Question about Denon AVR688

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I have a Denon AVR-688 and just got an Apple TV, which only has HDMI and optical audio outputs. I've got the Apple TV connected direct to the TV since the receiver doesn't support audio playback through to the speakers (or does it? can't get it to anyway). The optical audio I have connected to the optical port 1, which is defaulted to "CD." When I set my input source to CD, I get no sound. I must be setting something wrong. Can anyone help me?

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Posted on Jan 02, 2017

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SOURCE: no HDMI video output from AVR-588 receiver to plasma TV ???

You can also use a digital coax cable (color orange) to go into coax 1 for DVD coax 2 for cable box. Just make sure to set the coax in input settings. The coax cables are a little cheaper than the optical cables and work just as well.

Posted on May 10, 2008

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SOURCE: Denon AVR 2800 digital hookup to PS3

If your TV has an HDMI input, hook up the PS3 w/an HDMI cable to the TV. This will give you a high def picture (set up the PS3 to output the max resolution your TV displays). That will take care of the video side.

Next hook up an optical cable from the PS3 to the receiver. In the PS3 menu, you have to change the audio settings to output the sound via the optical cable.

Finally to get sound out of the receiver to the speakers, you have to setup the receiver source input. For example if you setup the PS3 to play thru "VCR" input, then you have to make sure the VCR input is setup to use either optical 1 or optical 2 for sound (whichever one you have the optical cable plugged in from the PS3).

  • I found this solution on a different site... it worked for me. I needed to change the sound settings in my ps3 to optical... then i selected dolby 5.1.... that took care of my sound.

Posted on Dec 24, 2008

  • 119 Answers

SOURCE: Denon AVR-688 Dolby Digital issues

IT IS ALWAYS BEST TO CONNECT ANALOG AUDIO IN ADDITION TO THE OPTICAL, COAXIAL OR HDMI AUDIO CONNECTION. IF USING OPTICAL OR COAXIAL CONNECTIONS BE SURE TO CONFIGURE IT IN THE RECEIVERS DIGITAL ASSIGNMENT AREA IN SETUP.
ALSO, ON THE FRONT OF THE RECEIVER IS AN INPUT MODE BUTTON, PRESS THIS BUTTON UNTIL AUTO IS DISPLAYED

Posted on Mar 03, 2009

  • 1 Answer

SOURCE: No video on Denon avr 688

After days of frustration the real problem was with the cable box. It needed a firmware update. Following forum advice I disconnected the cable box power cord for a few minutes, reconnected it, allowed the cable box to reinitialize. Turned off receiver and TV. Turned TV back on and set it to HDMI connection, turned on receiver and all worked fine. Great picture and sound.( Needed to buy an optical cable to go from the cable box to the receiver to get sound from the speaker system. )--the dirtybird

Posted on Apr 15, 2009

  • 1 Answer

SOURCE: No audio running TV through Denon AVR 1910

I had the same problem. You're not doing anything wrong. the thing is you can't (I don't know why but the owner manual says it) have sound going to your tv AND your HT speakers when you're using HDMI. You should try going to input setup, choose hdmi audio out to your TV instead of the speakers, and then run an optical cable from your satellite to your receiver, assigning it to the TV/Cable input.

Posted on Jan 20, 2010

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RE: Denon AVR 3300 - I cannot get the system setup menu to display on Phillips P50PFP5332D tv screen? All connected components work and sound great, but I cannot see Denon's Setup menu on tv to a


I understand, it's something I've misunderstood on my denon avr-790 as well when connected to a samsung 8000 series led tv.
The answer isn't in the receiver's settings (you can be on whatever source you want on the receiver end when toggling the menu). You need to toggle through the tv's sources to find the menu (usually found on hdmi 1). I've spent towards an hour recently troubleshooting only to find that it was the tv's source that wasn't set properly and I was trying to change the receiver's settings instead of the tv's source.
Hope that helps!

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You need to assign the optical input to the video input you are using. It's under the 'Input Setup' menu.

