KLV-40R452A red indicator flashing 4 times
Sony Bravia LED TV LCD TV / HD TV / 4K TV model KLV-40R452A red indicator flashing 4 times
What is the meaning of error code & how to fix it
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@nithinnk this should help out.
Post a couple of good images of all of your boards with your question. That way we can see what you see. Use this guide so we can see what you see. Check for any damaged looking components. follow the flowchart and check the components listed.
If nothing else you may have to change the board.
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