Question about Standard (CRT) Televisions

1 Answer

Bush RFT TV

The colours on screen have changed with blue and green being the dominant colours now. There seems to be a lack of red ie, all people are now light blue. There seems to be a halo effect around the outside edge of the screen. I have tried reconnecting scart and changing setting on the TV but no joy. I'm now worrying that it's something more terminal!

The picture on my tv is mainly blue and green for about 2 weeks. I just turned on my tv and it was like this. I have reset the picture settings and taken out the scart cable but the colour on the screen is not changing. Can anyone help with this please?

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  • santuraj Dec 05, 2008

    I have the same problem- last night the tv was showing a good picture with no trace of trouble, but today only blue green is visible. our TV is also a Bush RFT TV please let us know how it was fixed and any idea how much it could cost?

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  • 54 Answers

The picture tube of the tv has 3 color in CRT Red, Green, Blue. The red cathodeof tv set has no function, its either the resistor become higt resistance, that why u need a repairman to replace it.

Posted on Apr 11, 2008

1 Suggested Answer

SOURCE: Bush RFT TV

try the thermistor degauss coil,

Posted on Jul 27, 2008

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1 Answer

I have a Bush RF6685VPL/A and the screen colour is very distorted. It looks like a blue red circle in the middle, with a blue and green ring around it.


Good day!

That problem is usually happen when the TV is near the magnet or the speaker.


You have to do is demagnetized the screen of your TV using screen Degausser.

The picture looks like this:
nineng_7.jpg

Just plug-in the degausser and push the button in front of your TV.

If you did not have that degausser please buy it to this link:
http://shop.ebay.com/i.html?_nkw=degausser+&_cqr=true&_nkwusc=degauzer&_rdc=1

                                   Thank you and don't forget to rate my answer.

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1 Answer

I have a bush colour tv and there is a blue,green,red colour wash right across the picture so people''s faces look half blue,green red....sort of as if there is a rainbow across the screen.. i do not have...


It sounds like your TV may need degausing.
Is your TV situated near to any loudspeakers or other devices with large magnets inside them? Or has anyone been near your TV screen with a magnet???
You need to try to get the screen demagnetised (degaussed). Many TV engineers have a degausing coil that could do this. It only takes around 20 seconds at most.
Some TV's like Mitsubishi have a DG button on the remote, that does this function without the need to call out an engineer! It only needs one press of the button every few years!

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2 Answers

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ok well "tube" tellys as they are called use an electro magnet to keep the picture stable and colours correct its called gaussing now if you have a speaker or something magnetic nearby it will stuff up the colors but only normally producing colors like purple,green, or white
if you have colors across the screen (that aren't caused by magnetic force) then you need to take it to a repairer or decide wether or not to buy a new one this issue can turn out to be quite hard to fix and can be expensive the different colored electron guns may be burning or burnt out causing pale color or it could be as simple as a power transistor in the H.V supply has shorted out..and causing power issues to the tube.
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Thank you for your reply. I have since had my TV repaired by a local engineer. The TV needed a new part to restore the colour.
Helen Shaw

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try the thermistor degauss coil,

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You can start with the make, model and age off the back of
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