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Hello everyone, in this lesson we will take a look at the troubleshooting of a blurred screen

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Blurred screen is a very easy to repair fault, because it has fewer fault points

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The screen failure is generally either a problem with video memory,

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or a problem with the GPU, or an interface problem

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For a machine with a blurry screen like this, we need to replace the output interface first.

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After confirming that the blurred screen is not caused by the interface, we need to measure the video memory

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You can test the video memory several times,

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because some blurred screens may not be easy to test

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You can try to use the overclocking test

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After confirming that there is no problem with the video memory,

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it is generally a problem with the GPU.

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You can try to solder the GPU or replace the GPU.