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If a problem occurs...
If a problem occurs...
In the following table, the term “transmitter” also implies “bodypack transmitter”
and “wireless microphone”.
If a problem occurs that is not listed in the above table or if the problem cannot be
solved with the proposed solutions, contact your local Sennheiser agent for
assistance.
Problem Possible cause Possible solution
No operation indica-
tion on the transmitter
Batteries are flat or accupack is
flat
Replace the batteries or recharge
the accupack (see page 30)
No radio waves on the
receiver display
No RF signal, transmitter and re-
ceiver are not on the same chan-
nel
Set transmitter and receiver to
the same channel (see page 32)
No RF signal, transmitter is out
of range
Reduce the distance between
the receiver and transmitter
Transmitter is in energy-saving
mode (see page 14)
Check the signal source
RF signal available, no
audio signal, the red
LED LOW BATT/
MUTE
¶ is lit on trans-
mitter
Transmitter is muted (MUTE)
Deactivate the muting function
(see page 35)
Audio signal is distort-
ed
Transmitter sensitivity is adjust-
ed too high
Change the sensitivity of the mi-
crophone input (see page 37) or
line input (see page 36)
Operating time of the
transmitter is drasti-
cally reduced
Normal ageing or damage of re-
chargeable batteries
Replace the BA 2015 accupack
Operating time of the
receivers is drastically
reduced
Normal ageing or damage of re-
chargeable batteries
Have the rechargeable batteries
replaced by Sennheiser Service
Occasional drop-outs in
the audio signal
Distance to the transmitter is too
great
Reduce the distance to the
transmitter
Interference is being received
from an external source
Change the system to a different
channel
Interference is being received
from a second transmitter
Change the transmitters to dif-
ferent channels