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indigoonlatigo(at)msn.com
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 Posted: Thu Apr 05, 2007 8:48 am Post subject: Headphone jacks and mic jacks. |
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Here is what i am looking for.
I understand about being consistent with the wire color coating. I am
greatful for people pointing out the different elements which make up a plug
and the recepticle for the plug. Audio, PTT, and common. thanks for the likk
to the Aero Electric book..forgot I owned it.
What are the practices for the color coating on each of those elements. Blue
red and white. I own the stuff Stein sold me. Shielded 3 wire.
When I look at my PS 3000 schematic , it is not clear which color is for
what. If someone professional in the futrure works on my radio installation
I would like to have it the way it is supposed to be.
The manual says hook the shield to the intercom side only. I will follow the
directions so I do not need to know why I can do it on both ends. But where
do I hook the shield? There is no location on the intercom itself and no
place where I can tie all the shields together. Once they are tied together
do they go to the negative ground plate on the firewall.
As for the wire which will be the common wire in the schematic, how do this
all get tied together.
Having trouble figuring this stuff out even looking in the Aero electric
book and comparing it to the PS 3000 schematic.
Did anyone do there own wiring?
Thanks,
JOhn
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jwt(at)roadmapscoaching.c
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| Posted: Thu Apr 05, 2007 4:12 pm Post subject: Headphone jacks and mic jacks. |
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John,
The shields are usually tied together in a ring terminal attached to the
d-sub connector going to the back of the intercom. For a lot of connections
you might have 3 or 4 of these ring terminals screwed to the connector.
Solder sleeves are great for attaching a wire to the shield. You only want
to attach the shields at the radio side, not the jacks. And you want to
ground isolate the jacks with the nylon washers others have been talking
about.
I might suggest you talk to Stein to get some instruction on this. He was a
huge help to me. Most of my intercom and radio cables came prewired when I
bought my avionics through John Stark (a great source by the way).
John Testement
jwt(at)roadmapscoaching.com
40321
Richmond, VA
Paint prep and LOTS of misc stuff
do not archive
--
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