TechniSat VIOLA 2 Instruction Manual page 15

If you detect a device defect, odour or smoke, considerable malfunctions, or
damage to the housing, switch off the device and inform the Service department.
With the power supply unit, the device may only be connected to a mains
voltage of 100V-240V~, 50/60 Hz.
Never try to operate the device with another voltage.
The power supply unit must not be connected until the installation has been
completed according to regulations.
Do not operate the device if the power supply unit is defective or if the device is
damaged in any other way.
When removing the power supply unit from the power outlet, pull on the plug,
not the cable.
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