Lectrosonics Inc UM400 Manuale Utente
8
BATTERY INSTALLATION
The transmitter is powered by a standard alkaline or lithium 9 Volt battery. It is important that you use ONLY an
ALKALINE or LITHIUM battery for longest life. Standard zinc-carbon batteries marked “heavy-duty” or “long-
lasting” are not adequate. Ni-cad rechargeable batteries will only provide 1.5 hours of operation, or less, and will run
down quite abruptly. Alkaline batteries provide over 5 hours of operation. Lithium batteries can be used to provide up
to 16 hours. Care should be taken not to leave a fully discharged lithium battery in the transmitter, as swelling of the
battery can make it difficult to remove from the compartment. The battery status circuitry is designed for the voltage
drop over the life of alkaline batteries.
ALKALINE or LITHIUM battery for longest life. Standard zinc-carbon batteries marked “heavy-duty” or “long-
lasting” are not adequate. Ni-cad rechargeable batteries will only provide 1.5 hours of operation, or less, and will run
down quite abruptly. Alkaline batteries provide over 5 hours of operation. Lithium batteries can be used to provide up
to 16 hours. Care should be taken not to leave a fully discharged lithium battery in the transmitter, as swelling of the
battery can make it difficult to remove from the compartment. The battery status circuitry is designed for the voltage
drop over the life of alkaline batteries.
To open the battery compartment, press outward on the cover door in the direction of the arrow as shown in the
drawing. Only firm, sliding pressure is needed to open and close the battery door. Swing the door open and take note
of the polarity marked inside showing the location of the positive (+) and negative (-) terminals. You can see the large
and small contact holes inside the battery compartment with the door open.
drawing. Only firm, sliding pressure is needed to open and close the battery door. Swing the door open and take note
of the polarity marked inside showing the location of the positive (+) and negative (-) terminals. You can see the large
and small contact holes inside the battery compartment with the door open.
Insert the battery correctly and close the cover by pressing the door closed and across, reversing the opening proce-
dure illustrated above. If the battery is inserted incorrectly, the door will not close. Do not force the door closed.
dure illustrated above. If the battery is inserted incorrectly, the door will not close. Do not force the door closed.
Swing the
door open
door open
Press outward on the
battery door in this
direction
battery door in this
direction
OPERATING INSTRUCTIONS
1)
Install a fresh battery according to the instructions above.
2)
Insert the microphone plug into the input jack, aligning the pins; be sure that the connector locks in.
3)
Attach the antenna to the SMA connector on the top of the transmitter.
4)
Mute the sound system.
5)
Turn the transmitter power switch to the “ON” position.
6)
Position the microphone in the location you will use in actual operation.