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Centre and left speaker cutting in and out

I seem to have the left speaker not working at all and the centre speaker cutting in and out with a clicking noise. Any idea's ?

Posted by Kevin Minchin on

  • Anonymous Nov 15, 2007

    I have a similar problem in as much as my left surround channel does not work.

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Anonymous

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Hi. I have a SONY STRDB930 receiver and the rear speakers started cutting in and out, with a clicking sound. Eventually, the centre channel followed suit. I turned the receiver over and removed the slotted panel on the bottom. This allows you to access the circuit board, where you will find the solder joints belonging to some blue relays that you can see down on the bottom if you shine a torch in from the top. Check these, as I found 4 of them appeared to have broken. The solder blobs should appear shiny, without any dark ring around the pin. If they look dodgy, re solder them. I did this, and it appears to have fixed the problem, at least for now. These relays are what is clicking, and they turn the speakers on and off. If the voltage supply to the coil of the relay is interupted, by a faulty solder joint, for example, the relay will cut out.I hope my solution is not too late for you, I have only just gone online recently.

Posted on Sep 15, 2008

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13. Turn on sound on your speakers till desired level and enjoy the experience!

If you have still some problems, these can be then related to the drivers installed on your computer, please check therefore what motherboard do you have, if there is proper sound drivers installed. If not, go to the site of our motherboard/sound card manufacturer and install relevant drivers.

Please do not hesitate to ask me if you have any addtional problem related to this particular issue.
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STR-DB930 Receiver

Hi. I have a similar problem, where the rear and more recently, the centre speakers cut in and out. The relays that connect them click on and off rapidly, like morse code! Annoying, especially losing the centre, as in a 5.1 mix the centre carries most of the dialogue. The voices will be very hard to hear without the centre speaker. I tipped my STRDB930 over, and removed the slotted panel under neath. This gains access to the under side of the bottom circuit board. There, you will find the solder joints of the 3 bottom relays, the fourth being mounted on a narrow strip of board above this. Shine a torch through the top onto the blue relays, and you will see where the solder joints are. I noticed that 4 of these joints looked like they were broken, so I re-soldered them. The centre seems ok now, although it's too early to tell. My receiver still clicks, but if that is comming from the relay mounted higher up, I don't know how to gain access to this easily. Hope this helps.
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