TechniSat VIOLA 2 Instruction Manual page 63

Symptom
The device cannot be operated.
Display backlight flickers.
If the malfunction has not been resolved, even after performing the checks described,
please contact the Technical Hotline.
Possible cause/remedy
Disconnect the device from the mains supply/
briefly remove the batteries and reconnect the
device to the mains.
Battery voltage too low. Replace the batteries or
connect the power supply unit.
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