TechniSat VIOLA 3 Mode D'emploi page 76

radio. Then connect the power supply to the mains. The side LED
lights up blue when the battery is charging and the display shows
the charge status (only when switched off).
Ensure that the operating voltage of the power supply unit matches
the mains voltage before you insert it into the wall socket. A USB
port on a PC can also be used to supply power.
When the digital radio is switched on for the first time, "Digital
Radio" appears in the display. This will then be followed by a station
scan via DAB+.
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