• There are three projectors in a projection TV, they are Red, Blue and Green. I think they are called 'projection guns'. This is not a DYI project unless you happen to have worked on projection TVS before - if you had you would not have asked this question. Depending on the make and model of the TV it may have a replacement part (CTR Tube/Projection Gun) however alignment and convergence adjustments need to be made. That is not an easy process. Right now you are losing the green projector/tube/gun - eventually it will go completely.

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