Question about Samsung HP-R5052 50 in. Plasma HDTV

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I have a 42" samsung SP S 4243 plasma tv, i only get a black screen no sound and no picture, the fuse's are good what else would i need to check?

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  • ziongigi Apr 23, 2008

    VERY DISAPPOINTED MY SAMSUNG 42 INCH HAD HALF BLACK SCREEN AND THEN FULL BLACK SCREEN WILL THIS BE EXPENSIVE TO FIX? SHOULD I JUNK THE $3,300 PIECE OF JUNK I BOUGHT OR SHOULD I HAVE IT REPAIRED. IT IS 2 1/2 YEARS OLD. I'M HAVING A NEW T.V.DELIVERED TODAY AND NOT SURE IF I SHOULD SAVE IT AND HAVE IT FIXED FOR MY GUEST BEDROOM.

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Do you have any idea what this would cost aproximately?

Posted on Apr 23, 2008

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The power supply is having difficulty. The typical cause is underated electrolytic capacitors. I would examine all the caps (round cylindrical cans) in the power supply and see if any of them are bulged. Not a bad idea to just replace all of them with better rated parts.
These type of caps have all kinds of specs. Not just voltage and capacity, but also temperature, case size, and obtuse stuff like dissipation factor. Most all power supplies use switching type designs that run at serious frequencies (not the old 60 hz - more like 25,000hz) that stress out these electrolytic caps and many circuit designers (or their cheap bosses) don't specify the better parts. Replace them with the same capacitance, but higher voltage, and higher temp parts (hopefully they will not be too big physically).
Ya, I know you paid $$$ for this TV and they scrimped on cheap parts. Yup, the more expensive a product is, the more pressure the bean counters put on keeping the price down.
Hope Ya Fix It.

Posted on Mar 05, 2008

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Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
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