Sony STR-DA3300ES Operating Instructions Manual page 31

It is not necessary to connect all the cables.
Connect audio and video cords according to
the jacks of your components.
The following illustration shows how to
connect a component which has analog jacks
such as a DVD recorder or VCR, etc.
DVD recorder, VCR
..
Audio signals
Video signals
Camcorder,
video game
To the VIDEO 3 IN/PORTABLE
AV IN jacks (Front panel)
GAudio cord (not supplied)
0Video cord (not supplied)
(9 Audio/video cord (not supplied)
Note
Before connecting cords, make sure to disconnect
the AC power cord (mains lead).
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