Chris I don't have time tonight (this morning, it's 1AM) and I have to drive to Katoomba early tomorrow morning but if I get a chance tomorrow afternoon I'll do some research and see if I can find anything.
My son was saying USB is different because it's a digital signal, not as simple as an analogue signal through a normal graphics type cable which I'm familiar with, that and TV technology.
I'm a former electronics engineer but I forget so much these day, my brain has long turned to mush (brown hair turned grey, grey matter turned brown) but I will do some research and see if I can find anything out and let you know.
Leo
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