Denon receiver troubleshooting

Denon is a company with a 100-year history of manufacturing powerful audio and visual equipment. Currently its product range includes home theater, wireless and portable audio devices.
Although the company claims to use only quality parts, it sometimes happens that appliances don’t live up to your expectations. Do you find your Denon receiver unresponsive to both remote control and front panel commands? Does it appear frozen or do you notice any other symptoms? Look for them in the lists below, and there’s every possibility you will have your problem solved very soon without someone else’s help.

Denon DRA-295 receiver troubleshooting

SymptomCauseMeasures
DISPLAY not lit and sound not produced when power operation switch set to on.• Power cord not plugged in securely.• Check the insertion of the power cord plug.
•Turn the power on with the remote control unit after turning the power operation switch on.
DISPLAY lit but sound not produced.• Speaker cords not securely connected.• Connect securely.
• Improper position of the audio function button.• Set to a suitable position.
• Volume control set to minimum. •MUTING is on.• Turn volume up to suitable level. •Switch off MUTING.
DISPLAY not displayed and the power indicator flashes at a high rate.• Speaker terminals are short-circuited.• Switch power off, connect speakers properly, then switch power back on.
• Block the ventilation holes of the set.• Turn off the set's power, then ventilate it well to cool it down. Once the set is cooled down, turn the power back on.
• The unit is operating at continuous high power conditions and/or inadequate ventilation.• Turn off the set's power, then ventilate it well to cool it down. Once the set is cooled down, turn the power back on.
Sound produced only from one channel.• Incomplete connection of speaker cords.• Connect securely.
• Incomplete connection of input/output cords.• Connect securely.
Positions of instruments reversed during stereo playback.• Reverse connections of left and right speakers or left and right input/output cords.• Check left and right connections.
This unit does not operate properly when remote control unit is used.• Batteries dead.• Replace with new batteries.
• Remote control unit too far from this unit.• Move closer.
• Obstacle between this unit and remote control unit.• Remove obstacle.
• Different button is being pressed.• Press the proper button.
• © and © ends of battery inserted in reverse.• Insert batteries properly.

