Question about Philips 27PT543S 27" TV

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Damage on the picture tube, its a rainbow effect on the screen

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Try deguassing crt with deguassing coil. If this doesn't work the shadow mask has come loose inside the crt and the tv would need a new crt which would cost more than replaceing the tv

Posted on Jun 26, 2009

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Has a double picture and looks rainbow


A double pcture with two different colours??? more seriousely the rainbow effect could be of an appature grill un hooked in one of the three tubes (THIS IS DANGEROUS IT COULD IMPLODE) you should have a proffessional looke at it and you should NOT USE OR MOVE the TV until then.

Good luck!

Jan 04, 2011 | Sony KP-53V75 53" Rear Projection...

2 Answers

Rainbow screen aiwa tv,, screen shows different colors like rainbow// brushing a magnet infront of the screen fixes the issue temporary


Picture tube is magnetized. Manual degausing is required. already you have done this.

Since you say it is reappearing, you have to check the following.

1. Relocate the TV or relocate if you have placed any tower speakers
or home theater speakers close-by.

2. Check whether auto degauss functioning OK. In the MENU
check whether you switched off auto degauss option. If it is OFF
enable it to ON.

3. Finally re orient the direction of your TV and watch the rainbow
effect. Switch OFF TV, wait for 20 mts, and again switch ON.
Repeat the process. It should disappear.

Magnetic toys or any other devises using magnet will cause this problem.


Aug 11, 2010 | Aiwa TV-S2011 20"

2 Answers

My son was bouncing a small ball against the screen and then it went to looking like a rainbow. Would this be the picture tube?


He may have caused some type of damage to the picture tube, but usually rainbow effects happen when magnets are present. Perhaps the ball became charged with a large amount of static, which then discharged across the tube, damaging the controlling circuits.

Jun 03, 2010 | Toshiba 36A43 36" TV

1 Answer

Has rainbow lines on tv screen


shadow mask is warped. tv might have been dropped. crt is bad(picture tube). try deguassing it. if you dont know what that is take it to your local service center. the rainbow effect is a magnetic field of some sort. try unplugging and move to a different location. could be a speaker too close to tv.

Nov 12, 2009 | RCA F36650 36" TV

2 Answers

Bullseye rainbow of colors


This is either a purity fault which is caused by magnetism affecting the screen. You would need to call a service engineer to remedy this as a special tool is required called a de-gauss coil. However there is also the posssibility that it could also be a fault with the shadowmask which is caused by the CRT itself, if this is the case then the CRT will need replaced & this would probably not be economical.

Nov 11, 2009 | Samsung TX-P3075WH 30" TV

1 Answer

Colour is rainbow effect on tv,starts as a semi circle near the bottom of screen then has another two/three colours up the screen?


May be PURITY on the tube, an effect of older CRT tubes caused by a build up of magnetism around the screen, easilt cured with what is known as a magic wand. An electrical wand that produces a magnetic field and is waved in front of the screen to de-magnetise it.
Ant TV engineer can do this for you.

Aug 28, 2009 | Televison & Video

3 Answers

I have samsung 21 green screen


Either something wrong with the picture tube or something with scart input if you use one. / / David

Jul 29, 2009 | Samsung TXN3271HF 32" TV

1 Answer

Colourful picture


Discoloration of this sort is caused by magnetism. All CRT TVs (like yours) have a de-gaussing coil around the picture tube that de-magnetizes the screen (more specifically the shadow mask) every time you turn it on. It is likely that the circuit that controls this coil is at fault. There is probably a cold solder joint where it connects to the main circuit board.

The other scenario is that someone (small child generally) has run a magnetic object very near to the screen, magnetizing the shadow mask (inside the picture tube) and causing a rainbow effect. This is less likely if the rainbow effect is a nice even circular shape. Generally if it's been magnetized by a magnet as described the discolored areas will appear blotchy.

In short, if you have some electronics skills, get in there with your soldering iron and touch up the connections to the de-gaussing coil. If not, find someone who does.

Oct 01, 2008 | Televison & Video

1 Answer

Rainbow


Rainbow effect has more to do with color wheel style and speed.

Jan 31, 2008 | LG RU-44SZ51D 44" Rear Projection...

1 Answer

Sony Trinitron Color Rainbow


Usually when a tv is dropped the phospher screen inside the picture tube will detatch making the rainbow color This cannot be fixed as it requires changing the picture tube. Only other thing is demagnatize it with a demagnitizing coil (used by tv techs) but not likely to fix it since it was dropped. You have a bad picture tube.

Dec 30, 2007 | Sony KV-32FS13 TV

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