Sennheiser evolution wireless SR 300 IEM - Manual (Page 25)

Cleaning the transmitter
23
Cleaning the transmitter
̈
Before cleaning, disconnect the device from the mains.
̈
Use a slightly damp cloth to clean the device from time to time. Do not use any solvents
or cleansing agents.
If a problem occurs ...
CAUTION! Liquids can damage the electronics of the transmitter!
Liquids entering the housing of the device can cause a short-circuit and damage the
electronics.
̈
Keep all liquids away from the transmitter.
Problem Possible cause Possible solution
Transmitter cannot be
operated, “
Locked ”
appears on the display
panel
Lock mode is activated Deactivate the lock mode
(see page 18 and page 20).
No operation indication No mains connection Check the connections of the mains unit.
No RF signal at the
receiver Transmitter and receiver are not on the
same channel Set the transmitter and receiver to the same
channel. To do so, use the synchronization
function (see page 14).
If “ RF Mute ” additionally appears on the
transmitter display:
RF signal is deactivated
Activate the RF signal (see page 18).
Very weak RF signal at
the receiver Transmission range is exceeded Check the squelch threshold setting on the
receiver.
Reduce the distance between receiver and
transmitter.
Increase the transmission power (see page 20).
Receiver’s squelch threshold is adjusted
too high Reduce the squelch threshold
(see the instruction manual of the receiver).
Reposition the antennas.
RF signal available,
no audio signal at the
receiver No input signal at the transmitter Check the audio level on the transmitter display
(see page 7).
Very low input signal Check the audio level on the transmitter
display (see page 7), increase the level of
the input signal or adjust the input sensitivity
(see page 20).
Audio signal has a high
level of background noise Transmitter sensitivity is adjusted too
low Adjust the transmitter sensitivity correctly.