

Right, my friend ... then what you have to do is change the card ... since the LVDS signals and the CDC converter pass through it, they take care of everything that is the video on the friend tv.
Regards
Or you can also try this solution from the partner tecnypc .... it is the only solution when you don't want to replace the component.
Here the link
https://www.yoreparo.com/tv/televisores/lcd/preguntas/1359156/tv-lg-32ln520b-da-sin-imagen