Troubleshooting - Denon AVR-1404/484 Operating Instructions Manual

DTS Digital Surround
Digital Theater Surround (also called simply DTS) is a multi-channel digital signal format developed by Digital
Theater Systems.
DTS offers the same "5.1" playback channels as Dolby Digital (front left, front right and center, surround left and
surround right) as well as the stereo 2-channel mode. The signals for the different channels are fully independent,
eliminating the risk of deterioration of sound quality due to interference between signals, crosstalk, etc.
DTS features a relatively higher bit rate as compared to Dolby Digital (1234 kbps for CDs and LDs, 1536 kbps for
DVDs) so it operates with a relatively low compression rate. Because of this the amount of data is great, and
when DTS playback is used in movie theaters, a separate CD-ROM synchronized with the film is played.
With LDs and DVDs, there is of course no need for an extra disc; the pictures and sound can be recorded
simultaneously on the same disc, so the discs can be handled in the same way as discs with other formats.
There are also music CDs recorded in DTS. These CDs include 5.1-channel surround signals (compared to two
channels on current CDs). They do not include picture data, but they offer surround playback on CD players that
are equipped with digital outputs (PCM type digital output required).
DTS surround track playback offers the same intricate, grand sound as in a movie theater, right in your own
listening room.
2 DTS compatible media and playback methods
Marks indicating DTS compatibility:
The following are general examples. Also refer to the player's operating instructions.
Media Dolby Digital output jacks
Optical or coaxial digital output
CD
(same as for PCM) 2
Optical or coaxial digital output
LD (VDP)
(same as for PCM) 2
Optical or coaxial digital output
DVD
(same as for PCM) 3
1 DTS signals are recorded in the same way on CDs and LDs as PCM signals. Because of this, the un-
decoded DTS signals are output as random "hissy" noise from the CD or LD player's analog outputs. If
this noise is played with the amplifier set at a very high volume, it may possibly cause damage to the
speakers. To avoid this, be sure to switch the input mode to "AUTO" or "DTS" before playing CDs or LDs
recorded in DTS. Also, never switch the input mode to "ANALOG" or "PCM" during playback. The same
holds true when playing CDs or LDs on a DVD player or LD/DVD compatible player. For DVDs, the DTS
signals are recorded in a special way so this problem does not occur.
2 The signals provided at the digital outputs of a CD or LD player may undergo some sort of internal signal
processing (output level adjustment, sampling frequency conversion, etc.). In this case the DTS-encoded
signals may be processed erroneously, in which case they cannot be decoded by the AVR-1404/484, or
may only produce noise. Before playing DTS signals for the first time, turn down the master volume to a
low level, start playing the DTS disc, then check whether the DTS indicator on the AVR-1404/484 (see page
19) lights before turning up the master volume.
3 A DVD player with DTS-compatible digital output is required to play DTS DVDs. A DTS Digital Output logo
is featured on the front panel of compatible DVD players. Recent DENON DVD player models feature DTS-
compatible digital output – consult the player's owner's manual for information on configuring the digital
output for DTS playback of DTS-encoded DVDs.
"DTS" and "DTS Digital Surround" are registered trademarks of Digital Theater Systems, Inc.
and .
Playback method (reference page)
Set the input mode to "AUTO" or "DTS" (page 15). Never set
the mode to "ANALOG" or "PCM". 1
Set the input mode to "AUTO" or "DTS" (page 15). Never set
the mode to "ANALOG" or "PCM". 1
Set the input mode to "AUTO" or "DTS" (page 15).
19

TROUBLESHOOTING

If a problem should arise,first check the following.
1. Are the connections correct ?
2. Have you operated the receiver according to the Operating Instructions ?
3. Are the speakers and other components operating property ?
If this unit is not operating properly, check the items listed in the table below. Should the problem persist, there
may be a malfunction.
Disconnect the power immediately and contact your store of purchase.
Symptom
• Power cord not plugged in
DISPLAY not lit and sound not securely.
produced when power
operation switch set to on.
• Speaker cords not securely connected.
• Improper position of the audio
function button.
DISPLAY lit but sound not • Volume control set to minimum.
produced. • MUTING is on.
• Digital signals not input Digital input
selected.
• Speaker
terminals
circuited.
• Block the ventilation holes of the
DISPLAY not displayed and the set.
power indicator flashes at a
high rate.
• The unit is operating at continuous
high power
inadequate ventilation.
• Incomplete connection of speaker
Sound produced only from one cords.
• Incomplete connection of
channel.
input/output cords.
• Reverse connections of left and
Positions of instruments
reversed during stereo right speakers or left and right
playback. input/output cords.
• Batteries dead.
• Remote control unit too far from this
unit.
This unit does not operate
• Obstacle between this unit and
properly when remote control
remote control unit.
unit is used.
• Different button is being pressed.
• < and > ends of battery inserted in
reverse.
NOTE:
• When a subwoofer has been connected and the virtual surround function is being used, the signal played
from the subwoofer channel is LFE only (only when playing Dolby Digital or DTS signals) for initial factory
settings (i.e., the setting of the front speaker is "LARGE" and the setting of the subwoofer mode is
"NORM").
When subwoofer effects are felt to be weak, try setting the subwoofer mode to "+MAIN", or the front
speaker to "SMALL" in the System setup "Speaker Configuration" settings.
Making these settings will result in the low-frequency sounds of the front channel being played from the
subwoofer.
Cause Measures
• Check the insertion of the power
cord plug.
• Turn the power on with the remote
control unit after turning the power
operation switch on.
• Connect securely.
• Set to a suitable position.
• Turn volume up to suitable level.
• Switch off MUTING.
• Input digital signals or select input
jacks to which digital signals are
being input.
• Switch power off, connect speakers
are short-
properly, then switch power back
on.
• Turn off the set's power, then
ventilate it well to cool it down.
Once the set is cooled down, turn
the power back on.
• Turn off the set's power, then
conditions and/or ventilate it well to cool it down.
Once the set is cooled down, turn
the power back on.
• Connect securely.
• Connect securely.
• Check left and right connections.
• Replace with new batteries.
• Move closer.
• Remove obstacle.
• Press the proper button.
• Insert batteries properly.
ENGLISH
Page
5
15
8
15
16
16
16
8
3, 8
3, 8
8
5 ~ 8
8
9
9
9
—
9
29