Hey guys, Hope you can help me.
I've had a KDL-46Z4100 for nearly two years now, and recently I've noticed that the way the TV displays white is changing, pretty drastically. So far this issue is only really noticeable on pure white or light gray content... It's as though there are patches of dimness or off-white color across the screen. Tried fiddling with the picture settings on the TV but nothing had much of an effect on it.
Colors and blacks have otherwise not been affected, and you can't see any issue during normal use (that doesn't involve a lot of white). Brightness seems fine, though it is set at MAX currently and isn't THAT bright (I know you're not supposed to set it to max and actually I didn't realize it was set that high until I went in to fiddle with the settings. Annoyed at myself for that one as I know it's taxing on the bulb). The problem only becomes noticeable when viewing content with large area of white, and it's something I've noticed only recently, so I know this has just developed.
I've tried multiple inputs and sources, the issue remains. TV hasn't been moved or damaged in any way. I've updated the firmware once, in the spring of this year (the sparkly patch), I believe it is the most up to date version though I can't be positive at the moment.
I've attached a photo I took of the TV while viewing a pure white picture which pretty clearly shows the problem. The screen seems very dim in the image, as I lowered the exposure on the camera a bit so you guys can see the issue I'm seeing, but it's actually a bit brighter. Still very noticeable.
Does anyone have any ideas what this might be? I've heard that when LCD bulbs are dying it could result in screen discoloration/dimness. Could that be what's happening here? Or is it something more serious (and costly)?
Of course this happens when I'm out of warranty! Any advice or information would be greatly appreciated.