• Concept C 300 WL
11
Care an cleaning
Clean your
Concept C 300 WL
regularly with a soft,
slightly damp microfi bre cloth. Please be absolutely sure
to observe the following:
Danger
Risk of electric shock!
In contact with live parts water can lead to
electric shock or short circuit.
• Ensure that no water gets into the unit.
• Disconnect the device from the mains power supply
before cleaning.
Attention
Risk of damage!
Using the wrong cleaning materials may dam-
age the delicate surface of the case.
• If possible use only plain water with no cleaning prod-
ucts. In case of stubborn marks a mild soap solution
may be used.
• In no circumstances should caustic cleaning products,
white spirit, thinners, petrol or similar be used for clean-
ing.
Troubleshooting
The following advice should help you to solve problems. If this is not the case please contact our hotline (see page 3).
Take note of the warranty instructions.
Problem
Possible cause
Solution
The unit produces no
sound.
Wrong source selected.
Select the correct source (see page 10)
Volume is set to »0 «.
Increase the volume.
Fuse defective.
Replace the fuse: Dis-
connect the mains cord,
carefully take out the
fuse holder on the mains
connector jack
8
. Insert a
new fuse (3.15 A), close
the holder.
Subwoofer buzzes.
The buzzing is caused by problems with
the power supply.
Purchase a line fi lter and connect it to the
device.
The buzzing is caused by a multi-way
socket.
Use another multi-way socket or plug the
subwoofer directly into the wall socket. In the
case of two-pin plugs it may help to insert the
plug into the socket the other way up.
Playback is noisy.
The
Concept C 300 WL
is a very low-
noise system. What often happens is that
the speaker system which is excellent in the
treble range exposes the poor quality of a
signal source (e. g. from MP3 fi les).
Make sure that the signal being sent from the
source to the
Concept C 300 WL
is free
from faults.
No playback via USB
soundcard.
Pairing failed.
The USB soundcard must be connected with
the computer and the
Concept C 300 WL
must be activated. Now press the button
12
on the remote control and the small button on
the USB soundcard (see arrow) at the same
time for 10 seconds.
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