Yamaha RX-V640RDS EN - Manual (Page 56)

54
Problem
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.
No sound from the
subwoofer.
Poor bass
reproduction.
Cause
Incorrect cable connections.
The sound effect is switched 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.
A digital signal with a sampling
frequency greater than 48 kHz is input to
this unit.
The output level of the center speaker is
set to minimum.
“SOUND 1A CENTER” on the set menu
is set to NON.
One of the Hi-Fi DSP programs (1 to 4)
has been selected (except for 6ch Stereo).
The source encoded with a Dolby Digital
or DTS signal 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
program 9.
“SOUND 1E BASS” on the set menu is
set to MAIN when a Dolby Digital or
DTS signal is being played.
“SOUND 1E BASS” on the set menu is
set to SWFR or MAIN when a 2-channel
source is being played.
The source does not contain low bass
signals (90 Hz and below).
“SOUND 1E BASS” on the set menu is
set to SWFR or BOTH and your system
does not include a subwoofer.
The speaker mode settings (main, center,
rear, or rear center) on the set menu does
not match your speaker configuration.
Remedy
Connect the cables properly. If the problem persists,
the cables may be defective.
Press STEREO/EFFECT to turn it on.
Select another DSP program.
Raise the level of the center speaker.
Select the appropriate mode for your center speaker.
Select another DSP program.
Raise the output level of the rear speakers.
Select another DSP program.
Select SWFR or BOTH.
Select BOTH.
Select MAIN.
Select the appropriate position for each speaker based
on the size of the speakers in your configuration.
Refer to
page
16
–
25 – 30
–
50
41
25 – 30
–
50
25 – 30
42
42
–
42
41 – 42
TROUBLESHOOTING
0110RX-V640_51-59_EN-GB.p65 03.2.12, 4:56 PM 54