SW315_215_03.25UB.fm Page 1 Tuesday, April 15, 2003 12:05 PM Thank you for selecting this YAMAHA subwoofer system. CAUTION: Read this before operating your unit Please read the following operating precautions before use. YAMAHA will not be held responsible for any damage and/or injury caused by not following the cautions below. • To assure the finest performance, please read this manual carefully. Keep it in a safe place for future reference.
YST-SW315_215_03.25UB.fm Page 2 Tuesday, April 15, 2003 12:05 PM • VOLTAGE SELECTOR (For China, Korea 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. CONTENTS CAUTION ......................................................................1 FEATURES ....................................................................3 SUPPLIED ACCESSORIES ..
YST-SW315_215_03.25UB.fm Page 3 Tuesday, April 15, 2003 12:05 PM FEATURES • This subwoofer system employs Advanced Yamaha Active Servo Technology which Yamaha has developed for reproducing higher quality super-bass sound. (Refer to page 18 for details on Advanced Yamaha Active Servo Technology.) This super-bass sound adds a more realistic, theater-in-the-home effect to your stereo system.
YST-SW315_215_03.25UB.fm Page 4 Tuesday, April 15, 2003 12:05 PM PLACEMENT One subwoofer will have a good effect on your audio system, however, the use of two subwoofers is recommended to obtain more effect. A If using one subwoofer, it is recommended to place it on the outside of either the right or the left main speaker. (See fig. A .) If using two subwoofers, it is recommended to place them on the outside of each main speaker. (See fig. B .) The placement shown in fig.
YST-SW315_215_03.25UB.fm Page 5 Tuesday, April 15, 2003 12:05 PM CONNECTIONS Choose one of the following two connecting methods that is more suitable for your audio system. ■ Choose 1 (pages 5-7) if your amplifier has line output (pin jack) terminal(s) ■ Choose 2 (pages 8-11) if your amplifier has no line output (pin jack) terminal Caution: Unplug the subwoofer and other audio/video components before making connections.
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YST-SW315_215_03.25UB.fm Page 8 Tuesday, April 15, 2003 2:22 PM CONNECTIONS 2 Connecting to speaker output terminals of the amplifier Select this method if your amplifier has no line output (pin jack) terminal. If your amplifier has two sets of main speaker output terminals and both terminals can output sound signals simultaneously.
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YST-SW315_215_03.25UB.fm Page 10 Tuesday, April 15, 2003 12:05 PM CONNECTIONS If your amplifier has only one set of main speaker output terminals. Connect the speaker output terminals of the amplifier to the INPUT1 terminals of the subwoofer, and connect the OUTPUT terminals of the subwoofer to the main speakers.
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YST-SW315_215_03.25UB.fm Page 12 Tuesday, April 15, 2003 12:05 PM CONNECTIONS Connecting to the INPUT1/OUTPUT terminals of the subwoofer For connection, keep the speaker cables as short as possible. Do not bundle or roll up the excess part of the cables. If the connections are faulty, no sound will be heard from the subwoofer or the speakers, or both of them. Make sure that the + and – polarity markings of the speaker cables are observed and set correctly.
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YST-SW315_215_03.25UB.fm Page 14 Tuesday, April 15, 2003 12:05 PM CONTROLS AND THEIR FUNCTIONS 1 Power indicator Lights up in green while the subwoofer is on. Lights up in red while the subwoofer is set in the standby mode by the operation of the automatic powerswitching function. Goes off when the subwoofer is set in the standby mode. 7 POWER switch Normally, set this switch to the ON position to use the subwoofer.
YST-SW315_215_03.25UB.fm Page 15 Tuesday, April 15, 2003 12:05 PM AUTOMATIC POWER-SWITCHING FUNCTION If the source being played is stopped and the input signal is cut off for 7 to 8 minutes, the subwoofer automatically switches to the standby mode. (When the subwoofer switches to the standby mode by the automatic powerswitching function, the power indicator lights up in red.) When you play a source again, the power of the subwoofer turns on automatically by sensing audio signals input to the subwoofer.
YST-SW315_215_03.25UB.fm Page 16 Tuesday, April 15, 2003 12:05 PM ADJUSTING THE SUBWOOFER BEFORE USE Before using the subwoofer, adjust the subwoofer to obtain the optimum volume and tone balance between the subwoofer and the main speakers by following the procedures described below. 1 2 3 Set the VOLUME control to minimum (0). Turn on the power of all the other components.
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YST-SW315_215_03.25UB.fm Page 18 Tuesday, April 15, 2003 12:05 PM ADVANCED YAMAHA ACTIVE SERVO TECHNOLOGY The theory of Yamaha Active Servo Technology has been based upon two major factors, the Helmholtz resonator and negative-impedance drive. Active Servo Processing speakers reproduce the bass frequencies through an “air woofer”, which is a port or opening in the speaker’s cabinet. This opening is used instead of, and performs the functions of, a woofer in a conventionally designed speaker system.
YST-SW315_215_03.25UB.fm Page 19 Tuesday, April 15, 2003 12:05 PM TROUBLESHOOTING Refer to the chart below when this unit does not function properly. If the problem you are experiencing is not listed below or if the instructions given below do not help, disconnect the power cord and contact your authorized YAMAHA dealer or service center. Problem Cause What to Do Power is not supplied even though the STANDBY/ON button is set to the ON position. The power plug is not securely connected.
YST-SW315_215_03.25UB.fm Page 20 Tuesday, April 15, 2003 12:05 PM SPECIFICATIONS Type ........ Advanced Yamaha Active Servo Technology Driver .....25 cm (10”) cone woofer (JA2564) Magnetic shielding type .......20 cm (8”) cone woofer (JA2165) Magnetic shielding type Power Consumption ..................................................... 80W ..................................................... 95W Standby Power Consumption ...............................0.
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