Is this jack wired correctly?

K

Ken

Guest
Please see J4 for a TenTec RX-320HF receiver -- copied from the TenTec
web site:
http://home.att.net/~cprstn54/J4.JPG

Am I right that this a a stereo jack with the mono signal on ring?

If so, why would anyone wire up a jack this way? A mono plug would
short the signal to ground.



Ken
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Ken posted:

<< Please see J4 for a TenTec RX-320HF receiver -- copied from the TenTec
web site:
http://home.att.net/~cprstn54/J4.JPG

Am I right that this a a stereo jack with the mono signal on ring?

If so, why would anyone wire up a jack this way? A mono plug would
short the signal to ground.
The jack is a standard tip, ring, sleeve jack, and the configuration looks
good.

The real question is: Why would someone put a "tip and sleeve plug into it,
when it *clearly* is intended for a tip, ring and sleeve plug?

Don
 
On 02 Dec 2004 18:30:09 GMT, dbowey@aol.com (Dbowey) wrote:
The real question is: Why would someone put a "tip and sleeve plug into it,
when it *clearly* is intended for a tip, ring and sleeve plug?
Click to expand...
Well, one reason is that the jack is labelled "Speaker" and not
"Speakers" and it is a mono radio. It's not like you can look down
the hole and see what's what.


Ken
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remove "zz" from address)
 
Could it somehow disconnect the main speakers? You know, like the older
stereos where you plugged in headphones and they automatically cut the main
speakers.

"Ken" <cprstn54zz@att.net> wrote in message
news:pghuq09006li1hpk7e6ef3gs82pud9cp8p@4ax.com...
Please see J4 for a TenTec RX-320HF receiver -- copied from the TenTec
web site:
http://home.att.net/~cprstn54/J4.JPG

Am I right that this a a stereo jack with the mono signal on ring?

If so, why would anyone wire up a jack this way? A mono plug would
short the signal to ground.



Ken
(to reply via email
remove "zz" from address)
Click to expand...

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On Thu, 2 Dec 2004 22:16:20 -0500, "tempus fugit"
<toccata@no.spam.ciaccess.com> wrote:

Could it somehow disconnect the main speakers? You know, like the older
stereos where you plugged in headphones and they automatically cut the main
speakers.
Click to expand...
There is an independent LINE-OUT with a lower amplitude version of
this signal fed to tip and ring of a separate stereo jack, with 100
ohm resistors on each leg. This is a common technique that
accommodates a stereo or mono plug.

The presence of the LINE-OUT jack wired so competently makes the
SPKR-OUT wiring especially puzzling.

Ken
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remove "zz" from address)
 
On Thu, 02 Dec 2004 15:00:51 -0500, Ken wrote:

On 02 Dec 2004 18:30:09 GMT, dbowey@aol.com (Dbowey) wrote:
The real question is: Why would someone put a "tip and sleeve plug into
it, when it *clearly* is intended for a tip, ring and sleeve plug?

Well, one reason is that the jack is labelled "Speaker" and not "Speakers"
and it is a mono radio. It's not like you can look down the hole and see
what's what.
Click to expand...
Oh, then it just means that it was cheaper for them to use the same jack
that they use in their stereos, but only wire it up for mono, than to
specify a different jack only for mono.

If it's a mono unit, the "ring" wouldn't be connected, which your diagram
seems to indicate, ass-u-me-ing that "X" means "no connect".

Cheers!
Rich
 
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