I switch it on and one of two things happens. Either its fine, or I get no sound out from it. Then the next day it works fine again - or maybe it doesn't.
When the sound stops, it stops on both left and right channels. I get no output from CD or radio or tape so it looks like the problem is in the audio amplifier stage. Volume control rotates but has no effect. There is nothing audible from the speakers. The display light etc are on so the PSU is presumably OK. Powering on-off doesn't fix it.
I waited till it stopped working, and opened it up and "wiggled" all the connectors but it made no difference then, or after reseating them. I cannot see any dry joints, split tracks or burned components by quick inspection. I think I may have started it working after tapping it strongly suggesting an intermittent or dirty contact, or a split track in a PCB. If so, it affects both left and right channels so it must be somewhere where one fault stops both channels.
I can borrow an oscilloscope :-) but I don't have a circuit diagram :-(.
A circuit diagram would be fantastic or even hints as to how it works, or which components are which - eg which is the amplifier(s), or a circuit diagram of a system which uses the same audio chip(s) so I at least have an audio circuit to work from. WHat is the chip set number?
I am thinking of following the audio signal from the volume control.
Does anyone know how the volume control works? Does the audio signal appear across the volume control, and a proportion is fed into a constant-gain amplifier from the wiper? Or does the audio NOT appear across the volume control, and instead goes direct into the amp, and the volume control provides a control signal to the amp varying its gain?
If anyone can help I will be very grateful. It's probably not worth paying to get it repaired as it would cost more than a new one, but I hate to be beaten by what must be a really simple fault.
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curt, I bought this Denon AVR 1611 and I have HD cable. If you have cable you can set it up two ways. First way (the way I have it) is to get a switch box with 2 HDMI out (mine has 4 inputs and 2 outputs) and maybe 2-4 inputs. Put the cable from the wall in one of the switch box inputs. Now hears the cool thing. Put 1 of the outputs from the switch box to the Sat/Cable input on the 1611 then put the another output to your tvs HDMI input. This allows you to switch from the tv only output or the 1611 surround output without touching the switch box. The other way is to buy a converter from HDMI to VGA. The only thing here is that you would have to setup your sound through Aux in the front of the [email protected]
Did you say you went in to DVR set-up and checked the component out audio option? I have had similiar problems with motorola dvr boxes and once I was able to enable audio output option the dvr digital output was fine. Find the manual for the model dvd and this may cure.
I switched out of the audio-out cables from the cable box to the audio in at the Denon receiver and went with a coaxial cable connection. That switch got rid of the hum. I don't understand why the initial connection produced the hum, but the unit is working fine now.
Finally the problem was with the HDMI cable. When I pushed it in on the TV set the problem disappeared. It seems the connections must be quite firm on the HDMI cables otherwise anything may interfere to the sound.
I have this same problem, I took my unit to a Denon authorized repair center and after 12 days and $50 to check out the problem they have told me that my DSP was bad and that Denon no longer makes that part. For a unit that about 2years old and no parts??? any help would be appreciated.
It's quite possible one of the relays is failing that is part of the switch between audio output choices. Do you notice any output difference between a certain output (i.e. dvd, tape etc)or is that point arbitrary?