Hello greetings friends could you help me with the following; I have an LG LM-K7960 device I have already followed the steps of how I approach it but it does not work or with the control that I got it is LG itself but a more modern one, I have also removed the volume knob and I have seen that it has 2 small points also say that there is a solution there but I dare not be a short circuit and I burn the team I need your help with this team model

But what could be the fault,