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connecting two audio/video outs with patch cord

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Anonymous
July 22, 2004 5:18:45 AM

Archived from groups: alt.tv.tech.hdtv (More info?)

Always wondered if connecting two audio/video outs areas with a patch
cord could damage the hardware.

I accidentally connected audio out from my stereo to an audio out jack
in the soundcard and wondered if this could do damage.
Anonymous
July 22, 2004 5:18:46 AM

Archived from groups: alt.tv.tech.hdtv (More info?)

Very unlikely to do any damage.

Leonard

"Tim923" <tws0923@verizon.net> wrote in message
news:t15uf0p1ettetedun4cui4kk098htmfn6p@4ax.com...
> Always wondered if connecting two audio/video outs areas with a patch
> cord could damage the hardware.
>
> I accidentally connected audio out from my stereo to an audio out jack
> in the soundcard and wondered if this could do damage.
Anonymous
July 22, 2004 12:29:25 PM

Archived from groups: alt.tv.tech.hdtv (More info?)

On Thu, 22 Jul 2004 01:18:45 GMT, Tim923 <tws0923@verizon.net> wrote:

>Always wondered if connecting two audio/video outs areas with a patch
>cord could damage the hardware.
>
>I accidentally connected audio out from my stereo to an audio out jack
>in the soundcard and wondered if this could do damage.


Only if you break the jack inserting it.
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Anonymous
July 22, 2004 4:11:39 PM

Archived from groups: alt.tv.tech.hdtv (More info?)

Tim923 <tws0923@verizon.net> wrote in message news:<t15uf0p1ettetedun4cui4kk098htmfn6p@4ax.com>...
> Always wondered if connecting two audio/video outs areas with a patch
> cord could damage the hardware.
>
> I accidentally connected audio out from my stereo to an audio out jack
> in the soundcard and wondered if this could do damage.

I seriously doubt it. Very low power in line level signals.

I saw a guy accidentally connect a floppy drive (remember those?)
upside down SOMEHOW (I guess the cable wasn't keyed), and it literally
started to smoke after about 5 minutes. Fried the drive. The guy was
not me. :) 
Anonymous
July 22, 2004 5:22:09 PM

Archived from groups: alt.tv.tech.hdtv (More info?)

Can I get an explanation? Is it just that no electric circuit can be
completed between two outs? It seems pretty obvious for two ins.

My old stereo had a "speaker out" area to fit patch cord shaped wires
from the speakers. Now if I connected "speaker out" to "audio in" to
the sound card, could that be a problem, or is there a buffer?

On Thu, 22 Jul 2004 08:29:25 -0400, the_professor@attbi.com wrote:
>Only if you break the jack inserting it.
Anonymous
July 22, 2004 5:22:10 PM

Archived from groups: alt.tv.tech.hdtv (More info?)

Tim923 wrote:
> Can I get an explanation? Is it just that no electric circuit can be
> completed between two outs? It seems pretty obvious for two ins.
>
> My old stereo had a "speaker out" area to fit patch cord shaped wires
> from the speakers. Now if I connected "speaker out" to "audio in" to
> the sound card, could that be a problem, or is there a buffer?
>
> On Thu, 22 Jul 2004 08:29:25 -0400, the_professor@attbi.com wrote:
>> Only if you break the jack inserting it.

What are you trying to accomplish?

--
David G.
Anonymous
July 22, 2004 6:35:06 PM

Archived from groups: alt.tv.tech.hdtv (More info?)

"Tim923" <tws0923@verizon.net> wrote in message
news:grevf09q4tiaptrtsiul05lbprhfh91vjs@4ax.com...
> Can I get an explanation? Is it just that no electric circuit can be
> completed between two outs? It seems pretty obvious for two ins.
>
> My old stereo had a "speaker out" area to fit patch cord shaped wires
> from the speakers. Now if I connected "speaker out" to "audio in" to
> the sound card, could that be a problem, or is there a buffer?

Speaker outputs should NOT be connected to anything but speakers. You CAN
do lots of damage this way.

Leonard
Anonymous
July 22, 2004 6:57:20 PM

Archived from groups: alt.tv.tech.hdtv (More info?)

I would have never intentionally connected "speaker out" to "audio
in". I almost did it once. Would that have fried the soundcard?

>What are you trying to accomplish?
Anonymous
July 23, 2004 4:53:39 AM

Archived from groups: alt.tv.tech.hdtv (More info?)

Do they still make "speaker outs" that fit a patch cord? Our newer
stereo has wires that snap into place in the "speaker outs" area.

>Speaker outputs should NOT be connected to anything but speakers. You CAN
>do lots of damage this way.
Anonymous
July 23, 2004 4:53:40 AM

Archived from groups: alt.tv.tech.hdtv (More info?)

"Tim923" <tws0923@verizon.net> wrote in message
news:s3o0g05khcmgh75i2i3mi9mtbjrh5u68qu@4ax.com...
> Do they still make "speaker outs" that fit a patch cord? Our newer
> stereo has wires that snap into place in the "speaker outs" area.

Rarely these days. Mostly only on cheap stereo units will you find RCA
jacks for the speaker outputs.

Line level outputs from a tape out, cd, dvd, tv, etc. are relatively high
impedance and very low voltages with very little current. Connecting two of
them together will generally result in no problem (and no sound, of course).
Speaker outputs are low impedance outputs with a much larger voltage range
and potentially high currents to deliver power (not just transfer low level
signals like a line level output) to the speakers. You can do significant
damage to the amp and the input to which it is connected if you connect a
speaker out to a line level output or input.

There are transformers available to convert speaker outputs to a line level
if you need to do so, though this application is not very common.

Leonard
July 23, 2004 11:13:29 PM

Archived from groups: alt.tv.tech.hdtv (More info?)

When nothings powered on, your set....... the rest would depend on the
voltage and current being sent into the sound card.

Simple TEST Unplug it and it works well nothing damager and it don't you
smoked it..


"Tim923" <tws0923@verizon.net> wrote in message
news:t15uf0p1ettetedun4cui4kk098htmfn6p@4ax.com...
> Always wondered if connecting two audio/video outs areas with a patch
> cord could damage the hardware.
>
> I accidentally connected audio out from my stereo to an audio out jack
> in the soundcard and wondered if this could do damage.
!