My samsung HLP5674W would change from color to shades of green and purple then the next day be fine. it has now gone from green and purple hues to black and white. what do i do? thanks tons, barb

SOURCE: Our Color TV is now Black & White

It could be the color wheel and in fact probably is. I've seen them shatter which would explain the noise. They are glass and spinn at 9000 rpm. An involved repair though definatley a job for a pro. It could be worse, probably a few hundred will do it. Was the TV begining to be a little loud before the failure? Could be a sign, i've seen many noisy color wheels.

SOURCE: Samsung DLP TV- colors seem to mess up -Faces have green streaks

sounds like you are haveing an issue with th color wheel timing. either the color wheel is bad or the dmd board is bad.only way to know is to have a technician look at it.

SOURCE: Everything has gone Green

http://forums.xbox-scene.com/index.php?showtopic=625804

SOURCE: purple hue on image or vertical lines (noise)..viewfinder has normal color or flickers

I had the same problem and used the solution posted here (recall). They responded very fast and sent me an refurbished Canon Powershot S5 1S camera. I am not sure if I should receive the new one or insist my old one to be repaired.

SOURCE: Samsung HL-R6167W DLP color problem/buzzing noise

My 3 yr old Samsung DLP has the same buzzing noise, had a tech out today and he said "color wheel". Thank goodness I purchased that expensive warranty, This is my 4th repair in 3 years.