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APPENDIX
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
The unit fails to turn on
when STANDBY/ON is
pressed, or enters in the
standby mode soon after
the power has been
turned on.
The unit does not work
normally.
No sound and/or no
picture.
No picture.
The sound suddenly
goes off.
Only the speaker on one
side can be heard.
No sound from the effect
speakers.
No sound from the
center speaker.
No sound from the rear
speakers.
50
TROUBLESHOOTING
CAUSE
The power cord is not connected or the plug is
not completely inserted.
The IMPEDANCE SELECTOR switch on the
rear panel is not fully set to the right or left
position.
The internal microcomputer has been frozen by
an external electric shock (lightning, excessive
static electricity, etc.) or by a power supply with
low voltage.
Incorrect input or output cable connections.
An appropriate input source has not been
selected.
The speaker connections are not secure.
SPEAKERS have not been set properly.
The sound is muted.
Digital signals other than PCM audio and the
signals encoded with Dolby Digital or DTS
which this unit cannot reproduce are being input
to this unit by a CD-ROM, etc.
There is no S VIDEO connection between this
unit and the TV monitor, although S video
signals are being input to this unit.
The protection circuit has been activated
because of a short circuit, etc.
The SLEEP timer has functioned.
Incorrect cable connections.
Incorrect setting of BALANCE.
The sound effect is off.
A Dolby Surround, Dolby Digital or DTS
decoding DSP program is being used with
material not encoded with Dolby Surround,
Dolby Digital or DTS.
The sound output level of the center speaker is
set to minimum.
"CENTER SP" in the SET MENU is set to the
NONE position.
Incorrect DSP program is selected.
The source encoded with Dolby Digital or DTS
does not have a center channel signal.
The output level of the rear speakers is set to
minimum.
A monaural source is being played with the PRO
LOGIC/Normal or PRO LOGIC/ENHANCED
program.
REMEDY
Firmly connect the power cord.
Set the switch fully to the right or left position
when the unit is in the standby mode.
Set the unit in the standby mode and disconnect
the AC power cord from the AC power outlet.
After about 30 seconds have passed, connect
the power and operate the unit again.
Connect the cables properly. If the problem
persists, the cables may be defective.
Select an appropriate input source with INPUT
SELECTOR or TAPE/MD MON / EXT.
DECODER (or the input selector buttons).
Secure the connections.
Set SPEAKERS corresponding to the speakers
in use to the ON position.
Set VOLUME to the "m" position, press
MUTE to cancel a mute and adjust the volume.
Play a source whose signals this unit can
reproduce.
Connect the monitor's "S" video input terminal
to this unit's S VIDEO MONITOR OUT
terminal.
Set the unit in the standby mode and then turn
on to reset the protection circuit.
Turn on the power, and play the source again.
Connect the cables properly. If the problem
persists, the cables may be defective.
Adjust it to the appropriate position.
Press EFFECT to turn it on.
Select another DSP program.
Raise the level of the center speaker.
Select the LRG or SML position.
Select the appropriate program.
Raise the output level of the rear speakers.
Select another DSP program suitable for the
monaural source.
Refer to
page
17
17
—
12, 13
20
15
20
21
—
14
—
42
15
21
24
27
40
37
25, 26, 27
—
40
27
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Table of Contents
Troubleshooting
