User manual

25
EN
Troubleshooting in brief
Problem Solution
Nothing happens when
you try to start the unit.
• Connect the charger and check that charging
starts within 10 seconds.
Please note! If charging does not start within
10 seconds, disconnect the charger imme-
diately and contact your nearest dealer!
No sound can be heard in
the headphones when the
unit is switched on.
• Turn up the volume using the volume control
+ (9).
• Check that the internal microphone has been
selected as the signal source and that it works
by gently scraping on the microphones (1).
• Check that the headphone plug is securely
inserted in the headphone output.
• Connect the headphones to another sound
source (with a 3.5 mm headphone output) to
test whether the headphones are working.
No sound can be heard in
the headphones when the
unit is switched on and
External Sound is selected.
• Check that the sound source is correctly
connected to the unit if the stereo cable is
connected to the External Sound Source Input
(16).
A high-pitched noise is
heard in the headphones.
• Turn down the volume or increase the distance
between the microphone and headphones.
• Direct the microphone away from you.
For further information about the product in English, refer to the Appendix.