No display on Hisense TV LED 50k360
So I found this TV and decided I want to try and fix it.
The red light blinks 3 times and I can clearly see the LED lamps are working in the back (opened the back cover), but no display is showing . Already tried using a flashlight and checking for picture but saw nothing.
I have a multimeter and great technical skills. Would love to get some guidance.
Is this a good question?