Question about Sony MDR-7506 Professional Headphones

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Need to repair jack end of cable.

I need to resolder a connection on the jack end. Getting a new set of cans ain't in the cards...fixed incomes suck. These are the only cans that have ever suited me, and I've tried a lot of them in 20+ years. Failing a way to defeat the press fit (which is likely the case), I'm gonna need a part number and a road map. Thanks.

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You'll need an 1/8" male phono plug, also called a trs plug, a soldering iron, and solder. you can get this stuff at a place like mouser. don't buy any junk from radio shack. the soldering irons are ****, the solder is **** and often won't make a good connection, and their phono plugs are the cheapest of cheap at high prices. if you don't know how to solder already, i wouldn't recommend taking your first shot at soldering on your headphones. practice soldering some small wire first. the wire used in the sony headphones has a transparent coating of lacquer or teflon which will need to be scraped off with a knife or burned off with a lighter. remove just enough to make your solder connections and no more, maybe 1/8". the bare ends should be clean before soldering. a headphone plug has a tip, ring, and sleeve, in that order. the tip is left +, the ring is right +, and the sleeve is a common -. i don't know what color wires are in your headphones but i'm betting there's a blue, red, and a bare copper. the blue would be left, red right, and bare copper would be common. the contacts of the replacement plug in relationship to tip, ring, sleeve should become obvious with a close look. if it's not obvious, a multi meter set to continuity would help. good luck

Posted on Apr 20, 2008

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