Things You'll Need
Instructions
Turn off your Sony DG510 audio receiver, TV and Xbox 360. Unplug all three devices.
Plug one end of an HDMI cable into the HDMI OUT port on the back of your Xbox 360 and the other end into one of the two HDMI IN ports on the back of the audio receiver.
Plug one end of the other HDMI cable into the HDMI OUT port on the back of the audio receiver and the other end into an HDMI IN port on your TV.
Power on all three devices. Use the Input button on your TV and audio receiver's remote controls to select the appropriate input mode. For example, if you plugged the Xbox 360 into the HDMI DVD port on the audio receiver, you have to put it into DVD mode to hear sound. TVs with multiple HDMI ports typically number them, so if you plugged the audio receiver into HDMI 1, you'll need to cycle through input modes until you reach the HDMI 1 screen.