5 Operation
5.1 Power supply / Recharging the battery
1) To operate the active speaker system via a
mains socket and / or to recharge the internal
battery, connect the power supply unit provided
to the jack DC IN (12) and to a mains socket
(230 V~ / 50 Hz) via the mains cable provided.
When the power supply unit is connected to the
mains socket, the green power LED lights up on
the power supply unit .
2) As soon as the power supply unit supplies
power to the active speaker system, the battery
is recharged: The green segments of the indica-
tion CHARGE DISPLAY (6) start flashing. For
charging, it is not necessary to switch on the unit
with the switch and volume control MAIN VOL
(10), however, the unit can be used as usual
during the charging process.
3) When the battery has been fully charged, the
green segments of the indication CHARGE
DISPLAY light continuously. At maximum vol-
ume, a mains-independent operating time of
2 – 3 hours is possible. A lower volume will
increase the operating time.
4) In case of battery operation, the indication
CHARGE DISPLAY shows the state of charge
of the battery. If only the red segment of the indi-
cation lights up, the battery is almost discharged
and should be recharged.
5) After operating or after recharging the battery,
disconnect the power supply unit from the
mains socket to prevent unnecessary power
consumption.
To prevent damage to the battery caused by deep
discharge and to ensure a long life of the battery,
please note:
– Fully recharge the battery before initial operation.
– Recharge a battery that has been almost or com-
pletely discharged as soon as possible.
– If the active speaker system is not in use for a
longer period of time, fully recharge the battery
every 2 – 3 weeks.
Changing the battery
The charger is ideally matched to the integrated
battery type. To prevent damage to the unit and to
the battery, always replace a defective battery by
one of the same type!
1) Disconnect the unit from the mains (disconnect
the mains plug of the power supply unit from the
socket).
2) To open the battery compartment (2), push
down the latch of the cover (covered with hook
and loop fastener) to open the cover.
3) Unscrew the metal support in front of the bat-
tery, carefully remove the defective battery from
the compartment and disconnect the cables
from the contacts.
4) Connect the new battery: Connect the red cable
to the positive pole of the battery; connect the
black cable to the negative pole.
5) Insert the battery into the compartment, screw
on the support and then close the cover.
5.2 Connecting a microphone
and audio units
Always switch off the active speaker system before
connecting!
1) In addition to the wireless microphone, a cable
microphone may be used. Connect the micro-
phone to the jack MIC IN (8).
2) Connect audio units with a line output (e. g. CD
player, cassette recorder, radio) to the jack AUX
IN (9).
Only connect a cable microphone and an
audio unit at the same time if the output level on
the audio unit is adjustable; otherwise you will
not be able to change the volume ratio between
the microphone and the audio unit.
3) The jack MIX OUT (11) allows connection e. g.
of a recorder or another active speaker system
for PA applications. The position of the control
MAIN VOL (10) has no effect on the output level.
Hint: No additional cabling is required when setting up
several active speaker systems TXA-140USB to repro-
duce the signal of
a single wireless microphone.
6 Operation
1) Use the control MAIN VOL (10) to switch the
speaker system on and off and to adjust its
overall volume. To switch on the speaker sys-
tem, turn up the control from the position OFF.
When the unit is switched on, the red segment
of the indication CHARGE DISPLAY (6) lights
up. The green segments of the indication
a start flashing (battery is being charged) or
light continuously (battery has been fully
CAUTION Never adjust the active speaker sys-
tem to a very high volume. Perma-
nent high volumes may damage your
hearing! Your ear will get accus-
tomed to high volumes which do not
seem to be that high after some time.
Therefore, do not further increase a
high volume after getting used to it.
11
GB
