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

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.

 

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.

 

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.