Deep sleep is a power saving mode which turns off STB subsystems such as A/V, HDMI, front panels, HDD etc.

• The main purpose is to bring down the power consumption to about 15% of the actual usage.
• It can also be triggered in other scenarios such as thermal shutdown in case of the temperature is above threshold for certain period.
• When the STB goes in a normal power saving mode, it may be woken up for scheduled maintenance in a predetermined time.