LG 32LB580V LED LCD backlight problem

The inverter that feeds the backlight is going thermal fail. Get a service manual and replace all capacitors 10uF+ on secondary side of backlight inverter. Also, look with a big magnifier for any kind of fractures in the switching transistors, rare but you got to check. This is so common there are vendors of “capacitor kits” by make & model #.

Did you fix ur backlight power issues?

If LEDs are damaged in backlight it can be repaired without any special tools, but you need to have some experience of assembling/disassembling of LED LCD TV screens. I have go though this video guide and was able to successfully fix my TV backlight issue : https://www.youtube.com/watch?v=6CVT9-Lt...