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.

■ General

SYMPTOM

CAUSE

REMEDY

Refer to

page

 

 

 

 

 

 

 

The unit fails to turn on

The power cord is not connected or the plug is

Firmly connect the power cord.

13

when STANDBY/ON

not completely inserted.

 

 

(POWER) is pressed, or

 

 

 

The IMPEDANCE SELECTOR switch on the

Set the switch fully to the right or left position

13

enters in the standby

rear panel is not fully set to the right or left

when the unit is in the standby mode.

 

mode soon after the

 

position.

 

 

power has been turned

 

 

 

 

 

on.

 

 

 

 

 

 

 

The unit does not work

The internal microcomputer has been frozen by

Set the unit in the standby mode and disconnect

—

normally.

an external electric shock (lightning, excessive

the AC power cord from the AC power outlet.

 

 

static electricity, etc.) or by a power supply with

After about 30 seconds have passed, connect the

 

 

low voltage.

power and operate the unit again.

 

 

 

 

 

No sound and/or no

Incorrect input or output cable connections.

Connect the cables properly. If the problem

9, 10

picture.

 

persists, the cables may be defective.

 

 

 

 

 

 

An appropriate input source has not been

Select an appropriate input source with INPUT

16

 

selected.

SELECTOR or TAPE/MD MON / 6CH INPUT

 

 

 

(or the input selector buttons).

 

 

 

 

 

 

The speaker connections are not secure.

Secure the connections.

11

 

 

 

 

 

The sound is muted.

Set VOLUME to the “ m” position, press

17

 

 

MUTING to cancel a mute and adjust the

 

 

 

volume.

 

 

 

 

 

 

Digital signals other than PCM audio and the

Play a source whose signals this unit can

—

 

signals encoded with Dolby Digital or DTS

reproduce.

 

 

which this unit cannot reproduce are being input

 

 

 

to this unit by a CD-ROM, etc.

 

 

 

 

 

 

No picture.

There is no S VIDEO connection between this

Connect the monitor’s “S” video input terminal

11

 

unit and the TV monitor, although S video

to this unit’s S VIDEO MONITOR OUT

 

 

signals are being input to this unit.

terminal.

 

 

 

 

 

The sound suddenly

The protection circuit has been activated because

Set the unit in the standby mode and then turn

—

goes off.

of a short circuit, etc.

on to reset the protection circuit.

 

 

 

 

 

 

The SLEEP timer has functioned.

Turn on the power, and play the source again.

31

 

 

 

 

Only the speaker on one

Incorrect cable connections.

Connect the cables properly. If the problem

11

side can be heard.

 

persists, the cables may be defective.

 

 

 

 

 

No sound from the effect

The sound effect is off.

Press EFFECT to turn it on.

20

speakers.

 

 

 

A Dolby Surround, Dolby Digital or DTS

Select another DSP program.

24

 

 

decoding DSP program is being used with

 

 

 

material not encoded with Dolby Surround,

 

 

 

Dolby Digital or DTS.

 

 

 

 

 

 

 

The 96-kHz sampling 24-bit digital signals are

 

19

 

input to this unit.

 

 

 

 

 

 

E-32