LG documentation states: When you use SIMPLINK function, you have to connect to the OPTICAL IN 1 jack to enjoy TV
sound to your speaker system.
Basically you need to have the Audio go from TV to receiver and setup receiver to that Input to output surround sound to all speakers.
If you have a cable box or satellite receiver, hook that output into the receivers input and that should work.
My setup is DirectTv HDMI output goes into the LG Home Theater HDMI Input 1, and LG goes HDMI output into the TV HDMI input 1.
so to watch DirectTV, I switch LG Home theater to HDMI Input 1. and TV is on HDMI input 1 (to view LG HDMI output from DriectTV, Blu-Ray, Vudu, etc.)
This Vizio model has no headphone jack and is not wireless. There ia a PC audio input jack, and a digital-optical output jack, only.
I would assume that there is an audio processor chip on the main board from some other comments I have seen. I also just tried to get sound out of the TV using the A/V input jacks and that doesn't produce anything either. So, if the audio processor chip is bad, then I am wondering if the digital-optical out will produce anything either. So, if the optical out works, maybe buying a good sound bar would be a better fix than actually fixing the audio problem.
Sorry for the above two comments...the email I received for my post linked me to the wrong spot before I knew what was happening.
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Register and download the manual for free at retrevo.com
http://www.retrevo.com/support/LG-LHB335-Home-Theater-Systems-manual/id/23637ci371/t/2/
Any external source will require a digital multichannel signal IN to the LG for surround.
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