I'm having a very annoying issue with my JMB telly not sure which is the model number but i apparently have two different ones JT0250002/01 and 50/149I-GB-5B2-FHKUP-UK. My telly is 4 years old and i didn't get warranty. Earlier today the picture suddenly went but I can still hear sound and I can see a picture when putting a flashlight on the screen. I'm pretty sure its the backlight and I'm willing to do the repair myself but unable to find the LED strips anywhere. Am I able to fix them individually? Or do I need to do the whole strip? I haven't opened the tv up yet so I have no idea how many actually need fixing. Any help would be greatly appreciated.