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DJelly 21st July 2009 08:31 PM

Need help with headphone jack
I need to replace the 1/4 inch stereo phone jack on a pair of AKG K701's and I'm not sure about the wiring. There are four wires in the cable; red, white, yellow, and black, and I'm not sure which terminal each goes too. The "schematic" that I found here:
is unfortunately not very helpful to me. Any suggestions?

Gordy 21st July 2009 09:08 PM

I've never had a pair apart, but from the posted link the clue is the label that says 'in-phase'. Also both drivers have white connections which suggests that is ground, i.e. common (even if it changes colour to black at some point).

So, the 1/4 jack has three connections known as Tip, Ring and Sleeve, hence it is often known as a TRS jack. Tip is left, ring is right, and sleeve is ground. So I would wire it as follows...

Tip (left) yellow
Ring (right) red
Sleeve (ground) white and black

That'll work I am sure.

mjf 21st July 2009 10:50 PM

2 Attachment(s)
i opend the jack of my good old,yellow=left and the other two are soldered together to ground.............o.k.

DJelly 22nd July 2009 06:39 PM

Bingo! I appreciate the assistance.

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