11ASUS Xonar D2X3.5 Connecting TV Tuner Card1. If you have a traditional PCI or PCI Express TV tuner card on your PC, youmay need to connect it to the audio card to send the tuner card’s sound toyour PC speakers.2. Secure the PCI/PCI Express TV tuner card and screw it into the back-panel.3. Connect the audio output header from the TV tuner card to the Aux-In headerof the audio card, as shown in the figure below.For optimum TV audio quality, Xonar uses ADC recording to digitize the signaland loops it back to DAC playback. Please select Aux-In as the recordingsource in the Xonar Audio Center’s recording mixer and enable the monitoringbutton to pass this signal to the audio output. Using this setup, you can eventurn on sound effects such as Pro-Logic IIx to expand the stereo TV audio to 5.1or 7.1 channel surround sound. TV audio on your PC will become even betterthan on your TV set!