Troubleshooting; Specifications - Yamaha SW-2 Owner's Manual

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.

SPECIFICATIONS

Type .....................Active Servo Processing Subwoofer System
Speaker Unit...................................20 cm (7-7/8") cone woofer
Frequency Response ..........................30 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 ...................................................50W/5 ohms
12
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.
A source sound with few bass frequencies is
played.
It is influenced by standing waves.
Power Supply ..................................................AC 120V, 60 Hz
Power Consumption..........................................................50W
Dimensions (W x H x D) .............320 mm x 400 mm x 340 mm
Weight ........................................................12 kg (26 lbs. 6 oz.)
* Please note that all specifications are subject to change
without notice.
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 "–".
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.
(12-5/8" x 15-3/4" x 13-3/8")