To Next PageTo Next PageWhy is there no audio output with HDMI connection on my Denon AVR-391?
If you're not getting any audio with an HDMI connection on your Denon Stereo Receiver, first check the HDMI connector connections. If you want audio from the speakers, set "Audio Out" on the menu to "Amp". If you want audio from the TV, set "Audio Out" on the menu to "TV".
What to do if there is no sound from my Denon AVR-391 Stereo Receiver?
If you're not getting any sound from your Denon Stereo Receiver, check the connections for all devices and the speaker connections. Make sure the audio device power is on, adjust the master volume, and cancel mute mode. Select the correct input source and mode, and disconnect any headphones.
Why is there no sound from the surround back speaker on my Denon AVR-391 Stereo Receiver?
If there is no sound from the surround back speaker on your Denon Stereo Receiver, set "Speaker Config." – "S.B(Pre)" on the menu to something other than "None". Also, set "Surround Parameter" – "SB CH OUT" on the menu to something other than "OFF", and ensure the surround mode is not set to "STEREO".
General| Number of Channels | 5.1 |
|---|---|
| HDMI Inputs | 4 |
| HDMI Outputs | 1 |
| Dolby Formats | Dolby Digital, Dolby Pro Logic II |
| Audio Return Channel | Yes |
| Component Video Inputs | 2 |
| Digital Optical Inputs | 1 |
| Digital Coaxial Inputs | 1 |
| Response Bandwidth | 10 Hz - 100 kHz |
| Signal-To-Noise Ratio | 98 dB |
| THD | 0.08% |
| Input Impedance | 47 kOhms |
| Input Sensitivity | 200 mV |
| Tuner Bands | AM/FM |
| Power Output | 75 Watts per channel |
| DTS Formats | DTS |
| Tuner Frequency Range | FM: 87.5 - 108 MHz |
| Video Inputs/Outputs | Composite |
| Audio Inputs/Outputs | Digital Optical |
| Dimensions | 434 x 151 x 319 mm |
| Weight | 8.5 kg |
Procedure for checking leakage current before returning the unit.
Points to heed during servicing, covering electric shock and part handling.
Importance of using designated parts for safety properties.
Details power amplifier ratings, input sensitivity, and frequency response.
Covers receiving ranges, sensitivity, and distortion for FM/AM.
Includes power supply, consumption, external dimensions, and weight.
Steps for removing the front panel assembly from the unit.
Procedure for removing the HDMI unit.
Procedure for disassembling the power unit.
Required items and PC setup for firmware update.
Step-by-step guide for updating the AV receiver firmware.
Procedure for adjusting the audio section, focusing on idling current.
Detailed steps for setting the idling current for audio channels.
Troubleshooting steps for power-related problems like no turn-on.
Troubleshooting guide for analog video output problems.
Steps to resolve no picture or sound output via HDMI/DVI.
Component layout diagram for the front printed wiring board.
Component layout diagram for the main printed wiring board.
Component layout diagram for the input printed wiring board.
