This problem started a few days ago. When I play a cd the music comes through although it is very distorted. This is only on the optical inputs. If I hook the cd player up to the RCA jacks, it works fine. I tried playing multiple cds in my dvd player, as well, and i get the same distorted results. I've tried all three optical inputs with both the cd and dvd player and get the same results. I have tried 4 different optical cables and get the same results each time. I'm currently running the denon in 2 channel mode only, bi-amped to a pair of Klipsch KLF30's. The tuner works fine, the phono player works fine (vinyl is supposed to have a crackling sound!). All the RCA inputs seem to be fine, only the optical inputs are giving me problems. I'm hoping there is an easy fix, but I doubt it. Is the digital input board bad and need to be replaced, or should the whole unit be replaced? I did try resetting the microprocessor twice, and that didn't change anything. Any help you could give me would sure be great!
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Hello: If you are trying to get the sound from the TV to come through the receiver to your speakers and are hearing nothing, I had the same problem. For some reason, and I have the question posted, the sound level requirement is much higher for the TV. I turned my receiver up to +2 decibels and the sound was there. However, if you play high def channels through the receiver, the +2 will blow your ears off. My new problem is why does the regular TV need so much volume on the dial while the high def channels only require the lower sound level. It prevents you from switching from regular to high definition channels. So, in summary, the sound is there, just turn the volume way up.
Check your speaker wires on zone 2 and look inthe manual for speaker configurations with zone 2. you may have a speaker conflict. If you still have an issue, post a comment with your speaker setup and I'll help some more. Hope this helps
THE BEST SOUND IS WHAT SOUNDS BEST TO YOU, HOWEVER DO THIS:
1, USING THE SETUP MIC CONFIGURE YOUR DENON, PAGE 8 OF THE MANUAL. NEXT
2. RAISE THE REAR SPKR LEVELS, PAGE 46,47. NEXT
3. WHEN LISTENING TO AUDIO CD OR RADIO TRY THE 5 CH STEREO DSP MODE.
4. WHEN WATCHING A DVD USE DSP DOLBY PROLOGIC OR TRY 5CH STEREO IF THE MOVIE IS MOSTLY TALKING.
5, TRY 5CH STEREO WHEN WATCHING PROGRAMS WITH MOSTLY TALKING
So you have no sound on any Inputs? This makes a difference, if it works on some inputs but not others. For a factory reset - turn the unit off by the ON/OFF button (not the standby button) hold in the SPEAkER A & B buttons at the smae time, while pressing them turn the system on by the ON/OFF button, wait about 3 seconds and the unit should reset everything.
Does it still power up for a little bit or so with no sound what so ever?....I there is no dents in it or metal pushed in causing cracked connector boards....I can take it off you hands for a couple parts I need ...because your transformer and 2 resisters are shot and it will cost almost as much as the unit cost's.
I do have a brand new never opend $649.99 Denon AVR-788 for $365.00.
And 2 used AVR units Denon and Onkyo.....ALL HDMI
It sounds like there is a problem with the differential circuit. The bias I am not sure about, as every unit is different. You should get the service manual to be sure or call Denon and see if they can give you an idea. Good Luck