Project - Samsung TV not working (Kenilworth CV8)

My Samsung TV (UE40K5500) has stopped working and I have tried quite a few things to fix it. It could be a hardware problem and you will need the tools to fix it. At this point, I either take it to the tip or give it away to someone who would like to try and repair it for themselves. Screen size is 40 inches and outer dimensions including stand: 36 inches (92cm) w X 23.5 inches (60 cm) h.