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Yamaha NS-SW300 Manual

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14 En
English
Refer to the chart below if this unit does not function properly.
If the instructions given below do not help, or if the problem you are experiencing is not listed below, turn off the power to the unit, 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
STANDBY/ON switch
is set the ON position.
The power plug is not securely
connected.
Connect it securely.
The POWER switch is set to the
OFF position.
Set the POWER switch to the
ON position.
The subwoofer does
not turn on
automatically via the
system connection.
The system control cable is not
connected properly or securely.
Connect the system control
cable properly.
The POWER switch is set to
OFF.
Set the POWER switch to ON.
No sound. The volume is set to minimum. Increase the volume.
Speaker cables are not
connected securely.
Connect speaker cables securely.
Low range sound is too
soft or not heard.
Speaker cables are not
connected correctly.
Connect them correctly, that is L
(left) to L; R (right) to R; “+” to
“+” and “–” to “–”.
The PHASE switch is not set
correctly.
Set the PHASE switch to the
other position.
A source sound with little bass
frequency content is being
played.
Play a source sound with bass
frequencies.
Set the HIGH CUT control to a
higher position.
The sound is influenced by
standing waves.
Relocate the subwoofer or
change its positioning angle.
No bass frequency content is
being output from the amplifier.
Check the bass output setting of
the amplifier.
The subwoofer does
not turn on
automatically.
The POWER switch is set to the
OFF position.
Set the POWER switch to the
ON position.
The STANDBY/ON switch is
set to the STANDBY position.
Set the STANDBY/ON switch
to the ON position.
The AUTO STANDBY switch
is set to the OFF position.
Set the AUTO STANDBY
switch to the HIGH or LOW
position.
The level of input signal is too
low.
Set the AUTO STANDBY switch
to the HIGH position, and increase
the output level of the amplifier.
No bass frequency content is
being output from the amplifier.
Check the bass output setting of
the amplifier.
The subwoofer does
not enter standby
mode automatically.
Noise generated from external
appliances etc., is activating the
subwoofer.
Move the subwoofer farther away
from such appliances, and/or
reposition the connected speaker
cables.
Set the AUTO STANDBY switch
to the HIGH or LOW position.
The AUTO STANDBY switch is
set to the OFF position.
Set the AUTO STANDBY
switch to the HIGH or LOW
position.
The subwoofer enters
standby mode
unexpectedly.
The level of input signal is too
low.
Set the AUTO STANDBY
switch to the HIGH position, and
increase the output level of the
amplifier.
The subwoofer turns
on unexpectedly.
Noise generated from external
appliances etc., is activating the
subwoofer.
Move the subwoofer farther
away from such appliances, and/
or reposition the connected
speaker cables.
If the AUTO STANDBY switch
is set to HIGH, set it to LOW.
Alternatively, set the AUTO
STANDBY switch to the OFF
position.
An object has fallen
into the port.
Do not try to remove the object.
Attempting to remove the
object may cause a malfunction.
Contact an authorized
YAMAHA dealer or service
center.
Problem Cause What to Do
… 17 …


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