Have TV Questions? Ask a TV Technician
HiCustomer Thank you for asking your question on JustAnswer. The other Experts and I are working on your answer. By the way, it would help us to know:
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If you wish to repair it yourself what type of electronic training do you have?What type of TV test equipment do you own?Do you own and know how to operate an oscilloscope? Thank you again for trusting us with your problem.
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The color rings and bullseye pattern is normally caused by a problem with the degaussing circuitry. Every time the TV is turned on there is a degaussing coil that should be turned on to degauss the CRT. If you have anything magnetic near the TV such as speakers this can cause the problem. A TR repair person has a degaussing coil that can be used to correct the problem. Click here for more information on degaussing. These coils are not expensive or you can click here for the information needed to make your own. There could be other parts no longer within the needed specifications. The only way to know for sure what is causing the problem, which parts that are no longer within factory specs and for proper repair all the electronics must be diagnosed by someone with the correct electronic test equipment and the skills to use the test equipment.
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