Samsung LCD/LED 3D UNxxC8000
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I calibrated a UN55C8000 LED 3D TV on Monday with less than satisfactory results on the grayscale (but the color gamut was able to be calibrated very well). I was wondering if anyone had any input. (This is posted on the ISF calibrator’s forum as well in case you see it there. Can we say ‘ISF’ here? 🙂 )
I started by activating the Cal Day/Night modes and began calibrating the Cal Night mode. Even though the CS200 (and my check with an i1 Pro) were telling me that the grayscale was pretty much right on, when I checked an 11 or 21 bar Stair pattern, the grayscale was visibly tinted (pink in middle, greenish at bottom). The tinting, however, was not uniform and it seemed ‘spotty’, e.g., tinting occurring at one level, going away at the next level, and then coming back again at a higher level! The only way to get rid of the pinking, it seemed, was to lower the contrast down below 80, but this didn’t completely eliminate it (without lowering contrast to below 70 or so!).
I was told that lowering the max contrast in the Service Menu would take care of the pinking issue. However, I couldn’t find an Advanced menu with the usual 0000 code. (Firmware was updated to the newest available – 1022.1) Never did find out how to lower the max contrast in the SM since I couldn’t find it.
I observed something else which was a bit strange: on the Stair pattern above 235 there were TWO bars clearly visible, and no matter what I tried with contrast, I couldn’t merge them.
It also seemed that in order to get a reasonable grayscale, the Smart LED function had to be off completely (setting it to Low didn’t work). Turning the Smart LED function on when watching program material then caused havoc with the picture.
I tried calibrating Movie mode and had much better success (eventually), although there was still a hint of tinting and non-uniformity when I put up the Stair pattern. I couldn’t get rid of it. The Movie mode also had to be calibrated with the Smart LED function set to Off.
I was wondering if anyone had any suggestions or similar experiences. Thanks!
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