No sound in surround modes

there are 2 channel modes on your reciever, as well as surround modes, and it sounds like you have changed modes by accident. just open the little door on the front, and take it out of 2 channel mode

Try setting it first on surround mode because it is normal for the rear speakers not to come on when it is the surround mode is off. For the center speakers make sure it is hooked up properly. Follow the instruction if you have one. Lastly I never heard of center speakers have two speakers in it but if it does and you only have one set of wire to it then one of the speakers is no good.

I don' know what type of system you have, but try to switch system to "SURROUND" mode, or "DSP" mode.

Here you go buddy:
http://www.docs.sony.com/release/STRDE685.pdf

refer owner manual page 46-51, try different surrounding sound modes.
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it could be you need to put it in surround mode

Speaker relays have oxide on the contact points. Open up all the speaker, spk, relays and remove the oxide layer formed on the 12 contact points. Those 3 relays are on the spk terminal board. You can located it easily. It just mounted next to spk output, a horizontal board.

when the stereo or mono listening mode is selected only front speaker and subwoofer produce sound--------make sure that speakers are configured correctly.
and you select surround sound in listening mode.

Hello sweetnikki1,

The Altec Lansing AVS500 are 4.1 channel speakers, meaning 4 speakers (front, rear and 2 satellites) and a subwoofer.

1. Make sure the rear and/or center/sub audio cable is plugged in to the correct port. On most surround sound cards, the rear audio port is black, the front audio port is green, and the satellite cords are similarly color coded. The output from the sub to the front right satellite is a heavy-duty cable that immediately stands out from the rest. This cable is thicker because the right front speaker has most of the system controls on it: power, volume, and surround volume. If you do not have a surround sound card, make sure you obtain the proper adapter or use surround sound emulation if your speaker system offers it. If you are not sure if you have a surround sound card, please check with the manufacturer of your sound card for details.

2. Make sure your sound card supports the same amount of channels as your speaker system contains. For 4.1 systems, it should have a front and rear speaker jack on the card. The card should be properly installed and configured. Please contact your sound card manufacturer for details. If you do not have a surround sound capable sound card, on the left side are the sub level control, the AC jack, satellite outs, and a sound mode switch. With this switch you decide between Gaming and Stereo. In Stereo mode, the normal stereo signal is sent to both the fronts and the rears. In Gaming mode, the speakers use the four-channel signal from your soundcard. Hence if you just hav the regular sound card, do not connect the satellite speakers and use Stereo mode.

3. You can also use an adapter to split the signal for the front and rear speakers. This type of adapter is a 3.5mm male to 2-3.5mm female jacks. You can purchase this adapter at your local electronic store. Please refer to your manual if you do not know if your speaker system can emulate surround sound.

Hope this helps..

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IrishDruid

I installed my soundcard which is the sound blaster SE audigy but when i try to test the sound i see that it does not sound separately.What i have to do to make them sound saperately when i'm testing it ?