Degaussing a TV

P

PM

Guest
My son thought he would do the right thing and put an unshielded speaker on
top of the TV..........surround sound and all that.

I now have lots of purple faces. What is the best way to sort this out?

thanks,paul
 
Hi,


Wnen you turn TV on with main switch, it goes through degaussing
automatically. Try to do it few times.
If this does not help, you will need a degaussing wand.

Rudolf

"PM" <blackale@kooee.com.au> wrote in message
news:smgFc.110$%V.7180@nnrp1.ozemail.com.au...
My son thought he would do the right thing and put an unshielded speaker
on
top of the TV..........surround sound and all that.

I now have lots of purple faces. What is the best way to sort this out?

thanks,paul
Click to expand...
 
On Sat, 3 Jul 2004 02:49:52 +1000, "PM" <blackale@kooee.com.au> wrote:

|My son thought he would do the right thing and put an unshielded speaker on
|top of the TV..........surround sound and all that.
|
|I now have lots of purple faces. What is the best way to sort this out?
|
|thanks,paul
|

See http://www.repairfaq.org/sam/tvfaq.htm

Look under CRT basics
 
Greetings.
You will probably need to turn the tv off with the mains switch,
then wait at least an hour (maybe longer) before switching
back on again.

The degaussing circuit needs time to cool before it will work.

While the tv is still in standby mode, the circuit is kept warm.

Russell.
 
Thanks guys,

I turned it off and left it overnight. All ok now.

But now I am wondering if there is a way to shield the TV from the speaker
without going to the expense of buying a dedicated centre speaker?

Paul

"PM" <blackale@kooee.com.au> wrote in message
news:smgFc.110$%V.7180@nnrp1.ozemail.com.au...
My son thought he would do the right thing and put an unshielded speaker
on top of the TV..........surround sound and all that.

I now have lots of purple faces. What is the best way to sort this out?

thanks,paul
Click to expand...
 
"PM" <blackale@kooee.com.au> wrote in message news:<GhPGc.156$156.3575@nnrp1.ozemail.com.au>...
Thanks guys,

I turned it off and left it overnight. All ok now.

But now I am wondering if there is a way to shield the TV from the speaker
without going to the expense of buying a dedicated centre speaker?
Click to expand...
I think the only way to do that is to surround the speaker magnet
with lead.
That could be very difficult, but don't let that stop you.

Bye,
Russell Griffiths.
 
"Russell Griffiths"

But now I am wondering if there is a way to shield the TV from the
speaker
without going to the expense of buying a dedicated centre speaker?

I think the only way to do that is to surround the speaker magnet
with lead.
Click to expand...

** What for - magnetism is not the same as X rays ???


That could be very difficult, but don't let that stop you.
Click to expand...

** Forget the lead.




............. Phil
 
"Russell Griffiths" <rg26ce1991@hotmail.com> wrote in message
news:13cdb672.0407080308.641187a2@posting.google.com...
"PM" <blackale@kooee.com.au> wrote in message
news:<GhPGc.156$156.3575@nnrp1.ozemail.com.au>...
Thanks guys,

I turned it off and left it overnight. All ok now.

But now I am wondering if there is a way to shield the TV from the
speaker
without going to the expense of buying a dedicated centre speaker?

I think the only way to do that is to surround the speaker magnet
with lead.
Click to expand...
Since when has lead stopped magnetic fields??? Didn't in my days at tech...

That could be very difficult, but don't let that stop you.
Click to expand...
Might stop Superman from seeing what's inside your speakers!! ;-)

Bye,
Russell Griffiths.
Click to expand...
 
In article <13cdb672.0407040603.1b6fdcc0@posting.google.com>, rg26ce1991
@hotmail.com says...
Greetings.
You will probably need to turn the tv off with the mains switch,
then wait at least an hour (maybe longer) before switching
back on again.
Click to expand...
Oddly, I had a TV that was turned off for a week (holidays), came back
and it needed the degauss.
 
In article <GhPGc.156$156.3575@nnrp1.ozemail.com.au>,
blackale@kooee.com.au says...
Thanks guys,

I turned it off and left it overnight. All ok now.

