speaker system help wanted.

"Scary__goongala!" (corymagee)
10/14/2015 at 17:17 • Filed to: None

I have 2 RCA and 2 Fisher speakers wired to a JVC receiver. If I connect the audio cable to the TV, I get this loud buzzing/static noise that makes listening to music impossible. The TV is an off brand(Element). Yes I know this is an older mixed up setup. However, when I plug the same cable into my phone to listen to music I don’t get the noise. I’m curious how I can fix this.

DISCUSSION (12)

Where have all the lightweights gone? > Scary__goongala!
10/14/2015 at 17:27

Do you have the TV plugged directly into the wall, or is it plugged into a surge protector?

WhereAreMyPants > Scary__goongala!
10/14/2015 at 17:44

What type of cable are you using to go from TV to receiver? If it’s mini-stereo, you’re probably not seating it completely into the port.

Scary__goongala! > Where have all the lightweights gone?
10/14/2015 at 17:44

Surge protector. Should I try the wall?

Where have all the lightweights gone? > Scary__goongala!
10/14/2015 at 17:48

I would try both the wall and another position on the surge protector. Hopefully one of those kills the hum.

Scary__goongala! > Where have all the lightweights gone?
10/14/2015 at 17:52

Didn’t work. Nuts

Scary__goongala! > WhereAreMyPants
10/14/2015 at 17:54

It has the red and white rca connections at one end and a single uncolored audio input on the other.

WhereAreMyPants > Scary__goongala!
10/14/2015 at 18:34

Is that the same type of connector as the red and white?

Scary__goongala! > WhereAreMyPants
10/14/2015 at 18:49

TheRealBicycleBuck > Scary__goongala!
10/14/2015 at 19:01

Hum is usually caused by a bad ground. This can be an issue when mixing and matching stereo mini plugs (like on a set of earbuds) with modern and older mini stereo output jacks. It sounds like you have a new mini-stereo to RCA cord and the jack on the TV is mono. That would cause the problem. The mono jack will cross the audio inputs on a mini-stereo jack.

Read more about different jack types here: https://en.m.wikipedia.org/wiki/Phone_con… #

WhereAreMyPants > Scary__goongala!
10/14/2015 at 22:49

Bicycle Buick is probably right. Other option is that it’s a service port, not audio.

Full of the sound of the Gran Fury, signifying nothing. > Scary__goongala!
10/15/2015 at 02:15

I’ve had this problem when mixing computer and AV equipment in the same audio system. As someone else has stated, this is probably a grounding issue. Since your phone isn’t plugged into an AC outlet you don’t have have the same issue as when two AC items are connected. Either try plugging the tv and receiver into the same AC outlet (like a power strip), and if that doesn’t work get yourself an audio cable called a ‘ground loop isolator’ and it should take care of the problem.

https://en.m.wikipedia.org/wiki/Ground_lo…

This is what I've used successfully over the years: http://www.radioshack.com/ground-loop-is…

Scary__goongala! > Full of the sound of the Gran Fury, signifying nothing.
10/15/2015 at 07:31

Word. Thanks for the info.