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Problems and solutions · Cleaning
Technische Beschreibung unf Bedienungsanleitung
The subwoofer doesn't play
light up, reduce the subwoofer volume to "00" ,
remove the subwoofer cinch cable from the am-
plifier, turn the volume up carefully and touch the
cinch thermal resistor of the cinch cable (inside)
with your finger. If you can hear buzzing or crack-
ling, the defect is in the amplifier or its settings. If
the subwoofer remains silent in both cases, please
contact our service department.
The subwoofer buzzes
These buzzing noises may be produced by con-
nected appliances or faults in the power net-
work. Excessive buzzing usually has the following
causes:
1. The subwoofer is connected to a different
2. The aerial connected to the equipment or
3. A separately purchased mains filter, to
4. Occasionally, a multiple plug strip proves to
Cleaning
To make sure you are able to enjoy your product
from Lautsprecher Teufel for a long time, please
note the following tips:
Do not expose the casing to direct sunlight. Avo-
id extreme temperature differences and protect
14
· LT 2
If no power diodes
are lit in the screen,
please exchange the
fuse.
A faulty fuse should
only be changed for
one of the same type.
If the power diodes
power circuit from the rest of the equip-
ment. Ensure that all linked appliances are
connected to a single power circuit or plug.
TV has a different ground potential to the
plug. To test this, simply remove all aerial
cables from the wall socket. If the inter-
ference stops, you need a sheath current
filter (available for around Euro 5–10 from
electronics retailers). It is inserted bet-
ween the aerial socket and the TV or recei-
ver.
which all appliances must be connected,
may be useful in eliminating the interfe-
rence.
be responsible for creating buzzing noises.
To test this, disconnect the plug strip and
plug the subwoofer's mains plug directly into
a wall socket.
5. You can also try turning the mains plug
around and inserting it into the socket the
other way up, inasmuch as your mains plug/
socket allows this.
6. In order to better localise the cause of the
buzzing, check whether the subwoofer ope-
rates without buzzing on a power circuit in
another room. In addition, try disconnecting
the cinch connection from the subwoofer to
the receiver in order to exclude the influence
of connected components.
The subwoofer does not switch on automati-
cally when in "Auto ON" mode.
Some AV receivers issue the bass signals via the
subwoofer pre-amplifier output so quietly that
the subwoofer does not start automatically, as
the weak signal is not interpreted as a switch-on
request. To make sure the subwoofer switches on
and off correctly in auto mode, we recommend
turning the level control on the subwoofer only to
"55" and increasing the output level for the sub in
the receiver's speaker set-up – sometimes up to
the maximum (+10 dB or +12 dB). The subwoofer
should then work perfectly. If not, you can change
the setting to permanently "On" .
The subwoofer reacts to the remote control of
another appliance.
As there are no fundamental regulations on the
distribution of frequencies, each manufacturer
can work with the code of its choice. Unfortuna-
tely, the fact that there may be occasional cross-
overs in individual cases cannot be prevented.
This is, however, not a fault in the subwoofer. If
there are incompatibilities, you can try to cover
the subwoofer's receiving diode with opaque
adhesive tape. If, however, you have the freedom
to choose another location and can locate the
subwoofer outside the range of the receiver's re-
mote control (i.e. not right next to the receiver)
this may reduce this problem, as the reception
spectra may then no longer overlap.
your speakers from moisture. When cleaning the
speaker, only use a slightly damp or dry cloth.
Avoid using materials that contain alcohol or are
abrasive. Remove dust from the membrane very
carefully with a dry cloth.
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