TROUBLESHOOTING

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

Cause

What to Do

Power is not supplied even though the

The power plug is not securely

Connect it securely.

STANDBY/ON button is set to the ON

connected.

 

position.

 

 

The POWER switch is set to the OFF

Set the POWER switch to the ON

 

 

position.

position.

 

 

 

No sound.

The volume is set to minimum.

Raise the volume up.

 

 

 

 

Speaker cables are not connected

Connect them securely.

 

securely.

 

 

 

 

Sound level is too low.

Speaker cables are not connected

Connect them correctly, that is L (left) to

 

correctly.

L, R (right) to R, “+” to “+” and

 

 

“–” to “–”.

 

 

 

 

Setting of the PHASE switch is not

Set the PHASE switch to the other

 

proper.

position.

 

 

 

 

A source sound with few bass

Play a source sound with bass

 

frequencies is played.

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

The POWER switch is set to the OFF

Set the POWER switch to the ON

automatically.

position.

position.

 

 

 

 

The STANDBY/ON button is set to the

Set the STANDBY/ON button to the ON

 

STANDBY position.

position.

 

 

 

 

The AUTO STANDBY switch is set to

Set the AUTO STANDBY switch to the

 

the OFF position.

“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

There is an influence of noise generated

Move the subwoofer farther away from

standby mode automatically.

from external appliances etc.

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

Set the AUTO STANDBY switch to the

 

the OFF position.

“HIGH” or “LOW” position.

 

 

 

The subwoofer turns into the standby

The level of input signal is too low.

Increase the volume of the amplifier and

mode unexpectedly.

 

set the AUTO STANDBY switch to the

 

 

“HIGH” position.

 

 

 

The subwoofer turns on unexpectedly.

There is an influence of noise generated

Move the subwoofer farther away from

 

from external appliances etc.

such appliances and/or reposition the

 

 

connected speaker cables.

 

 

Otherwise, set the AUTO STANDBY

 

 

switch to the “OFF” position.

 

 

 

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