Sennheiser 140 Headphones User Manual


 
17
ENGLISH
Turning the acoustic signals (beeps) on and off
The acoustic signals of the headphones can be turned on or off as
follows:
y Turn the headphones on.
y Press the TUNE button for 5 seconds.
y Turn the headphones off.
y If the acoustic signals are turned on, the headphones produce a
sequence of beeps at turn-off. If no beeps are produced, the
acoustic signals are now turned off.
If problems occur...
y Check if all jack plugs are connected correctly.
y Make sure that the batteries are charged.
y Check if the batteries are inserted correctly and that the polarity
is correct.
y Check if the headphones and sound source are turned on and
that the volume of the headphnes and sound source is sufficient.
y Move closer to the transmitter.
y Choose a different channel on the transmitter.
y Press the TUNE button again.
y Reset the system:
Remove the rechargeable batteries from the headphones and –
at the same time – interrupt the power supply of the transmitter
for at least 30 seconds.
y Some electronic devices (e.g. televisions) can cause interference,
which can be eliminated by increasing the distance between the
transmitter and the interference source.
y Try to operate the transmitter with a different sound source.
Should the problem persist, please contact your authorized dealer
for assistance.
RS140_GB.fm Seite 17 Dienstag, 25. Oktober 2005 5:38 17