Question about JVC TH-M505 System

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SP-PWM505 Good afternoon, When I touch the power cord supply to subwoofer, it makes some loud noices. (like thunderstorm). The green light on th subwoofer goes on and off and no music. Do you think that the cord is damaged/need replacement ? or one fo the SP-PWM505 connection on the machine got damaged ? Is it easy to find a remplacement cable ? thank to advise. Regards, Yves F BRIN

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  • pattikeahey Jul 27, 2008

    changed s video cord

  • ny718 Sep 25, 2008

    i have the same promblem i have even switched jacks around the house and still nothing so i opened it up and i think i could be the fuses inside because when i turn on the dvd i hear a clicking sound inside the subwoofer but it does not turn on so it gets power but it loses it somewhere because it does not turn at all could it be the fuses ?

  • Anonymous Oct 15, 2008

    same here the cord the plugs the subwoofer to the dvd player has a bad connection on the woofer end.

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  • 1,175 Answers

MOst of the time it is the jack that the cable plugs into that has the problem. .
Also the jack is not broken but HAS broken the solder connection TO the jack.
If you know someone who can safely take it apart and solder, let them try.

Posted on Feb 28, 2008

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1 Answer

The subwoofer SP-PWM505 won't turn on.


Make sure its not set to Auto. Also check for a fuse in the back. Unplug the amp side and with the sub plugged in touch the RCA. You should hear noise from sub. Try this last. Some may say this is not good for the sub. Im in the business and never have seen it cause a problem

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WHERE CAN I BUY A SP PWM505 CABLE THAT GOES FROM MY RECEIVER TO THE SUBWOOFER? ITS A HOME THEATER


  • Here is a list of cables for your unit from Crutchfield's.


  • If your looking for the s pin DIN cable from the sub you can get that anywhere. The 8 pin DIN is a standard cord the same across the board. Here are a couple to choose from.



  • If you have any comments please feel free to leave them here.
  • Hope this helps and thank you for using FixYa.

Oct 11, 2011 | JVC TH-M505 System

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I CANT FIND A SP PWM505 CABLE


  • Here is a list of cables for your unit from Crutchfield's.


  • If your looking for the s pin DIN cable from the sub you can get that anywhere. The 8 pin DIN is a standard cord the same across the board. Here are a couple to choose from.



  • If you have any comments please feel free to leave them here.
  • Hope this helps and thank you for using FixYa.


Regards, Tony

Oct 11, 2011 | JVC TH-M505 System

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Where do i find a connector cord for my powered subwoofer model no. sp-pwm606


There are a few on eBay. Search for "JVC THM505 cable" and check the 'include description box'.

If you need the manual...

Register and download the manual for free at retrevo.com


http://www.retrevo.com/support/JVC-TH-M505J-Home-Theater-Systems-manual/id/318dj491/t/2/



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No power. Will not come on with remote or manually. Switched power cords with no luck. Green light on subwoofer off as well.


On the bottom board is an electrolytic capacitor (C975) that might have failed. The top will be convex (bulged out). Since this is in the power supply, the unit will not work. Also: Check resistor R4843 and diode D4709 for charring on the board (indicates extreme heat). I have been trying to find the value of that resistor and so far no luck. Replacing the cap brought the set to life, but there is still a problem since the sound will cut off momentarily randomly. The receiver unit is at fault, not the sub unit. So I could use some help as well!! Good luck.

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SP-PWM505 subwoofer does not stay on


Well i had exactly the same problem, my sub turned off right away when i turned the whole thing on. Well i opened the subwoofer and was trying to find out something unusual, i took out, i believe, internal amp, well, whatever that thing is, under the lid. Which one is screwed with 6 copper screws, so you unscrew those screws, lift that lid and that whole board comes out. On that board i find something like burn around one of the parts.

http://www.flickr.com/photos/28004328@N04/3333561417/in/photostream/

you can see it in the pick, the part q2902, then i contacted JVC. At the beginning they said i need to take the whole thing to service center and so on. But later i made them to tell me what kind of part that is, so here :http://www.jvcservice.com/store/ProductDetail.asp?Part=KTC3199/GL/-T
bought soldering gun in home depot for $15, returned after i was done. And that is it, just have to replace it, but total cost only $12 ($5 part +$7 shipping)

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