I'm trying to connect an older 321 system to a 4k smart TV. I get DVD audio, FM radio etc. I have no picture on my TV. I've checked all the HDMI inputs and I only get audio through the speakers. I'm told it may be the actual HDMI cable. I need an older cable, version 1.0-1.2 vs the current 2.0 type of HDMI cables used today. Any idea on this one????