AVS Forum Special Member
Join Date: Feb 2007
Location: Northwest Wisconsin
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I have a problem with the Chroma Alignment pattern. This is best seen on the lower left, where there is a gray background. The problem is that it is not symmetrical in the horizontal plane. The left edge of the vertical red line is lighter than the right edge. It seems that there is a shift to the right a pixel or two of red or maybe some component of the gray background. I have seen Stacey mention half a pixel misalignment, and I'm not sure I can tell the difference. I'm viewing this up close to the screen.
I have tried all the HDMI output options from my bluray player; RGB, YCbCr (4:4:4 and 4:2:2) and they all look the same. I also tried adjusting sharpness extensively without any improvement. Based on some subtle asymmetry of the lesser burst patterns with YCbCr 422, YCbCr 444 is the setting I have settled on. On all patterns involving color, there is an asymmetry of the right and left vertical edges.
My BR player is a Panasonic DMP-BDT 310, and my TV is Samsung PN51D8000 if that information helps. Connection is HDMI.
The Samsung has the ability to use blue, red, and green filters, but I haven't tried looking at the pattern with the different filters.
Any idea whether this is a TV issue, a BR player issue, or how to figure it out?