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If problems occur...
Error checklist
If problems occur that are not listed in the above table or if the problems
cannot be solved with the proposed solutions, please contact your local
Sennheiser agent for assistance.
Pr oblem Possible cause Possible solution
No operation
indication
Battery is flat or inserted
incorrectly
Replace the battery or
check if it is inserted
correctl y
Transmitter
cannot be
switched off/
Sett ings c annot be
changed
Lock mode is activated Deactivate the lock mode
(see “Deactivating the
autolock function
temporarily ” on page 14)
Receiver:
No RF signal
Transmitter and receiver
are not on the same
channel
Set transmitter and recei-
ver to the same channel
Transmitter is out of range Check the squelch
threshold setting on the
receiver or reduce the
distance between receiving
antenna and transmitter
Audio signal has a
high level of
ba ck gro und no ise
Transmitter’s sensitivity is
set too high
See “Adjusting the micro-
phone sensitivity – ATTEN”
on page 24
Receiver’s output level is
set too low
Increase the line output
level
Audio signal is
distorted
Transmitter’s sensitivity is
set too low
See “Adjusting the micro-
phone sensitivity – ATTEN”
on page 24
Receiver’s output level is
set too high
Reduce the line output level