Here's a pic So you're saying there's only ac coming from the transformer
If you don’t know this, you simply aren’t yet knowledgeable enough to be doing anything inside a mains-powered device safely. Please stop before you injure yourself.
Also, a “modular connector” is a specific type of connector (used as phone and Ethernet jacks and plugs, primarily). There is nothing of the sort here, and they don’t have anything to do with power, so we don’t really have any idea what your question is even really talking about.
Edit: Your posting history makes it evident that you are trying to do repairs FAR beyond your current skill level. But it also shows a history of asking for help, then not doing what is suggested, and of giving no responses at all to questions asked by people who try to help. This, combined with lousy photos and your refusal (even after being told to) to use punctuation, mean that your questions are unnecessarily difficult, and then pointless to answer anyway…