TV sound is not output if the connection and settings of other devices are incorrect. Check the connection and settings by following these steps:
- Connect the HDMI cable from the cable box HDMI OUT to the AV receiver HDMI SAT/CATV.
- Connect another HDMI cable from the AV receiver TV OUT to your TV HDMI IN1.
- Change the function of the AV receiver to SAT/CATV.
- Set the INPUT of your TV to HDMI1.
- At the AV receiver, set Audio Output to Speaker or Speaker+HDMI.
- At the TV, set TV Speakers output to Audio System.