Yamaha RX-V3900 Owner's Manual page 130

Troubleshooting
Problem
No sound is heard
from the subwoofer.
No sound is heard
from the surround
back speakers.
The audio input
sources cannot be
played in the desired
digital audio signal
format (Desired input
source indicator or
decoder indicator in
the front panel
display does not light
up).
A humming sound is
heard.
The volume level is
low while a record is
being played.
The volume level
cannot be increased,
or the sound is
distorted.
A source cannot be
recorded by the
recording component.
126
En
Cause
"Bass Out" in "Configuration" is set to
"Front" when a Dolby Digital or DTS
signal is being played.
"Bass Out" in "Configuration" is set to
"SWFR" or "Front" when a 2-channel
source is being played.
The source does not contain low-
frequency signals.
"Surround Back" in "Configuration" is set
to "None".
While this unit is in the CINEMA DSP 3D
mode, no sound is output at the surround
back speakers.
The connected component is not set to
output the desired digital audio signals.
Audio input jack select is set to
"ANALOG".
Incorrect cable connections.
No connection from the turntable to the
GND terminal.
The record is being played on a turntable
with an MC cartridge.
The component connected to the AUDIO
OUT (REC) jacks of this unit is turned
off.
The audio source connected to the MULTI
CH INPUT jacks of this unit cannot be
recorded.
A given input source is not output at the
same output channel (e.g. DVR IN to
DVR OUT).
You are trying to record a DTS source.
(DTS signal is a digital bitstream.
Attempting to record the DTS bitstream
digitally will result in noise being
recorded.)
Remedy
Set "Bass Out" to "SWFR" or "Front + SWFR".
Set "Bass Out" to "Front + SWFR".
Check whether "Surround" is set to "Small" or
"Large" and configure "Surround Back" properly.
Make an appropriate setting following the operating
instructions for your component.
Set the audio input jack select to "AUTO".
Connect the audio cables firmly. If the problem
persists, the cables may be defective.
Connect the grounding cable of the turntable to the
GND terminal of this unit.
Connect your turntable to this unit through an MC-
head amplifier.
Turn on the power of the component.
Connect the recording component to another channel
that is not being used for connecting the source
component.
Make a setting so that the analog signal will be output
from your DTS-compatible player and then connect
the DTS-compatible player to the AUDIO IN jacks
while the recording component is connected to the
analog AUDIO OUT (DVR, VCR or MD/CD-R)
jacks.
See
page
88
88
87, 88
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37
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21
21
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20
20