Turn on my tv samsung HPR 4252 and I get no sound or picture

My LED TV has sound, but no picture. - Tom's Guide

www.tomsguide.com/answers/id-2771720/led-sound-picture.html

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TV Has Sound But No Picture Troubleshooting Guide ...

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https://www.youtube.com/watch?v=ysHfaQKI45M
Aug 31, 2012 - Uploaded by Repair.com
Here are some steps to ease you through TV picture loss-from prevention ... But now when I turn on the tv there only sound nopicture. ... had sound etc. with very very faint picture if you look very closely (which I was). .... How To Fix Samsung LCD TV -Samsung TV Repair (Blank Screen) - Duration: 9:21.

Samsung LCD TV No Picture but has Sound - Electronics ' DSLReports ...

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The T con board is faulty. It is the board with flat ribbon cables going to the bottom of the screen. It is not hard to replace this board. You can get one from here:
TV Parts Universal TV Stands DLP Chips ShopJimmy

I have the same problem, and it will get worse. I have read and seen video on youtube, stating that it is capacitors on the power board, that need to be replaced. I watched the tutorial video it seems pretty easy, I am going to try it this weekend. Will update.

YOUR OTHER POWER SUPPLY IS GOOD, YOU NEED TO REPLACE THE Y-BUFFER AND Y-MAIN BOARDS

If the picture os goint to lines right from the midpoint downward then most likely you will have to replace the lower y-buffer board part number BN96-02027A. The board is mounted on the left side of the plasma panel when you take the back off. The upper y-buffer board sounds like it is failing as well and this was a very common issue on the older Samsung plasmas. The part number for it is BN96-02026A. Please take a moment and rate my answer. Thanks...

It depands if you watch say 5 hours a night times 7 nights 35 hours a week times 52 weeks a year. you be suprise.

REPLACE LAMP

Be sure the TV has no problem by playing a DVD player. If problem remains unchanged, call for service because a few boards could involve to. In the worse case, panel should be defective.

its the lower buffer card.. (y buffer lower board) they cost about $90.. i changed mine myself on my samsung hpr-4262 42 inch plasma.. pretty easy,, took approz 20 minutes.. the card has 3 ribbon cables and 3 other connectors and 1 screw.. removing all the screws out of the back pannel took the most time.. i found the repair manual for my tv on line for $13 (download PDF file) the manual had a trouble shooting section and what board to replace for each problem.. got the manual from here http://store.payloadz.com/ ordered the replacement board from www.partstore.com

good luck

troy

This is a screen address failure from part of the matrix addressing. This can be caused by fair number of types of faults to cause a missing part of the addressing. You will not be able to fix this yourself.

Find out who the authorised local Samsung service is for your area. They will be able to give you an estimate.

Jerry G.