HW-MS550 is connected to QE75Q6FNAT and was working ok, connected by HDMI arc. Yesterday all power to house was turned off, on reinstating power I found that TV worked fine using its own speaker but the soundar was in D.IN source and will not move to any other source. Tried power on off etc , removed all cables to soundbar and held down various buttons on remote, held in + and - on side of soundbar , new HDMI cable...... nothing seems able to move soundbar to different source, just stuck on D.IN. Any help greatly appreciated!
nothing happens when pressing the source button just stays on D.IN.
Again when disconnecting the HDMI cable, repowering then reconnecting HDMI ARC port on both devices , nothing happens, just stays on D.IN in soundbar display