Question about Televison & Video
Your tv is one that uses 3 small tv tubes to generate and project the image on the screen. Because the tubes are a little apart the image that they project would be off for each color so to make it clear they have to distort it using a special board called the convergence board. To move the images of the each tube requires a lot of power so circuits used to do that are subjected to great stresses and fail on a regular basis - in your case the circuit responsible for the blue tube.
Actually it the case of your tv the failure is such a common occurrence that specialized companies have made repair kits just for them - you buy one of the kits, you open the tv and replace the components with the ones from the kit. The kit is quite cheap - $70 - but it should be installed by someone who has done such delicate solderings before.
Here it is
Posted on Oct 16, 2010
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Posted on Jan 02, 2017
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