AVS Special Member
Join Date: Apr 1999
Location: Pauma Valley, CA USA
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I own a JVC RS40 that is about one year old and has about 400-500 hours on the latest(003#) bulb. When I turn the projector on the picture is beautiful with what looks to me a combination of ideal contrast, black level, and color saturation. However, after about twenty minutes of watching the color seems to drift to the point where there seems to be a slight loss in the saturation and perhaps a slight color tone that leans towards brown. Seems like contrast is slightly affected too. It's not a super large difference but enough that you eyes detects something is not just right. I am using settings posted by Kris Deering way back when these RS40's were pretty new. As I said, when the lamp is cold the pic looks very good.
Given the nature of the drift to what looks like brown tint is there some color setting changes I can make after it warms up that might bring it back to the way it looks when turned on. I would estimate that this shift is about 5% from cold. Could there be something else that is causing this?
Any suggestions would be appreciated.