Originally Posted by pivcon
I have seen this too on my 60A3000. My theory is that it is a reflection of light entering through the front of the TV off the mirrors/panels in the light unit inside the TV and the bounce back is most noticable in the center. This theory is based on: At night with no lights on, there is no such spot through all of the AVIA video tests (e.g. all the IRE field tests, needle patterns, etc.).
Further, I have I "torch lamp" behind my couch and it shoots light up onto a cathedral ceiling with a 30 degree slope, which unfortunately reflects the light back to the TV pretty directly. The lamp has a dimmer and If I play with the dimmmer i Can see a direct change in the spot on the TV (this isn't a screen surfact type reflection, it is clearly something that is going into the TV being defused and showing up as a light glow in the center of the screen with no reall "Definition" to it. Then I turned off all the lights, at night, and used a flash light and could get the spot to move in the center of the screen by moving the flash light around (I still bounced it off my ceiling and didn't directly put it into the TV).
I duplicated this test with my Mits 55" RP CRT TV and that TV has a more glossy screen protector and I get mostly a screen surface reflection that is so strong that I can't tell if I am getting a interior reflection as well.
During the day in a room full of windows this appears as a slight glow on a black screen and you may not think of it being the light in the room. See if you have the glow in a dark room with no substantial light sources.
I also do not see it even in a bright room if there is any normal video content on the screen. Just when there is a large IRE10 or lower black to gray area covering the center of the screen, and again, only if there is substantial light in the room. I am going to try to determine which angle the entry is from by blocking light on top/left/right and see if it is mostly affected by one entry point.
I don't think this is a geometry issue, I do think it may be due to the shorten depth of the cabinet. Its not geometry in that its not a bowing of the video being sent to the screen. But it could be the cabinet's interior angles/mirrors are such that light coming in from outside can bounce around hit the panels and bounce back to the screen as this glow.
Finally, I can see the glow when the TV is off if I have a light source on and can't if the light source is not there. As the TV is off and the lamp is off in the TV, I think this makes it pretty conclusive that the glow I am seeing is not coming from a source inside the TV.
It is a disappointing coming from them "I hope the A3000 is technically picture perfect" but given the price, size, other features, and the great PQ and the fact I don't notice this when watching my movies at night in my dim room, its not a deal breaker for me. However, if anyone said on this board it was something they got resolved with a replacement or a repair, I would get in line for the same thing.