Denon AVR-1909 Owner's Manual page 75

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 that the power plugs are
securely inserted into the AVR-
1909's AC inlet and the wall
power outlet.
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 • Blu-ray Disc player / DVD player's
DIGITAL" digital audio output setting is not
indicator does not proper.
appear on display.
Power switches • The protection circuit will be
off suddenly while activated depending upon the
you are using the temperature rise in the internal
Page
AVR-1909, the parts of the unit.
55
power indicator
will flash in red
at intervals of
16
approximately 2
seconds.
Power switches • Use speakers having impedance
10 off suddenly less than that specified.
while you are • If speaker cable core wires touch
using the AVR- each other or the core wires
1909, the power become disconnected from their
46
indicator will flash terminals, the protection circuit
red at intervals of will be activated in the event of
46
approximately 0.5 core wires coming into contact
46 seconds. with the AVR-1909 rear panel.
46
Even applying • The AVR-1909 amplifier circuit
35
power, the power has failed.
display flashes
red at intervals of
34
approximately 0.5
seconds.
31
38
Cause Countermeasure
• Check the Blu-ray Disc player /
DVD player's audio
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-1909 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
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output
10
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10
10
etc,
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