3.5 mm jack internal connections

Stereo jacks (2.5 mm, 3.5 mm and 1/4") have three conductors: tip (at the end of the plug), ring, and sleeve (body). These connectors are therefore called tip-ring-sleeve or TRS connectors.

When they are used for audio applications, the tip is the left channel audio, the ring is the right channel audio, and the sleeve is the common, return, or 0V connection.

If that doesn't answer your question, you'll need to explain what you're asking.

 

That's still very vague.

The connections should be made with copper tracks.

If you're asking which pin of the jack socket connects to which contact, that information should be in the data sheet fo the jack socket. If you can't find it, post a link to the data sheet and I'll have a look at it.

If you're asking which signal will come in on which contact, then you need documentation on the device that will be plugged into it.

If that doesn't answer your questions then you need to explain your question better.

 

Ah! The problem at last. Now you just need to tell me WHICH ONE of those jack sockets you're using, and we might get somewhere!

 

The stereo ones are on the second page.

 

Right. That was going to be my next suggestion... assuming he actually has a socket in his hands. If he doesn't, I guess a careful web search would be appropriate, for that specific part number first. (There seem to be two numbers associated with each part.) If he can find a clear enough photo he may be able to make out the arrangement of the contacts inside under the transparent cover. Also there may be other compatible sockets made by other manufacturers; he could lay out the board assuming they would be the same, and add some positions for track cuts and solder blobs to swap the tip and ring connections over if necessary.

at89atbits you haven't given us much information to work from.

 

Please answer these questions.

1. What is the part number of the jack socket you intend to use?
2. Do you have one of these in your possession? Or do you just have a data sheet?
3. Do you have a stereo jack plug to suit that socket? And do you have a multimeter?