at First It the screen was normal,but after a while its starts shadowing everything and make it blurry its like the image is doubled,after we turn it off for while,and it went back to normal and after like 20 minutes its starts shadowing again
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@agilzachry verify that your TV is a KDL42EX440. If so, then the prime suspect is the T-con board. You'll find that the Gamma IC is either failing or part of the IC power supply is failing when it heats up.
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its KDL-40R350B
@agilzachry time to check the boards. Post some pictures of the circuit boards with your Question so we can try and identify the Gamma IC for your model
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