Question about Standard (CRT) Televisions
I have a cheap TV from Asda, not very old, problem is that when placed in different areas of the room the picture colours up either pink or green in patches, it is very noticeable on the "blue" AV screen. In all other respects not bad for the money, but it really is a problem
TV's will show funny colors because of magnetic fields affecting the face of the picture tube. A "degaussing" circuit (a coil of wire around the tube and some kind of control circuit) is supposed to try to neutralize this when you turn the set on. Sounds like it's not working correctly in your TV, or may not be strong enough to counter the field.
A real cheap set may have no degaussing at all, or may have a manual degauss button on the back. Does the owner's manual tell you anything? The connector from the coil to the circuit board may be loose. Try reseating it. (Be careful if you take the back off your TV. Make sure it's unplugged, and be aware some parts - especially the picture tube - can store a charge for a while after the set's off and can give you a nasty jolt.) It's also possible the tube is defective, but unlikely unless the set was dropped or exposed to a large magnetic field (like kids playing with a magnet near the face, or turning off a vacuum cleaner right in front of the set).
Hand-held external degaussing coils are available (check eBay). But without seeing exactly how bad the color is under what conditions it's tough to say what's best to try.
Posted on Jun 30, 2008
This is for the same problem of samsung DLP. The problem is totally different from the answers above as DLP's do not require degaussing and do not have anything to with magnitism or degausing coils. DLP's have color wheels or optical color modules with LCD inside for color. Samsung uses color wheel. The noise confirms that your color wheel is bad and about to fail which will lead to set not coming on. This needs professional help. Check out at www.fixurtvs.com for more FAQs and price quotes.
Posted on Feb 21, 2010
Hold and press subcode on your remote control until a factory menu appears. Scroll down using the arrow keys and select the reset option.
Then simply tune in your channels.
Posted on Mar 20, 2009
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