Sony STR-DA5700ES Operating Instructions Manual page 31

To connect equipment with jacks other than HDMI jacks
It is not necessary to connect all the cords. Connect cords according to the jacks of your equipment.
Blu-ray Disc Player, DVD player
Audio signals Video signals
or or
A B C D
A Coaxial digital cord (not supplied)
B Audio cord (not supplied)
C Video cord (not supplied)
D Component video cord (not supplied)
31 US