Question about Samsung HLP4663W 46" Rear Projection HDTV

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I lose picture and it's replaced by black screen w/ colored block

I Have 2 problems. First, when I turn on the TV it cycles on and off 2-3 times before finally turning on . It goes from standby to blinking green lamp, standby, lamp, etc. The 2nd problem is when it does come on, within a couple minutes the screen goes black and there are these colored blocks that appear as a pattern across the screen. If you shut the TV off 2-3 times, everything works just fine. I'm not sure what is causing this to happen. The color wheel went about 3 months ago and the entire (motherboard?) was replaced by a technician because it was under warranty. It was the entire chassis that held the lamp, color wheel, fans, etc. It's no longer under warranty so I'm trying to find out what might be causing it myself.

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  • jaldrova Jul 01, 2009

    that doesn't sound right. It happens when I first turn it on so the system is cool. The problem goes away after a few minutes, so I'd be more apt to think it's because it hasn't warmed up, not overheated.

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  • Master
  • 643 Answers

Heat is usually the prob. sometimes when it overheats it will warp the whole cabinet inside.

Posted on Jul 01, 2009

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