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ManualsBrandsDenon ManualsAV Receivers & AmplifiersDenon AVRX6400H 11.2 Channel Full 4K Ultra HD Network AV Receiver with HEOS black, Works with Alexa (Discontinued by Manufacturer)

Common questions and troubleshooting tips for newly purchased Denon AVR's. 
 
Below is a list of common questions/ setup problems. 
  Not sure which type of cable to use, please click here. 
  No video from your AVR to Television or projector screen please click 
here and answer the questions. 
  If you cannot hear any Audio from your AVR, please click here and answer 
the questions. 
  No Audio from Zone 2, Plese click here.  
  What is LFE and LFE+Main? Please click here. 
  If your Standby light is Red, please click here. 
  No Sound from Surround Speakers. Please click here  
  Want to learn more about Audyssey Modes, please click here. 
  Not sure which setting (Large or Small) to use for your 
speakers? Please click here. 
If you don't find what you looking for here we would encourge you to contact 
our call center and speak with a knowlegable agent. Generally they are able to get 
to the root cause and offer a solution in about 10 minutes.  
We wish you many years of enjoyment of your Denon AVR. 
Thank you. 
Answers others found helpful 
  No audio from all or one of my source devices 
  No video from one or all of my sources 
  A/V Receivers and Possible Cable Connections 
  Speaker Connections 
  LFE - Modes 
 