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Re: Grundig TV - Colours all mixed - still have...
You have a magnetic interference problem. First, have you put any magnetic objects like speakers near the set recently. They will cause this. Turn the set off at the wall and wait for 15 mins for the PTC device that turns on the degauss coil to cool and operate. It is the loud burst of hum you here when you turn the set on from cold.
The PTC is a postive tempeture coefficient that allows alot of current to flow at first, heating up as it does, and then slowly less current as it heats. This is why you need to turn the set off and let it cool. If the problem remains The PTC may be faulty allowing too much current to flow and upsetting the magnetic flux about the tube. If you dont have the skills you will need a technician to sort it out for you.
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If it looks like a rainbow of some sort and a standard picture tube set it is degaussing problem--set does this for a moment when turned on and if does not complete you get this---to prove this with set on turn the set to face another direction and see if the colors you see change or shift position.
There are things that can be done if this is the case.
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.
hope this helps,ben
well what i think happend is that the convergance has been modified and some parts has moved inside the TV.
There's lots of posts in this website about this problem so just search for convergance.
also check this link it will exlain you exactly how to deal with it
Let me know if you need more help :)