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Headphone jack wiring problem
Kevin Mullins:
--- Quote from: AcidArmitage on June 26, 2009, 08:03:47 pm ---well wouldnt the headphone extension connection be open until you plug the actual headphones into it? The headphone extension shouldn't close the circuit
--- End quote ---
The problem is the PC jack is still doing what it was designed to do when something is plugged into that jack.
Zebidee:
Read this guide I wrote on how to do cab audio with volume pots.
http://scarvell.net/wiki/index.php?title=VOLUME_CONTROL_MOUNTING_AND_WIRING
I usually also put in audio jacks with my setups. Audio signal goes from PC -> volume pot -> jack -> speakers. The jack will cut sound only when something is plugged into it, which is what people normally want.
Use the rear audio jack of your PC, as use of the front jacks sometimes cuts the signal to speakers (I've never seen the rear jack do this?). If all else fails you can hack directly into the motherboard audio header.
daywane:
I have a set of speakers that have a headphone jack built in them.
the sound still comes out speakers also
Kevin Mullins:
--- Quote from: Zebidee on June 27, 2009, 10:14:06 am ---Use the rear audio jack of your PC, as use of the front jacks sometimes cuts the signal to speakers (I've never seen the rear jack do this?).
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If you stop and think about it any of the rear ports are designed for you to plug something directly into it and for that something to have all the audio going straight to whatever that may be. (speakers, amplifier, etc)
So if you plug say headphones into one of those jacks.... all the audio will be going to just the headphones. Nothing to the cabinet speakers. You can't just plug them into two different ports, like audio out and line out, because that would obviously defeat the purpose, they would both be on all the time.
I think what you'll want to do is "split" the audio from the audio out port kinda like a Y fashion. Using the headphone jack as a switch per say going to the cabinet speakers and such. So say you take the negative side of the "cabinet" audio and wire the headphone jack so that it makes or breaks that connection depending on whether headphones are plugged in or not. (makes with no headphones - breaks with headphones)
Kevin Mullins:
--- Quote from: daywane on June 27, 2009, 10:36:34 am ---I have a set of speakers that have a headphone jack built in them.
the sound still comes out speakers also
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That makes no sense then..... in other words it kinda defeats the purpose.
Are you using true stereo headphones or just cheapo mono headphones?
Stereo has three silver sections, mono has two.
Sometimes if you plug the wrong one into the wrong type of jack (i.e. a stereo or mono jack) then weird stuff like that may happen.