Question about Philips Magnavox 20MC4304 20 in. TV/VCR/DVD Combo

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I need to degauss this TV.

Is there a way to do it through the units programming or menu?

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Hi,you can also run an soldering gun over the screen while switched on from the centre outwards somtimes can also be caused by a damaged shadow mask(tube) if the sets been dropped

Posted on May 28, 2008

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This type of CRTs can only be degauss using a degauss coil not through the TV menu.

Posted on Apr 14, 2008


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1 Answer

Tv cloudy

Could need a degauss, I assume the flickering is from the video footage and not the TV. Look on the menu for the degauss option (or in the user manual).

Jun 05, 2013 | Televison & Video

7 Answers

Sony kds-r60xbr2 televison

Make sure that you do not have a magnetichc feild around the TV.

Sep 06, 2008 | Sony KDS-R60XBR2 Television

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When i turn on my tv, the screen has like rainbow color all over it. i found out if you hold a magnet up to the screen, the color moves if you move the magnet. no picture of anything,,just color i...

To fix this, you need to do something called degaussing. You should keep magnets away from the screen in the future, because they cause this problem.
The first thing to try is to turn it on and off, making sure that all magnets and speakers (which have magnets in them) are kept far away from it. This will activate the monitor's auto-degausser if it has one. If this does not help, this guide: gives a couple solutions, including using a soldering gun (not a soldering iron), illustrated in the video below:
With a powerdrill:

Or investing about 60 bucks in a degaussing coil like this which is a guaranteed fix:
One other trick that might work is to take an old CRT monitor ("fat-screen" rather than "flat-screen"), hold it up to the tv screen to screen, and turn it on and off to have the monitor use its own degausser. The monitor may have a button to activate degaussing, or it may be in the menu you can bring up with the buttons on the bottom of the screen.
If you don't want to deal with any of this, a tv repair shop will degauss your tv for you quickly.

Feb 28, 2011 | Philips Magnavox 27MS343S 27" TV

1 Answer

I need to degauss a rca f19421 is there a menu setting to degauss?

No there is not! borrow a tv tech's degaussing coil, or bring it to the shop so he can quickly degauss it for you.

Feb 16, 2011 | RCA F19421 19" TV

1 Answer

My colour is going green and purple


Your tube Shadow Mask may have got magnetised and need to be degaussed. Some newer TVs will have a "degauss" function in the menu. This is most likely being caused by components. Do you have anything sitting directly on or next to your TV, such as VCR, Cable Box, DVR or stereo speakers? If this just happened recently you may not have damaged the picture yet. And if you move the components it may clear up otherwise you will have to purchase or make a degausser. You TV may have a degauss button. This will eliminate or minimize magnetic fields in the screen and should remove the de-coloration.

Also try turning off your TV at the mains and unplug it for at least two three hours, your TV should degauss the tube at power up. If this doesn't work you need to take it to the shop to get it diagnosed.

Please get back to us if you have any further query or else accept the solution.

Thanks for contacting

Nov 01, 2010 | Sanyo DS24205 24" TV

1 Answer

Monitor is ghosting, white trails.

You might want to try detaching the monitor and trying it on another computer unit to see if the problem still exists.  If it only occurs on your unit, then try updating the drivers on your system and see if that solves it.

Jun 30, 2010 | Samsung 225BW Monitor

1 Answer

I am starting to get a discoloration in the bottom left side of my screen. It is slowly making it's way up to the middle of the screen.

If it is a tube type TV, probably needs degaussing. The screen within the crt becomes magnetized or external magnets from speakers are causing a problem. Sometimes changing the direction or position the tv faces causes degauss problems. If moving nearby speakers changes the discoloration, then speakers are too close or TV needs degaussing. Some high-end Asian tvs have E-W adjustment in users menu to correct this problem.

If it is RPTV 3 tube crt TV, maybe a convergence problem.

If it is DLP or LCD rear projection, probably optical engine failure.

What model is TV. Is picture normal in BW with color turned off?


Apr 22, 2010 | Televison & Video

2 Answers

Sony KU-27FS16 TV

there is an apparatu use to degauss the color of tv, usually technician has.but ,if you don't have that apparatu, you can use the magnet of the speaker by placing it nearer the screen and moving it from left to right...

Sep 22, 2008 | Sony KV-27FS16 27" TV

1 Answer

Dark screen on TV

This sounds like a speaker got too close to the TV.
Degauss is built into many tv's check for it in the menu.
Otherwise, yes a TV shop or yourself will need to degauss the TV.

May 14, 2008 | Televison & Video

2 Answers

Blue Corners starting to form on my tv screen today...

Has there been a magnet or unshielded speakers near the TV? Sounds like the tv needs to be degaussed. You will have to bring it into a repair shop to have this done.

Dec 01, 2007 | Samsung TX-R2678WH 26" TV

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