But now I am wondering if there is a way to shield the TV from the speaker
without going to the expense of buying a dedicated centre speaker?
Click to expand...
Yes all you need to do is either
1. Remove the magnet(s) from the speaker
2. Demagnetise the magnets in the speaker
 
"Patrick Dunford" wrote:-

But now I am wondering if there is a way to shield the TV from the speaker
without going to the expense of buying a dedicated centre speaker?
Click to expand...
Yes all you need to do is either
1. Remove the magnet(s) from the speaker
2. Demagnetise the magnets in the speaker

***There's one in every pack!!

Brian Goldsmith.
 
Dam, here was me thinking it was a simple as placing left handed
rhododendron monkey in the SW corner of celebrity in my laundry......

Does this mean I should buy a shielded speaker, rather than build a Faraday
cage made out of gold plated chicken wire for my speaker.....


"Patrick Dunford" <patrickdunford@nomail.invalid> wrote in message
news:MPG.1b5917375c812d95989c9a@news.paradise.net.nz...
In article <GhPGc.156$156.3575@nnrp1.ozemail.com.au>,
blackale@kooee.com.au says...
Thanks guys,

I turned it off and left it overnight. All ok now.

But now I am wondering if there is a way to shield the TV from the
speaker
without going to the expense of buying a dedicated centre speaker?

Yes all you need to do is either
1. Remove the magnet(s) from the speaker
2. Demagnetise the magnets in the speaker
Click to expand...
 
Greetings.
Sorry for the mis-information.
I thought I had read lead was used in magnetically shielded
speakers.

Does anyone know how magnetically shielded speakers
are constructed?

Russell.
 
"Russell Griffiths"


Sorry for the mis-information.
I thought I had read lead was used in magnetically shielded
speakers.

Does anyone know how magnetically shielded speakers
are constructed?
Click to expand...

** They use a second magnet mounted behind the first - with reverse
field orientation.




............. Phil
 
PM wrote:
Does this mean I should buy a shielded speaker, rather than build a Faraday
cage made out of gold plated chicken wire for my speaker.....
Click to expand...
Yes. Faraday cages work for electric fields, but not magnetic ones.
 
Yes, silly me! So how do they make shielded speakers then?

"Clifford Heath" <cjh-nospam@nospaManagesoft.com> wrote in message
news:1089673034.28059@excalibur.osa.com.au...
PM wrote:
Does this mean I should buy a shielded speaker, rather than build a
Faraday cage made out of gold plated chicken wire for my speaker.....

Yes. Faraday cages work for electric fields, but not magnetic ones.
Click to expand...
 
"PM" <blackale@kooee.com.au> wrote in message
news:T%NIc.116$1%4.4109@nnrp1.ozemail.com.au...
Yes, silly me! So how do they make shielded speakers then?
Click to expand...
"Russell Griffiths"

Sorry for the mis-information.
I thought I had read lead was used in magnetically shielded
speakers.

Does anyone know how magnetically shielded speakers
are constructed?
Click to expand...

** They use a second magnet mounted behind the first - with reverse
field orientation.



............. Phil
 
"Phil Allison" <philallison@tpg.com.au> wrote in message news:<2lhr5iFccfkiU1@uni-berlin.de>...
"PM" <blackale@kooee.com.au> wrote in message
news:T%NIc.116$1%4.4109@nnrp1.ozemail.com.au...
Yes, silly me! So how do they make shielded speakers then?


"Russell Griffiths"

Sorry for the mis-information.
I thought I had read lead was used in magnetically shielded
speakers.

Does anyone know how magnetically shielded speakers
are constructed?



** They use a second magnet mounted behind the first - with reverse
field orientation.


............ Phil
Click to expand...
Would a HALBACH orientated magnet array work in a speaker, I wonder...

Scott.B..
 
"Scott B"
"Phil Allison"
"Russell Griffiths"
Does anyone know how magnetically shielded speakers
are constructed?



** They use a second magnet mounted behind the first - with reverse
field orientation.


............ Phil

Would a HALBACH orientated magnet array work in a speaker, I wonder...
Click to expand...

** For the curious: http://www.matchrockets.com/ether/halbach.html





............. Phil
 
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