After 1hour of red led flashing the tv turned on with an issue

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M J @ns57seooufghht9

声誉积分: 23

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发帖于: 2019年10月31日

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After 1hour of red led flashing the tv turned on with an issue

Hi,

i have a samsung tv lcd serie 5 from 2012

it have of problem that it turn on after some hours

so, after searching, i found that i need to replace the capacitors on the power board

but the capacitor looks ok, not blown or something

anyway, i replaced 2/8 capacitors

and the problem didn’t fixed and i got new problem which is the colors in the screen and blinking led 6 times every 1minutes for about 1hours(which is better than before that it was taking 4 to 5 hours to turn on)

Another thing

The motherboard have a lot of acid in the back of it, so, i clean it with alcohol 95%

What i should do other than buying new motherboard or power board?

Do i need to continue replacing the capacitors ?

what is the reponsable components for that colors ?

Two boards photos

Appreciate any help !

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Lucas @lucasjak 声誉积分: 1.1千 5 3 · Answer 1 · 2019-10-31T22:58:44-07:00

Lucas @lucasjak

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发帖于: 2019年10月31日

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Hi M J,

yes, you must exchange all of the capacitors. The capacitors can look fine, but inside the capacitor, there could be an issue. The electrolyte is having some “life cycle” and if the electrolyte is old, it can lose capacity or lose the right conductivity. The capacitors will work fine for about 2 up to 4 years, then they will start losing their electrical characteristics.

The first step in any repair centre is exchanging all of the capacitors, except tantalums. If the issue will still continuing, write below, and we will try to find another solution.

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After 1hour of red led flashing the tv turned on with an issue

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