Question about Bose LifeStyle 5 Series-III CD Shelf System

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Fix to issue where no output from fixed outputs but headphone output works

Hi David_77,

I saw you suggested replacing R428 in a post you made to the problem with Bose Lifestyle 5 system not outputting from Fixed outputs but the headphone output worked fine.

I have a similar issue but cannot track down R428 on the boards in my system. Is it on the underside of the board with the display attached? I cannot find it on the top. Perhaps there are different rev's of the system that may not contain R428.

Any help you can offer would be very muxch appreciated.

Kiwi Jeff

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  • gunner-al Nov 24, 2008

    can any one please tell me were to find R428 resistor on bose lifestyle 5 music centre unit, i have no sound out of it, but sound out of the head phones ive checked up its says it could be a blown R428 resistor but carnt find it any were. is it in the cd unit or the amp unit can u please tell me were to look for it and what unit its in, thanks alan u can email me at

  • Kiwi jeff Nov 27, 2008

    Thanks Dave, you have been very helpful.

    For others that are still confused. The resistor is on the underneath of the main board (not the display board) in the music Centre (not the acoustimass sub). The jack socket Dave refers to is the green double socket labeled System Control on the back of the music centre.

    The trick is finding the right resistor. I have not tracked it down yet but intend to look closely over the next few days.



  • passion4JC May 11, 2010

    Please send me a picture of this R428. Thanks in advance.

  • DanLisa Pipkens May 11, 2010

    What bottom jack socket?? Is it on the display board or the large one?

  • gunner-al May 11, 2010

    sorry to bother u again is the r428 resister in the cd music system. or is it in theacoustimass speaker power system amp.also witch jack socket is it. or have u got a photo of were it is.thanks alot


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Fix to issue where no output from fixed outputs bu - 07e570b.jpgI took a picture of the board on my Lifestyle 5. Could someone point out which is R428? Thanks.

Posted on Feb 18, 2009

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Hi, If you go to the bottom jack socket and trace the wiring back it should take you to R428, one end is connected to the tip of the jack socket the other to the + 10 volt line

Posted on Nov 23, 2008

  • David_77 Nov 27, 2008

    Hi Jeff, the resistor is on the underside of the main PCB not the display board, it is in the corner near the jack socket.. Please send me you e mail address and I will send you the PCB layouts of the two versions I have.


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