Green/yellow tint on my kds-55a2000 - Sony KDS55A2000 55" HDTV

SOURCE: Sony Bravia KDS-R50XBR1

Thanks for the suggestion. I did find elsewhere on this site that my particuliar unit has an "optical block" service enhancement warranty issue that entitles me to a free repair.

SOURCE: Sony KDS-50A2000 screen is in green tint

My Sony KDS 50 A2000 is 17 months old. Its the 50 Inch SXRD projection model. About two weeks ago the screen developed a green tint with cannot be tuned out, then a few days later the message began to appear on the screen that the bulb was nearing the end of its life and must be replaced.
Fortunately I have the Circuit City extended warranty.
I called and within just a few days a serviceman came out and replaced the projection bulb.
The Result: No change in the picture, the green tint remains on all channels, so I'm awating the next service call. Under the service warranty they have the option to repair or replace this set. If indeed this is the light engine (optical block) which I suspect and its going to cost $1,000 or more I may be looking at a new set.
When it works this is a great TV, but I have had three Sonys now including two other standard CRT models and now this one joins them in the junk heap, the other two also bit the dust after just about two years. Is it time to give up on Sony?
I know they have a class action suit on a similar model for this same problem. Caveat emptor

SOURCE: replaced the lamp in mysony KDS-55A2000

I have the KDS-50A2000. The TV abruptly shut off. When I turned it on again, it blinked seven green lights and then four red lights. I replaced the lamp to find out that it did not fix the problem. After reading several posts, I checked the fans today. I blew two and half years of dust out of the main fan and the lamp light fan. It worked!

SOURCE: sony kds-60a2000 has a green tint to picture

I have had the same problem for about 6 months, and never paid much attention to it. I also noticed that when trying to change the menu color, the colors do not show up correctly.

Now it seems to be getting worse, and so I started doing some research, starting with the Sony site. That is when I found out there is an extended warranty for the KDS series (50a2000, 55a2000, 60a2000, r60xbr2, and r70xbr2) TVs because of an optical block issue, until June 30, 2010, no matter when you bought the TV.

You can see the recall here: http://esupport.sony.com/US/perl/news-item.pl?news_id=277&mdl=KDS60A2000

It seems they are extending the warranty, but not doing a recall. In other words, they aren't telling anyone, but if you happen to find the information, they will replace the optical block, if necessary. The closest I could find to the green hue issue is a purple haze on the screen.

I don't know if this is the problem, but I have scheduled an appointment to have the optical block changed. I will repost after the optical block has been changed and inform whether this is the fix to the problem.

Either way, the optical block seems to be an issue and would get it replaced whether you need it or not.

SOURCE: sony sxrd (KDS-60A2000) developed yellow tint

Called them today and they set up appt for installation of the required part. They admitted a "known problem" and were straight forward about offering to take care of the problem, No fight necessary. Have the model and serial number ready off the back of the set.Call them ASAP