16 En
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.
TROUBLESHOOTING
Problem Cause What to Do
Power is not supplied even
though the STANDBY/ON switch
is set to 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.
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. Speaker cables are not connected
correctly.
Connect them correctly, that is L (left) to
L, R (right) to R, “+” to “+” and “–” to
“–”.
Setting of the PHASE switch is not
proper.
Set the PHASE switch to the other
position.
A source sound with few bass
frequencies is played.
Play a source sound with bass
frequencies. Set the HIGH CUT control
to a higher position.
It is influenced by standing waves. Reposition the subwoofer or break up
the parallel surface by placing
bookshelves etc. along the walls.
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.
The subwoofer does not turn into
the standby mode automatically.
There is an influence of noise generated
from external appliances etc.
Move the subwoofer farther away from
such appliances and/or reposition the
connected speaker cables. Otherwise, set
the AUTO STANDBY switch to the
OFF position.
The AUTO STANDBY switch is set to
the OFF position.
Set the AUTO STANDBY switch to the
“HIGH” or “LOW” position.
The subwoofer turns into the
standby mode unexpectedly.
The level of input signal is too low. Set the AUTO STANDBY switch to the
“HIGH” position.
The subwoofer turns on
unexpectedly.
There is an influence of noise generated
from external appliances etc.
Move the subwoofer farther away from
such appliances and/or reposition the
connected speaker cables. Otherwise, set
the AUTO STANDBY switch to the
OFF position.
