Yamaha RX-SL80 owner manual For the Subwoofer SW-P240 only, Problem Cause What to Do

Troubleshooting

Refer to the chart below if the unit does not function properly. If the problem you are experiencing is not listed, or if the instructions fail to help you resolve the problem, 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 the speaker cables securely.
	securely.
Sound level is too low.	Speaker cables are not connected	Connect the speaker cables correctly:
	correctly.	L (left) to L, R (right) to R, “+” to “+”
		and “–” to “–”.

For the Subwoofer (SW-P240) only

Problem	Cause	What to Do
Power is not supplied even though the	The power plug is not securely	Turn the power switch OFF, then
POWER switch is set to the ON position.	connected.	connect the power plug securely.
No sound.	The VOLUME control is set to 0.	Turn the VOLUME control to the
		right (clockwise).
	Speaker cables are not connected	Connect the speaker cables securely.
	securely.
Sound level is too low.	Speaker cables are not connected	Connect the speaker cables correctly:
	correctly.	L (left) to L, R (right) to R, “+” to “+”
		and “–” to “–”.
	You are playing a sound source that	Play a sound source that includes
	includes inadequate bass frequencies.	more bass frequencies.
	The sound level has been diminished	Reposition the subwoofer, or break
	by standing waves.	up the parallel wall surface by
		placing bookshelves or other large
		objects along the wall.

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