Yamaha NS-SW210 - Manual (Page 10)

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Refer to the chart below if 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 an authorized YAMAHA dealer or
service center.
TROUBLESHOOTING
Problem Cause What to Do
Power is not supplied even though the
POWER switch is set to the ON
position. The power plug is not securely
connected. Connect it securely.
No sound. The volume is set to minimum. Raise the volume up.
Speaker cables are not connected
securely. Connect them securely.
Sound level is too low. A source sound with little bass
frequency content is being played. Play a source sound with bass
frequencies.
It is influenced by standing waves. Reposition the subwoofer or break up
parallel surfaces by placing bookshelves,
etc., along the walls.