Ok, I'll be honest, I'm a n00b when it comes to Home Theatres, so I might be missing something rather simple but right now I have a idea where to go further.

I've got a Sharp Aquos LC-42D72U LCD and a Yamaha HTR-5920, and I'm trying to connect the TV to the Yamaha via a TOSLink Cable. I can't seem to get any audio to come out of the Speakers reguardless of what settings I use. I've been mainly focusing on using the DTV/CBL preset since that's what the Yamaha says the Digital Cable connects to, but i've tried on all the inputs, and tried every setting I can think of on the TV as well to ensure its outputting to the Optical outlet. According to the Sharp Manual it should be outputing reguardless to the Audio output being set to Fixed or Variable, only difference being that on Fixed the TV's Speakers are also enabled (I'd like to disable them).

Now today I while I was trying to search Google for more information I was sitting there, reading and suddenly I got a new bits of sound. But only for about 30 seconds total and it was cutting in and out. On the display of the Yamaha you could tell it kept detecting the audio signal and then would loose it almost right away....and I haven't been able to duplicate this since.

Does anyone have any ideas or experience that might help me in this situation. The Fiber Cable is brand new (RocketFish from Futureshop) and both the TV and Reciecver are less than 3 months old. Perviously I had the audio going over a normal Left-Right RCA Cable set but I wanted to get proper surround sound going so here I am.

Thanks in advance!

As dumb as this may sound, did you pull the little plastic tips off both ends of the cable before plugging it in??

Please put your location and service provider (if applicable) into your UserCP profile (location). It'll often help us help you.

Are you using the TV's internal tuner?
Are you using QAM, ATSC, NTSC?
Most receivers require you to assign the digital inputs, have you done that procedure?
Do you have a DVD player or another device that you could try the cable on?

Things to check first (http://www.digitalhome.ca/forum/showthread.php?t=19694)

I have removed the Plastic Protectors from the Cable. So far I haven't had any luck with anything I've tried and my DVD Player only has COAX Digital out so I can't test Fiber from that. The TV only has TOSLink Digital, otherwise I'd be satisfied using the COAX Connection as I know that provides 5.1 Sound and has proven to work on my reciever.

I asked several questions in post 3, which you didn't answer. If you're using Shaw's STB for the source of your audio signals, then you should connect the STB directly to the AVR via a digital audio connector, not go "through" the TV.

See also: What's available in DD5.1 (http://www.digitalhome.ca/forum/showthread.php?t=17870) and More information. (http://www.digitalhome.ca/forum/showthread.php?t=57741)