Yamaha RX-V665 Owner's Manual page 67

Problem
No sound is heard This unit is in the "STRAIGHT" mode
from the surround
and a monaural source is being played
speakers. back.
Sound may not be output from certain
channels depending on input sources or
sound field programs.
No sound is heard "LFE/Bass Out" of "A)Config" in
from the subwoofer. "Speaker Setup" of the setup menu
(Speaker Setup→Manual
Setup→A)Config) is set to "Front" when
a Dolby Digital, DTS or AAC signal is
being played.
"LFE/Bass Out" of "A)Config" in
"Speaker Setup" of the setup menu
(Speaker Setup→Manual
Setup→A)Config) is set to "SWFR" or
"Front" when a 2-channel source is being
played.
The source does not contain low
frequency signals.
No sound is heard "Extended Surround" in the OPTION
from the surround menu is set to "Off," or an input signal
back speakers.
does not contain a surround back flag with
"Extended Surround" set to "Auto."
The audio input
The connected component is not set to
sources cannot be output the desired digital audio signals.
played in the desired
digital audio signal
format.
Noise/hum noise is Incorrect cable connection.
heard.
A DTS-CD is being played back.
"Memory Guard!" is "Memory Guard" in "Set Menu" is set to
displayed and the "On."
setting cannot be
changed.
This unit does not The internal microcomputer is frozen due
operate properly.
to an external electric shock (such as
lightning or excessive static electricity) or
by a drop in power supply voltage.
Cause
Press MSTRAIGHT or the kSTRAIGHT on the
remote control to turn off the "STRAIGHT" mode.
Try another sound field program.
Set "LFE/Bass Out" to "SWFR" or "Both."
Set "LFE/Bass Out" to "Both."
Set "Extended Surround" other than "Off" or "Auto."
Set the playback component properly referring to its
operating instructions.
Connect the audio cables properly. If the problem
persists, the cables may be defective.
1) When only noise is output
If a DTS bitstream signal is not properly input to this
unit, only noise is output. Connect the playback
component to this unit by digital connection and play
back the DTS-CD. If the condition is not improved,
the problem may results from the playback
component. Consult the manufacturer of the playback
component.
2) When noise is output during playback or skip
operation
Before playing back the DTS-CD, display the option
menu after selecting the input source and set
"Decoder Mode" to "DTS."
Set "Memory Guard" to "Off."
Disconnect the power cable from the AC wall outlet,
wait about 30 seconds and then plug it in again.
Troubleshooting
Remedy
See
page
28
25
52
52
44
—
—
15, 44
56
—
63
En