Originally Posted by Katsumi
I just received a new 60ST50 on Monday and have ran into the buzzing issue. I've got about 25 hours on the TV at this point (around 4 hours of blu-ray, 2 hours gaming, the rest has been running D-nice prep slides). I sit between 8 and 9 feet from the TV. In silence (the only noise-making object being a refrigerator in the next room) from my seat I can hear the buzzing on the Red / Green slides, the Blue slide buzzes but is very low, and the white slides of course buzz VERY loudly - I can even hear it from the next room faintly. If I run the anti-IR scrolling bar, the buzzing actually follows the white bar - the left size of the TV buzzes at first, and then the center and the right side as the white bar moves.
During the 2 hours of gaming I did, I played Journey (PS3) and Tales of Vesperia (Xbox). Journey tends to be a bright game, and I could faintly hear the buzzing OVER the sound / music of the game. In Tales of Vesperia, I could hear the buzzing over the sound in the Menu screen.
Has anyone had buzzing DECREASE once they reach the ~100 break-in period? It sounds like my set is still on the "lower" scale of buzzing, but I know it's there and it annoys me as I can hear it during quiet / low volume scenes. It's a October 2012 model with a -2 at the end of the model number, and it looks like the screws have washers when I use a flashlight to look inside the unit.
It was purchased from Amazon, so I still have a couple of weeks to decide if I want to start the panel exchange game :\ Besides the buzzing, the set seems great - I haven't noticed any dithering or other quality issues. I'd hate to exchange and get a unit that has more problems.
Sounds like the two 50ST60s (mfg dates Jan/Mar 2013) and one 50S60 (Feb) I've had in my home, right down to the behavior with the white bar. The only thing that helps with buzzing is decreasing energy consumption, e.g. by decreasing Contrast. I find that with Contrast at 64 on my 50ST60, giving me 35 fL on a white 5% window, I rarely hear the buzzing in actual material. High APL has to coincide with relative silence, and for what I watch, that happens most often in animated programs with lots of dialogue in the absence of background music or noise, such as many Family Guy scenes.
That said, if I replace this set in the coming months, it won't be because of the buzzing. It will be because of the rainbow effect I observe when I move my eyes around the screen. To be clear, this has got nothing to do with motion of the content. It's caused by shifting my focus from one point to another, and the only thing that helps with that is timing my blinks to coincide with the eye movement or moving my focus very, very slowly. It's actually very annoying because skin tones elicit it as well as high contrast material.
All three sets were about the same WRT rainbows, the buzzing, and the IR. By all means, try an exchange, but I wouldn't get my hopes up.