AndyfromFL

My VDI cable is getting older and cuts out sometimes, so I'm trying to replace it. My setup is a JTV89 to an HD500, and my old cable generally works but I've tried buying two of these brand new with no luck: https://www.guitarcenter.com/Line-6/Variax-Digital-Cable.gc No sound, can't turn on the JTV because it doesn't detect a signa. It doesn't list my equipment as compatible, but I'm fairly certain it's the right onel. Anybody have any ideas why?