Question about Sony 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.
Posted on Sep 13, 2008
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If you don't want to buy new speakers, settle for safer low volume levels.
You're going to kill that receiver driving a 3-ohm load. HTS-style speakers aren't reliably re-deployable to other electronics. Perhaps, if you have 4 speakers and they're similar you could wire them in SERIES and present a 6-ohm load to each channel.
Re-engineering the speakers themselves is, well, don't do it. It isn't rocket science but it also isn
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