My controller won't turn on anymore.

I bought this controller to "test out" electronics concepts I'm learning; I paid next to nothing for it, so it's no big deal, but I still want to try fixing it as a learning exercise. It was turning on and off intermittently; I tested almost all the components with a multimeter and they were fine, but I think I fried something... Now, it simply doesn't seem to be getting power to the initial components (capacitors or resistors—I'm still getting the hang of this), and I was hoping someone could give me a hand. I'm trying to find the schematics for it; getting them for free would be great, but unfortunately, I've only found paid versions so far (not that I blame the creators). I'd also like to understand why the USB-C port isn't delivering any voltage or current to the nearby resistors or capacitors anymore. I can send photos or videos if that helps clarify things.