Originally Posted by superman1213
It's at panel brightness: mid. I've been using the cnet settings for two years and I'm very accustomed to how the panel has looked for me this whole time. All scenes now look like they take place in the afternoon or evening.
Obviously as the panel ages there will be a loss of brightness, but not all of a sudden and it shouldn't be accompanied by rising black levels. (At least I don't think it should).
I used to be able to turn on the set without any input and not hardly be able to see that it was on, not the case anymore. This was a sudden change about a month ago.
What you're describing is somethat that, as far as I am aware, has not been reported before.
I didn't mean to be patronizing when asking about the luminance setting. These sets have a simply enormous number of settings/modes etc. and I know from experience that it's not impossible to accidentally have a setting at the wrong value.
Hence my question about the luminance setting - it is known that when set to low it causes some of the symptoms you have described (but not necesarily all). It also, IIRC, defaults to "low" in some modes if you reset them back to factory values. Another dodgy setting would be the ambient light sensor setting, but I'm going to assume you have turned that off.
In which case, it's a bit of a mystery. Conceivably voltage levels could have something to do with this, but it is, I would have thought, a huge guess. The only way to know for sure would be to have someone open it up and use meters and oscilloscopes to check. That would be a last resort, I should think.
You could run the set's internal diagnostics. That is much simpler, in that you can do it yourself with a few button presses, but I'd be surprised if it found anything.
You could, if you have not already done so, reset to factory settings and re-install firmware if that is possible. Again, I am risking being patronizing here because I do not know what you have done. If so, I apologize for that.
It is a bit of an awkward one, by the sound of it.