With soundbars easy to find now (even new) for <$100, the cost of repair might lead you to simply replace it. Sorry. At least this way you get another small warranty window though. With repair you would not.
I am having an issue with my Samsung Soundbar HM45C. For some reason it will not turn on whatsoever. It was working fine a few days ago, however, when I go to turn it on I have nothing. It's just over a year old so I don't want to have to buy a new one. Any ideas on what could be causing this or is it a lost cause?