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behringer ub1832fx pro replacement main faders

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  • #1

    behringer ub1832fx pro replacement main faders

    Got a mixer I need to replaced the main faders in scratchy and cleaning hasn't help. i have the schematics and still can't find vr115 and vr116 on them.
    I see these at Audio labs but without a service/parts list i am unsure of which to choose.

    thanks,
    nosaj
    Attached Files
    Audio lab of Ga
    https://audiolabga.com
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    soldering stuff that's broken, breaking stuff that works, Yeah!
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  • #2
    pg.11 of the Rev.F schematics where it says 'main mix'. Looks like they are mono faders so the cheaper ones on that Audiolabs page.
    Originally posted by Enzo
    I have a sign in my shop that says, "Never think up reasons not to check something."


    ​

    Comment

    • #3
      Ra6044f-20-15c1-a10k-01g
      you can put in a double

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      • #4
        Thanks a bunch guys.
        nosaj
        soldering stuff that's broken, breaking stuff that works, Yeah!

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        • #5
          Replaced left and right. It is still scratchy on the left side. c232 c244 c234 tested ok on an esr tester. is it possible for one of the ic's to be making the scratchy noise?

          Thanks,
          nosaj
          soldering stuff that's broken, breaking stuff that works, Yeah!

          Comment

          • #6
            Is there any DC on the offending fader?
            Edit: Also, an ESR test will show if a cap is drying out or has high ESR. It won't show you if it's shorted or leaky. Short your ESR tester probes together, look at the reading, and you'll see what I mean.
            Last edited by The Dude; 03-07-2024, 01:23 AM.
            "I took a photo of my ohm meter... It didn't help." Enzo 8/20/22

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            • #7
              Oh for some reason I thought the Peak ESR70 plus did leakage. I'll crack it back open and check for DC on the fader.
              Thanks again nosaj
              soldering stuff that's broken, breaking stuff that works, Yeah!

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              • #8
                Only showing like .005 , But since i have it open I'll go ahead and change c232 c233 c244 c245
                nosaj
                soldering stuff that's broken, breaking stuff that works, Yeah!

                Comment

                • #9
                  Score for The Dude, replacing the caps quieted it down.
                  nosaj
                  soldering stuff that's broken, breaking stuff that works, Yeah!
                  • Likes 4

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