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Could be many things - I know, bad answer. There is no simple answer or fix.
Without more info one can only speculate.
Please determine and answer as many or all of the following so that we can help.
1) What is the make and model number of the Surround sound unit?
2) What is the make and model of the DVD player?
3) How is the DVD player connected to the Surround sound unit?
3a) Is it connected via an HDMI cable?
3b) Does the DVD player have regular stereo connections that you are using (we call these analog audio connectors)?
3c) does the DVD player have digital audio outputs that are connected to the Surround sound receiver?
4) Did the DVD player EVER make sound?
4a) if yes - what changed?
4b) if yes - does this happen with different discs?
Now some general points.
I'll assume that the other sources do work and play sound through all speakers when they are supposed to play sound through all speakers.
Then - I'll assume that without changing anything else you select the DVD player input that used to make sound but doesn't now.
Problem could be the encoding option that you have selected when you play the disc.
Many DVD's and Bluray's have audio options that you can select from the disc's main menu.
Dolby digital is the most common - also known as AC3.
Some discs have another digital audio track called DTS.
Not all surround receivers can decode all formats.
Even if your surround receiver claims to be able to decode AC3 and DTS, they will not if you don't connect the correct cable to the receiver and usually map the input to the correct digital audio connection that you are using OR if your DVD player is not capable of outputting all formats.
There are many different ways to connect the gear and many different ways one can configure correctly or not; all contributing to whether you get sound or not.
So in the above example - by selecting DTS, you do not get any sound - then try another audio track option. Basic stereo usually works (also know as PCM - which is audio like a CD).
OR maybe you never properly configured the audio properties of the DVD player.
Go into the DVD's menu or set up options and see what you find but make sure you know how the DVD is connected to your surround receiver!
As you can see - there is no simple answer without a lengthy Q and A exchange first.
Hello, it sounds to me like the receiver doesn't support the sound format being sent from the blu-ray player. This is because the blu-ray disc would have HD encoded sound such as DTS HD Master Audio or Dolby True HD. Most receivers have not been fitted with these sound formats untill quite recently. The reason for the menu sound playing correctly would be for the PCM (Pulse-code Modulation) which sends simple two channel digital sound supported by all digital receivers. It may be possible to use Dolby Pro Logic or similar formats to give a surround feel, but the only way to get true surround sound in this way would be decode the sound externally and input it through several phono cables into the multichannel input, however blu-ray sound comes in 7.1 so the receiver would need to be able to accept this to get the full effect. If it is possible, see if the blu-ray player will allow downsampling to a surround sound format that your receiver can accept such as Dolby Digital or DTS. Hope this helps.
I believe he avr-5 has 6 channel inputs, what you will need is a dolby digital 5.1 and DTS outboard surround sound processor, say an item as the Technics SH-AC500 decoder, a Harman Kardon Signature 2.1 DTS version outboard processor/preamp, and many others on the market by different manufactors, Run the discrete audio outputs from the Processor into the AVR 5`s 6 channel inputs, select 6 channel input or DVD inputs on the receivers selector and your good to go. Be sure you are playing Dolby Digital 5.1 or DTS encoded material.
Not so much an answer more a shared problem with a slight insight.
On the Panasonic manual page 40
It states the following:
This unit can decode the surround signals received through cable TV box, digital broadcasting or satellite broadcasts. Refer to your equipment’s operating instructions for details. Only Dolby Digital and PCM can be played with this connection. So it sounds like the SA-PT850 unit will decode DTS from an internal source ie DVD but not from an external source ie ps3 or WDTV which is a shame because I own a WDTV. The solution for me is to convert the dts to ac3 (Dolby digital) which works great. But not sure if this is an option for you.
have you turned it on from the dvd menu the easist way to tell if you have is there will be little speakers that light up on your amps screen (more than two) when the movie is playing (not The menu) Not all movies are encoded in DTS hopefully this helps
If it is a new DVD that may be a problem, as signal changes may be frustrating this old machine... but it is likely the cabling from the DVD player to the reciever. Are you on the right channels/settings? is the optical cable and digital cable recieving digital output from your DVD player? Try changing those settings and you should be in good shape
Thanks! good luck!