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From: William Sommerwerck on 22 Apr 2010 08:23
I'm wondering if a bit of banging might help. But it's not clear how, "just
sitting around", the shadow mask might have gotten deformed.


From: AZ Nomad on 22 Apr 2010 09:20
On Thu, 22 Apr 2010 05:23:59 -0700, William Sommerwerck <grizzledgeezer(a)comcast.net> wrote:
>I'm wondering if a bit of banging might help. But it's not clear how, "just
>sitting around", the shadow mask might have gotten deformed.

The "tool" I used to use for massive degausing was a bulk tape eraser.
From: hr(bob) hofmann on 24 Apr 2010 00:08
On Apr 22, 1:47 pm, Ron Weston <R...(a)nosuch.com> wrote:
> Thanks for the replies so far. My friend is a senior citizen and lives
> alone, so no children have been near the TV. There have been lightning
> storms so that may be what caused her TV problem.
>
> I have a bulk tape eraser. When I visit again first I'll try my
> degaussing coil on the side of the TV as well as the front, and if
> that doesn't work I'll try the eraser.
>
> I'll report back what happens.
>
>
>
> Ron Weston <R...(a)nosuch.com> wrote:
> >My friend has an inexpensive 9-inch TV, about 6 to 10 years old. It
> >suddenly developed two green spots on the screen, one in the upper
> >right corner and one in the lower right corner.
>
> >I have a "GC Electronics Professional Degaussing Coil" and I made two
> >attempts to degauss the TV picture tube. After the second try the
> >lower green spot was just about gone, and the upper spot is much
> >smaller but can still be seen.
>
> >I'm going to try again next week and I would like some advice. In my
> >attempts so far I moved the degaussing coil around only the front of
> >the TV. Should I try degaussing the sides, top or back of the TV, or
> >might this make things worse?
>
> >Nothing unusual happened to cause the green spots. The TV hasn't been
> >moved in years and no magnets were placed near the TV. Any theories
> >about what happened?- Hide quoted text -
>
> - Show quoted text -

Just be sure to m,ove at least 10 feet away before shutting it off.
From: Boris Mohar on 24 Apr 2010 07:50
On Thu, 22 Apr 2010 00:01:33 -0400, Ron Weston <RonW(a)nosuch.com> wrote:

>My friend has an inexpensive 9-inch TV, about 6 to 10 years old. It
>suddenly developed two green spots on the screen, one in the upper
>right corner and one in the lower right corner.
>
>I have a "GC Electronics Professional Degaussing Coil" and I made two
>attempts to degauss the TV picture tube. After the second try the
>lower green spot was just about gone, and the upper spot is much
>smaller but can still be seen.
>
>I'm going to try again next week and I would like some advice. In my
>attempts so far I moved the degaussing coil around only the front of
>the TV. Should I try degaussing the sides, top or back of the TV, or
>might this make things worse?
>
>Nothing unusual happened to cause the green spots. The TV hasn't been
>moved in years and no magnets were placed near the TV. Any theories
>about what happened?

Did someone move some leaky speakers nearby?

--
Boris
From: Ron Weston on 24 Apr 2010 15:41
I used my degaussing coil on the TV again today. This time I moved the
coil over the front, sides and top of the TV. There's still a tiny bit
of green in one corner (you have to look closely on a very light
screen to see it) and my friend is satisfied and didn't want me to try
the bulk eraser.

I'm afraid the degaussing circuit in the TV is not working. The green
spots got worse in the week since I first degaussed the set. My friend
is unwilling to give up her TV now so that I can repair it, but when
she goes on vacation this summer I will repair the set.

Thanks again for all the responses and advice. It's greatly
appreciated.


Ron Weston <RonW(a)nosuch.com> wrote:

>Thanks for the replies so far. My friend is a senior citizen and lives
>alone, so no children have been near the TV. There have been lightning
>storms so that may be what caused her TV problem.
>
>I have a bulk tape eraser. When I visit again first I'll try my
>degaussing coil on the side of the TV as well as the front, and if
>that doesn't work I'll try the eraser.
>
>I'll report back what happens.

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