The sony projector is displaying a bluish hue on screen. One projector has it on top and another has it on the outsides in a circular manner. color correcting does not fix it. What could be the problem and how to fix it? They are about 5 -6yrs old. Thanks
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Bit of a common problem with Sony projectors of the era that they often had problems with fading and/or cracking of one or more the LCD panels - especially the blue ones for some reason, leading to the type of problem you are experiencing. No point in swapping components either as they will both have similar faults - although replacing an LCD in a video projector is almost impossible without the manufacturers jigs to mechanically align them afterwards anyway...
Have a very close look at the blue and see if it's perfectly uniform across the whole screen. If it is then altering the hue or colour temperature settings in the menu may help. If it's not then either there are heaps of pixel failures (appearing as small rectangular spots) or degradation of the polarisers (green may be affected more than the others). If you show the menu, do the white areas appear bluish. If the lamp is very old then colour changes start to happen.
Is the whole screen bluish in colour or just areas. If you look closely at the screen are the bluish areas composed of rectangular pixel shapes. If it is then the blue lcd panel may have dead pixels, otherwise it's a glass polarizer plate that may be degraded due to aging.
If this projector is an LCD (liquid crystal display), your LCD probably gone.This usually happens after a period of time with an LCD projector.Try cleaning the LCD or take it to your Sony dealer.
Using the on screen menu, check the hue or wall color settings.
Varies the color level from +/- green to +/-blue. The red level is used as reference. This adjustment is only valid for
Video, Component and TV standard inputs (not valid for RGB and DVI digital).
Using the Wall Color Correction [Wall Color]
This function allows for quick adaptive color correction in applications where the screen material is not white.
The following nine options are available.
• OFF • Blackboard
• Blackboard (Gray) • Light yellow
• Light green • Light blue
• Sky blue • Light rose