Or use HDMI, it will output the audio thru the HDMI connection. Once again assign the input under the Input Setup menu (press the Menu button on remote to access setup menus)

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Hi, just connected a Blu Ray player to my sytem. I connected the player via HDMI direct to the TV and the audio output direct into Optical 2 on the Denon. Problem is that there is no sound. Also...


We can't make assumptions about proper and complete setup if you don't explicitly mention the steps involved, so... did you assign and select the digital inputs properly?

http://www.retrevo.com/s/Denon-AVR-2803-Receivers-review-manual/id/363bh829/t/1-2/

Page 23 etc

BTW: I concur with your decision to send the video directly to the TV from the BD even though Denon and others expect it to make a hop through the receiver first.

Get into your BD and find its audio out setup. Make sure its settings for digital audio output bit rates, speaker presence, type, size, distance and bass-handling are set correctly.

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Your tv needs to have an HDMI out. If it has just connect that to the Denon. Tv might not have HDMI out so connect an optical cable from the tv's optical out to the Denon's optical in.

Sep 29, 2010 | Denon AVR-2807 Receiver

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Can you tell me what are the functions of the two hdmi inputs, and the one hdmi output ,as my cable only works via the tv to the dvd player and a coax from dvd to the coax on avr, so hdmi on avr is...


Let's treat this as TWO functions - audio and video.

Your best video would be HDMI output (audio & video) from the cable box and EACH other video source (BD/DVD) directly to your TV and receiver. But, I'd still WATCH the video from the direct TV connection. The fewer intervening cables and electronics, the better.

Your best audio performance will come directly from each multichannel source via a digital (HDMI, coaxial or optical) cable to the receiver. I would LISTEN to audio through the receiver for best quality.

See a trend here? TV's best at video; receiver is the master of audio.
And neither one adds much by handling the other. Usually the opposite.

You mention coax. Do you mean coaxial digital audio????? As coax is also shorthand for the thick black cable bringing video to most cable boxes, connecting antennae to TV's and such.

You don't actually define what the problem is. Only YOU can be the judge of what 'better' is.

There are a multitude of (mis)settings you should master before declaring a hardware problem. I'd dive into the manual.

Aug 03, 2010 | Denon AVR-1508 Receiver

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No video on Denon avr 688


After days of frustration the real problem was with the cable box. It needed a firmware update. Following forum advice I disconnected the cable box power cord for a few minutes, reconnected it, allowed the cable box to reinitialize. Turned off receiver and TV. Turned TV back on and set it to HDMI connection, turned on receiver and all worked fine. Great picture and sound.( Needed to buy an optical cable to go from the cable box to the receiver to get sound from the speaker system. )--the dirtybird

Apr 14, 2009 | Denon AVR-3300 Receiver

1 Answer

Denon AVR-688 Dolby Digital issues


IT IS ALWAYS BEST TO CONNECT ANALOG AUDIO IN ADDITION TO THE OPTICAL, COAXIAL OR HDMI AUDIO CONNECTION. IF USING OPTICAL OR COAXIAL CONNECTIONS BE SURE TO CONFIGURE IT IN THE RECEIVERS DIGITAL ASSIGNMENT AREA IN SETUP.
ALSO, ON THE FRONT OF THE RECEIVER IS AN INPUT MODE BUTTON, PRESS THIS BUTTON UNTIL AUTO IS DISPLAYED

Jan 03, 2009 | Denon AVR688

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Connect your blu ray player directly to the HDMI input of you Plasma and watch HD video....
and connect the 5.1/7.1 sound thru the optical or the coaxial link directly to your AVR 3805.
You will not loose anything on the Blu-Ray.
The sound is best processsed by the AVR3805, while the video, which is the real upgrade (BluRay) in terms of resolution of picture would be processed by your plasma.

Connect and Enjoy

Dec 16, 2008 | Denon AVR-3805 Receiver

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No HDMI video output from AVR-588 receiver to plasma TV ???


the avr-588 apparently cannot carry sound via hdmi - don't know why; just what i found out from the geek squad at best buy; solved the problem by connecting optical cable from cable box to receiver; be sure to change the input on the receiver for opt-2 (system setup >2 inputs) to correlate with tv

Feb 16, 2008 | Denon AVR588 Receiver

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