A:Answer Thank you for your question regarding the LC-70LE600U. AQUOS televisions will not pass digital audio from an HDMI connected device through to the digital optical port. The television does not have a digital audio decoder to process the audio. If your audio receiver supports HDMI(ARC) we recommend connecting the system to the televisions HDMI 1 port.
Another option would be connecting your external devices directly to the audio receiver and bypass the televisions audio. This connection allows you to receive advanced audio formats such as Dolby Digital.
If you have any further questions, please contact one of our AQUOS Advantage Advisors at: 1-87-SEE-AQUOS or 1-877-332-7867, Monday thru Friday 7am-9pm (CST) and Saturday and Sunday 9am-7pm (CST), so we can directly address your inquiry.