• Concept E 450 Digital
17
Troubleshooting
The following notes and further detailed information on our website should help you to rectify malfunctions. In
case you don’t succeed, please contact our hotline Phone 00800 - 200 300 40 (toll-free). Please also observe
the warranty notes.
Problem
Possible cause
Solution
The device doesn't emit
any sound.
The volume is set to “0”.
Increase the volume.(see “Setting the volume” on
page 15)
Input signal is too weak.
Increase the volume on the external player.
Incorrect input selected.
Select the correct input (see “Selecting an input”
on page 13).
The remote control does
not work.
No connection between the remote
control and Concept E 450 Digital.
Establish a connection (see “Pairing of the re-
mote control” on page 12).
Batteries are empty.
Insert new batteries (see “Changing the batter-
ies” on page 12).
Not all speakers are
active.
The output has been set to
2.1 CH.
Switch the output to 5.1 CH (see “Selecting an
output” on page 14).
Some speakers are too
quiet and some are too
loud.
The balance between the individ-
ual speakers is incorrect.
Adjust the volume (see “Setting the volume of
the individual speakers” on page 15) and (see
“Setup” on page 15).
The subwoofer hums.
The humming is caused by prob-
lems with the power supply.
Buy a line filter and connect it to the unit.
The humming is caused by a
multiple socket strip.
Use a different multiple socket strip or connect
the subwoofer directly to the wall socket. It may
also help to insert the mains plug in the socket
the other way around.
The audio source is not
played back.
An inappropriate digital output
format has been set on the
player.
Set the digital output format to “PCM” in the
setup menu of your player.
Playback is noisy.
Generally speaking, the
Concept E 450 Digital is a very
low-noise system. In most cases,
speaker systems with excellent
resolution in the high range area
expose the poor quality of a sig-
nal source (e.g. from MP3 files).
Make sure that the external player emits a clear
signal to the Concept E 450 Digital.
