Troubleshooting - Denon AVR-987 Operating Instructions Manual

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 properly?
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 Cause
Display not lit and • Power supply cord not plugged in
sound not produced securely.
when POWER switch
set to on.
• Speaker cables
connected.
• FUNCTION knob position is not
Display lit but sound appropriate.
not produced. • Volume control set to minimum.
• MUTING is on.
• No digital signal is being input.
• AVR-987's video output terminals
and monitor's input terminals are
not properly connected.
• Monitor's input setting is wrong.
Nothing is displayed on
monitor. • The PURE DIRECT mode is set.
• Player connected with component
terminal, TV connected with video
terminal (yellow)
terminal.
• DVD player's audio output setting
is not set to bit stream.
No DTS sound is
• DVD player is not DTS-compatible.
produced.
• AVR-987's input setting is set to
analog
• Copying between a source such as
DVD and a VCR is not usually
Copying from DVD to
possible, as DVDs are often
VCR is not possible.
encoded with
signals that prevent VCR recording.
• Subwoofer's power is not on.
• Subwoofer's initial setting is set to
"NO".
No sound is produced
• Subwoofer's
from subwoofer.
connected.
• The subwoofer's channel volume
level is set to "OFF".
Measures
• Check the insertion of the power
supply cord plug.
not securely • Connect securely.
• Switch to the proper position.
• Turn volume up to suitable level.
• Switch off MUTING.
• Properly select a digital signal
input source.
• Check that the connections are
correct.
• Set the monitor's input selector to
the terminals to which video
signals are connected.
• Set a surround mode other than
the PURE DIRECT mode.
• Down-conversion is not possible
for progressive video signals.
or S-Video Make the interlace settings on the
player.
• Make the DVD player's default
settings.
• Use a DTS-compatible player.
• Set to "AUTO" or "DTS".
• Copying is not possible.
copy-protection
• Turn on the power.
• Set the setting to "YES".
output is not • Connect properly.
• Turn the subwoofer's channel
volume level up.
Symptom
No test tones are • Surround mode is set to a mode
produced. other than Dolby/DTS Surround.
No sound is produced • Surround
from surround "STEREO".
speakers.
• Batteries dead.
• Remote control unit too far from
This unit does not this unit.
operate properly when • Obstacle between this unit and
remote control unit is remote control unit.
used. • Different button is being pressed.
Page
<
•
in reverse.
22
• AVR-987's HDMI output terminals
and monitor's input terminals are
not properly connected.
• No HDMI signal is being input.
7
An image is not • The connected monitor equipment
23
projected with an or other equipments do not
HDMI connection. support HDCP.
23
• The
24
connected player (HDMI FORMAT)
47
does not match the supported
input format of connected monitor
8,
equipments.
13 ~ 22
• The AVR-987 does not play HDMI
audio signals.
—
The HDMI audio is not
output. • The HDMI audio signals are not
output
25
monitor device.
—
• The set's internal temperature has
risen and the protection circuit has
been activated.
Power has turned off
—
and the power • The core wires of the speaker
indicator is blinking red. cables are touching each other or
—
the
23
activating the protection circuit.
• AVR-987 is malfunctioning.
—
• You are playing a monaural source
Sound is only produced
(TV, AM radio broadcast, etc.) in
from the center
the
speaker.
mode.
—
57 • DVD player's digital audio output
"DOLBY DIGITAL" is setting is not proper.
not displayed.
7, 22
34
"CHECK ANTENNA" is • AVR-987's XM connectors and the
displayed in the XM XM Connect-and-Play antenna is
mode. not properly connected.
69
Cause
• Set to Dolby/DTS Surround.
mode is set to • Set to
"STEREO".
• Replace with new batteries.
• Move closer.
• Remove obstacle.
• Press the proper button.
>
and ends of batteries inserted • Insert batteries properly.
• Check the HDMI connection.
• Properly select HDMI signal input
source.
• The AVR-987 will not output video
signal unless the other equipment
supports HDCP.
output format of the • Check whether the output format
of the connected player (HDMI
FORMAT) matches the supported
input format of connected monitor
equipments.
• Set the HDMI audio playback
setting at the "HDMI In Assign"
settings to "AMP".
• Set the HDMI audio playback
from the connected setting at the "HDMI In Assign"
settings to "TV".
• Put the AVR-987 in a well-
ventilated place.
• Turn off the power, then wait for
the set to fully cool off before
turning the power back on.
• Check the connections of all the
speaker cables.
AVR-987's rear panel,
• Turn off the power and contact a
DENON customer service center.
• When playing monaural sources,
select a surround mode other than
DOLBY/DTS SURROUND DOLBY/DTS SURROUND mode.
• Check the DVD player's audio
output setting.
For details, see the DVD player's
operating instructions.
• Check that the connection are
correct.
Troubleshooting
Measures Page
—
a mode other than —
3
3
3
—
3
19
49, 50
19
19
49
49
7
7
7
7
32, 33
—
20