
03/01/2006, 09:05 PM
#12
so I've taken some measurments, which seem to imply my headset is (if not broken) very weird.
if one reads this post on treotricks, one has a wealth of knowledge about the jack.
http://treotricks.blogspot.com/2006/...ksecrets.html
now, that led me to take a multimeter to my 2 headsets (the black one that works, and the white out that doesn't).
this is what I found.
again, I have 2 headsets, a "black" one that works stereo in treo, and a white
one that doesn't.
they each have a cooper male connector seperated by 3 "bars" (black and
white respectively).
I used my multimeter to measure resistance.
I'll denote it by C for Copper and B and W for Black and white
so we have C3 B C2 B C1 B C0
where C0 is the tip.
I measure resistance by placing one lead at C3, and placing the other
lead at C2 C1 and C0.
at C0, I measure 32 Ohms, at C1, I measure 32 Ohms, and C2 I measure 0
Ohms. (C0 is really the notch right b4 it gets a little wider). (really
approx, as I measure 3233 Ohms, but according to documentation, that's
pretty close to 32 Ohms it says is normal).
On the other one we have C3 W C2 W C1 W C0
at C0 I measure 0 Ohms, at C1 I measure 16 Ohms, at C2, I measure 16
Ohms (this is close to right on the money).
Obviously there's a major difference (and it's not the amount of Ohms I measured)
Now I decided to measure something else, what happens if I press the
"pickup/hangup" button on the respective headsets.
On both, it doesn't affet the ones that already have resistance, but it
causes the one at 0, to measure 1 Ohm.
Does this make it seem like my headsets broken (implies to me it's wired
wrong, but I don't really know). Any idea if I can easily "rewire" it?
(i.e. build my own female to male adapter that rewires things
correctly?)


