SR 2020-D | 21
Cleaning the SR 2020-D
Cleaning the SR 2020-D
CAUTION
LIQUIDS CAN DAMAGE THE ELECTRONICS OF THE TRANSMITTER!
Liquids entering the housing of the device can cause a short-circuit and damage the elec-
tronics.
Keep all liquids away from the device.
Do not use any solvents or cleansing agents.
Before cleaning, disconnect the device from the mains.
Only use a soft and dry cloth to clean the device.
If a problem occurs
Problem
Possible cause
Possible remedy
No operation indication
on the transmitter
No mains connection
Check the mains unit and the con-
nection to the DC IN socket (see
Audio signal is distorted
Transmitter sensitivity is
adjusted too high
Change the sensitivity of the mi-
crophone input or line input (see
page 17)
Select the source of the input signal
Occasional drop outs in
the audio signal
Distance to the transmit-
ter is too great
Reduce the distance to the trans-
mitter
Interference of unknown
origin
Set the transmitter and receiver to a
different channel (see page 15)
Interference is being
received from a second
transmitter
Change the transmitters to different
channels (see page 15)
No radio waves on the
receiver display
Antenna is badly posi-
tioned
Improve the position of the transmit-
ting antenna: Mount the antenna to
the front of the rack or use a remote
antenna
No RF signal: transmitter
and receiver are not on
the same channel
Set the transmitter and receiver to
the same channel (see page 15)
No RF signal: transmis-
sion range is exceeded
Reduce the distance between re-
ceiver and transmitter
Improve the position of the transmit-
ting antenna
If a problem occurs that is not listed in the above table or if the problem cannot be solved
with the proposed solutions, please contact your local Sennheiser agent for assistance.
