monitor degaussing question

[redfivexw]

Ok,
so i put a monitor from an originally horizontal game into a vertical cabinet.  This was 6 months ago.  The colors are all off color after turning it sideways.  i bought a circular monitor degausser and tried to degauss it.  Even after 5 minutes of running it over the screen according to directions (this way over a 1/2 hour period).  it still looks horrible.  The colors change into the proper colors when the degausser is over the screen, but as soon as you move it the colors go back to being wrong.  What is left for me to do?

[Kevin Mullins]

5 minutes !!

Should be more like 5 SECONDS at most.

With the circular type you should place it near the screen, push the button and pull away.
You may have to repeat the process and pull in certain directions if need be, but it's still just short bursts each time.

Does the automatic degauss not work on the monitor ?
Is there anything magnetic near it interfering with it ?
What model monitor is it ?

[redfivexw]

There are no magnets near it, i have several other arcade games next to it that have perfect pictures.  The monitor is a wei-ya chassis, the tube was originally a tv tube.  I built the monitor myself, but it worked perfectly when in the normal position
.   I even tried turning the monitor around to the other way and the colors stayed messed up in the same places.  

[grantspain]

you are not doing the correct action with the degauss,you should start very close to the crt middle and make circular actions whilst moving outwards and ever larger circular actions
this whole process should take a few seconds

[qrz]

you are not doing the correct action with the degauss,you should start very close to the crt middle and make circular actions whilst moving outwards and ever larger circular actions
this whole process should take a few seconds

after you have backed a few feet away from the screen , turn the coil 90 degrees ( perpendicular to screen )
THEN deactivate.

turning on/off near screen can defeat the purpose.   i.e . the collapsing magnetic field can magnetise the screen

[Rickn]

So Ok, now that we have the process down....
Start at the center of the screen with the degausser on, circular motion (Like stirring a drink) form center to outside edges of the screen.. about 3 stirs.
As you get to the outside edge of the tube leave the degausser on and pull back about 6 feet before letting go of the degaussers power switch.
Ok , everyone else already said this,
What has not been said is this..
When a  monitor is made and the tube is aligned, the most critical issue is the earths magnetic field.
There is a horizontal magnetic component and a vertical magnetic component, they are extremely different. I could attempt to explain it all but it would not help you.
Bottom line if we know a customer will use a monitor in the vertical mount rotation we use a magnetic chamber while doing the alignment to fool it and make the tube think it is sitting vertically.
I can tell you how to readadjust the tube, but there are risks involved.
Rick@niemandisplays.com

[Kevin Mullins]

I was also curious as to the built in degauss coils compatibilty with that particular chassis. (since this monitor is built from misc parts)

I built a K7000 one time with a random tube that just simply would not degauss properly on it's own.
Swapped the coil out with a known K7000 coil and all was good. It was like the other coil was weak when used with the K7000 chassis.