First, I have an old VHS unit that I confirmed working by outputting tape to our current TV.
I then connected the VHS unit to the Canon Elura 85 using the provided cables. I switch it to playback, AV>DV to ON and played the tape.
I see nothing on the viewfinder of the Elura. Well, nothing except some black lines jumping here and there.
I think the Elura isn't sensing full video playback, that it's a blank tape perhaps? Not sure if there's a setting that would tell it to ignore whatever it thinks as blank tape and just play the noise?
I'm assuming the Elura is thinking that the VHS is spewing ghost signal... https://www.manualslib.com/manual/24448/Canon-Elura-80.html?page=84
I also tried other various home video tapes and got the same results.