The V6a has no analogue video inputs of any description. If wanting to convey analogue video to it then this isn't possible without using some form of intermediate analogue to digital conversion. IN the case of this AV receiver then yes, this would need to be analogue to HDMI in nature.
Other options include connecting the player's analogue video output directly to the display and then using the player's left and right audio connection to the AV receiver.
You may also find the following helpful:
A simple explanation of how to connect a VCR to modern TVs (even without the yellow socket!). Both mono & stereo TVs are discussed.
geoffthegreygeek.com