Sennheiser Wireless Mic

Discussion in 'The Projects Forum' started by frenchie29, May 9, 2009.

  1. frenchie29

    Thread Starter Active Member

    Nov 28, 2008
    134
    0
    I've had this mic for a while now I've almost never used it (low end) So I decided to fire it up so I could sell it. Nothing, no sound but I'm getting full RF so I knew it was the mic itself so I decided to unscrew the capsule to see what's inside, it's pretty sealed but soon as I removed the capsule I noticed that the wires were just hanging, 2 black and a red one. If I look at the capsule I can see there's 4 blobs of solder so I would assume that those wires were connected there I did a quick test but nothing is happening. Why 3 cables? and 2 black and one red. I could see 1 red 1 black but I don't get the 3rd one I would assume it's negative as well.

    Here's the mic
    http://www.sennheiserusa.com/newsite/produ...?transid=500594


    And some pix
    [​IMG]



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    [​IMG]

    On the above picture on the capsule right underneath the body (bottom right) there's a ^ metal ring with another blob of solder so I would assume that goes to the shorter black cable as the ground.
     
    Last edited: May 9, 2009
  2. RmACK

    Active Member

    Nov 23, 2007
    54
    0
    Some electret mics have 3 wires. Usually a ground, a signal out and a dc power in. They have a small amplifier built in which needs this power.

    Sorry I don't know which wires & pads would be which. Perhaps someone else has a senheiser they wouldn't mind opening to check the wiring for you...

    Nice mic btw.
     
  3. frenchie29

    Thread Starter Active Member

    Nov 28, 2008
    134
    0
    The mic looks nice but it's the lowest that Sennheiser have

    The thing is there's 2 black wire, so I assume those 2 are ground and the red is positive. What kind of wire do they use? They are a very dark grey and solder doesn't stick too well to it.

    Here's a clearer picture.
    [​IMG]
     
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