Yamaha SW-3 Owner's Manual - Page 13
Troubleshooting - subwoofer specifications
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English TROUBLESHOOTING If the unit fails to operate normally, check the following points to determine whether the fault can be corrected by the simple measures suggested. If it cannot be corrected, or if the fault is not listed in the SYMPTOM column, disconnect the power cord and contact your authorized YAMAHA dealer or service center for help. SYMPTOM Power is not supplied even though the POWER switch is ON. No sound. Sound level is too low. Automatic power ON function will not work. Automatic power OFF function will work unexpectedly. Automatic power ON function will work unexpectedly. CAUSE The power plug is not securely connected. The VOLUME control is set to 0. Speaker cables are not connected securely. Speaker cables are connected incorrectly. Setting of the PHASE switch is not proper. A source sound with few bass frequencies is played. It is influenced by standing waves. The POWER switch is turned off. The level of input signal is too low. The level of input signal is too low. An influence of noise generated from external digital equipment etc. REMEDY Connect it securely. Turn the VOLUME control to right. Connect them securely. Connect them correctly, that is to say L (left) to L, R (right) to R, "+" to "+" and "-" to "-". Set the switch to the other position. Play a source sound with bass frequencies. Set the HIGH CUT control to a higher position. (Turn the knob to right.) Re-position the subwoofer or break up the parallel surface by placing bookshelves etc. along the walls. Turn the POWER switch on. Increase the level of input signal on the source. Increase the level of input signal on the source. Move this unit farther away from such equipment and/or change the position of connected speaker cables. Otherwise, do not use the automatic power ON function of this unit. SPECIFICATIONS Type Active Servo Processing Subwoofer System Speaker Unit 25 cm (9-13/16") cone woofer Frequency Response 25 Hz-200 Hz (-10 dB) High-Cut Filter 50 Hz-150 Hz (-24 dB/oct.) Impedance INPUT 1 4.7 k-ohms INPUT 2 10 k-ohms Amplifier Output 100W/5 ohms Power Supply AC 120V, 60 Hz Power Consumption 130W Dimensions (W x H x D 368 mm x 460 mm x 386 mm (14-1/2" x 18-1/8" x 15-3/16") Weight 17.4 kg (38 lbs. 4 oz.) Accessorie Rubber pads (1 set) * Please note that all specifications are subject to change without notice. 13