Get
ting Star
ted
Connections
Set
tin
g
s
Pla
ybac
k
Remot
e Contr
ol
ZONE2
Inf
or
mation
Specifications
ENGLISH
If a problem should arise, first check the following:
1. Are the connections correct?
2. Is the set being operated as described in the owner’s manual?
3. Are the other components operating properly?
If this unit does not operate properly, check the items listed in the table below. Should the problem persist,
there may be a malfunction.
In this case, disconnect the power immediately and contact your store of purchase.
Troubleshooting
Symptom
Cause / Countermeasure
Page
Set does not operate
properly.
Reset the microprocessor.
•
99
Power does not
turn on, or turns off
directly after it was
turned on.
Check that the power plugs are securely inserted into the AVR-
990’s AC inlet and the wall power outlet.
•
23
No sound is produced
from speakers.
Check the connections to the input devices and the speaker cable
connections.
Check the connections to the playback devices and select the
appropriate input source.
Adjust the master volume to an appropriate level.
Cancel the mute mode.
Disconnect the headphones. No sound is output from the speakers
or the PRE OUT terminals when headphones are connected.
Select an input source for which the digital input setting has been
made.
Match the terminal to which the digital input terminal is assigned
with the input mode.
•
•
•
•
•
•
•
12 ~ 22
13 ~ 23, 26
65
65
65
45, 46
48
Display is off.
Set the dimmer function to a setting other than “OFF”.
Cancel the PURE DIRECT mode. The display turns off when in
the Pure Direct mode.
•
•
42
68
“DOLBY DIGITAL”
indicator does not
appear on display.
Check the Blu-ray Disc player / DVD player’s audio output setting.
For details, read the Blu-ray Disc player / DVD player’s operating
instructions.
•
–
G
General
H
Symptom
Cause / Countermeasure
Page
Power switches
off suddenly while
you are using the
AVR-990, the power
indicator will flash
in red at intervals
of approximately 2
seconds.
The protection circuit will be activated depending upon the
temperature rise in the internal parts of the unit. Please switch off
power at once, and re-apply the power after the body temperature
has fallen sufficiently.
Please re-install AVR-990 in a place having good ventilation.
•
•
–
–
Power switches
off suddenly while
you are using the
AVR-990, the power
indicator will flash
red at intervals of
approximately 0.5
seconds.
Please use speakers which have the specified impedance.
The protection circuit has been activated because the core wires
of different speaker cables have touched each other or a core
wire has slipped out of the terminal and is touching the AVR-990’s
rear panel. Unplug the power cord, then after twisting the core
wires together tightly again, or effecting termination treatments
etc, please reconnect once again.
•
•
12
12
Even applying
power, the power
display flashes
red at intervals of
approximately 0.5
seconds.
The AVR-990 amplifier circuit has failed. Switch off the power and
please contact the DENON service adviser.
•
–
G
Remote Control Unit
H
Symptom
Cause / Countermeasure
Page
Set does not work
properly when remote
control unit operated.
Batteries are worn. Replace with new batteries.
Operate the remote control unit within a distance of about 7 m
from the AVR-990 and at an angle of within 30°.
Remove the obstacle between the AVR-990 and the remote
control unit.
Insert the batteries in the proper direction, checking the
q
and
w
marks.
The set’s remote control sensor is exposed to strong light (direct
sunlight, inverter type fluorescent bulb light, etc.). Move the set
to a place in which the remote control sensor will not be exposed
to strong light.
Make sure the remote control IDs of the main unit and remote
control unit match.
Set the remote control unit’s function button properly.
•
•
•
•
•
•
•
3
3
–
3
3
42
7
Tr
oubleshooting
