There are many ways to not have surround sound coming from your surround system.
- Be sure to use a digital connection (HDMI, SPDIF or Toslink) or a multi-channel analog connection (6 or more RCA cables for a 5.1 system).
- Be sure the channels are connected and configured in your receiver.
- Check that you have a surround signal coming into the receiver. You can do this by looking for DD or DTS signal on the front panel of the receiver. If it says PCM you are probably getting a stereo signal only.
- If you do not have a surround signal coming to the receiver you need to make sure your source is set to send the right signal type this can be found in the setup menu and is called something like Digital. You can change these until you see the right signal on the front of the receiver. It is also possible that a switch between the receiver and the source if you have one is restricting the audio.
- If you are routing your audio from the TV to the receiver this will not work for anything except the antenna input. You must route the audio from the source to the receiver directly.
- Once you are getting a surround signal you need the receiver in a mode that supports surround channels like Prologic IIx, Dolby Digital, DTS and MPCM.
- Check the surround channel levels are close to the center channel level with Avia, Goldline or a THX certified DVD.