7EnglishTroubleshootingRefer to the chart below if the unit does not function properly. If the problem you are experiencing is notlisted, or if the instructions fail to help you resolve the problem, disconnect the power cord and contact yourauthorized Yamaha dealer or service center.Problem Cause RemedyPower is not supplied even though thePOWER switch is set to the ON position.The power plug is not securelyconnected.Turn the power switch OFF, thenconnect the power plug securely.No sound. The VOLUME control is set to 0. Turn the VOLUME control to theright (clockwise).A subwoofer cable is not connectedsecurely.Connect a subwoofer cable securely.Sound level is too low. You are playing a sound source thatincludes inadequate bass frequencies.Play a sound source that includesmore bass frequencies.The sound level has been diminishedby standing waves.Reposition the subwoofer, or breakup the parallel wall surface byplacing bookshelves or other largeobjects along the wall.The input signal is too small. Turn up the volume.No signal from the subwoofer outputterminal of the component.Check the speaker mode setting onthe component.