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Problem with Samsung HLR4667WAX

03-18-2010, 11:39 AM
Hello and congrats on a fabulous forum. I have a problem with green vertical lines on all inputs on my samsung hlr4667wax/xaa. This TV was 18 months old when it failed. Samsung authorized tech service diagnosed it as a bad color wheel and estimated repairs at $600.

I recently unboxed this TV and have read extensively on your forum as to what the problem might be.

I can see a perfect picture if my dvd player is connected to the VGA ports on the side. No other inputs, dmi, component will work.

Am i right to assume that the colorwheel is NOT the problem, but rather a bad board or chip?

Can anyone tell me what board I need to replace to correct this problem, although its my wife's TV and she is glad to be able to view it from the VGA inputs, I would like to repair it to view HD.

Thanks very much in advance for any assistance.


03-18-2010, 11:56 AM
The uniform vertical lines across the screen (looks like prison bars?) normally point to a bad dmd board, the main system motherboard. I don't think an HLR, which is around 5 years old is worth fixing. It's possible the board is not longer available, but possibly a used on on ebay, tho the used one is probably ready to fail as well. You could probably get a new LCD for the same price as the board.

That would be my guess on the problem.

03-18-2010, 12:30 PM
Thanks very much Clearday. It is as I suspected and the part is very expensive. I'll let the wife watch TV from the vga port.

Thanks for the quick reply.

ps. was this samsung the worst roll out in the company's history what a piece of crap???:roflmao:

03-18-2010, 12:39 PM
The 46" DLPs seem to have been Samsung's worst idea. They were the smallest DLP and probably there was some built in issue with such a small screen trying to work with a rear projection footprint.

Good that you can still use yours at least.

03-23-2010, 12:37 PM
Hi,Yes your problem sounds like the DMD board.This is how it works: http://electronics.howstuffworks.com/dlp1.htm Basically the light of the lamp goes through a tunnel that carries a color wheel(rotating disc with a gamma of colors that creates the colors on your tv)then the light of the lamp goes through the DMD board which is a chip composed of around 2 million pixels that creates the images and colors.When it starts to fail it will create black bars,pixelation,color distortion or white dots on screens.I know a website that sells these DMD for around $270.00 and I have the guides to replace it .Email me at [email protected] .have a blessed one.