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HPR4272 Power Supply Failed

by mekelly / May 11, 2011 7:16 AM PDT

I own a Samsung HPR4272X/XAA and I have audio but no video. I had the set diagnosed by a professional TV repair shop and they said the power supply (BN96-01801A) board was bad. I think he said I was getting +70V, but not +210V.

I am going to order a new power supply and have no problem removing the old board and installing the new one.

My question is after the board is installed are there any voltages that need to be tweaked or is it good to go? If voltages need to be tweaked, which ones?

Thanks in advance!!!!!!

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If you read this forum you discover
by R. Proffitt Forum moderator / May 11, 2011 12:26 PM PDT

That it's not a TV repair forum. Such details will like get you a reply to arrange for service or to call "parts."

But there is some hope. Did you inspect that board for bad caps?

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by mekelly / May 11, 2011 9:22 PM PDT

I had the set professionally diagnosed by a TV repair business (in
business for 20+) years who said the board was bad. I don't think it
was bad caps, I think there's a bad voltage regulator and several burned
diodes and transistors.

So, I am 99.9% sure the board is bad and want to replace it.

question is, does the board need any voltage tweaks after installation?

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by R. Proffitt Forum moderator / May 12, 2011 4:27 AM PDT
In reply to: Help

While you can try 1800SAMSUNG to ask them if such information is available, your 20+ year pro should know the ropes and how to find out that information. Today's sets are mostly plug and play on such boards except for firmware updates where required.

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Follow up
by mekelly / May 12, 2011 5:45 AM PDT
In reply to: Sorry.

He's not doing the work, I am going to pick up the set and do it myself, that's why I ask. I have since secured a service manual and there are voltages that need to be checked and possibly adjusted.


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