Summary Of Problem
This blog has been created as a means to track credible information on the defects that have been reported in Sony LCD televisions.
Sony's official comment to it's owners that are experiencing clouding on their new XBRs* has amounted to one of the following:
a) If you can still return the TV, do so. (This is what I was told when I first called about my cloudy 40XBR2)
b) It is normal. The clouding is "normal" and "acceptable." It is neither of these two things. It is clearly a defect.
Several have speculated that the problem could be due to stress on the structural frame of the TV that is causing the panel to warp. Others have attributed the clouding/mura defect to the lack of quality control in the Mexican plant where these TVs are made. TVs that were manufactured before the move to the Mexican plant appear to be devoid of defects. One thing is for sure, there are many irate owners who demand Sony both acknowledge and fix the problem!
Here is a link to the AVSForum thread that was created 11/10/06 for discussion on the issue.
Official Sony 46" XBR LCD Uneven Backlight/Cloudy Thread
*The Sony XBR 40/46 inch and KDL-4xV2500 models have been reported to have clouding and mura defects from the screen backlight.