Sennheiser 502011 - Manual (Page 28)

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Cleaning the Set 840 S system
To switch the acoustic signals on and off:
Cleaning the Set 840 S system
Cleaning the transmitter and the receiver
̈ Before cleaning, disconnect the transmitter from the
mains.
̈ Use only a slightly damp cloth to clean the devices.
̈ Press the channel search
button
6 on the receiver for
approx. 5 seconds.
You hear a short acoustic
signal.
Warning signals cannot be switched off.
CAUTION! Danger of electric shock and damage to the
device electronics!
Liquids entering the housing of the devices
can cause a short-circuit and damage the
electronics.
̈ Keep all liquids far away from the devices.
̈ Do not use any cleansing agents or
solvents.
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