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?
Update #1
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
Update #2
I also tried other various home video tapes and got the same results.