I have a Denon AVR-2807 and when I put on TV mode, the sound and the picture flashes for 2 secs and switches off and then again flashes for 2 secs and switches off. It's on TV HDMI mode and Dolby Digital. It flashes Digital on the left of the AV panel when the picture and sound comes on. DVD model works fine, TV mode which is hooked up to cable flashes. Any ideas what is causing this?
Change the hdmi cable and try. If not then you have an hdmi fault module.
SOURCE: Denon AMP AVR 2807 no sound from Television
OPT1 is a digital optical input to the amplifier, What do you have this pluged into ? as this signal will only go to the amp.
if it is from your tv to the amp then you will need to select this option of audio out in the TV menu, if available.
SOURCE: no picture with cable to denon AVR-589
Long and painful answer!!! However, in the end, you need to bypass HDMI thru your receiver and go direct to the TV. Connect Digital Coaxial or Optical for audio to your receiver. Your version of HDMI in your receiver is not compatable with today's HDMI version. Yours is 1.1a and the current version is 1.3b going to 1.4. If you want detailed info as to "why", just google "HDMI 1.1 problems" you can read for hours! Sorry for the bad news! However, it is what it is. Hope this helps. If you need further help with setup, post a comment and I can give you further help.
SOURCE: Denon AVR-2807 HDMI out signal
i seem to have a similar problem with my Denon AVR 4310CI . The output to my LCD TV just went green . On checking with some people , they suggested resetting . it didnt work . Any probable reasons
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