Pink cast in images from NEC VT540/440 projector

I would suspect a bad or poorly seated video cable.

the lcd panels are broken,you need a new one
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Jerry Lampdeng Limited

Hi,

It is likely that this is permanent damage caused by degradation of the LCD panels. These projectors were first shipped in July 2008 and should have been supplied with a 3 year warranty. You should contact NEC support here and see about having them repaired under warranty.

Well first check the colour scheme of your monitor and of the projector.
If this doesn't work check the working hours of the lamp. Try cleaning the filters and if this doesn't solve your problem the best thing to do is to change the lamp of the device.
If you need further assistance please leave a comment. Cheers

Replace LCD

I assume this is an LCD. I don't remember the s4 being a DLP projector.

This sounds like the LCD panel used for the red color has gone out. The image is made up of red, green and blue images layered upon the screen. If the red panel has gone out then there is nothing filtering out the red light in the image. This causes a nice red hue to the whole screen.

It could be a simple open and reconnect fix. I personally have never opened a projector, so I'm not going to walk you through it as I do not know how hard it would be to tinker with. It should eb a cheap fix for a true repair man though.

A pink image normally means a loss of green signal.If you are using Computer input you should try replacing your input cable to see if this is the problem. If it is pink with video also then the projector most likley has a internal problem.

Using the on screen menu, check the hue or wall color settings. [Hue]
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
• Pink

could be bad bulb is it setting in right is coler wheel freeley moving

When the image turns pink, we find that replacing the cable between the projector and the lap top fixes the problem.