You sound so smart. Wish I understood what you mean. Not too technical at my house. I agree, Samsung has not been responsive. Right now my hdmi is the connection to my tv and cable box. I appreciate your input.
I had the problem of the sound cutting out after 60 seconds. Had owned the TV for one month and it worked fine. Changing the channel solved the audio problem. I swapped out the cable box, the cable to the wall, to no avail. Finally purchased a new HDMI cable to go from the cable box to the TV. The problem has gone away! I would try all the cables first. Had a similar problem in the past with a surround sound system and it turned out to be an HDMI cable.
I replaced all the cables, installed a new Direct TV receiver. I put a new TV with all the same cables and had no audio issues. For some reason, this model ( or maybe just my unit) does not work properly with Direct TV. It works fine with all other media sources.
I was isolating the problem to Network or TV audio or Optical audio. When I found the TV to be solid that told me the network was fine and TV speakers fine so it had to be the Optical. The optical is also dependent on the cable and the conneection on my receiver. I then connected the fiber optic cable to the alternate connection on the reciever (Video 5 on my front panel). Walah -within 5 minutes I knew the problem was my receiver's Video1 optical not the Samsung and not the cable. Samsung Dave's Fav once again
Having the same problem. Did troubleshooting w/samsung rep. to no avail. Bought TV in Dec. Time for a service call. Last Samsung I will buy. Best Buy recommended Samsung over the LG
I bought the samsung nu6900 50" at Best Buy in December. Immediately started with the same issue you are having. After 3 mins. there is a crackling sound, then all sound cuts out, and I have to switch to another channel then back. I immediately returned it and got a new one. The same thing is happening! So annoying. Came here looking for a solution, but may have to just return it and get a more reliable brand. Not even sure it's worth trying to contact Samsung. I'm sure they already know all about it.
We have contacted samsung on several occasions to no avail. We then contacted Best Buy who tried troubleshooting to no avail. We called Comcast, who suggested it might be our cable box. Haven't replaced as we would lose all dvr recordings and don't even know if it will resolve the problem. Has anyone else replaced their cable box?