Some settings lost upon power outage

[chrisc]

South Africa suffers from an extremely inept state-owned-enterprise to supply electricity to the entire country

Bad management has resulted in 2-hour rolling blackouts being implemented, almost every day of the week

I notice that when the power comes on, the setting "Stereo Out" turns itself off and the input defaults to Optical

Is there a way of embedding those settings, particularly the Stereo Out, from being disabled?

Thanks