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This set has no internal manual adjustments for color. The Tracking or B&W balance is accessed via the service menu. I don't suggest you attempt to adjust without instrumentation. the trouble with your set is not an adjustment. Most likely the Optics are at fault. This model has had issues with filters in the optics being destroyed over time by the lamp. The blue haze will get worse and continue to grow over the whole picture. The only option is to remove the Optics (light engine) and sent it out to be rebuilt.
If you wish to get some details; visit the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.
These issues are problems in the light engine (optics block)
the dots are called "starfield" and the geometric is "roadmap"
replacing the light engine will fix the issue. for awhile, sony was extending the warrany on the engine for these issues only, but that may have expired.
You most likely have a bad optical block. The blue dots are a pretty good indication of this. Sony has extended the warranty of some of their models to include an extension on the optical block replacement. I don't recognize your model number (Not a US model?) so you will have to check with Sony in your country to see if your set is covered. Please be sure to rate this solution. Thanks!
my sony is 4yrs also it has blue dots on the left side from top to bottom and a blue blob on rt. bottom corner no longer under warr. please send repair solution.
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