Denon AVR-X1000 receiver troubleshooting

SymptomCause / Solution
Power does not turn on.• Check whether the power plug is correctly inserted into the power outlet.
Power automatically turns off.• The sleep timer is set. Turn on the power again.
• "Auto Standby" is set. "Auto Standby" is triggered when there is no operation for a set amount of time. To disable "Auto Standby", set "Auto Standby" on the menu to "Off".
Power turns off and the power indicator flashes in red approx. every 2 seconds.• Due to the temperature rise within this unit, the protection circuit is working. Turn off the power and wait about an hour until this unit sufficiently cools down. Then, turn on the power again.
• Please re-install this unit in a place having good ventilation.
Power turns off and the power indicator flashes in red approx. every 0.5 seconds.• Check the speaker connection. The protection circuit may have been activated because speaker cable core wires came in contact with each other or a core wire was disconnected from the connector and came in contact with the rear panel of this unit. After unplugging the power cord, take corrective action such as firmly re-twisting the core wire or taking care of the connector, and then reconnect the wire.
• Turn down the volume and turn on the power again.
• This unit's amplifier circuit has failed. Turn off the power and please contact the Denon service adviser.
Operations cannot be performed through the remote control unit.• Batteries are worn out. Replace with new batteries.
• Operate the remote control unit within a distance of about 23 ft/7 m from this unit and at an angle of within 30°.
• Remove any obstacle between this unit and the remote control unit.
• Insert the batteries in the proper direction, checking the © and © 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.
• When using a 3D video device, the remote control unit of this unit may not function due to effects of infrared communications between units (such as TV and glasses for 3D viewing). In this case, adjust the direction of units with the 3D communications function and their distance to ensure they do not affect operations from the remote control unit of this unit.
No sound comes out of speakers.• Check the connections for all devices.
• Insert connection cables all the way in.
• Check that input connectors and output connectors are not reversely connected.
• Check cables for damage.
• Check that speaker cables are properly connected. Check that cable core wires come in contact with the metal part on speaker terminals. Also, securely tighten speaker terminals. Check speaker terminals for looseness.
• Check that a proper input source is selected.
• Adjust the master volume.
• Cancel the mute mode.
• Check the digital input connector setting.
• Check the digital audio output setting on the connected device. On some devices, the digital audio output is set to off by default.
• No sound is output from the speakers when headphones are connected.
No sound comes out when using the DVI-D connection.• When this unit is connected to a device equipped with a DVI-D connector, no sound is output. Make a separate audio connection.
The volume does not increase.• The maximum volume is set too low. Set the maximum volume using "Limit"on the menu.
• Appropriate volume correction processing is performed according to the input audio format and settings, so the volume may not reach the upper limit.
No sound comes out with the HDMI connection.• Check the connection of the HDMI connectors.
• When outputting HDMI audio from the speakers, set "HDMI Audio Out" on the menu to "AVR". To output from the TV, set "TV".
• When using the HDMI control function, check that the audio output is set to the AV amplifier on the TV.
No sound comes out of a specific speaker.• Check that the speaker cable is properly connected.
• Check that a selection other than "None" is set for the "Speaker Config." setting in menu.
• When the sound mode is "STEREO" and "VIRTUAL", audio is only output from the front speakers and subwoofer.
No sound is produced from subwoofer.• Check the subwoofer connections.
• Turn on the subwoofer's power.
• Set "Speaker Config." "Subwoofer" on the menu to "Yes".
• When "Speaker Config." "Front" in the menu is set to "Large", depending on the input signal and the sound mode, no sound may be output from the subwoofer.
• When no subwoofer audio signal (LFE) is included in the input signals, no sound may be output from the subwoofer.
• You can make the subwoofer always output sound by setting the subwoofer mode to "LFE+Main".
DTS sound is not output.• Check that the digital audio output setting on the connected device is set to "DTS".
• Set "Decode Mode" on the menu to "Auto" or "DTS".
Dolby TrueHD. DTS-HD, Dolby Digital Plus audio is not output.• Make HDMI connections.
• Check the digital audio output setting on the connected device. On some devices, "PCM" is set by default.
Dolby PLII mode or DTS NEO:6 mode cannot be selected.• It cannot be selected when "None" is set for "Speaker Config." "Center" and "Surround".
• These cannot be selected when using the headphones.
Audyssey MultEQ* XT, Audyssey Dynamic EQ® and Audyssey Dynamic Volume® cannot be selected.• These cannot be selected when you have not performed Audyssey® Setup.
• Switch the sound mode to other than "DIRECT" or "PURE DIRECT".
• These cannot be selected when using the headphones.
• These cannot be selected when an HD audio format with a sampling frequency of over 96 kHz is input (such as may be found on select Dolby TrueHD and DTS-HD discs).
"Restorer" cannot be selected.• Check that an analog signal or PCM signal (Sample Rate=44.1/48 kHz) is input. For playback of multichannel signals such as Dolby Digital or DTS surround, "Restorer" cannot be used.
• Switch the sound mode to other than "DIRECT" or "PURE DIRECT".
No audio is output in ZONE2.• You cannot play back the audio for digital signals that are input from the HDMI connector or digital connectors (OPTICAL/COAXIAL). Make an analog connection instead.
iPod cannot be connected.• When using iPod by connecting it to the USB port, some iPod variations are not supported.
• When iPod is connected by using a USB cable other than the genuine cable, iPod may not be recognized. Use a genuine USB cable.
The AirPlay icon D is not displayed on iTunes / iPhone / iPod touch / iPad.• This unit and PC / iPhone / iPod touch / iPad are not connected to the same network (LAN). Connect it to the same LAN as this unit.
• The firmware on iTunes / iPhone / iPod touch / iPad is not compatible with Airplay. Update the firmware to the latest version.
Audio is not output.• The volume on iTunes / iPhone / iPod touch / iPad is set to the minimum level. The volume on iTunes / iPhone / iPod touch / iPad is linked with the volume on this unit. Set a proper volume level.
• The AirPlay playback is not performed, or this unit is not selected. Click the AirPlay icon D on the iTunes / iPhone / iPod touch / iPad screen and select this unit.
Audio is interrupted during the Airplay playback on iPhone / iPod touch / iPad.• Quit the application running in the background of the iPhone/iPod touch/iPad, and then play using AirPlay.
• Some external factors may be affecting the wireless connection. Modify the network environment by taking measures such as shortening the distance from the wireless LAN access point.
iTunes cannot be played back through the remote control unit.• Enable the "Allow iTunes control from remote speakers'' setting on iTunes. Then, you can perform playback, pause, and skip operations through the remote control unit.
"No Connection" is displayed.• The set cannot recognize a USB memory device. Disconnect and reconnect the USB memory device.
• USB memory devices of a mass storage class or those compatible with MTP are supported.
• This unit does not support a connection through a USB hub. Connect the USB memory device directly to the USB port.
• The USB memory device must be formatted to FAT16 or FAT32.
• Not all USB memory devices are guaranteed to work. Some USB memory devices are not recognized. When using a type of portable hard disc drive compatible with the USB connection that requires power from an AC adapter, use the AC adapter that came with the drive.
Files on the USB memory device are not displayed.• Files of a type not supported by this unit are not displayed.
• This unit can display a file structure with up to 8 levels and up to 5000 subfolders and files in total. Modify the folder structure of the USB memory device.
• When multiple partitions exist on the USB memory device, only files on the first partition are displayed.
Files on a USB memory device cannot be played.• Files are created in a format that is not supported by this unit. Check the formats supported by this unit.
• You are attempting to play a file that is copyright protected. Files that are copyright protected cannot be played on this unit.

