Question about Samsung PN50B450 50 in. Plasma TV

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My problems with samsung pn50b450 is it clicking on the power board and will not power on.The capitors all look good.but i changed them any way.I still did not work so i ordered another board and it is still doing the same thing..What could the problem be?

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SOURCE: Samsung PN50B450 50 Inch On-Off Problem


Posted on Dec 09, 2009


SOURCE: I have the same issue with the Samsung power

Because of the power supply problem, it sometimes causes the main board to become defective, replace it.

Posted on Jun 01, 2010

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The capacitors have failed. Don't put power on it! Replace the swelled Capacitors with the same Value and Voltage and Size. Those bad capitors will cause a myiaid of problems.

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After replacing a power supply regulator board to any plasma displays, you have to adjust the Va & Vs voltages according to panel specifications. You haven't here specified whether you've done it or not. If not, you have to do it. If you're sound in electronics, and wish to get more details, check this link. Selecting the view option, either to Mosaic / Flip card, can be selected by the drop-down list, by the top left of the display window, will make surf easy. You can also do a search, by type in the brand name / model number / IC used, in the search box at the top right of the display window.

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I don't have a solution but my Samsung 50" 720P Plasma is doing the same thing. It's already been in the shop for a new panel and now just after the warrenty runs out this happens. I'm NOT recomending this TV to anyone. NO MORE SAMSUNG for me...

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The capitors on the back might be bad this I have fixed on these tv's many times. That could be one of the problems and the capitors are on the power board inside the tv. If you do not know how to work on electronics I would have a pro do it they contain hight voltage so be careful if you try to fix it yourself.thanks

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1 Answer

How do i tell if capictors are swollen, what is dm board

the top of the capacitor will be rounder then the others
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good luck!

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