That is brutal. I can't understand how these guys can get away with it. If the colour wheel in the service manual has been replaced with another part, does that not tell you that something is up with the original part? Instead, he feeds you the line that there is no problem with the colour wheel, and that the noise is normal. Sheesh!
My brother-in-law just got his colour wheel changed in his October 2004 set. He said that the new colour wheel the technician installed looked alot different than the original one. He also said that it made a huge difference, and that the TV makes almost no noise now.
Keep on them Dan.