are you serious?
The info was already mentioned to you a few pages back..it's SBRT and UBOF to balance the other inputs.Leave brightness and contrast at the center when adjusting SBRT.
Now here is what you do,i'll make this simple and clear....
1: Leave the contrast and brightness in the middle
2: Adjust SBRT in the service menu leaving UBOF at 0 for the input your using,example..Component input 5.
3:Once that is set then you can adjust UBOF for the other inputs to balance black level,you might not need to use it since SBRT may do the trick but i don't own your tv or know what is connected to it so it's your decision where to set it.
4: Enjoy the show, your all done!