Yamaha RX-V557 User Manual
Page 81
77
TROUBLESHOOTING
ADDITIONAL
INFO
RMA
T
IO
N
Problem
Cause
Remedy
Refer to
page
The sound suddenly
goes off.
The protection circuitry has been activated
because of a short circuit, etc.
Check that the impedance selector setting is correct.
Check that the speaker wires are not touching each
other and then turn this unit back on.
—
The sleep timer has turned the unit off.
Turn on the power, and play the source again.
—
The sound is muted.
Press MUTE to cancel a mute.
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 balance settings in SET MENU.
Adjust the SP LEVEL settings.
Only the center
speaker outputs
substantial sound.
When playing a monaural source with a
CINEMA DSP program, the source signal
is directed to the center channel, and the
front and surround speakers output effect
sounds.
No sound from the
effect speakers.
The sound field programs are turned off.
Press STRAIGHT (EFFECT) to turn them on.
You are using a source or program
combination that does not output sound
from all channels.
Try another sound field program.
No sound from the
center speaker.
The output level of the center speaker is
set to minimum.
Raise the level of the center speaker.
“CENTER” in SET MENU is set to
NONE.
Select the appropriate setting for the center speaker.
One of the HiFi DSP programs (except for
6ch Stereo) has been selected.
Try another sound field program.
No sound from the
surround speakers.
The output level of the surround speakers
is set to minimum.
Raise the output level of the surround speakers.
“SUR. LR” in SET MENU is set to
NONE.
Select the appropriate setting for the surround left and
right speakers.
A monaural source is being played with
STRAIGHT.
Press STRAIGHT (EFFECT) to turn on the sound
fields.
—
No sound from the
surround back
speaker.
“SUR. LR” in SET MENU is set to
NONE.
If the surround left and right speakers are set to
NONE, the surround back speaker setting is
automatically set to NONE. Select the appropriate
setting for the surround speakers.
“SUR. B” in SET MENU is set to NONE.
Select LRG or SML.
No sound from the
subwoofer.
“BASS OUT” in SET MENU is set to
FRONT when a Dolby Digital or DTS
signal is being played.
Select SWFR or BOTH.
“BASS OUT” in SET MENU is set to
SWFR or FRONT when a 2-channel
source is being played.
Select BOTH.
The source does not contain low bass
signals.