Do you notice that on gaming or movies the screen dim when majority of content is black? how to fix it: It works on TU7000 just like previous RU7100 and NU8000

Power off tv and wait 10 seconds

Press this combination on your remote: MUTE 1 8 2 POWER. Service Menu should display after a long boot up sequence, displayed in the upper left of screen. If not go back to step one and try again.

Navigate to SVC > Other Setting > CAL Data Restore and select this option. There will be a USB error message, just click ok.

Back out to the main and you should see an advanced option now listed at the very bottom. Highlight Advanced and press 0 0 0 0 on your controller. This should open more options below.

Move down and select Picture_2D > Subsetting, this will open the important menu.

You will be changing PWMINI2D and PWMMOVIEINI to a higher number. These are setting the minimum dimming intensities and seem to be some function of the backlight intensity settings in normal menu. If you set to higher number, up to 100, the backlight will not dim during dark content.

Default values are usually 5 and 15 or 15 and 30. You can change both to 80~90 or to 100 if you want a really bright picture. I recommend changing PWMINI2D and PWMMOVIEINI to 85

Note that every firmware update the TV resets to default value so you must do it again