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Need some help repairing a Jamo SW 3015 active sub

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  • Need some help repairing a Jamo SW 3015 active sub

    Can someone tell me how big this capacitor is ?
    Attached Files

  • #2
    What is printed on it? Schematic?
    also that capacitor top center appears to be bulging in the pic..
    Last edited by Indyryder02; 06-28-2023, 08:14 PM.

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    • #3
      The one the arrow is pointing at looks like it might be a thermistor or surgistor.
      Originally posted by Enzo
      I have a sign in my shop that says, "Never think up reasons not to check something."


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      • #4
        Looks like a thermistor to me as well. Check the location to see if it's in series with the supply, which would indicate a thermistor rather than a capacitor. If across the supply it could be a capacitor or a MOV

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        • #5
          Here's a better picture
          Attached Files

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          • #6
            The circuit board designation is ZNR1. ZNR indicates Zinc-oxide Non-liner Resistor. So, it's a varistor and not a cap. It's function is to limit input overvoltage (surge protection). Is it across the AC input? ​
            "I took a photo of my ohm meter... It didn't help." Enzo 8/20/22

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            • #7
              NTC01 looks to be in series with the fuse, it also looks like a failed thermistor.

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