The hue appears on most viewing unless the area
is showing a blue color then it isn't visible. the semi-circle also seems to be getting bigger at a slow rate.
9 times out of 10 the Blue Polarizer heats up and discolors which causes that problem, all projector's have the same issue and have for years. My professional recommendation is get in touch with Sony, they have been extending the warranty's for this issue. If they won't the have a servicer replace the light engine of which is not cheap.
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the model of the tv KF-50WE610. it has a blue/purple patch semi-circular in shape on the bottom left of the screen. it looks like a light or hue and it's slowly getting larger.
Can I replace the blue lcd in light engine myself or does it take a service call?
Thanks for update,
Problem is Blue LCD in light engine and needs replacement.
Call Sony Support number written on user manual for proper fix.
Need more info, let me know.
Please intimate exact model of tv to help you out.
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