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I purchased a complete in box non dual shock PlayStation at a flea market. It loads games fine but both controller ports are not working. When I plug in a dual shock controller, the analog light will not go on. I don’t know if the memory card ports work as I can’t access the memory card screen. The console itself it spotless, no rust at all. I’ve tried removing the controller port ribbon cable and examining components but everything seems fine. Note: The original controller it included has a broken cable where someone had twisted each wire together and covered them with electrical tape. I haven’t messed it with it yet, but it doesn’t work on a PS1 I have. I include this info in case it may have caused the problem. Could a bad controller have blown the port? How would I troubleshoot this? Any point I can test with my fluke meter that would help to troubleshoot the issue?

Yes, it is a SCPH-5501. Serial Number U9176557 I’m not sure what to take a picture of as everything on it looks clean and normal. I’ve since put it back together and in the box for storage. Anything in particular you would like a picture of?