Can't adjust the brightness on the monitor

Hey! Now I will help, the monitor with 1680 * 1050 is very good and I hope it will be enough for you for a long time, did you take it as used?
LG has settings at the bottom right on the plastic panel, and then you need to interact with them, in the form of a sun + - try pressing.
Maybe they bought it on the side and changed the backlight in the monitor, thereby bypassing the scheme, there are nuances in the repair, in which case I recommend refraining from such a product, this is not the case, somewhere in a store, in the kitchen it may have a very place.

ferdouzIGEVSK
There is no sun there but there is MENU)))

Maks_432
Here is a link to the instruction badly looking for!
https://info4help.ru/manual-lg/monitory/lg-flatron-w2242t

Maks_432
Visually for those who are far from the PC!

X_ray_83
Thank you very much, kind person!

X_ray_83
Well, a very old picture