• Columa 300 R
19
Troubleshooting
The following instructions should help you to solve problems. If this doesn’t work, please contact our hotline (see page 3).
Mind the warranty instructions.
Problem
Possible cause
Solution
The subwoofer doesn’t
work, the power LED
14
or
the display panel are not
illuminated.
The subwoofer is switched off or doesn’t
have any power.
Turn on the switch
11
(“On I”).
Check the mains cord and socket.
Fuse is defective.
Replace the fuse: Discon-
nect the mains cord.
Carefully pull out the fuse
holder
12
on the mains
connection jack
10
.
Push out the old fuse to
the bottom. If necessary,
insert a new fuse (5 A
delay-action), close the
holder.
The subwoofer is not work-
ing, but the display panel
is on.
The volume has been set too low.
Increase the volume with the button
21
and/
or
29
“+”.
The subwoofer hums.
The subwoofer is connected to another
circuit than the rest of the system.
Connect the subwoofer and source device to
the same electric circuit.
The buzzing is caused by problems with
the power supply.
Buy a line fi lter and connect both devices to
it.
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 around.
Playback is noisy.
Generally speaking, the system has a very
low noise level. In the high range area,
very good-quality high-resolution speaker
systems can expose the poor quality of a
signal source (e.g. from MP3 fi les).
Ensure that the source is sending a clean
signal.
The sound seems dull.
Satellite has been connected with incorrect
polarity.
Make sure the speaker cables of all satellites
are connected properly.
To conduct a test, turn the switch 1 “Phase”
on and off. Select the setting with the best
sound.
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