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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.
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.
TROUBLESHOOTING
SPECIFICATIONS
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-SW150
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.
YST-SW80
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