Question about Sony SA-WX700 Subwoofer

3 Answers

No sound from speaker

After I unplugged the sppeaker from the wall socket and plugged it back in after I moved it to another location, the speaker no longer produced sound. I opened it up and it looks like a resister is burned out. I need to find the value of it so I can get another one and replace it. Any idea where I can get the value of it. It is resister number R830. Thank you!

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  • Anonymous Nov 22, 2007

    Tried connecting from receiver using regular speaker wire...get no sound at all. Is there a fuse or anyting of that nature in this product?

    Sony SA-WX700 Subwoofer

  • Anonymous Dec 15, 2007

    When you turn on speaker the power indicator light comes on green and stays on for about 5 seconds and the goes back offf. you can hear the power on relay click on then off.

  • Anonymous Dec 21, 2007

    I have the same problem with the same parts burned, what is the cause and what can i do to repair this.



  • martini2055p Dec 21, 2007

    I am experiencing the same problem with this subwoofer and found the same resistors burned, what can i do?



  • Rbnot Dec 28, 2007

    Same problem; power is on (green LED) but no sound. Confirmed that it's not the interconnecting cable but that's as far as I've gotten.

  • quique69 Jan 02, 2008

    I have simillar symptoms. One day the fairly new wolfer stopped working. I have power to it, but no sound. Most of the postings mention a bad resistor. How do I determine if this is my rootcause, and where do I go about getting a new one if that is the case?


  • sloney Jan 07, 2008

    Same problem. One day it worked, next day it didn't. Tried different wires to the receiver. Power light is on, no sound.

  • METTLEHED2 Apr 08, 2008

    I have R830 burned as well as capacitor C860 next to it is dead.
    anyone have a schematic with these values? Mine are both so burned I can't read them.

  • Cyno May 27, 2008

    Same thing, unplugged, moved to another room and sat for a week while flooring work was done, moved back, dead. Nothing seems burned, anyone find a schematic? If someone is looking for a resistor value still, I can probably still read mine.

  • mopar1 Jul 03, 2008

    sony sa-wx700 power but no sound. fuse or resistor? have done nothing yet

  • schumbler Aug 07, 2008

    I have the same problem with my sub, it just quit working one day. I dissassembled it and it appears that the board is burned near one of the fuses. My brother bought the same sub after I got mine and his did the same exact thing 3 days after mine died.

    Sony has some quality issues, every Sony product I have ever owned has had problems, Camcorder, Trinitron TV, Car Audio unit and Rack Style Home Theatre system. I dont think I will by anymore sony products.

    If anyone can reccomend a fix for this that would be appreciated.

  • Anonymous Nov 10, 2008

    7no sound

  • Christopher Rafter Dec 23, 2008

    Had the same problem. Sub would turn on, heard it click, no sound. Opened it up. Lots of screws. Don't be scared, just keep em in a cup. Detach the ribbon cables to get at the main board. I found that C860 was scorched. Replaced it with a 0.1 uf ceramic cap from Radio Shack (the actual value of the bad component was 0.082 uf). Had to de-solder the old one and solder in the new one, but it works again. Thanks!

  • elteez Dec 25, 2008

    Blueliar, It's been broken for awile. Saw this post thought i would check it out. Sure enough the # C860 is Burned up. Now I guess I'll have an Extra Sub lol..Thanks

  • tlnphoto Jan 15, 2009

    I have the same problem. This is the second subwoofer, same model that has done this. They seem to last 2-3 years. I took the cover off the circuit boards and didn't see anything burned. I guess I need to look at the bottom of the boards. Any solutions out there, other than not to buy Sony.



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Direct from Sony:

c860 is Part # 113616400 $2.14
r830 is Part # 121284900 $2.14

Posted on Dec 29, 2008


Replace R830 and 831. They are 4.7 ohm 5% 1/4w fusible.

Check thermisitors THP 801 & 802.

c860 is listed as 082 mf 5% 50v. This was changed but I dont have the new part number.

Posted on Apr 28, 2008



Posted on Nov 29, 2007

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