Question about Samsung DLP HL-P5663W 56" TV

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Hlr5667 w I getting screen and white lines when I turn it and delayed images but backgroung is clear, it doesnt turn on when it freezes. I replaced lamp. some timeswhen i turn it on its like it trips into play in it works fine but most of the time it i have the lines and delayed picture ect. What could be wrong? could it be color wheel, power cord, somthing overheating, or is it the expensive main board? The fans are working and I dont have any abnormal blinking lights that are supposed to tell ou whats wrong. Rusty

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  • Rusty D Feb 08, 2008

    thanks for the info but i meant the lines are only green could it be the color wheel i why does it shut off? Lastly why does it work 1 out of 10 times after unpluging it from the back and replugging it? It then will work all day until i shut it off again.



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I had black vertical Lines. Sometimes across the entire image, sometimes partial. Came and went. Seems a dead-ringer for cold solder joints on the BGA of the DLP IC. 
So i threw down $15 and bought the service manual online, pulled out the entire light engine assembly, and blew everything out, vacuumed etc. 
I then tightened the heat sink on the DMD (supporting the DLP chip). Made the problem consistent (black lines) always. So then I slightly loosened the spring clamp screws - black lines went away.. Obviously this varies from each device, where the cold solder joint(s) are etc, But this will keep the Mrs happy until I work up the courage to reflow oven the DMD board, or get a new one. Anyone reflow oven their DMD boards yet? 

Posted on Jun 21, 2008

  • gregwjacobs Jun 21, 2008

    I should add some info here to save ppl asking.

    Manual from -

    It cost me $15 for a PDF download. Worth it.

    I've attached an image which shows the screws i tweaked. Don't loosen to much or you'll compromise the heat sink and fry your DLP chip (heat bake). You've been warned. 

    You don't have to do anything other than remove the back cover and you will get access to the screws. Ensure you UNPLUG your set - do not attempt if you are useless ;)


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Your tv has a failing DMD board. White vertical lines is the first symptom of this it is bad solder connections on the Control Ic this is what we call a BGA ic and is not serviceable in the field if you are good with electronics you can replace the dmd board it is a task in itself you are looking at about 450 or so for the part. The part number for the DMD is Bp96-00678A. The light engine comes with a new DMD board and it is easier to change only takes me about 20 minutes or so this would be part number Bp96-00822G and could run as low as 500 dollars after you return the core depends on where you get it.

Posted on Feb 08, 2008


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