Blue fog on rear projection lcd monitor spreading slowly

Blue blotches spreading over the screen are failure of the optical block

contact Sony to see if you are eligable for a free repair.

Sony will cover the cost of the optical block repair (parts and labor) at no charge through December 31, 2008 for 2004 Model Year Grand WEGA™ Televisions with the blue spot problem.

Models: KDF-42WE655, KDF-50WE655, KDF-55WF655, KDF-60WF655, KDF-55XS955, KDF-60XS955, KF-42WE620, and KF-50WE620

http://esupport.sony.com/US/perl/news-item.pl?news_id=
Read more: Help from Sony for LCD rear projection with blue spots - Home Theater Forum - Home Theater Systems - HomeTheaterShack.com http://www.hometheatershack.com/forums/sony/5351-help-sony-lcd-rear-projection-blue-spots.html#ixzz0gm8a3718

Don't bedeterred by the dating of this announcement, it is a manufacturing fault and they have been pr5etty good to a lot of people with the same problem.

Please rate my help++++Thanks for using FIXYA

catually is problum is related with blue lcd & blue polizer but first you clean the optical unit if the problum gon then ok other wise must chang blue lcd & blue polorize with uv filter plese contect to your nearst sony service centre

Try this at your own risk

http://www.wikihow.com/Fix-a-Stuck-Pixel-on-an-LCD-Monitor

Problem self righted.

Your tube is failing.

The Light Engine is the cause of this. It is not a simple or cheap repair. If the set is over a year old and out of warranty, call Hitachi and see if they would help with repairs.
Hope this helps,
Skyassoc

how to fix my problem Blue haze/cloud in center of screen, slowly spreading .but last time my lamp broken I order by my self and fixed now I have the blue color in my screen please let me know what is the problem may be I need to replaced same parts please let me know how to fix thank you

IN THE MENU CHECK FOR A COLOR CONVERSION OPTION ,,USE IT ,,TO REALIGN THE COLORS

replace the optical (light engine assy)

I am guessing that this is an LCD projection set, Please post the make and model so I can confirm. In the mean time, if it is an LCD, there are 2 possiblities.

1) The lamp may require changing. Sometimes the inner surface deteriorates because of the heat.
2) The "light engine" requires replacement as the heat and light have started to burn the LCD surface. This burning starts to show up as a yellowing usually onm one side first and spreading to the other side.
Dan