Yamaha NS-P436, NS-P430, NX-430P, NX-C430 TROUBLESHOOTING, Cause, Cause, Problem, Problem, No sound, No sound, What to Do, What to Do, unexpectedly, For YST-SW015, automatically, Sound level is too low

TROUBLESHOOTING

Refer to the chart below when this unit does not function properly. If the problem you are experiencing is not listed below or if the instructions given below do not help, disconnect the power cord and contact your authorized YAMAHA dealer or service center.

Problem	Cause	What to Do
No sound.	Speaker cables are not connected	Connect them securely.
	securely.
Sound level is too low.	Speaker cables are not connected	Connect them correctly, that is L (left) to
	correctly.	L, R (right) to R, “+” to “+” and “–” to “–”.

For YST-SW015

Problem	Cause	What to Do
Power is not supplied even	The power plug is not securely	Connect it securely.
though the STANDBY/ON button	connected.
is set to the ON position.
	The POWER switch is set to the OFF	Set the POWER switch to the ON
	position.	position.
No sound.	The VOLUME control is set to 0.	Turn the VOLUME control to the right.
	Speaker cables are not connected	Connect them securely.
	securely.
Sound level is too low.	Speaker cables are not connected	Connect them correctly, that is L (left) to
	correctly.	L, R (right) to R, “+” to “+” and “–” to “–”.
	Setting of the PHASE switch is not	Set the switch to the other position.
	proper.
	A source sound with few bass	Play a source sound with bass
	frequencies is played.	frequencies.
		Set the HIGH CUT control to a higher
		position.
	It is influenced by standing waves.	Reposition the subwoofer or break up
		the parallel surface by placing
		bookshelves etc. along the walls.
The subwoofer does not turn on	The POWER switch is set to the OFF	Set the POWER switch to the ON
automatically.	position.	position.
	The STANDBY/ON button is set to the	Set the STANDBY/ON button to the ON
	OFF position.	position.
	The AUTO STANDBY switch is set to	Set the AUTO STANDBY switch to the
	the OFF position.	“HIGH” or “LOW” position.
	The level of input signal is too low.	Set the AUTO STANDBY switch to the
		“HIGH” position.
The subwoofer does not turn into	There is an influence of noise	Move the subwoofer further away from
the standby mode automatically.	generated from external appliances etc.	such appliances and/or reposition the
		connected speaker cables.
		Otherwise, set the AUTO STANDBY
		switch to the “OFF” position.
	The AUTO STANDBY switch is set to	Set the AUTO STANDBY switch to the
	the OFF position.	“HIGH” or “LOW” position.
The subwoofer turns into the	The level of input signal is too low.	Set the AUTO STANDBY switch to the
standby mode unexpectedly.		“HIGH” position.
The subwoofer turns on	There is an influence of noise	Move the subwoofer farther away from
unexpectedly.	generated from external appliances etc.	such appliances and/or reposition the
		connected speaker cables.
		Otherwise, set the AUTO STANDBY
		switch to the “OFF” position.

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