@abdullahakram "screen dimming problems" really does not tell us much. Give us more detail about the "problems" It could be a backlight issue on an issue with your settings. Of course it can also be an issue with your power board. So, as you can see, we need more specific information from you, if you want your TV fixed. Also, we really need to know the accurate TV model number. The TV you picked " KDL40HX850 is a 40-inch TV and not a 32 inch. Again, we need you to be specific.