Just brought the old NES home from my parents’ place where it’s been gathering dust for the last ~15 years. First I connected it to my HDTV with the original RF cable. The image was otherwise fine (for the input) but it kept flashing every ~half second with some kind of disturbances. Same with the audio.
Then I connected it with the composite cables through the OSSC to a computer monitor (new’ish cables). There was a very weak shadow of an image on screen, almost completely black. Audio was fine, though.
So I guess I’ll proceed by trying to clean up the connector, check the cables etc, but I’m a bit concerned if the composite output is somehow broken. Could there be something I can do with the OSSC to debug/solve this problem?