Sonoro QUBO SO-220, Operating Manual

Page: 92 / 148

© sonoro audio GmbH 2018
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17. Troubleshooting
Malfunctions may occur with any electrical equipment. This is not necessarily due
to a device defect. As such, you should check the following table to see if you can
eliminate the problem yourself.
Malfunction Possible cause Elimination
Device does not turn
on
AC adapter with universal
adapter is not properly
connected
Properly connect the AC adapter with
universal adapter (Please see chapter
7.3 ‘Connecting the power supply’ on
page 62).
No sound Volume is set to minimum Increase the volume (Please see
chapter 9.1 ‘Setting the volume’ on
page 76).
Sound is turned off Switch on the sound (Please see
chapter 9.2 ‘Muting the audio
playback’ on page 76).
Headphones are connected Pull the headphones out of the jack.
Another mode is set Set the correct mode (Please see
chapter 9.3 ‘Selecting a play- back
mode’ on page 77).
CD playback does not
start
CD format is not compatible Insert a different CD into the CD slot.
CD is dirty Clean the CD.
CD is damaged Insert a different CD into the CD slot.
CD is upside down in the
disc tray
Eject the CD and insert it correctly
into the CD slot.
USB playback does
not start
USB device is not plugged
in
Insert the USB device into the port
on the back of the device (Please see
chapter 14 ‘USB playback’
on page 86).
USB device is not
compatible
Check whether your USB device is
compatible with the radio.
USB device does not contain
readable audio files
Check the files on your USB device.
No Bluetooth
connection, or Blue-
tooth connection
interrupted
Malfunctions due to other
radio transmitters or devices
Increase the distance between the
radio and your television.
Software not up to date Make sure that your external Blue-
tooth device has the latest software
version installed
Device not responding Error in the device Switch the device off and on again.
Poor FM/DAB
reception
FM/DAB antenna is not
properly aligned
Change the position of the FM/DAB
antenna.
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