Yamaha SW-3 SPECIFICATIONS, TROUBLESHOOTING, work, Type, CAUSE, REMEDY, SYMPTOM, No sound, Impedance, unexpectedly, unexpectedly, POWER switch is ON, Frequency Response

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.

English

SYMPTOM	CAUSE	REMEDY
Power is not supplied even though the	The power plug is not securely connected.	Connect it securely.
POWER switch is ON.
No sound.	The VOLUME control is set to 0.	Turn the VOLUME control to right.
	Speaker cables are not connected securely.	Connect them securely.
Sound level is too low.	Speaker cables are connected incorrectly.	Connect them correctly, that is to say L (left)
		to L, R (right) to R, “+” to “+” and “–” to “–”.
	Setting of the PHASE switch is not proper.	Set the switch to the other position.
	A source sound with few bass frequencies is	Play a source sound with bass frequencies.
	played.	Set the HIGH CUT control to a higher
		position. (Turn the knob to right.)
	It is influenced by standing waves.	Re-position the subwoofer or break up the
		parallel surface by placing bookshelves etc.
		along the walls.
Automatic power ON function will not	The POWER switch is turned off.	Turn the POWER switch on.
work.
	The level of input signal is too low.	Increase the level of input signal on the
		source.
Automatic power OFF function will work	The level of input signal is too low.	Increase the level of input signal on the
unexpectedly.		source.
Automatic power ON function will work	An influence of noise generated from	Move this unit farther away from such
unexpectedly.	external digital equipment etc.	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
Weight.....................................................	(14-1/2” x 18-1/8” x 15-3/16”)
	17.4 kg (38 lbs. 4 oz.)
Accessorie ................................................	Rubber pads (1 set)

*Please note that all specifications are subject to change without notice.

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