Denon AVR-5805 receiver troubleshooting

SymptomCauseMeasures
DISPLAY not lit and sound not produced when power switch set to on.• Power cord not plugged in securely.• Check the insertion of the power cord plug.
DISPLAY lit but sound not produced.• Speaker cords not securely connected.• Connect securely.
• FUNCTION knob position is not appropriate.• Switch to the proper position.
• Volume control set to minimum.• Turn volume up to suitable level.
• MUTING is on.• Switch off MUTING.
• No digital signal is being input.• Properly select a digital signal input source.
Nothing is displayed on monitor.• AVR-5805's video output jacks and monitor's input jacks are not properly connected.• Check that the connections are correct.
• Monitor TV's input setting is wrong.• Set the TV's input selector to the jacks to which video signals are connected.
• The VIDEO OFF mode is set.• Set the VIDEO ON mode.
• The PURE DIRECT mode is set.• Set a surround mode other than the PURE DIRECT mode.
• The resolution of the monitor device connected to the component monitor output connector does not match the AVR-5805's resolution.• Use the SCALE button on the main unit or the remote control unit to check the resolution setting.
No DTS sound is produced.• DVD player's audio output setting is not set to bit stream.• Make the DVD player's initial settings.
• DVD player is not DTS-compatible.• Use a DTS-compatible player.
• AVR-5805's input setting is set to analog.• Set to AUTO or DTS.
Ultra2 Cinema / THX Music Mode / THX Games Mode cannnot be set.• Surround back speaker set to 1.• Connect two surround back speakers.
Copying from DVD to VCR is not possible.• Copying between a source such as DVD and a VCR is not usually possible, as DVDs are often encoded with copy-protection signals that prevent VCR recording.• Copying is not possible.
No sound is produced from subwoofer.• Subwoofer's power is not on.• Turn on the power.
• Subwoofer's initial setting is set to "NO".• Set the setting to "YES”.
• Subwoofer's output is not connected.• Connect properly.
No test tones are produced.• Surround mode is set to a mode other than Dolby Surround.• Set to Dolby Surround.
No sound is produced from surround speakers.• Surround mode is set to "STEREO”.• Set to a mode other than "STEREO".
This unit does not operate properly when Remote control unit is used.• Batteries dead.• Replace with new batteries.
• Remote control unit too far from this unit.• Move closer.
• Obstacle between this unit and Remote control unit.• Remove obstacle.
• Different button is being pressed.• Press the proper button.
• © and © ends of battery inserted n reverse.• Insert batteries properly.
An image is not projected with an HDMI/DVI-D connection.• AVR-5805's HDMI/DVI-D output jacks and monitor's mput jacks are not properly connected.• Check the HDMI/DVI-D connection.
• No HDMI/DVI-D signal is being input.• Properly select HDMI or DV1-D signal input source.
• The connected monitor equipment or other equipments do not spport HDCP• The AVR-5805 will not output video signal unless the other equipment supports HDCP
• The settings of "MONITOR SELECT" is not appropriate.• Check the settings of "MONITOR SELECT".
• The output format of the connected player (HDMI/DVI-D FORMAT) does not matche the supported input format of connected monitor equipments.• Check whether the output format of the connected player (HDMI/DVI-D FORMAT) matches the supported input format of connected monitor equipments.
The HDMI audio is not output.• The AVR-5805 does not play HDMI audio signals.• Set the HDMI audio playback setting at the "HDMI/DVI In Assign" settings to "AMP".
• The HDMI audio signals are not output from the connected monitor device.• Set the HDMI audio playback setting at the "HDMI/DVI In Assign" settings to "TV”.

