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  1. #1
    tp
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    Help, Balance doesnt work, No sound in one speak

    Hi All,

    This may sound silly to some of you, but I have a Harmon Kardon stereo reciever from around 1991. Model # HK3400 stereo reciever.

    The right speak doesnt have sound, if i jiggle and move around the balance knob, it gets static and at times starts to get the sound and volume it should but never lasts. I hardly ever used this reciever and hope it's just a simple thing.
    Can anyone advise me what it could be and how to fix it?


    Thanks
    Tim

  2. #2
    Forum Regular blackraven's Avatar
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    Sounds like oxidation of the balance knob.. Take it apart, and buy some tuner cleaner from radio shack and clean the contacts on the knobs. Its a common problem on older stereo gear. I have a vintage 1976 integrated amp that I need to clean once a year or so.
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  3. #3
    Chicago IL
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    It may sound funny but I had this problem with the volume knob and I cleaned it with hand sanitizer! It is still working great i never had any problems after that!

  4. #4
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    Balance pot cleaner

    Find Deoxit instead of the Radio Shack type sprays. They leave a guuey residue, where Dexoit is a red colored spray which after a few turns actually starts to cleans the carbon traces and wiper.

  5. #5
    One of Jerry's Kids Jim Eck's Avatar
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    A second for DeOxit.

    Jim
    Fairchild 412-1B SME arm Pickering XSV-3000
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  6. #6
    Forum Regular harley .guy07's Avatar
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    I have heard that Deoxit is pretty good stuff. I have a friend in Witchita that plays around with vintage gear all the time and he talks about this stuff all the time. Hell I think he would put it on his pan cakes if his wife would let him. But anyway this kind of service is par for the course with vintage stuff. Anything thats a moving part is going to need TLC at some point and balance,volume, and tone controls are usually the ones that are the first to need it. My only addition to what has allready been said is that if you are going to take the time to clean the balance control you might as well clean every moving switch and control on this unit. You might have a much longer life out of this unit doing so.

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  7. #7
    One of Jerry's Kids Jim Eck's Avatar
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    Do not however use anything but air or light brush on the tuning gangs in a tuner or receiver.

    Jim
    Fairchild 412-1B SME arm Pickering XSV-3000
    Thorens Weight
    GAS Thoebe
    Grant Fidelity B-283
    California Audio Labs Delta Transport
    Paradesea DAC
    DBX-3BX-DS
    Sansui TU-7700
    Adcom 585
    Hafler Pro 500
    Tara Labs Cable
    Legacy Classic's

    Tube system Scott 299B, Thorens TD-160, Klipsch Heresy's

  8. #8
    tp
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    Alright, all sounds good to me, Where can I buy Deoxit? Is there a store I can go pick it up at? Or do I have to order it online?

    Thanks everyone
    Tim

  9. #9
    Forum Regular audio amateur's Avatar
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    I should probably get some myself seeing that I'm getting into old gear. Can you get it outside the US?

  10. #10
    One of Jerry's Kids Jim Eck's Avatar
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    I have talked to people on other boards in Portugal and Spain and they are able to get it on eBay. The Faderlube will give the controls the silky feel again after being cleaned with DeOxit 5.

    Jim
    Fairchild 412-1B SME arm Pickering XSV-3000
    Thorens Weight
    GAS Thoebe
    Grant Fidelity B-283
    California Audio Labs Delta Transport
    Paradesea DAC
    DBX-3BX-DS
    Sansui TU-7700
    Adcom 585
    Hafler Pro 500
    Tara Labs Cable
    Legacy Classic's

    Tube system Scott 299B, Thorens TD-160, Klipsch Heresy's

  11. #11
    Forum Regular audio amateur's Avatar
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    Cool thanks

  12. #12
    Forum Regular harley .guy07's Avatar
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    I am not sure where my friend gets it but I am sure you could google it and find somewhere either online or in your area that has it.

    Marantz SR5008(HT)
    Nu Force P8 Preamp (2 channel)
    Pass Labs X150.5(2 channel)
    Adcom 545 mk2 power amp(rear channel amp)
    Spatial Audio M3 Turbo S Mains Speakers
    Dayton 8" HO custom sealed subwoofer(2 channel)
    Yamaha NS-c444 center channel
    Emotiva ERD-1 surround speakers
    JBL e250p subwoofer highly modified
    Samsung 46" LED TV
    OPPO BDP-83 blue ray/multi format player
    ps-audio NuWave dac (2 channel)
    Dell I660 music server running fidelizer windows 8 audio optimizer
    PS Audio Quintet power center



  13. #13
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    Deoxit Supplier

    http://www.partsconnexion.com/cleaners_caig.html
    They are located just outside of Toronto.
    You could check with the other parts suppliers also.
    I deal with them and tubestore in Hamilton.

  14. #14
    Sure, sure... Auricauricle's Avatar
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    I trust you have turned the balance knob back the other way...right?
    "The great tragedy of science--the slaying of a beautiful hypothesis by an ugly fact."--T. Huxley

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