What would cause my TV's digital optical audio output to stop working?

Question

I have a brand new Sharp Aquos HDTV...I've been running the sound through my receiver, via the digital optical output on the TV. It was working fine (for about a week) up until a few days ago. I was watching TV one day and changed the channel. The sound went off. I tried to get it back on but I couldn't. So I had to turn the TV's volume up. The next day, when I turned it on again, I got sound through the receiver. And then, once again I changed the channel and it went off. And now it won't go on at all.

Anyone know what the h**l could have happened? It's not the receiver because I tried two different optical inputs and neither work (I know one of them works because I normally have it hooked up to my DVD player and that works fine still). So I have no idea what is going on or what it could be.

Answer 1

The good news is that your TV is still under warranty.

Can you get sound from  the speakers?

When you switch channels, is this an to analog channel or a digital channel?

It is quite possible that you can't get digital audio from an analog channel - but check the manual to be sure.

Did you try a different cable?