TROUBLESHOOTING

Refer to the chart below if this unit does not function properly. If the problem you are experiencing is not listed below or if the instructions below do not help, set this unit to the standby mode, disconnect the power cord, and contact the nearest authorized YAMAHA dealer or service center.

■ General

Problem

Cause

Remedy

See

page

 

 

 

 

 

 

 

This unit fails to turn

The power supply cord is not connected or

Connect the power supply cord firmly.

—

on.

the plug is not completely inserted.

 

 

 

 

 

 

 

 

The impedance setting is incorrect.

Set the impedance to match your speakers.

16

 

 

 

 

 

The protection circuitry has been activated

Check that the speaker wires are not touching each

12

 

because of a short circuit, etc.

other and then turn the power of this unit back on.

 

 

 

 

 

 

 

The IMPEDANCE SELECTOR switch on

Set the IMPEDANCE SELECTOR switch to either

16

 

the rear panel is not set to either end.

end when the power of this unit is turned off.

 

 

 

 

 

 

 

This unit has been exposed to a strong

Set this unit to the standby mode, disconnect the

—

 

external electric shock (such as lightning

power supply cord, plug it back in after 30 seconds,

 

or strong static electricity).

then use it normally.

 

 

 

 

 

No sound

Incorrect input or output cable

Connect the cables properly. If the problem persists,

13

 

connections.

the cables may be defective.

 

 

 

 

 

 

 

No appropriate input source has been

Select an appropriate input source with the INPUT

18

 

selected.

selector on the front panel (or one of the input

 

 

selector buttons on the remote control).

 

 

 

 

 

 

The SPEAKERS A/B switches are not set

Turn on the corresponding SPEAKERS A or

18

 

properly.

SPEAKERS B.

 

 

 

 

 

 

 

Speaker connections are not secure.

Secure the connections.

12

 

 

 

 

The sound suddenly

The protection circuitry has been activated

Check that the IMPEDANCE SELECTOR setting is

16

goes off.

because of a short circuit, etc.

correct.

 

 

 

 

 

 

 

Check that the speaker wires are not touching each

12

 

 

other and then turn the power of this unit back on.

 

 

 

 

 

 

 

Only the speaker on

Incorrect cable connections.

Connect the cables properly. If the problem persists,

12, 13

one side can be

 

the cables may be defective.

 

 

heard.

 

 

 

Incorrect setting for the BALANCE

Set the BALANCE control to the appropriate

20

 

 

control.

position.

 

 

 

 

 

 

There is a lack of bass

The + and – wires are connected in

Connect the speaker wires to the correct + and –

12

and no ambience.

reverse at the amplifier or the speakers.

phase.

 

 

 

 

 

A “humming” sound

Incorrect cable connections.

Connect the audio plugs firmly. If the problem

13

can be heard.

 

persists, the cables may be defective.

 

 

 

 

 

 

 

No connection from the turntable to the

Make the GND connection between the turntable and

13

 

GND terminal.

this unit.

 

 

 

 

 

 

The volume level is

The record is being played on a turntable

The turntable should be connected to this unit through

—

low while playing a

with an MC cartridge.

the MC head amplifier.

record.

 

 

 

 

 

 

 

The volume level

The component connected to the MD/

Turn on the power of the component.

 

cannot be increased,

TAPE OUT jacks of this unit is turned off.

 

—

or the sound is

 

 

 

 

 

distorted.

 

 

 

 

 

 

 

46