Yamaha NS-P20 Owner's Manual page 9

• If you replace the front speakers (NS-B20) with
other speakers, you will need to re-adjust the
subwoofer's volume.
If this product doesn't work as expected, look for a possible cause below. If the issue you are experiencing is not
listed, or you cannot resolve it after reading through these instructions, disconnect the power cable and contact an
authorized Yamaha dealer or service center.
• Front, surround speakers (NS-B20) and center speaker (NS-C20)
Issue Possible cause Remedy
There's no sound. The speaker cables are not Make sure the speaker cables are connected properly.
connected properly.
The sound is very quiet. The speaker cables are not Make sure the speaker cables are connected properly:
connected properly. L (left) to L, R (right) to R, "+" to "+" and "-" to "-".
• Subwoofer (NS-SW20)
Issue Possible cause Remedy
The POWERswitch is set The power cable is not connected Set the POWER switch to OFF, then make sure the power
to ON but the subwoofer properly, cable is connected properly.
doesn't work.
There's no sound. The VOLUME control is set to O. Turn up the VOLUME control.
The subwoofer cable is not Make sure the subwoofer cable is connected properly.
connected properly.
The subwoofer is too The source material doesn't Try playing source material that contains more bass.
quiet, contain nmch bass.
Bass sounds are being cancelled Reposition the subwoofer, or break up parallel wall surfaces
out by standing waves, by placing bookshelves or other large objects along the wall.
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