19
Teufel
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Motiv 5
“The subwoofer is buzzing”
The Motiv 5 has a powerful transformer and a
generously proportioned power pack that deliv-
ers high-output performance. These components
can create a very quiet, unobtrusive buzzing
sound that can be heard a short distance from
the back of the subwoofer in quiet rooms if there
is no signal present. During operation this mini-
mal buzzing will disappear as it is masked by the
sound output.
On the other hand, if the buzzing can clearly be
heard from a distance of more than a metre and/
or can also be heard from the satellites, there is
possibly a defect, – assuming the subwoofer is
not touching other appliances. In some cases, it
could come from connection to other appliances,
through equalizing currents that are caused by
different casing potentials or similar. Please read
the following instructions for a solution to the
latter case:
1.
The subwoofer is connected to a different
power circuit from the rest of the equipment.
Ensure that all linked appliances (including
the PC if connected) are connected to a sin-
gle power circuit or plug.
2.
The aerial connected to the equipment or TV
has a different ground potential to the socket.
To test this, simply remove all aerial cables
from the wall socket. If the interference stops,
you need a sheath current filter (available from
electronics retailers). It is inserted between the
aerial socket and the TV or receiver.
3.
A separately purchased mains filter, to which all
appliances must be connected, may be useful in
eliminating the interference. Please negotiate a
right to return for the filter, in case it does not
lead to positive results.
4.
Occasionally, a multiple plug strip proves to
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 oper-
ates without buzzing on a power circuit in
another room (e.g. using an extension lead).
You should also try disconnecting the cinch
connection between the subwoofer and the
PC/DVD player/receiver in order to exclude
the influence of connected components.
7.
It can be useful to create an additional earth
by fixing a cable (e.g. speaker cable) to the
metal screw of the power amplifier and fixing
the other cable end e.g. to the heating pipe or
PC casing.
“There is no sound – neither from the
satellites nor from the subwoofer”
Please check to see if the LEDs on the front of
the subwoofer display
are illuminated; if not,
change the fuse, as it is
possible that the fuse in
the subwoofer has burnt
out – possibly as a result
of a power surge. The Mo-
tiv 5’s fuse compartment
is located underneath the
IEC power connector (see illustration of page 17,
item
). Use a small screwdriver to lever this out,
exchange both of the fuses and then return the
fuse switch to the fuse compartment. The sub-
woofer should now work - if it does not contact
other devices.
“The subwoofer doesn’t start in auto-standby
mode – or goes into standby too quickly”
Please check whether the level set in the speaker/
bass management for the feed device (DVD player,
sound card, receiver) is at a high value of around
+4 dB to maximum. The higher this value, the
earlier the subwoofer will start. Is the switch on
the back of the subwoofer in the middle setting
“auto”? During receiver operation: Is the sub-
woofer out-cinch cable from the receiver con-
nected to the front in R on the subwoofer?
Frequently asked questions
