Question about Sennheiser MD421-II Professional Microphone

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Md421-II My cousin dropped this mike into a pool about a year ago.  I plugged it up and it worked!  Problem:  every now and then it cut's out.  Question: how do I take it apart to perhaps find the problem and repair it myself?

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  • chagus Dec 07, 2007

    So I can tell you how I fixed it, but pay you if I didn't. Hmmm.

  • chagus Dec 07, 2007


  • bassfixx Jan 05, 2008

    How do I take this thing apart? I have one that I bought for $10 and would like to fix it (it's DOA) but can't figure out how to get into it. It's also missing the bottom half of the screen. Can I get an exploded view of one anywhere? Thanks for any help.



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First use hair dryer for a minute if you have.
second- bring any box with suitble size to mic and put a rice on it and put the mic on it for a couple of days{rice absorb wet and humidity}

Posted on Feb 26, 2008


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Posted on Jan 02, 2017


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First you must loosin the connector.
There's a little shield with the serialnumber you can slide away.
Underneath that you will find the screw to loosin the connector/filter.
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How does one take a Sennheiser MD 421 apart?


At the connctorside there's a small metal plate with a serial number.
You have to bench it a little, underneath there's a screw.
Unscrew it and you can take the connector out.
What I remember after 25 years is that there is a screw inside which is loosing the grill and element.

I've written it before with succes.


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