Originally Posted by KeithK.
Found it. Thanks.
Could it be the source to your tv that is changing audio formats, ie cable/sat box or DVR? Does it do it when playing a bluray or DVD/CD? Just because 2 different units did the same thing doesn't implicate your TV. I haven't had the fade outs but some of my cable sources aren't broadcast in 5.1 so I only receive 2.1 but when I do watch a 5.1 source, it doesn't change. I don't see many people talking about the lose of sound that myared and I are experiencing but I do just use the receivers built into my tv, no set top box, so I do wonder if a cable/sat box may upscale everything to a constant resolution, which would mask the problem I have.
That was my experience with a Motorola DCX3400 STB. When set to "Native" or pass thru mode I would get lock ups on BDV when surfing channels with diff resolution. With STB set to a fixed output resolution the problem never happened. I loaded the 735 firmware a couple of nights ago (the box was set to notify availability of updates but didn't) and since then no lock up/muting on BDV with STB back on "native" setting. So far so good - they may have actually fixed something in my case at least.
For those losing wireless speaker output - I notice this problem on some TV channels and find if you play with either the "Sound Mode" or "Surround" setting (about four or five options on each of these) you can get the surround speakers to output. There is not a lot of guidance in the documentation as to what all of these options are for or where to set them. Right now my mode is set to "Auto" and surround to "AFD Multi"
Regarding shutdown question: my time in "Standby" flashing after shutdown (via TV HDMI control - it follows the TV on and off) is between 15 and 20 seconds. When the system used to lock up it would take close to 2 minutes to force this with BDV remote.