strange degauss behaviour

[Dave Dixson]

6 years back I started to have green patches appear on my TV, I think
around the time I moved into a new house. A year ago, I bought a new
32 inch wide screen tv and noticed that, with high contrast images, I
also got degauss problems. I read reports that this is common in
large widescreens so decided to turn down the contrast and live with
it.

Now here is the wierd bit - following a recent move to a new house the
degauss problem on my new tv seems to have fixed itself - even set to
high contrast, large areas of white shoe very little sign of colour
patches.

Is there any way that some sort of local variation in magnetic fields
in the ground beneath my old property could have caused the problem,
or is it just a coincidence. Should I expect the problem to come
back?

Cheers,

Dave.

 

[Charles Schuler]

6 years back I started to have green patches appear on my TV, I think
around the time I moved into a new house. A year ago, I bought a new
32 inch wide screen tv and noticed that, with high contrast images, I
also got degauss problems. I read reports that this is common in
large widescreens so decided to turn down the contrast and live with
it.

Now here is the wierd bit - following a recent move to a new house the
degauss problem on my new tv seems to have fixed itself - even set to
high contrast, large areas of white shoe very little sign of colour
patches.

Is there any way that some sort of local variation in magnetic fields
in the ground beneath my old property could have caused the problem,
or is it just a coincidence. Should I expect the problem to come
back?

The move shook the circuits and remade an intermittent contact?

 

[~]

this may sound strange but your house may have been a magnetic hot spot.

did you experience any ghostly activity? because usually people who
live in magnetic hotspots has magnetically induced experiences too.

 

[Sam Goldwasser]

6 years back I started to have green patches appear on my TV, I think
around the time I moved into a new house. A year ago, I bought a new
32 inch wide screen tv and noticed that, with high contrast images, I
also got degauss problems. I read reports that this is common in
large widescreens so decided to turn down the contrast and live with
it.

Now here is the wierd bit - following a recent move to a new house the
degauss problem on my new tv seems to have fixed itself - even set to
high contrast, large areas of white shoe very little sign of colour
patches.

Is there any way that some sort of local variation in magnetic fields
in the ground beneath my old property could have caused the problem,
or is it just a coincidence. Should I expect the problem to come
back?

Yes. Since you noticed it with two different sets, either ferrous metal in the
house or underneath it could have been the cause. It wouldn't take much.
Or, it may have nothing to do with the local magnetic field but the TV
is just be facing a different direction.

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[John Del]

Subject: strange degauss behaviour

From: [email protected] (Dave Dixson)
Date: 8/16/04 9:53 PM
Message-id: <76c0e2e9.0408161353.6d0acb7a@posti

.. A year ago, I bought a new

32 inch wide screen tv and noticed that, with high contrast images, I
also got degauss problems.

It's got nothing to do with degaussing, it's the shadow mask "doming" from the
heat formed on the mask from high drive levels. Although the result is the same
(the beam not landing on the correct phosor), the reasons are different.

Now here is the wierd bit - following a recent move to a new house the
degauss problem on my new tv seems to have fixed itself - even set to
high contrast, large areas of white shoe very little sign of colour
patches.

CRTs that age will show less propensity to dome because the output of the guns
drops off. Of course I have no idea if this happened to you.

 

[Jerry G.]

I am very sure that there was something near to the set that was causing a
magnetic field of some type, that was keeping the CRT magnetized. Without
proper evaluation, it would not be a good practice to take a wild guess.
Since you had the experience with 2 sets, one being new, I would not
speculate too strongly on having degausser problems in the sets. Even the
placement of speakers near to the set, or some other electrical device, can
cause these types of problems with TV sets.

I had one case where a man had a TV set that would only show purity problems
in the summer time. It turned out that each summer, he was installing a
window air conditioner about 3 feet from the TV. The air conditioner was the
cause of his problems with the TV set.

Some models may be effected more than others. This has to do with the
particular CRT characteristics, and with how well shielded it is in the
particular model. In some cases, it can even be how the set is orientated.

--

Greetings,

Jerry Greenberg
===========



6 years back I started to have green patches appear on my TV, I think
around the time I moved into a new house. A year ago, I bought a new
32 inch wide screen tv and noticed that, with high contrast images, I
also got degauss problems. I read reports that this is common in
large widescreens so decided to turn down the contrast and live with
it.

Now here is the wierd bit - following a recent move to a new house the
degauss problem on my new tv seems to have fixed itself - even set to
high contrast, large areas of white shoe very little sign of colour
patches.

Is there any way that some sort of local variation in magnetic fields
in the ground beneath my old property could have caused the problem,
or is it just a coincidence. Should I expect the problem to come
back?

Cheers,

Dave.