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

Set the switch fully to the upper or

 

after the power has been turned on.

 

on the rear panel is not fully set to the

lower end when the unit is in the

 

 

 

 

upper or lower end.

standby mode.

 

 

 

 

 

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 and operate

 

 

voltage.

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.

 

 

 

 

 

 

An appropriate input source has not

Select an appropriate input source with

 

 

been selected.

INPUT or TAPE/MD MON / EXT.

 

 

 

DECODER.

 

 

 

 

 

 

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.

 

 

 

 

 

 

 

Digital signals other than PCM audio

Play a source whose signals this unit

Amplifier

 

and Dolby Digital or DTS encoded

can reproduce.

 

signals which this unit cannot

 

 

 

 

 

 

reproduce are input to this unit by

 

 

 

playing a CD-ROM etc.

 

 

 

 

 

 

No picture.

There is no S video terminal connection

Connect this unit’s S VIDEO MONITOR

 

 

between this unit and the TV, although

OUT terminal to the TV’s S video input

 

 

S video signals are input to this unit.

terminal.

 

 

 

 

 

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.

 

 

 

 

 

 

The SLEEP timer has functioned.

Turn on the power, and play the source

 

 

 

again.

 

 

 

 

 

Only the speakers on one side can

Incorrect setting of BALANCE.

Adjust it to the appropriate position.

 

be heard.

 

 

 

Incorrect cord connections.

Connect the cords properly. If the

 

 

 

 

 

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.

 

 

 

 

 

42