Question about Samsung HLN5065W 50" Rear Projection HDTV-Ready Television

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DLP TV starts to loose picture after 1 - 1/2 hours of use

I turn the TV on and after an hour or so the picture starts to flicker .... then it gets worse and the picture jumps around. Turn the TV off, then back on and all is good .... but 30 - 45 minutes, problem returns.

TV is a Samsung DLP HLN5065W

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  • kcharles505 Jan 20, 2009

    We call it strobbing. After about 20 minutes, the picture starts to blink. After we turn it off for awhile, we can turn it back on to watch it for another 20 minutes.

  • gdm27 Feb 03, 2009

    have the same problem screen flickers like a bad florecent light or strobe light. changed light bulb still doing it. what could be causing this. problem goes away if i shut down tv and let it cool down. then it appears again after half hrs. could it be the color wheel or something else

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I can tell you this...I am not a tech but do have some knowledge through trial and error. I have a Toshiba 50HM67 DLP TV and my screen was flickering real bad and the picture was horrible (orange and purple blotches everywhere on screen. The yellow lamp light continued to flash so I purchased a new bulb which helped for the first initial hour or two after installing. The TV began to flicker even worse and even on bright lamp the issues returned. I then decided that I would open her up and do a deep clean of all lenses and ballast components. Wearing latex gloves (to prevent oils on your hand from getting onto components) ad taking pictures s I disassembled the light engine, I got to the color wheel only to find that it was beyond filthy. Note that I purchased this TV in 2007 and here it is 2014. Need less to say, I used some rubbing alcohol, Q-tips, dust off, vacuum, and a clean static-free cloth and now the picture looks like the day I got it. Even after installing the new lamp the yellow light kept flashing. After cleaning everything off and out, no more flashing yellow and no issues what so ever. Just be careful when removing the color wheel as mine what about as big as a half dollar. Hope this helps and feel free to send me a question anytime!

Posted on Dec 10, 2014

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This tv has a 3 board video path. Analog main pcb --->Digital main pcb --->DMD pcb. see which inputs have the problem to narrow it down. if only some inputs, suspect analog board. if everything flickers(all inputs and menu), suspect the dmd or engine. you can see the lamp shine out the back. if the lamp is flickering, suspect lamp or ballast.

Posted on Dec 08, 2008

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Posted on Jan 02, 2017

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dear,

if you have checked it by changing the lamp then there you will see a thin peice of coloured plastic (colour wheel). Vacuum that plastic and all around it but dear plz dont touch that one.

regards,

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