Question about Sennheiser PXC 250 Consumer Headphones

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Replacement connector for Sennheiser PX 250 doesn't work...

The headphone connector jack in my Sennheiser PX 250 had a short in it. I cut off the end and am trying to replace it with a 24k gold plated stereo plug purchased from Radio Shack, but I can't get the connector to work. I've tried all connections possible of the 3 wires (green, red, and copper) and get no sound. Even when I try reconnecting the old jack that has the short, I no longer get any sound (I did before, just muffled and only 1 side).

So what happened when I cut off the plug? Is it not possible to replace the jack?

These are borrowed headphones from my brother, and I'd really like to fix them instead of replace them. ANY HELP IS APPRECIATED!!

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The bare copper conductor wire is the screening/common earth to the two signal wires of green and red. The important connection is the copper wire which goes to the jack plug earth which is the section furthest from the tip. The other two are the left and right signal connections. If you get these the wrong way round you will just have to swap them over. Check if they are the right way round by using the balance control on your amplifier or whatever. Have you checked that the problem is not with the headphone amplifier within your equipment? Don't rely on OK sound from loudspeakers as the headphones may be fed from separate op-amp output chip. Try another pair of cheap and cheerful headphones to make sure.

Posted on Oct 04, 2009

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Posted on Jan 02, 2017

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