I just started having an odd problem with the sound yesterday. I bought it in December 2012 from Amazon....no extended warranty.....I have the 55" version....its been an awesome TV and I have never had problems....and its moved 2x across the country....
Anyway, the sound is what i would call 'muted', without that loudness or stereo effect depending on how you would describe it. It makes listening with the built in speakers pretty useless unless your a kid.
I noticed it last night, i checked HDMI cables, reset the dishtv receiver, reset the tv to defaults, powered on/off a few times, disconnected power for a few minutes, no luck. While watching a show last night, the sound that I was used to came back and went out with a bit of odd noises that came with it when it went in an out.
I thought maybe one side was having an issue but when i adjust the balance, each side works.....it just doesn't sound 'right'.
The sound issue is also independent of the input, i get the same thing with a Bluray player attached so that rules out a cable or input issue.
What do y'all think? Anyone else had this?
Backup plan is to keep using the soundbar/woofer but the TV had great sound so we don't 'want' to always use the soundbar/woofer unless watching movies.
I'm having no issues with the picture, its as good as day one.