Chosen Solution
Watching the worst show ever made, (TWD) and right as one of my least favorite characters tells her husband that she slept with his partner My screen flashes twice and the TV goes blank. No back light, No bouncing screen saver thingy. The only thing i got is sound. Looks like this question has been asked a lot and i cant find much of an answer. Although i did find a video on YouTube were a guy steps you through breaking the TV down and fixing a few issues. I’m just looking to see if anyone has any other info on this matter. Seems to be a common issue. ( https://youtu.be/n8ugAETrxYc)- Link to a fella fixing some $@$*.
Hi @bobnwhitney , Try shining a torch at an angle close to the screen when the TV is on and there is audio to check if there are any images at all on the screen. They will be very faint if they are there, so trying this in a darkened room may help. If there are images then you have a TV LED backlight problem. You will then have to determine if it is a power board problem or a backlight LED problem. You could try measuring the backlight voltage supply on the power board or you could purchase a backlight tester - example only that will test the backlights and if OK then you know that the power board is the problem. Here’s a video that shows how to replace the TV LED backlights if they are faulty. If there are no images then you may have a mainboard, tcon or power board problem. Check out the power board for any obvious component damage such as burnt out components or bulging capacitors etc
