Hi everyone. I've read a few threads on this forum about Bauhn TVs which power on and get sound but the screen appears black. I read somewhere I should turn off the lights in the room and shine a torch on the screen to see if I could see an image. I can, and based on that I believe the backlight may be dead - does that sound right?

If so, I'm wondering if anyone knows whether it's possible to buy a replacement backlight and if it's difficult to replace? The TV model is ATV55UHD-1217

Thanks in advance for any advice!