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Cleaning the ASA 1
Cleaning the ASA 1
̈ Before cleaning, disconnect the ASA 1 from the mains (see
page 13).
̈ Only use a slightly damp cloth to clean the device.
If a problem occurs ...
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 partner for assistance.
CAUTION! Liquids can damage the electronics of the device!
Liquids entering the housing of the device can cause a short-
circuit and damage the electronics.
̈ Keep all liquids away from the device.
̈ Do not use any solvents or cleansing agents.
Problem Possible cause Possible solution
Receivers
cannot be
switched on
Receivers are not
powered
Check the connections
of the NT 1-1 mains unit
and/or check the BNC
sockets A1 to A4 ²
Disturbed RF
reception
Antennas are not
connected correctly
Check the antenna
connections (see page 12)
Connection cables are
defective
Replace the connection
cables
Excessive RF signal
attenuation due to too
long antenna cables
or incorrect type of
antenna cable
Only use the recommended
antenna cables (see
page 17)
or use shorter antenna
cables
or use AB-3 antenna
boosters from the matching
frequency range and
connect them the correct
way round