Originally Posted by skibum5000
interesting. Trying to calibrate the HDMI named PC I found too much green primary and not enough red. My color doesn't adjust red, but perhaps I could dial green way down and blue down a bit and then boost backlight a notch or something. Hopefully that wouldn't just make green ok but red even more faded out. Have you played around with HDMI PC mode much?
I may need to get these dials enabled. I wonder why they turned them off to begin with. I wonder if it might be easy to set them on in the service menu and perhaps adjut the primaries directly there.
Looking at the SM, it didn't seem to promising to be able to set the oclors for each and every invidual mode, such as say HDMI PC mode vs HDMI regualr mode. Hopefully, I'm wrong.
That is interesting about too much green in HDMI PC. I haven't looked at PC. I was wondering if the My Color Control sliders did anything in PC, but I guess you've answered that.
When I looked at seeing how far off Dynamic Mode is with the colorimeter, I found that there is a setting (I forget the exact name, but it is only enabled in Dynamic Mode, and it's called something like "Auto Color" ... it says it boosts green and blue). This setting does boost both green and blue to ALMOST what they are supposed to be compared to white (green=71% of white; blue=8% of white luminance are the targets). Unfortunately you can't adjust grayscale in Dynamic mode. The Color adjustment increases or decreases the luminance of all colors, but the proportion remains the same. So you could get red, green or blue to the right value, but the other two would be off. TomHuffman recommends setting red with the color control. When you do that with the 71, green and blue are too low.
If you look at craigr (CIR Engineering) calibration post, you can figure out that he uses slightly different numbers for target luminance of RGB compared to white than TomHuffman recommends. Except for blue it could be rounding error:
Huffman's "targeted luminance values" and MY ACTUAL RESULTS:R=21% of white MY ACTUAL IN ABOVE POST: 20.9%G=71% of white MY ACTUAL IN ABOVE POST: 64.4%B=8% of white MY ACTUAL IN ABOVE POST: 5.7%
craigr's "targeted luminance values" and his Actual: (looking at his luminance for white and then using his targets for RGB)R=21.3% of white Actual: R=21.2% - 21.5% of whiteG=71.5% of white Actual: G=65.9% - 67.6% of whiteB=7.2% of white Actual: B=6.1% - 6.7% of white
(As I already mentioned, in Dynamic Mode with Auto Color=ON (or whatever it's called) the green and blue get very close to where they should be.)
craigr's luminance values for green and blue are a little closer to the goal than I am finding. He may have been able to get some improvement in the service menu (where he did the entire calibration, btw.) This would mean of course that these adjustments are there. OTOH, maybe it is just the superiority of his measuring device. The way he describes these numbers, it seems like he is saying that's just what they are. So if I can get them to enable the controls in My Color Control, I'm thinking pretty much everything that can be done with the 71 can then be done in the User Menu (see below about hue/saturation).
In another post craigr said that he couldn't move green to where it should be in the CIE chart and that the 71s don't have a full featured CMS. The features lacking appear to be adjustments for hue and/or saturation (probably both, I'm guessing.)
When I was talking to Sammy support and getting them to send a tech to turn on the My Color controls I asked if it was just something to turn on in the service menu. They said if you go there your warranty is voided. I don't know but I have a suspicion that they can tell if you go into service menu.