25 Safety instructions
Never open electronic devices! Servicing and programming must only be
done by authorised personnel and is all the more important for current-
carrying units. If devices are opened by customers in breach of this
instruction, the warranty becomes null and void.
Keep the receiver away from central heating radiators and electric
heaters.
Use a damp cloth for cleaning the receiver. Do not use any cleansing
agents or solvents.
26 Error messages
The display of the receiver is also used by the integrated microprocessor to
display error messages for service purposes. If you see error messages such
as „EE_DEF" or „rS_232", there is a fault in the receiver unit which can only
be corrected by your local Sennheiser service department.
27 Error checklist
Error
Receiver does not work;
display panel dark
Receiver does not work;
display panel lit up
Sound distorted
Sound overlaid with
background noise
48
Possible cause
Check the camcorder's power supply;
if necessary, switch power supply on
separately
Frequency of transmitter does not agree
with receiving frequency
Squelch threshold adjusted too high
Transmission microphone over-
modulated; reduce AF level or
transmitter sensitivity
Transmitter not sensitive enough;
where appropriate, increase transmitter
sensitivity