We own a Samsung HP-R5072 Plasma TV. After one hour or more, the lower part of the screen goes black. This black screen comes and goes and then stays for 15 minutes or more. Last night the lower screen had striped white, red, yellow stripes. This is too much. I hope you can help
THIS LOOKS LIKE A LOWER Y BUFFER
Testimonial: "Thanks for your insight. Now I need to get a repair man in to do the job. Or is it something I could do myself?"
YES ITS EASY TO REPAIR
1 UNPLUG TV
2 TAKE OFF BACK COVER REMOVE PLASTIC COVER BUTTOM MIDDLE THATS PART OF THE CABLE HOLDER ,AFTER TAKE OF MIDDLE METAL COVER THAT PASSES OVER CONNECTERS DONT FORGET TO UNSCREW VGA SCREWS BEFORE .
3 REMOVE BUTTOM SCREW ON BUFFER BOARD ONLY ONE
4 UNDU TOP CONNECTER BY LIFTING IT UP DELICATLY
5 DISCONNECT THE 3 BROWN FLEX CABLES BY LIFTING UP
6DISCONNECT THE BIG BLACK CONNECTER AND THE WHITE ONE BESIDE IT BY SLIGHTLY PULLING THEM OUT OF THE Y MAIN PCB HOLD THE PART FIRMLY AND WORK IT OUT DELICATLY .
PICTURES 1 BACK COVER 2 PLASTIC COVER 3 Y BUFFER 4 WAY TO POSITION YOUR (TWO) HANDS TO PULL OUT BOARD
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PICTURES 1 BACK COVER 2 PLASTIC COVER 3 Y BUFFER 4 WAY TO POSITION YOUR (TWO) HANDS TO PULL OUT BOARD 
WHEN YOU NSAY LOWER PART IS IT FROM THE MIDDLE GOING DOWN
Middle going down. It seems to be temp related. It takes longer to black out half way if the AC is on and the house is cooler. Make any sense?
Yes it goes black from the middle down to the bottom of the screen.
Thanks
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