45
English
B
ASIC OPERA
TION
AD
V
ANCED OPERA
TION
APPENDIX
INTR
ODUCTION
PREP
ARA
TION
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
The unit does not work
normally.
No sound and/or no
picture.
The power cord is not connected or the plug is
not completely inserted.
Firmly connect the power cord.
The IMPEDANCE SELECTOR switch on the
rear panel is not fully set to the right or left
position.
Set the switch fully to the right or left position
when the unit is in the standby mode.
The internal microcomputer has been frozen by
an external electric shock (lightning, excessive
static electricity, etc.) or by a power supply with
low voltage.
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.
The speaker connections are not secure.
Incorrect input or output cable connections.
Connect the cables properly. If the problem
persists, the cables may be defective.
An appropriate input source has not been
selected.
Select an appropriate input source with INPUT
or TAPE/MD MON / EXT. DECODER (or the
input selector buttons).
Secure the connections.
SPEAKERS have not been set properly.
Set SPEAKERS corresponding to the speakers
in use to the ON position.
The sound is muted.
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.
Digital signals other than PCM audio and the
signals encoded with Dolby Digital which this
unit cannot reproduce are being input to this unit
by a CD-ROM, etc.
The sound suddenly
goes off.
The protection circuit has been activated
because of a short circuit, etc.
Set the unit in the standby mode and then turn
on to reset the protection circuit.
The SLEEP timer has functioned.
Turn on the power, and play the source again.
Refer to
page
APPENDIX
Select the appropriate program.
16
—
12, 13
19
14
19
20
—
—
37
14
20
22
25
35
32
—
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.
16
23, 24, 25
Only the speaker on one
side can be heard.
Incorrect cable connections.
Connect the cables properly. If the problem
persists, the cables may be defective.
Incorrect setting of BALANCE.
Adjust it to the appropriate position.
No sound from the effect
speakers.
The sound effect is off.
Press EFFECT to turn it on.
A Dolby Surround or Dolby Digital decoding
DSP program is being used with material not
encoded with Dolby Surround or Dolby Digital.
Select another DSP program.
No sound from the
center speaker.
The sound output level of the center speaker is
set to minimum.
Raise the level of the center speaker.
“CENTER SP” in the SET MENU is set to the
NONE position.
Select the LRG or SML position.
Incorrect DSP program is selected.
The source encoded with Dolby Digital does not
have a center channel signal.
No sound from the rear
speakers.
The output level of the rear speakers is set to
minimum.
Raise the output level of the rear speakers.
A monaural source is being played with the PRO
LOGIC/Normal or PRO LOGIC/ENHANCED
program.
Select another DSP program suitable for the
monaural source.
35
25
0110V39645-50_EN(UCA)
1/12/0, 9:43 AM
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