something a little different, sound switch idea

[Thor]

What I want to do is modify the earphone jack on my Logitech x520's

When the speakers are on, it plays, you plug in earphones and the sounds from the speakers cuts out (like it should) what I want to know, is how do I bypass the switch at that jack so I can make a remote switch.

What I do know is that if I plug the extension cable in with no load on it, it still cuts out the mains, meaning the must be a physical switch in there some where.

I want to be able to leave an extension earphone cable plugged in all the time and make a remote jack that will basically do the same thing closer to my chair, however, I don’t want to scavenge the jack out of the speaker set its self (i.e. de-solder that jack, solder extension cable in its place, solder jack on other end of cable) I would rather buy a second jack and be able to unplug the extension for mobility reasons.

The switch is plastic enclosed inside the speakers, so I cannot easily see what is going in inside the mechanism.

I guess what I’m looking for is a switch wiring diagram and part number form popular vendors the rest I can figure out.

 

[thrawn86]

right now, there's a mechanism in the jack that transfers the signal to your headphones if anything is plugged in.

bad diagram, but this is the jack, from the top down. the carrots in the middle are switched contacts.. When nothing is plugged in, signal goes in one side, and out the other (and continues on to the speakers).

however, when you plug in a jack, those contacts (the carrots) are broken, and the signal goes instead to your headphones.



|----^----|
|----^----|
|----^----|

fake edit: better pic

see where the contacts overlap in the middle? when you plug something in, those contacts are broken. I guess you could mod that jack itself, and put in some three way switches, to switch between headphone/speaker, speaker, and headphone.

 

[Thor]

ok, that works for that type of jack, however, i feel that this one may be different in that this is a 5.1 system, plugging in earphones mutes all speakers, i have a feeling there is something else going on .. i might have to pull them apart and have a look again thanks for the help