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Main => Monitor/Video Forum => Topic started by: stone wall on January 19, 2011, 01:31:26 pm

Title: wells gardner
Post by: stone wall on January 19, 2011, 01:31:26 pm

Hi I have a wells gardner 25k7193 I fliped it from horizontal to vertical now the colors are messed up any one ever seen this or now how to fix it?Thanks

Title: Re: wells gardner
Post by: HaRuMaN on January 19, 2011, 01:31:58 pm

Quote from: stone wall on January 19, 2011, 01:31:26 pm

Hi I have a wells gardner 25k7193 I fliped it from horizontal to vertical now the colors are messed up any one ever seen this or now how to fix it?Thanks

You just need to degauss, that's all.

Title: Re: wells gardner
Post by: stone wall on January 19, 2011, 01:33:31 pm

how do you do that?

Title: Re: wells gardner
Post by: HaRuMaN on January 19, 2011, 01:37:38 pm

With that monitor, I think if you power it off for ~20 minutes, and turn it back on, it should do it automatically...

Title: Re: wells gardner
Post by: stone wall on January 19, 2011, 02:35:59 pm

I tried that same thing even if I rotate it 360 it does the same the only way its good is in the horizontal but I got a 60 in 1 board that calls for it to be in the vertical very strange

Title: Re: wells gardner
Post by: HaRuMaN on January 19, 2011, 02:38:58 pm

You have unshielded speakers nearby?

Title: Re: wells gardner
Post by: stone wall on January 19, 2011, 02:40:50 pm

yes I pulled the speaker right out I even pulled the monitor out of the cab and it still does it

Title: Re: wells gardner
Post by: WhereEaglesDare on January 19, 2011, 04:21:07 pm

you should have a degausing coil on the tube, it looks like a thick white cable just tied up around the tube, make sure that is connected to something, if it is disconnected take pictures

Title: Re: wells gardner
Post by: stone wall on January 21, 2011, 03:20:59 pm

here are some pic

Title: Re: wells gardner
Post by: qrz on January 21, 2011, 11:20:34 pm

borrow/buy/MAKE a manual deguassing coil .

 such as : http://www.mcmelectronics.com/product/72-785&CAWELAID=240983086 (http://www.mcmelectronics.com/product/72-785&CAWELAID=240983086)  ( yes, its ok for larger tubes )

the field produced by the internal coil usually isn't strong enough to correct an orientation shift.

Title: Re: wells gardner
Post by: stone wall on January 29, 2011, 09:10:13 am

OK i got a degaussing coil it did some clearing up but their is still some discolor at the bottom of the screen I did it several times with the same effect am I missing something?

Title: Re: wells gardner
Post by: qrz on January 29, 2011, 12:05:03 pm

u may need to open the back to get at the monitor frame.
several passes may be needed .

residual magnetism can be a factor when the field is stong enough.

years ago , i had a TV that i thought would never deguass. was just about to resort to adding magnets.
decided to hit every square centimeter i could reach. that did it .
problem was caused by a near direct hit of lightning . gotta love the EMP  :-\

Title: Re: wells gardner
Post by: mgb on January 29, 2011, 11:50:35 pm

Sometimes you need to deguass a couple of times.
remember that you start making small circles close to the screen and as you move away from the screen, make larger circles.

Title: Re: wells gardner
Post by: stone wall on February 06, 2011, 08:56:41 am

OK Its fixed what I did was I had an old magnet from a speaker I placed it at the lower corner of the monitor where the colors were off left it their for a day or so then removed it and used the degaussing coil again that did it looks awesome Thanks to everyone who tyred to help me out

Title: Re: wells gardner
Post by: mgb on February 06, 2011, 04:21:50 pm

I'm glad to hear it worked out Ok.
Be careful when using a permanent magnet for degaussing. I've never tried it but I hear it is easy to cause permanent problems.
I use a bulk tape eraser and it works great.