Reducing the standby power consumption (Deep standby function)
This unit can be placed into deep standby mode, in which its standby power consumption is lower than in normal standby mode. Perform the following steps to put this unit into deep standby mode.
The deep standby function switches on or off and the status LED blinks as indicated below.
When this unit is in deep standby mode, it cannot be turned on by performing streaming operations with a Bluetooth connection.
When this unit is in deep standby mode, the auto on control function of the optical and AUX inputs cannot turn on the unit. link