The device also has the ability to automatically enter “Deep Standby” whenever the wired or wireless network connection is removed for more than 60 minutes in "Quick Start Mode".
The front panel LED will turn off during Deep Standby. To “wake” a DHT-S516H from Deep Standby,

Press the volume or mute buttons.

Input audio signal to Optical/Coaxial.

CEC (Consumer Electronics Control) command over HDMI/ARC

Press the button on your remote controller which you taught DHT-S516H by “Controlling your DHT-S516H”.

NOTE

It may take around 40 seconds to wake up your DHT-S516H from the deep standby.

You also push the mute button for 3 seconds, the device enters the Deep Standby.

Using your DHT-S516H for music

AirPlay function

Making speaker adjustments