Question about Sony STR-DE545 Receiver

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Surround Speakers stop working

About 1/4 of the way through a movie or listening to TV my two surround speakers stop working. My sony receiver still says I am receiving a digital sound but the two back speakers are off, even if I perform a test tone. Any ideas???

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Re: Surround Speakers stop working

I also had this problem. I was able to fix it by tightening the circuit board screws (which are used as a ground path). To avoid this in the future, I added lock washers and made a short jumper to connect all of the ground points back to the power supply.

Posted on Jan 30, 2008

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Re: Surround Speakers stop working

More then likely unit has poor solder connections. Try lightly tapping on chassis to see if you can get audio to either cut on or off with the vibration, If you can unit has intermittent solder connections probably around power amp ic701 where most of the heat is generated. I have a PDF service manual if you need it for yourself or for a technician if you take it in for repair

Posted on Jan 15, 2008

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I have had the Kenwood VR-407 since 2001. I also have a Mitsubishi projection TV, attached to the receiver. When watching regular cable TV (u-verse), I can not get sound from the rear speakers. I am using...

Most TV stations you watch don't send a surround sound mix so you won't get anything in the back speakers. DVDs generally all have a surround mix which is why it sends to all speakers. What you are experiencing is normal, Bob.

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I have a sony STR-DE897 and my rear speakers dont get sound when plugged into the surround back ports..Is there a certain setting in order for the rear surround spreakers to work? or does that mean the...

There are a few things required for the rear surround channels to operate;

1. The surround back channels must be enabled in the surround setup menu.

2. The media being played through the receiver must have audio encoded for the rear surround
channels. There are only a few exceptions to this but I'll exclude the explanation for simplicity.

3. The audio level of the speaker channels must be set high enough to be audible.

Enter the surround setup menu with your remote. Use the center button on the remote to toggle through the selections, press down on it to enter the selection.
You will navigate to a selection in the surround setup menu that says "surround back" or S/B with a selectable yes or no indication. Press on the center button to enable them.

Media like DVD or Blu-ray that has 6.1 or 7.1 channel audio has separate, or often referred to as "discrete" or "matrixed" audio intended for playback through surround rear speakers, depending on the music or movie. If your media is encoded for 5.1, then there will be no audio sent to these speakers. However, with the different modes of on-board digital processing of this receiver you can still have audio through these speakers.

Last but not least is the actual playing level of these rear surround channels. They may simply be adjusted to quietly. Enter the setup menu with remote, choose "level" and navigate to the rear surround channels. You can adjust the level up or down in 1/2 dB level increments by toggling left or right with the center button. Each surround channel can and should be adjusted independently and equally.

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