This is my 2nd Sony HTCT790 Sound Bar w subwoofer as my first one went up in 19 days. I have had the unit for 2 months now and normally when I turn on my TV, it will turn on and the sound will come out of the soundbar and subwoofer.
Now it says PLEASE WAIT and the sound never comes on. I really need to fix this issue as my wife is getting really angry and so am I. I have it hooked up VIA ARC cable and everything was fine unti; yesterday.
Even when going to the menu screen (which takes forever to show up) it doesnt help me at all of solving this issue.
Since you can access your soundbar [Home] menu, you will need to update the firmware to the latest version (M34.R.2082). This firmware helps improve the Audio Output condition where the HDMI handshake fails and you get a No Sound condition with the "Please Wait" messaging.
To update your unit, press [Home] go to [Setup] in the upper right corner. Then run the [Software Update].