Auto shut down of unit

hello,

If this is happening all the time maybe you should think about the fact that it is not able to operate at this level all the time. I never turn mine up above 60 because the people at Yamaha told me this was the safe volume level. Try that.

The audio amps may be overheating and shutting down. a lot of electronic devices don't receive heat sink compound when being assembled and the heat doesn't transfer as it should. Try cooling the unit either in a plastic bag in the refrigerator or placing it in a cool airstream directed at the rear of the unit. If it's in a stack of other electronic devices, place something between the units to allow air to circulate. I hot-melt glue tinkertoy wheels to the bottom of the units myself to separate them.