Subject: strange degauss behaviour
From: (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.