samsung led tv repairs

[Getner]

My samsung led tv UA32F4500 has no picture but stil has sound and if you illuminate the screen with a flashlight you will notice some details of the tv show. I know i can fix mit if i could be oriented on the parts or have a diagram. Can you help me out please?

 

[jbaker22]

How many hours has it been running, and has it been on full brightness? The LED back light might be dead, or even it's controller board..