Sony STR-DA2800ES Operating Instructions Manual page 30

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.
Audio signals
or
A
A Coaxial digital cord (not supplied)
B Audio cord (not supplied)
* When you connect equipment with an analog audio jack and analog video jack, set "Audio Input Assign" and
"Video Input Assign" in the Input Settings menu (page 83).
30
US
DVD player, Blu-ray Disc Player
Video signals
B
*
or
C
*
C Video cord (not supplied)
D Component video cord (not supplied)
D