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.
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.
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SOURCE: I can not get surround mode on my Marantz 5200 receiver
Check surround mode on the on-screen menu of the amp
SOURCE: DVD player and receiver will not play a dvd in surround sound ?
The dvd player is responsible for reading the surround sound track, and sending it to the receiver. First make sure you are playing the surround sound track on the dvd, many have a stereo track too. Next, try another dvd and see if you can play surround sound on that one. If you can't play surround on ANY dvd I would start looking at the audio connection from dvd to receiver. Are you using an optical cable? Red, white, and yellow RCA cables? Optical will transmit any sound over only one cable, RCA cables need one cable for each channel (LF, C, RF, LR, RR, sub.) If your connections are correct, is the receiver set to play a surround sound track? Is it set in 2 channel mode?
SOURCE: unable to get surround in dvd mode but can hear thru tv speakers?
Is your DVD player hooked up to a surround sound receiver, or directly to your television?
SOURCE: my surround rear spks dont work
The rear speaker decoding has to be enabled for them to function, regardless of the media. Enter the speaker setup menu and choose "yes" for the rear surround speaker decoding.
SOURCE: connecting TV and DVD for surround sound
HDMI is fantastic in that's the only thing you need to plug in to get what you want.
You'll need two of them however. Plug one end of the HDMI cord into the HDMI "OUT" on the dvd player and the other end of it to the receiver..labeled HDMI 'IN' Then, take the second cord and do that step with the receiver back to your big screen...HDMI OUT to IN.
Surround sound from TV sources only needs a L&R audio cable connected to the receiver input labled TV or MONITOR audio IN. Unless you'd like 5.1 dolby digital or DTS from the television that requires devices that you haven't mentioned owning. In that case you will be able to get Dolby ProLogic and Pro Logic II from stereo broad casted sources on your TV.
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