My denon avr-985 has no sound coming out of it why could this be

SOURCE: Denon AVR 2106 clicking noise

I like when a user is observant and curious. That will help immensely in resolving this problem.

What source(s) are always involved with the problem?

You imply it is observable with output video to the TV - "only when there is movement on my tv screen and it stops in still screen". That sounds like a digital pathway problem of some sort as any data errors would eventually escalate to something audible or visible to you once the hardware and correction algorhythms are exhausted. The clicking inside the receiver could be its efforts to resynchronize with a bad data stream. Hence, I'd like you to isolate the ins and outs that fail all the time and find the probable single source of the problem.

Try this: put a digital source on and select/deselect it for listening or viewing. Does it make the click in that brief time it's 'thinking' before you hear the source? That would be the 'normal' sound. My Pioneer does it once per source switch. Repeated clicking would mean it's struggling.

I'm betting you have an optical or hdmi cable that's flaky or not in tight and straight. Or, if only one extternal source is involved we follow that back.

SOURCE: Denon reciever avr-487

If your tv is putting out mono you will only get the center and sub speakers. This can be because the tv is only mono, or the output is set to mono in a menu of the tv. If you have cable or sat run the digital audio out to you receiver; it usually sound better that way anyhow. Set your receiver to Dolby mode for best sound.

SOURCE: Denon AVR 2807 with Bose Acoustimass 15

Well,i can tell you are not very focus,cause you posted Denon AVR-2807 with Bose AC 15 problem,but under your details,you put down AVR-5807!
First of all,it is so unfortunate that you are NOT able to gain and experience to true ability in sound for this wonderful receiver when you are using a dual tweeters speakers and expect to have good sound separation as a TWO WAY speakers(a tweeter and a midrange-for true high frequency and mid frequency sound separation.)
Secondly,you have defeated the audio configuration of the Denon AVR-2807,since all your speakers are control BY the Bose subwoofer.
Now,i could show you a way to hook this up,and it doesn't matter how you connect them, they are the "bicycle tires" installed with a "Porche"engine if you know what i mean.
If you want a good recommendation for your "beast",i will more than happy to show you the way!
Cheers,
solutiondoct

SOURCE: No sound from Sub.... from my Denon AVR-2700, not AVR-3300, Yeah its old!

Most of Denon receiver are on screen configuration. There should be an onscreen output in the back of the receiver, connect the video cable from that output to the tv and press the oncreen button on the remote to config. There s/b an option to turn the sub on. good luck

SOURCE: Denon AVR-3805 zone 2 no longer working

If no sound coming through Zone 2, steps that worked are below. Layout: Denon AVR-988 running in 5.1 mode with patio speakers designated as Zone 2: 1) check that patio speaker wires are connected to Denon's back surround speaker terminals, 2) check "Menu then "Manual Setup" and scroll to check that "Amp Assign function is set to "Zone 2". You won't get Zone 2 sound unless this is chosen in this instance. Also check the volume settings in the "Manual Setup" to ensure you haven't turned sound down by -40 DB or limited it. Now try turing on Zone 2 sound either on front panel or on rear of remote. If you still have no sound, what worked for me is there's a Zone 2/Rec Out pushbutton on front left top panel by round input knob. This must be set to "Zone 2 Source" and not "Rec Out Source".to avoid diverting the signal to the Rec Out jacks. Keep turning the input select button until it reads "Zone 2 Source". Then turn on and this should route the signal to your Zone 2 speakers. srhfish