Can't turn on illuminated keyboard?

I have a new keyboard with lighting. It shines constantly, even if PC has gone down. I wanted to change that and loud tips on the internet, I turned off the lights. But I can't turn it on anymore. Find no more tips, only for notebooks. Can someone help me please. At the bottom of the keyboard is a light on top right under the arrow, which is not normal pasture

is on.

Hello Klose 11 If you are interested, I found out for myself. For the buttons in the upper row ~~ Pressure ~~~ Pos1 ~~~ Image ~~ the lighting can be switched on and off with the key Pos1. Well, at least with me.

DO ME EVERYTHING TOTALLY FALSE

WITH ~~~ PRINT ROLL PAUSE ~~~ WITH ROLLS ON AND OFF

DAF [R IF I WRITE JERTYT NCIHT MORE RIGHT, HAVE ALL ADJUSTED IT. SORRZ