Denon AVR-3805 receiver troubleshooting

SymptomCauseMeasures
DISPLAY not lit and sound not produced when power switch set to on.• Power cord not plugged in securely.• Check the insertion of the power cord plug.
• Turn the power on with the remote control unit after turning the POWER switch on.
DISPLAY lit but sound not produced.• Speaker cords not securely connected.• Connect securely.
• Improper position of the audio function button.• Set to a suitable position.
• Volume control set to minimum.• Turn volume up 😮 suitable level.
• MUTING is on.• Switch off MUTING.
• Digital signals not input Digital input selected.• Input digital signals or select input jacks to which digital signals are being input.
DISPLAY not lit and power indicator is flashing rapidly.• Speaker terminals are short- circuited.• Switch power off. connect speakers properly, then switch power back on.
• Block the ventilation holes of the set.• Turn off the set's power, then ventilate it well to cool it down. Once the set is cooled down, turn the power back on.
• The unit is operating at continuous high power conditions and/or inadequate ventilation.• Turn off the set's power, then ventilate it well to cool it down. Once the set is cooled down, turn the power back on.
Sound produced only from one channel.• Incomplete connection of speaker cords.• Connect securely.
• Incomplete connection of input/output cords.• Connect securely.
Positions of instruments reversed during stereo playback.• Reverse connections of left and right speakers or left and right input/output cords.• Check left and right connections.
The on screen display is not displayed.• "On screen display" is set to off on the system setup menu screen.• Set "on screen display" on the system setup menu screen to on.
Humming noise produced when Record is playing.• Ground wire of turntable not connected properly.• Connect securely.
• Incomplete PHONO jack connection.• Connect securely.
• TV or radio transmission antenna nearby.• Contact your store of purchase.
Howling noise produced when volume is high.• Turntable and speaker systems too close together.• Separate as much as possible.
• Floor is unstable and vibrates easily.• Use cushions to absorb speaker vibrations transmitted by floor. If turntable is not equipped with insulators, use audio insulators (commonly available).
Sound is distorted.• Stylus pressure too weak.• Apply proper stylus pressure.
• Dust or dirt on stylus.• Check stylus.
• Cartridge defective.• Replace cartridge.
Volume is weak.• MC cartridge being used.• Replace with MM cartridge or use a head amplifier or step-up transformer.

Error codes and troubleshooting