16 • Concept E 450 Digital
Cleaning & Maintenance
Clean the speakers regularly with a soft, damp mi-
crofibre cloth. Please be absolutely sure to observe
the following notes in the process:
CA UTION
In contact with live parts, water can lead to
electric shock or short circuit.
– Make sure that no liquids penetrate the
unit.
– Disconnect the mains plug before clean-
ing.
NOTICE
External influences may damage or destroy
the device.
– If the device is to be left unattended for
a prolonged period of time (e.g. during a
vacation) or if a thunderstorm is forecast,
pull the mains plug out of the socket. Oth-
erwise, sudden overvoltage could cause
the device to become defective.
– In the event of prolonged absence, remove
the batteries from the remote control.
Leaked batteries may damage the remote
control.
– If possible, only use plain water without
any additives. In case of stubborn marks,
a mild soap solution may be used.
– Do not use caustic cleaning products,
white spirit, thinners, petrol or similar
under any circumstances. Such cleaning
agents may damage the delicate surface
of the housing.
Batteries and storage batteries
Batteries and storage batteries do not
belong in the household waste!
Every consumer is required by law to bring all
batteries and storage batteries, regardless whether
they contain harmful substances*) or not, to a collec-
tion point run by the communal authority or borough
or to a retailer, so that they can be disposed of in an
environmentally friendly manner.
Please only turn in batteries and storage batteries
which are empty!
*) labelled with: Cd = cadmium, Hg = mercury, Pb =
lead
Disposal of the unit
Used units must not be disposed of with
household waste!
If the device is no longer operational, every
consumer is required by law to dispose of
old devices separately from household waste, e.g.
at a collection point run by the communal authority/
boroughs. This ensures that old devices are recycled
in a professional manner and also rules out negative
consequences for the environment.
For this reason, electrical equipment is labelled with
the displayed symbol.
Environmental protection
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