20 Most Recent Denon AVR-E400 - Page 7 Questions & Answers

Try the suggestions from manual. If this does not work you may have send it in for repair. Unless you have the skill and knowledge and $2000- $3000 worth of test equipment it is not a DIY repair.

Denon Audio... | Answered on Jul 28, 2018

Unless you have a screwy setting on the broadcasting device (try other known good bluetooth devices first to rule this out), then your problem is highly likely the same as mine....

There are bendable pins within the headphone jack on the headphones that are used to determine when the jack is in use or not. They are cheaply made / designed to fail and when they do, this is one of the outcomes (the others are, no sound at all because both switching leads are broken/bent/coated, or no sound in the opposite speaker). Some people have had luck with compressed air and/or a small qtip dipped in strong pure alcohol (isopropyl or something, not drinkable alcohol that has sugars in it...) to clean the jack in the case it is gunked up / coated. But in my case it was physically bent (I presume) and cleaning did nothing.

I soldered the 2 pins/footpads in the far left corner when the opening of the jack is facing towards you (the right channel of the headphone was the one that was dead for me... i think, you could possibly need to fix the lead on the opposite side if your left channel wasn't working but I found the leads to fix mine by using a pair of tweezers to connect the leads while the device was running on bluetooth) jack itself together with a small piece of wire. Seems good so far!

Millions of devices are affected by this issue from headphones to laptops and micro-soldering totally sucks. This would seem to be a designed flaw....

Denon Audio... | Answered on Jul 20, 2018

There are several analog inputs. I'd choose the one that that says 'VCR (iPod'). With the preamp, any analog input should work. The preamp is basically needed for inverse RIAA equalization. LPs are equalized in order to keep the record grooves smaller, for longer playing time, Bass frequencies are reduced and treble increased, so they need an inverse filter, which the preamp supplies, as well as providing a signal level more suitable for the receiver input. Best Budget Phono Preamps For Your Turntable

Denon Audio... | Answered on Jul 06, 2018

That device converts digital audio signals into analog audio signals.

Denon Audio... | Answered on Jun 29, 2018

Check for an open internal fuse. Also, the power supply may have failed.

Denon Audio... | Answered on Jun 18, 2018

Best and cheapest way to improve the sound from any TV is to get a soundbar. Even the cheapest one will be better than the TVs speakers.

Denon Audio... | Answered on Jun 15, 2018

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