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Article #3815

Re: Strange Glare on Viewsonic PT775 switching on/off

#3815
From: Steve TR
Date: Fri, 16 Apr 1999 00:00
41 lines
2641 bytes
Nope.  That sounds completely normal.  It sounds like the degauss function
is doing what it should.

Degaussing is the act of passing electricity thru a coil of wire around
your CRT (Picture tube) for a few seconds as to create a magnetic field
that removes any magnetic charges from the CRT.  If CRTs were never
degaussed, the tube would eventually build up enough of a magnetic charge
that it would interfere with the  color guns causing mis-convergance (Red,
Green, Blue not being aligned properly) and also cause color
spots/splotches on your CRT.

Degaussing is normal.  Most of the time, degaussing takes place when the
CRT is cold and therefore you never see this "rainbow" effect.  But if the
CRT is warm enough to display a picture when it is powered up, you will see
the degaussing coil in action for a few seconds.

-Steve
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---| Original Message As Follows |---

Wendy Fung <wendy@accubid.com> wrote in article
<7f5qlu$6cd$1@nr1.toronto.istar.net>...
| I recently got a Viewsonic PT775.  Everytime, I turn it on and off (vice
| versa), a strange glare (a rainbow of distorted color) would flash by the
| screen.  It looks as if it's trying to get in sync.  It takes about 2sec
| before it stablized.
| Is this a problem?  Does it has anything to do with the video card as
well?
| 
| TIA
| Wendy
| 
| 
| 
| 
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From: "Steve TR" <TheBestMix**@Hotmail.com>
Subject: Re: Strange Glare on Viewsonic PT775 switching on/off
Date: 1999/04/16
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