Question about Sony STR-DE575 Receiver

1 Answer

Center and Surround Channels Inop

Had the receiver for years, but not setup in a 5.1 configuration. I had use it mainly in 2 channel or Left Right and Center Channels. Finally got the rest of the speakers and cabling in place and discovered the center channel no longer worked. Didn't worry too much about it because everything else worked and I just redistributed the center channel to the L and R fronts. A few months later I installed a sub. All sounded great for a week or two. However, now I get no sound from the surrounds as well. Sub and fronts sound great. Could I have blown a fuse or something else? Any other ideas? I do plan on replacing the unit, but was hoping it would last another 6 months to a year. If it needs to be repaired, then I might as well just get a new one. Any advice or help is greatly appreciated! Thanks!! ~D_D

Posted by on

  • Chris Myers Jun 06, 2007

    Thanks for the quick response!

    Looks like I'll be getting it repaired!

    ~D_D

  • Chris Myers Jun 07, 2007

    New development! Surround Channels working again.

    They apparently work today. Though I cannot explain why. When they failed, I tested using the receiver's test tones as well as the DVD's THX Optimizer.

    Center channel is still inop. Any additional thoughts as to what this might be? Should I still have it looked at?

    Thanks!

    ~D_D

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  • Master
  • 934 Answers

Even if it were a fuse, a blown fuse is merely a symptom not the solution. From the symptoms you've described the AMPs are the most likely problem. They are mounted to a large aluminum heat sink usually about center of the main board. There are several and they are a task to remove and replace because the entire board has to be removed... However, it's not too costly a repair and for a qualified shop something that can be done in a couple of hours - including testing. If you like the receiver get it fixed. Compared to most digital receivers today it's probably cheaper to fix this one than buy another. And a good repair shop will add years more life to that unit... Hope this helps. Bill

Posted on Jun 06, 2007

  • William Rayburn
    William Rayburn Jun 07, 2007

    If it's not working one minute and working the next it could only be one thing - poor solder joints on the components we discussed...
    If you can get to the bottom of the main board that would be too difficult for you to spot yourself... And if you're handy enough with a solder gun touch them up yourself by reflowing some new solder over the connections..
    Good Luck
    Bill

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