Solved! samsung un series lcd tv

[ptyadrn]

samsung 75 inch UN series has no image/sound.tuend on smart logo appears and stays stuck on backlight.cant access the menus or inputs.while troubleshooting we noticed that the tv will not power off we have to unplug from electrical outlet to shut off.

 

[paulchezter]

Possible for a mainboard problem. Or if the TV is still under warranty, contact the manufacturer for the repair.