Crackle when adjusting volume

Discussion in 'Sound Cards and Speakers' started by Laquer Head, May 2, 2018.

  1. Laquer Head

    Laquer Head Well-Known Member

    Messages:
    6,201
    Just wondering what would cause PC speakers to crackle when volume is being adjusted?

    Everything works flawlessly otherwise, just an annoying crackle when volume knob is turned.

    Speakers are Logitech's but I have no clue on the model #, but they are 2 THX marked mini speakers and a boxed woofer, (ya ya.. I know doesnt tell you alot)

    I double checked cables on both ends and at the motherboard header. I've even tried 2 different audio cables.

    Anyhow, its not a massive problem, just annoying and it hasn't always done it - only started last 30 days or so.
     
  2. porterjw

    porterjw Moderator Staff Member

    Messages:
    4,599
    Mine do it too, but they are probably 19 years old. It most likely has something to do with the knob, either a loose contact behind it or dust/grime behind the knob preventing proper contact. Are you able to take the speakers apart and clean the contact surface behind the knob?
     
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  3. Darren

    Darren Moderator Staff Member

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    11,282
    Logitech Z623? Same ones I have. They're known for this problem. I don't think there's anything you can really do, I've tried cleaning the knob on mine to no effect. Didn't take it apart though. Love the speakers but the knob is a pretty widespread problem with these.
     
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  4. Intel_man

    Intel_man VIP Member

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    5,578
    Lol... Logitech speakers.
     
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  5. Laquer Head

    Laquer Head Well-Known Member

    Messages:
    6,201
    Yeah, as I say not sure on the exact model as they were a gift one xmas. I'm also reluctant to disassemble them since the only issue is when you adjust the volume with knob, if I do it with sonic studio or whatever program it doesn't do it.

    Oh well, thanks for the input guys, I'll just live with it, as otherwise they are terrific speakers.

    EDIT: @Intel_man your attitude stinks.. lol
     
  6. aldan

    aldan Active Member

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    542
    in the old days (best i can do here)volume controls were "variable resistors",potentiometres if you will.they consisted of a fine wire wrap around a central core.as you adjusted volume the contact would move around the windings and contact more cores=more resistance=lower volume,or less contacts=higher volume.we just rapidly rotated the volume dial to clean the contact points.not one word about my sentence structure either.lol
     
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  7. porterjw

    porterjw Moderator Staff Member

    Messages:
    4,599
    In the old days (best I can do here) volume controls were "variable resistors",'potentiometers', if you would. They consisted of a fine wire wrapped around a central core. As you adjusted volume, the contact would move around the winding and contact more resistance (lower volume), or less resistance (higher volume). We just rapidly rotated the volume dial to clean the contact points.

    :rolleyes:;):oops:
     
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  8. JLuchinski

    JLuchinski Well-Known Member

    Messages:
    1,461
    Yeah that's what I did, turned them off and rotated the volume knob from min. to max. about 30 times. I have the same speakers.
     
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  9. Margrave Brandenburg

    Margrave Brandenburg New Member

    Messages:
    27
    Replace the pot. (Cleaning it won't help.)
     
  10. JLuchinski

    JLuchinski Well-Known Member

    Messages:
    1,461
    Cleaning them doesn't solve the problem but makes it a lot less worse, I wouldn't even know where to begin replacing the pot on these. Pretty good speakers though.
     
  11. aldan

    aldan Active Member

    Messages:
    542
    even assuming you could find a replacement pot.if the pot windings have dust or other crap on them then this will help.it may not fix it but it wont hurt it either.
     
  12. JLuchinski

    JLuchinski Well-Known Member

    Messages:
    1,461
    Yeah I wasn't able to find parts, maybe if I opened it up and it had a part number written on it?
     

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