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DENON AVR 688 HDMI CABLE NOT WORKING - Denon AVR688

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Posted on Jan 02, 2017

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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

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1 Answer

Flickering video with Denon AVR 1910


I had the same issue with my Denon AVR-1908.....It turned out to be the cable box, not the receiver. I would suggest you unplug your cable box, remove and reseat the cable card,HDMI cables, and finally the cable line itself. Make sure the wires are not frayed or otherwise pinched.

Good luck....

Mar 05, 2010 | Denon AVR-1908

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Denon avr-688


I have the same problem with my AVR-688, were you able to find a help?

Sep 18, 2009 | Denon AVR688

1 Answer

I am having trouble hooking up my xbox through my denon avr 688. I can get audio but no video. Help me, please.


Are you using an hdmi or a component vid from the xbox to the avr? and a hdmi from the avr to the tv? Some receivers only pass through not upscale the video. My xbox uses the component vid out to my avr so I have to also use component to my tv from my avr.

Aug 19, 2009 | Audio Players & Recorders

1 Answer

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

HDMI output from AVR-4806


You say your connected from the DVD to the Denon with an HDMI cord and the Denon to the TV with an HDMI cord and you get no DVD video? can you get the Denon setup menu? if so change the res. output on the DVD to 480p, 720p or 1080i but not 1080p

Feb 15, 2009 | Denon AVR-4806 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

1 Answer

I have the denon avr-688 - when i use the mic to auto setup, i have sound from each of my speakers, but when trying to watch tv or a blu ray movie there's no sound at all


Check your blu-ray connection. Is the HDMI cable going from the player to the receiver, then another HDMI cable going from the receiver to the television? What about your TV input? Is there a cable going from the cable converter box to the receiver's input?

Dec 29, 2008 | Denon AVR688

2 Answers

No audio from PS3.


works great, plenty of plug-ins, easy set up, but you get 2 hdmi ins 1 out. hdmis' work great one cable for sound and video but the denon avr588 doesn't accept sound through the hdmi cable.(it's noted in the manual) why not? i don't understand. so you go with optical or coaxial for audio. it works but extra cables.

Dec 28, 2008 | Denon AVR588 Receiver

1 Answer

I have a new Denon 688 7.1 CH reciever. I did a sound test on all speakers and they all worked. I hooked up Satelite rec HDMI and PS3 HDMI to reciever and then an HDMI from reciever to TV. I have Picture...


The Denon 688 does not process sound via HDMI, you have to run a seperate cable to get sound. Choices are analog audio jacks (red and white) or either a toslink (optical) cable or an rca digital audio cable.

Cheers!

Mar 15, 2008 | Audio Players & Recorders

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