First off, I should mention that my display is a PN58C8000 so any answers to the following questions about running the ADC/WB calibration option for the various inputs (HDMI, AV, Comp, PC) need to be applicable to it--
1) Should the RGB color range for the 8x8 black/white checkerboard pattern be 0-255 or 16-235? I've read through this entire thread and see that one or the other has been used, but no clear explanation as to why either one was chosen over the other.
2) Notwithstanding whatever the right answer to #1
above may be, I've used both 0-255 and 16-235 successfully on both the AV and HDMI calibration options but I keep getting "Failure" on the Comp (component) calibration; what am I missing/doing wrong in trying to get the Component input to calibrate successfully? FYI--not only have I tried both RGB ranges, I've also tried them with both black and white in the upper-left corner (i.e., 4 different pattern combos in all)...still no dice.
Observations during/after performing the ADC/WB calibration:
a) I do not see/get the bouncing small square during the calibration process that others have reported in previous posts; I do not know if the bouncing square is displayed only on LCD/LED and/or older plasma models, but I did notice during the process that the screen intensity brightens in small and infrequent steps before I am eventually presented with "Success"; subsequent attempts to (re)calibrate HDMI (and AV) after an initial successful calibration take but a few seconds before those attempts return "Success" as well.
b) After I had obtained a successful calibration, upon performing a factory reset and/or power-cycling my display via the remote I discovered that the calibration didn't take hold as the images were still dark (I did an A/B comparison with an image I had on-screen prior to doing the calibration). I redid the calibration except this time I did a Mute-Mute-Power Off afterwards since supposedly that keypress combo saves (any?) changes made in the Service Menu; dunno if that really did the trick but whatever--this time the image wasn't dark.
I don't really use the Component (and PC) inputs a whole lot but the OCD in me still wants to get at least the Comp calibration to pass successfully since every once in a blue moon my kids want to play their Xbox360 on my display and as such, I connect the 360 using its component cable--thus it would be nice if I can get the Component input calibrated successfully/correctly.
Thanks in advance!