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