Yamaha YST-SW150 Owner's Manual - Page 12
TROUBLESHOOTING, Active Servo Processing Subwoofer System - active subwoofer
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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. 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. 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. SPECIFICATIONS YST-SW150 Type Active Servo Processing Subwoofer System Speaker Unit 20 cm (7-7/8") cone woofer (JA2156) magnetic-shield type x 2 Amplifier Output 120W/5 ohms High-Cut Filter 40 Hz-140 Hz (-24 dB/oct.) Frequency Response 20 Hz-160 Hz (-10 dB) Power Supply U.S.A. and Canada models AC 120V, 60 Hz Australia model AC 240V, 50 Hz U.K. and Europe models AC 230V, 50 Hz General model AC 110/120/220/240V, 50/60 Hz Power Consumption 130W Dimensions (W x H x D 252 mm x 620 mm x 418 mm (9-15/16" x 24-7/16" x 16-7/16") Weight 18 kg (39 lbs. 10 oz.) * Please note that all specifications are subject to change without notice. YST-SW80 Type Active Servo Processing Subwoofer System Speaker Unit 20 cm (7-7/8") cone woofer (JA2157) magnetic-shield type Amplifier Output 85W/5 ohms High-Cut Filter 50 Hz-150 Hz (-24 dB/oct.) Frequency Response 23 Hz-170 Hz (-10 dB) Power Supply U.S.A. and Canada models AC 120V, 60 Hz Australia model AC 240V, 50 Hz U.K. and Europe models AC 230V, 50 Hz General model AC 110/120/220/240V, 50/60 Hz Power Consumption 100W Dimensions (W x H x D 252 mm x 485 mm x 366 mm (9-15/16" x 19-1/8" x 14-7/16") Weight 12.3 kg (27 lbs. 1 oz.) * Please note that all specifications are subject to change without notice. YAMAHA ELECTRONICS CORPORATION, USA 6660 ORANGETHORPE AVE., BUENA PARK, CALIF. 90620, U.S.A. YAMAHA CANADA MUSIC LTD. 135 MILNER AVE., SCARBOROUGH, ONTARIO M1S 3R1, CANADA YAMAHA ELECTRONIK EUROPA G.m.b.H. SIEMENSSTR. 22-34, 25462 RELLINGEN BEI HAMBURG, F.R. OF GERMANY YAMAHA ELECTRONIQUE FRANCE S.A. RUE AMBROISE CROIZAT BP70 CROISSY-BEAUBOURG 77312 MARNE-LA-VALLEE CEDEX02, FRANCE YAMAHA ELECTRONICS (UK) LTD. YAMAHA HOUSE, 200 RICKMANSWORTH ROAD WATFORD, HERTS WD1 7JS, ENGLAND YAMAHA SCANDINAVIA A.B. J A WETTERGRENS GATA 1, BOX 30053, 400 43 VÄSTRA FRÖLUNDA, SWEDEN YAMAHA MUSIC AUSTRALIA PTY, LTD. 17-33 MARKET ST., SOUTH MELBOURNE, 3205 VIC., AUSTRALIA VT 52880 Printed in Malaysia