Sennheiser WIRELESS DIGITAL Instruction Manual page 11

Inserting and changing the battery
Slide the cover of the battery compartment in the direction of
the embossed arrow until it clicks audibly.
Open the cover.
Insert the 9 V PP3 battery (IEC 6 LR 61). Please observe
correct polarity when inserting the battery.
Close the battery compartment.
To remove the battery, push the small red lever in the battery
compartment towards the bottom side of the transmitter.
Note:
We recommend powering the transmitter by a standard PP3
alkaline battery. If powered by a rechargeable 9 V battery, the
operating time will be drastically reduced.
Connecting the antenna
Screw the antenna onto the antenna socket
Connecting the microphone/line cable
Electret powering ("plug-in" power) is available at the AF input for powering
the microphone.
Connect the 1/8" jack plug from the microphone/line cable to the AF
input .
Lock the jack plug by screwing down the locking ring.
Switching the transmitter on/off
Slide back the cover plate.
Set the ON/OFF switch
Battery life indication
The red LED provides information on the battery life. LED
The battery is going flat! You should replace the battery within the next 20
minutes (value depending on battery type).
Attachment of the transmitter to clothing
The belt pack transmitter is best attached to e.g. the belt with the
supplied clip.
The clip is detachable so that you can also attach the transmitter with
the antenna pointing downwards. To do so, withdraw the clip from
its fixing points and attach it the other way round.
(M3 connection).
to ON. The green LED lights up.
lit up:
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