Backlight keyboard problem

I have a new problem with my keyboard's backlights, Today I've found that just a part of backlights are working
"6,T,Y,G,H,B"
what is the problem .... I've tried the Preferences and F8,F9,F10 .. these functions just work on the listed keys.

Maybe the backlights have blown or been damaged. If the MBP is still warranted, I'd recommend taking it back to the Apple Store and ask them if they can fix it.

all those keys are in one line in the keyboard, so they will be connected together with one backlight, you can't really do anything about it other than what Mr Macintosh suggested, the apple store, it's not likely to be a software problem