In recent years I have collected some Sony Walkman and Panasonic cassette players, like the ones I had when I was young (80's, 90's). Now I have a few Aiwa's that I will try to bring back to life, one of them works and the sound is great. I will try to learn from your experiences and advice.
Welcome to the forum, most of us started the same way but now we have a ton more info available. Some of these can be pretty difficult but almost all are doable with patience and time.
I just happen to have a Aiwa Walkman here. I don't know why Hs- px337 don't know what to do with it doesn't work