TV has trouble turning on. It seems like it really wants to turn on, I hear a thumping sound over and over again (I notice the fiber optic input blinks at the same time as sound) It takes about 40 minutes or more to turn on. So I let it try for a while, then turn off for 5 seconds, on for a while, off for 5 blah blah blah, eventually it will turn on. WTF?

Connect an HTMI cable to the leftmost (viewed from the back) HDMI jack to your TV's HDMI. Then connect the optical cable from the TV to the AV4 optical jack on the 573.

You may need to configure your TV to use the HDMI jack you plugged into (if you have multiple HDMI jacks.)

That should be all you need to do.

This is why HDMI is so valuable, its an all-in-one communication process, and if you have the ability to use that format, the problem will be solved. In some cases Fiber has been known to fracture and no longer communicate. With the fiber inserted into the out port of the TV, you should see the tiny light at the opposing end. No light, no communication. The receiver accepts the fiber light and it will not glow by itself. Its receiving the signal , not sending a signal. Turn the fiber cable around to check continuity. Check the receiver and make certain the settings are correct.

Hi Louis,
The audio circuitry is located in the main board. Try unplugging the TV for a while and try again if the audio comes back.
I would suggest to check all your settings in the audio section first and if everything seems OK then the main board should be replaced.

The Dolby digital signal is outputted only through the Optical or Coaxial socket of the CBL box. you will have to get an optic fiber or coaxial cable depending which cable box you have and connect it to the digital input of the Denon receiver. The Denon's digital input are already assigned at the back. Eg: Optic input might be labeled CD so if you are connecting the CBL box to the optic input remember to select CD on the Denon to hear the cable sound, same goes with the coaxial input.

Your DVD audio is sent directly to your receiver - not to you TV. That's why you can hear the audio on your stereo. The TV audio is not being sent anywhere - it is "stuck" in the TV and is amplified and sent to the TV speakers. Since the TV speakers are off, you don't hear anything. In order to listen to the TV audio on the stereo system's speakers, you need to send it to the receiver.

You need to have a pair (left + right signals) of audio cables (assuming you wish to listen to stereo sound) from the TV's Audio Output jacks to a pair of Audio Input jacks on the receiver / amplifier. You can use any unused input - CD, Video, Tape, Sat, etc. If you use Tape or Sat audio inputs, when you wish to listen to the TV audio, you must select the Tape or Sat input on the receiver.

Do not send more than one signal to a set of inputs on the receiver. Typically, a CD, DVD and Sat inputs offer two or more of the following types 1) Analog audio. These are the older RCA jacks that have been around since the beginning and require separate cables for left and right channels. 2) Optical inputs. This is the newer digital interface that provides for Dolby Digital (and others) format sound over a single fiber optic cable. 3) Coaxial inputs. This jacks looks like an RCA jack, but usually has an Orange ring - instead of the Red & White rings that analog RCA jacks have. They use a single coaxial cable. 4) HDMI input. This jacks carries both digital video and digital audio signals. If you are using an Optical input for the DVD on the receiver, do not use any other unused analog or digital inputs associated with the DVD to "piggyback" another device like a CD , VHS tape, etc.

I hope this helps and good luck! Please rate my reply. Thank you.

You have to configure your DTV input to use optical audio instead of analog dtv audio (red/white plugs). Input assignment should be described in the manual. Come back to me if you have still problems with it.

did you figure it out? I bet your problem is the same as mine NOT HDCP complitant.... its gettting a signal from the bluray that can not be accepted... research HDCP compliant... my ONKYO does the same thing...

you can run a fiber optic cable out of the tv into the surround system if the sytem has a fiber optic input, or your tv should at least have red and white rca cables for audio out, then you just pick any input on the surround sound and any audio from dvd players ect thats hooked up to the tv will be sent through that one input on the surround sound. The only thing you'll have to do is turn the volume up or down on your sound system.

only the hd channels get great surround sound. if your tv has an optical audio out and your surround has the optical in input. then i suggest buying a fiber optic wire for the audio you'll hear a big differance. just hope that the audio stays in sync unlike my cheap *** koss system