UN40H5203AFXZA Samsung TV Backlights turn off and on if tv is plugged.

Question

Samsung Television

Repair guides and support for your Samsung TV.

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Dorian Green @doriangreen

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게시일: 2018년 5월 5일

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UN40H5203AFXZA Samsung TV Backlights turn off and on if tv is plugged.

Hello, So i was watching this Television and one day it just turns off and begins flickering. The front screen just flashes light with no picture on it.

I have an unlisted video below to show how the issue appears.

https://www.youtube.com/watch?v=V9_IE9Ht...

This is all it does and i have checked the capcitors on the power board and such they appear fine and have not taken any damage. could anyone help me identify is it the main board here or the power board? Or some other issue...

Thank you for your time have a great day!

답변되었습니다! 답변 보기 저도 같은 문제를 겪고 있습니다

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oldturkey03 @oldturkey03

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게시일: 2018년 5월 6일

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Dorian Green that does not look like a main board error. It is either the power board or the backlight array itself. Double check all connectors and make sure they are properly seated. If ti is the backlight array, you will have to separate the panel. Not a bad job but it requires some careful work.

You'd need to identify the connector on the power board which is responsible for the backlight. connect a meter to it and see if it supplies a steady voltage. If so it's your backlight. You can always add some images of your boards with your question so that we can see what you see. Use this guide 기존 질문에 이미지 추가하기 for that.

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Dorian Green 의 2018년 5월 6일

Hey again! So I used my multimeter to test a connector on the power board and it did deliver a steady voltage. I unplugged the power supply to led strip connector and replugged it and they ticked like usual for a bit then died this leads me to believe they were the cause as they truly died. I will look around for a backlight array.

Dorian Green 의 2018년 5월 6일

댓글 달기

Hey again! So I used my multimeter to test a connector on the power board and it did deliver a steady voltage. I unplugged the power supply to led strip connector and replugged it and they ticked like usual for a bit then died this leads me to believe they were the cause as they truly died. I will look around for a backlight array. — Dorian Green