Hi My mp 575 is not even 6 months old and yet it is showing hundreds if not thousands of scatered black pixels that look like dust and bright pixels that look like stars in the sky. I searched the manual for troubleshooting but it does not include such a problem. I would really appreciate it if you could tell me what's wrong. Thank you and more power. Elvan

There is probably a blockage in the pipe or on the entry to the motor.
I would take it to pieces and clean it.

HI,
Are you sure that there is balck dot on the sreen. Check one more time is it any dust on the screen.
Black spot Means pixel of the Lcd sreen is fault. There are thousands of pixels in an lcd screen. when any of the pixel or a group of pixels become faulty the black spot will appear. Its not possile to rectify the problem other than replacing the LCD panle if its avilable. The avilability of lcd screen is very rare.
Ajin

The black spot can be from one or two sources. The first, is a called a stuck or hot pixel. Your camera's sensor has 12.9 million pixels (12.3 million are used for the image). Many times, a hot or stuck pixel is a bright color - red, yellow, green, etc. It can be any color however. Dark or black pixels can also be called dead pixels as they look like they're "off." Regardless of which your camera suffers, it will not respond to light projected on the sensor by the lens. You'll have to have manually edit the pixel in each image, or return to Nikon for sensor replacement. Nikon used to perform a mapping out of the pixel, but it seems that they don't do this any longer. A sensor replacement can cost in the hundreds of dollars.

The second source, is dust on the sensor. A pixel(s) blocked by dust will show up in each picture, but will appear to be more in focus in some images than others - depending on the aperture value of the camera when the exposure was made. A stuck pixel usually has a very definite edge on all images regardless of aperture setting. A simple, careful wet cleaning of the sensor with a product designed specifically for the job can solve this problem pretty quickly.

Here's a video for wet sensor cleaning from Youtube There are others here too. I hope this was helpful & good luck!

It sounds like the DMD chip has faulty pixels, some permanently on some off

Hi!

Is it connected to a Laptop or any device? What type of connection are you using?

Keep me posted. Thanks!

graplics drivers not installed properly....

Shure, you can have it fixed. I strongly suggest that you call around and check prices first. Samsung IS a quality brand. How many TENS OF THOUSANDS, if not more units do you think they make? Getting ONE bad, is a pretty god ratio. Sorry it had to be you that bought the bad one.

it sounds like a lot of dust in the light engine lens.usually pixel defects are purple or black...question is your set a lcd or a dlp format? and how large are the dots. if real tiny it will be dust. if large it will be insects... have a qualified serviceman take a look.. good luck...

Our Vizio started doing the same thing after only three weeks, except it was also showing green pixel when we watched DVDs.  After checking this site and others and trying all the "tweaking" advised, I finally called Vizio's customer support.  They were extremely polite and tried to help over the phone, but had to send someone to the house to make the repair (anything 40 inches or larger earns a house call). The tech arrived on time and was extremely professional and pleasant -- he had to replace the daughter board and LVDS cables.  So far, so good.  

some of these panels were mis-calibrated from the factory after not aging long enough. Let the TV run for atleast 2 hours and adjust the Vs and Vscan voltages. When it is blue in the left I have found generally the Vs is about 10 volts too high.