Originally Posted by tehprince
Does anyone know if the LC-70LE755U supports 5.1 pass through? I have a sonos playbar and I'm thinking of getting a couple of play 3's for the rear speakers, but if the TV doesn't do 5.1 pass through from the HDMI then I don't see much of a point.
Can't seem to find the answer to this out on the internet. Any help would be most appreciated.
Check the manual - odds are pretty good that it works this way across the 7 series:
Digital Audio (Dolby Digital/DTS compatible): The optical digital output terminal will output Dolby Digital (when available) or 2 channel PCM. The digital optical output terminal only sends an audio signal in Dolby Digital when receiving Dolby Digital surround sound from a digital broadcast channel through the tuner, network apps, and USB ports on the LED-LCD TV. The optical digital audio output will only output in 2ch stereo from sources connected to the TV via HDMI or RCA.
Analog Audio: The television features a 3.5mm (minijack) audio output for connecting the television to an analog 2-channel receiver. You will need a minijack-to-RCA adapter (119MCON2M, sold separately) to make a stereo RCA connection between the television and your soundbar speaker or AV receiver. The TV's analog audio output terminals will output 2ch audio from any of the television's source inputs.
ARC (Audio Return Channel) Function: The Audio Return Channel in HDMI 1.4 enables the TV, via a single HDMI cable, to send audio data "upstream" to your A/V receiver; increasing user flexibility and eliminating the need for any separate S/PDIF audio connection. This feature allows audio to be sent from the television to your A/V receiver through the same HDMI cable already being used to send audio/video to the television. This eliminates the need for extra cables connected to the TV. ARC allows audio from the TV tuner, Network connection, inserted USB device, HDMI inputs, or any analog connected device to be heard through your ARC compatible AV receiver via the television's HDMI ARC input. The audio from the TV's tuner, network connection, and USB port can pass as Dolby Digital or 2ch PCM. HDMI and analog connected devices will be output as 2ch PCM only.
Note: Both the television and the receiver must support ARC for this function to work properly. When connecting an A/V receiver that is compatible with Audio Return Channel (ARC), connect it to the TV's HDMI 1 input. If connecting a system that is incompatible Audio Return Channel (ARC), an additional audio connection via Digital Audio Out (Optical) is necessary.