Question about Sony DAV-S400 System

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No surround sound(headphone theatre mode)

Hey guys! well i wrote to you a week or so ago, about my sony dav-s 400 being stuck in headphone theatre mode, i followed the instructions and re- soldered the dry joints i could find, well actually, the only thing i could find was the brown capacitor was loose. so i've soldered it back in place, being very careful, and still no change, could it be something else? cheers, mark.

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  • brettrigby10 Sep 09, 2008

    I have the same problem with my Sony DAV-S400. It seems if I push the back of the unit in (requires some force) it "clicks" and I get full surround sound back.

    I've taken the unit apart, but see no obvious culprit; all the solder looks in good condition.



    I'm going to take the unit apart once more and have a look, I suspect
    that it's the back panel with all those connections that is the
    problem. It may be a simple solution, like tightening / loosening the
    screws.



    Brett.

  • arsenal30 Nov 18, 2008

    same problem, resoldered the capacitor and worked fine, until i replaced the cover, same problem again.

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Same problem here - I also had a very loose brown capacitor, almost completely coming away from the amp board, so I soldered it back and I haven't had the problem since. I used a good amount of solder too. I also put a spot of solder on the headphone to amp board connections at the board end. As I say, so far, it has been working perfectly. Now I just need to find out how to change the laser unit so I can play SACDs and I should have a fully working unit at last !

Posted on Nov 27, 2008

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Hi, i am having the same problem right now, but when
i wiggle the little connector from the headphone on the mainboard it clicks to normal mode, so the connector is loose
and i think thats the whole problem.
i suggest that you resolder(am i spelling it right?)
the connector and it will be fixed.

cheers

willem

Posted on Jul 25, 2008

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In my case, I followed the advice of others and took the thing apart. On the main amp board there is a large brown capacitor. Mine had come completely loose, so I soldered it back in place with a good amount of solder to make sure the contacts were ok. I also dabbed some solder on the headphone connectors on the same board (just follow the wire from the headphone socket to the board). Well, when I put it back together and tried it again everything worked perfectly, and it has so far remained free from the error. Hope that helps !

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