Troubleshooting - Yamaha NS-SW901 Manual De Instrucciones

Refer to the chart below when 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 your authorized Yamaha dealer or
service center.
Problem
Power is not supplied even though
the STANDBY/ON switch is
pressed.
No sound.
Sound level is too low.
The remote control does not
work.
This unit is not turned on with the
remote control of the amplifier.
(when setting "Operating the
power of this unit using the
remote control of your
amplifier")
The household breaker goes off.
An object has fallen into the port.
Notes
• When an excessive level of signal is input to this unit for 5 to 15 minutes, the POWER indicator starts flashing to alarm
you of the danger of damaging the power amplifier and speaker of this unit. If the signal input lasts for 5 minutes more,
this unit turns into the standby mode automatically.
• When an enormous amount of signal is input, the power of this unit is turned off immediately. To turn on this unit again,
press STANDBY/ON switch on the front panel.
17
En

TROUBLESHOOTING

Cause
The power plug is not securely connected.
The POWER switch is set to the OFF
position.
The volume is set to the minimum (0).
Speaker cables are not connected securely.
The signals from the amplifier are too low.
The signal from the subwoofer output
terminal of the amplifier is not output.
Speaker cables are not connected correctly.
Setting of the phase is not proper.
A source sound with few bass frequencies is
being played.
It is influenced by standing waves.
Wrong distance or angle.
Direct sunlight or lighting from an inverter
type of fluorescent lamp etc. is striking the
remote control sensor of this unit.
The batteries are weak.
There are obstacles between the remote
control signal receiver on the unit and the
remote control.
Wrong distance or angle.
This unit consumes much electricity when a
high level signal is input to this unit.
Do not try to remove the object. Attempting
to remove the object may cause a
malfunction.
Remedy
Connect it securely.
Set the POWER switch to the ON
position.
Raise the volume.
Connect them securely.
Increase the volume of the amplifier or the
component connected to the amplifier.
Check the speaker mode setting on the
amplifier.
Connect them correctly, that is L (left) to
L, R (right) to R, "+" to "+" and
"–" to "–".
Set the phase to the other position.
Play a source sound with bass
frequencies.
Set the H-CUT to a higher position.
Relocate the subwoofer or change its
positioning angle.
Use the remote control within a maximum
range of 6 m and no more then 30 degrees
off-axis from the front panel.
Reposition this unit.
Replace all batteries.
Remove the obstacles.
Place this unit within the operating range
of the remote control of the amplifier.
Turn down the volume on the amplifier
etc. connected to this unit or cut off the
power of other unused equipment.
Contact an authorized Yamaha dealer or
service center.