- Posted by patstyles (A) on April 24, 2007 at 17:20:42
Hello.I am trying to set up my SEX amp so that when I insert my headphones into the jack, the speakers shut off. I looked around for advise on this and found This post from Paul...
: If you look closely at the headphone jack, while inserting a plug, you can see the
: switch action. There is a metal finger (actually three of them) that is lifted up by
: the side of the plug shaft, when inserted. The signal from the output transformer
: goes to this finger, so the finger touches the plug, powering it. When the finger
: is up, one end of it is detached from a contact - that contact should go to the
: speaker, so that it gets detached when the plug is in.
:
: The plug has three metal surfaces, called "tip", "ring" and "shield" - the main
: part of the shaft is the shield. Signal positive goes to the tip and ring, the shield
: and the signal negatives are grounded. The grounds do not use the switch, so be
: careful there.
:
: Hope that helps, I won't have time to go into more detail until next week.So I looked for more posts but found nothing helpful. Anyway, it appears my attempts to implement this have failed. The closest I have gotten is when I simply removed the two resistors and conductor that connect the left and right terminals of the headphone jack. This resulted in the signal droping from the speakers when I insert the headphone plug, however there is no music coming out of the headphones.
My headphones are Sennheiser HD 650 and they work fine when plugged into a SEX amp with standard wiring.
Any ideas what I need to do to get this to work? Paul or anyone?
Thanks so much for helping me out and letting me take up your valuable time.
.pat styles
