Originally Posted by connector
ok, i have done your instructions. i can reach without discoloration my maximum contrast (100) but it's more easy to see the last bar flashing at 98 than 99 or 100· I Have leave it at 98· I have tested rgb color clipping too and i don't get any clipping at 234 (and a little above). All seems fine in warm2 and movie mode. Now i'm wondering, it's like i have 'more room', do i need to touch something in service mode or am i having low contrast?. I see everything fine but i'm not an expert... before with my previous Ps3 i was only capable to see flashing in white clipping pattern to 235··· Now with my new samsung e6500 bluray i can reach 253 without any problem... is it normal?
None of this means that 98 or 99 or 100 is the RIGHT SETTING. The right setting is much more difficult to arrive at... much more complex, and it really requires a meter to determine how the TV performs with different Backlight settings so you can find the Backlight setting that produces the best images. Sometimes that's the lowest Backlight settings because the blacks will be darkest. Most of the time, though, the Backlight goes funky at lower settings and you may have to use a few clicks or more above the lowest Backlight setting.
The RIGHT Contrast setting might end up being 50 or 63 or 77... you just don't know because you can't determine where the Backlight should be set.
The test/setup discs only help you find the highest possible Contrast setting you can use without losing steps. The CORRECT Contrast setting depends on using the optimum Backlight setting and not having any eyestrain issues when you view the TV in a dark room. The accepted range for 100% white in a dark room is 30-35 fL. You might be producing 80 fL with Contrast set to 99... that's so bright you will have eyestrain issues in a dark room. The problem you have is that without a meter, you don't know whether you are at 80 fL or 50 or 32. All you can do is view TV programming or a movie for 2 hours or more than take note of whether you detect any eyestrain. If you do, reduce the Contrast setting, maybe 5 clicks, and try again. Keep repeating this until the feeling of eyestrain is gone.
There is no way to predict the proper Backlight and Contrast settings in advance. They are different for different brands and models.