TROUBLESHOOTING

If the unit fails to operate normally, check the following points to determine whether the fault can be corrected by the simple measures suggested. If it cannot be corrected, or if the fault is not listed in the SYMPTOM column, disconnect the power cord and contact your authorized YAMAHA dealer or service center for help.

 

SYMPTOM

CAUSE

REMEDY

 

 

 

 

 

The unit fails to turn on when

The power cord is not plugged in or the

Firmly plug in the power cord.

 

STANDBY/ON is pressed, or set in

plug is not completely inserted.

 

 

the standby mode suddenly soon

 

 

 

The IMPEDANCE SELECTOR switch

Slide the switch fully to the upper or

 

after the power has been turned on.

 

on the rear panel is not fully set at the

lower end.

 

 

 

 

upper or lower end.

 

 

 

 

 

 

The unit does not work normally.

The internal microcomputer has been

Set the unit in the standby mode and

 

 

frozen by an external electric shock

disconnect the AC power cord from the

 

 

(lightning, excessive static electricity,

AC outlet. After about 30 seconds have

 

 

etc.) or by a power supply with low

passed, connect the power cord and

 

 

voltage.

operate the unit again.

 

 

 

 

 

No sound or no picture.

Incorrect output cord connections.

Connect the cords properly. If the

 

 

 

problem persists, the cords may be

 

 

 

defective.

 

 

 

 

 

 

Appropriate program source has not

Select an appropriate program source

 

 

been selected.

by INPUT.

 

 

 

 

 

 

SPEAKERS have not been set

Set SPEAKERS corresponding to the

 

 

properly.

speakers in use to the ON position.

 

 

 

 

 

 

The speaker connections are not

Secure the connections.

 

 

secure.

 

 

 

 

 

 

The sound suddenly goes off.

The protection circuit has been

Set the unit in the standby mode and

 

 

activated because of a short circuit, etc.

then switch on again to reset the

 

 

 

protection circuit.

Amplifier

sound.

 

 

Incorrect cord connections.

Connect the cords properly. If the

 

 

The SLEEP timer has functioned.

Cancel the SLEEP timer.

 

Only one side speaker outputs

Incorrect setting of BALANCE.

Adjust it to the appropriate position.

 

 

 

problem persists, the cords may be

 

 

 

defective.

 

 

 

 

 

A “humming” sound can be heard.

Incorrect cord connections.

Firmly connect the audio plugs. If the

 

 

 

problem persists, the cords may be

 

 

 

defective.

 

 

 

 

 

 

No connection from the turntable to the

Make the GND connection between the

 

 

GND terminal.

turntable and this unit.

 

 

 

 

 

The volume level is low while playing

The record is being played on a

The turntable should be connected to

 

a record.

turntable with an MC cartridge.

the unit through the MC head amplifier.

 

 

 

 

 

The volume level cannot be

The component connected to the REC

Turn on the power to the component.

 

increased, or the sound is distorted.

OUT terminals of this unit is in the

 

 

 

standby mode.

 

 

 

 

 

 

No sound from the effect speakers.

The sound effect is set off.

Press EFFECT to turn it on.

 

 

 

 

 

 

A Dolby Surround decoding program is

Use a different sound field program.

 

 

being used with material not encoded

 

 

 

with Dolby Surround.

 

 

 

 

 

 

No sound from the rear speakers.

The sound output level of the rear

Raise the sound output level of the rear

 

 

speakers is set to minimum.

speakers.

 

 

 

 

 

 

A monaural sound source is being

Select another sound field program

 

 

played in the DOLBY PRO LOGIC or

suitable for the monaural sound source.

 

 

DOLBY PRO LOGIC ENHANCED

 

 

 

program.

 

 

 

 

 

English

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