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Troubleshooting
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.
GGeneralH
Symptom
Cause
Set does not
• External noise or interference is
operate properly.
causing the set to malfunction.
Power does not
• Connection of the power cord is
turn on, or turns
faulty.
off directly after it
was turned on.
No sound is
• Connection
with
the
produced from
devices or connection of the
speakers.
speaker cables is faulty.
• Device you want to play and set
input source do not match.
• Master volume is turned too
low.
• Mute mode is set.
• Headphones are connected.
• No digital signals are being
input.
• The connectors to which the
digital inputs are assigned and
the settable input modes do not
match.
Display is off.
• The "Dimmer" setting is set to
"OFF" .
• The PURE DIRECT mode is set.
Countermeasure
• Reset the microprocessor.
• Check the insertion of the power
cord plug.
input
• Check the connections.
• Select
an
appropriate
input
source.
• Adjust the master volume to an
appropriate level.
• Cancel the mute mode.
• Disconnect the headphones.
• Select an input source for which
the digital input setting has been
made.
• Set the input mode.
• Set to something other than
"OFF" .
• Set a surround mode other than
the PURE DIRECT mode.
Symptom
"DOLBY DIGITAL "
• Blu-ray Disc player / DVD player's
indicator does not
digital audio output setting is not
appear on display.
proper.
Power switches
• The protection circuit will be
off suddenly while
activated depending upon the
you are using
temperature rise in the internal
Page
the AVR-789, the
parts of the unit.
60
power indicator
will flash in red
at intervals of
17
approximately 2
seconds.
Power switches
• Use speakers having impedance
10
off suddenly while
less than that specified.
you are using
• If speaker cable core wires touch
the AVR-789, the
each other or the core wires
power indicator
become disconnected from their
50
will flash red
terminals, the protection circuit
at intervals of
will be activated in the event of
50
approximately 0.5
core wires coming into contact
50
seconds.
with the AVR-789 rear panel.
50
Even applying
• The AVR-789 amplifier circuit has
38
power, the power
failed.
display flashes
red at intervals of
37
approximately 0.5
seconds.
33
42
Cause
Countermeasure
• 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.
• Please switch off power at once,
and re-apply the power after
the body temperature has fallen
sufficiently.
• Please re-install AVR-789 in a
place having good ventilation.
• Please use speakers which have
the specified impedance.
• Unplug the power cord, then
after twisting the core wires
together tightly again, or effecting
termination
treatments
please reconnect once again.
• Switch off the power and please
contact the DENON service
adviser.
ENGLISH
ENGLISH
Page
–
10
–
10
10
etc,
–
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