Optical Digital Connection
All home theater receivers have this connector. You should use it if both your computer and receiver have it and if your PC and/or your receiver don’t have optical digital connection.
For this connection you will need a simple RCA-RCA mono cable, like the one shown in Figure 9. Usually home theater receivers come with a spare cable for this kind of connection, where the plugs are orange. The color isn’t important; you can use a cable with red, white, black, yellow, pink or whatever color plug.
Figure 9: Mono RCA-RCA cable needed to connect your PC to your home theater receiver using coaxial digital connection.
On the receiver, plug one end of the cable to the input labeled “Digital Coaxial In”, “Digital DVD In” or similar.
Figure 10: Connecting the cable on our receiver.
Then connect the other end of the cable on you PC, on the plug we described on the first page of this tutorial.
Figure 11: Connecting the cable on our PC.
Now everything is connected and should work just fine. You need to change the input selector on your receiver to “DVD In”, “Digital DVD In” or similar.