135
Basic versionSimple version Advanced version Information
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/Solution Page
Power does not turn 
on.
• Check whether the power plug is correctly inserted into the power 
outlet.
• The protection circuit is active. Disconnect the power plug from 
the electric  outlet, wait 5  to  10 seconds and  then insert it  back 
into the outlet.
6
5, 134
Display is off. • Set “Dimmer” on the menu to something other than “OFF”. 105
The power indicator 
is blinking red 
in intervals of 
approximately 2 
seconds.
• The temperature inside the unit has risen. Please turn off power 
once,  and  re-apply  the  power  after  the  temperature  has  fallen 
sufficiently.
• Please re-install this unit in a place having good ventilation.
–
–
The power indicator 
is blinking red 
in intervals of 
approximately 0.5 
seconds.
• Please use speakers which have the specified impedance.
• The speaker cable has shorted (is touching). Firmly twist the core 
wire in the speaker cable, and then re-connect it  to  the speaker 
terminal.
5, 98
5
After turning on the 
power, the power 
indicator is blinking 
red in intervals of 
approximately 0.5 
seconds.
• This unit amplifier circuit has failed. Turn off the power and please 
contact the DENON service adviser.
–
Set does not operate 
properly.
• Reset the microprocessor. 138
GVideoH
Symptom Cause/Solution Page
No picture appears. • Check the TV connection.
• Set the TV input correctly.
6
7
Troubleshooting
GAudioH
Symptom Cause/Solution Page
Audio is not output. • Check the connections for all devices.
• Check the speaker connections and configurations.
• Check whether the audio device power is turned on.
• Adjust the master volume.
• Cancel the mute mode.
• Select a suitable input source.
• Select a suitable input mode.
• Disconnect the headphones. No sound is output from the speakers 
or the PRE OUT connectors when headphones are connected.
6, 17 – 26
5, 6,  
54 – 62
–
13, 28
13, 29
28
84
120
No sound is 
produced from 
surround speaker.
• Check if the surround speakers are connected to the SURROUND 
terminals.
–
No sound is 
produced from 
surround back 
speaker.
• Check  if  “Amp  Assign”  is  set  appropriately  in  order  to  output 
audio from the surround back speakers.
• Set  “Speaker  Config.”  –  “Surround  Back”  on  the  menu  to 
something other than “None”.
• Set  “Surround Parameters” – “Surround Back”  on the menu to 
something other than “OFF”.
• Set the surround mode to something other than “STEREO”.
93
96
87
52
No sound is 
produced from front 
height speaker.
• Set  “Surround  Parameters”  –  “PLgz  Height”  on  the  menu  to 
“ON”.
• Check  if  “Amp  Assign”  is  set  appropriately  in  order  to  output 
audio from the front height speakers.
• Set “Speaker Config.” – “Front Height” on the menu to something 
other than “None”.
88
93
96
No sound is 
produced from 
subwoofer.
• Check the subwoofer connections.
• Turn on the subwoofer’s power.
• Set  “Speaker Config.”  – “Subwoofer”  on the  menu  to  “1spkr” 
or “2spkrs”.
• If “Front” and “Center” for “Speaker Config.” are set to “Large”, 
and “Subwoofer Mode” is set to “LFE”, no sound may be output 
from the subwoofers, depending on the input signal or selected 
surround mode.
6, 56
7
96
95, 96
DTS sound is not 
output.
• Set “Decode Mode” on the menu to “Auto” or “DTS”. 84
Dolby TrueHD, DTS-
HD, Dolby Digital 
Plus audio is not 
output.
• Make HDMI connections. 17
Dolby PLg mode or 
DTS NEO:6 mode 
cannot be selected. 
Or “Not Available” is 
displayed when the 
STANDARD button is 
pressed. 
• Check  that  “Speaker  Config.”  –  “Center”  or  “Surround”  is  set 
to  other  than  “None”.  If  the  speaker  system  is  2.0/2.1ch,  this 
surround mode cannot be selected. 
• When  headphones  are  used,  STANDARD  mode  (Dolby  PLg  or 
DTS NEO:6) cannot be selected. 
96
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1.AVR4311CIEU_ENG_108.indd   135 2010/08/30   20:11:18