Re: Monitor degaussing help wanted pt 2

Thanks for the additional tips regarding the degaussing method. I'll give
those a try tonight and see how I do.

-----Original Message-----
From: Mehrtens John-LJM071 <LJM071@email.mot.com>
To: 'rasterlist@synthcom.com' <rasterlist@synthcom.com>
Date: Monday, July 24, 2000 3:12 PM
Subject: RE: RASTER: Monitor degaussing help wanted pt 2

>See below --
>
>-----Original Message-----
>From: Joel Rosenzweig
>
>1]Unfortunately, when I plugged the monitor back in, it looked just as bad
>as it had before. My degaussing procedure seemed to have had no effect.
>So, here are my questions... given my brief description of the display
>characteristics, was I correct to diagnose this as a degaussing issue?
>
>In a way, yep - purity problems are usually corrected by degaussing the
>monitor.
>
>2]If it's something else, have any idea what it is?
>
>See my part 1 msg :> Could be the purity rings, yoke position, high
>magnetism on the shadow mask, or the shadow mask itself.
>
>3]If this is still a degaussing issue, are there any tips for improving my
>technique?
> a]Specifically, how long should I take to degauss the monitor? 1 minute?
>
> It depends on how bad the monitor needs degaussing. Usually around 15 to
>30 seconds takes care of it. If it doesn't, then try it again. If the
>problem gets better after each degaussing, you're on the right track. If
it
>looks the same, that's not a good sign. The most I've had to do it was for
>about a total of 2 minutes after someone took a rare-earth magnet and stuck
>it to the monitor face to show one of his coworkers how 'neat' it looked.
>(ack!)
>
> b]Should I make rapid spirals around the monitor face or slow paced ones?
>I was holding the coil so that the "O" was parallel to the face of the
>screen. That is, the monitor is facing horizontally on my workbench, and
the
>"O" was being held straight up and down. Is that correct?
>
> Usually, I leave the monitor turned on with a full-field signal applied.
I
>usually like white, then switch between r, g, and b to check each color.
>With the monitor on, I keep the degaussing coil around 6 inches from the
>face and turn it on. Going in circles, I start with small circles and
>progressively make larger and larger rings around the monitor while pulling
>it back. I usually do one ring per second to start with, and end up about
>one every two seconds at the end. At that point, I'd be around 6 feet away
>from the face of the monitor with the ring edges just going outside the
>edges of the CRT. Then I'd turn it so the face of the ring lines up with a
>side of the monitor and pull back to around 10 feet, where I'd turn the
coil
>off.
>
> Oh, and make sure you don't have anything near you that you don't want
>degaussed! (credit cards, ATM cards, analog watches, hard drives,
>diskettes, magnetic tapes like cassettes and videocassettes...)
>
>HTAYQ (hope this answers your questions),
>
>John
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Received on Mon Jul 24 15:03:48 2000