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Kalleskaviar
Contributor I
Sep 19, 2021 3:39 AM UTC

Name of this part

Hello,

 

Does anyone know what the following part is? I have been troubleshooting a defect Sonos Sub and it is not working. 
 

I suspect it to be a kind of diode as it’s marked as D6. However, there is no marking on the part itself. When I check the voltage drop with diode measurement with a multimeter, it’s 0V and it is short circuited when checking the continuity, regardless of polarity. The part is right behind the transformer. 
 

I am trying to find a suitable replacement but I am stuck unfortunately. 
 

Please see attached image. Thank you. 

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    1 reply

    buzz
    buzz
    Grand Maestro
    Sep 19, 2021 9:59 AM UTC

    Odd that there are not markings. Does it seem as if the markings were deliberately masked? If so, you may be able to remove the mask with a solvent. Of course this assumes that the solvent will not also remove the underlying markings if any exist. You could test potential solvents along the edges.

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