Power Supply; Operation - IMG STAGE LINE TXS-140SET Instruction Manual

4 Power Supply

4.1 Microphone
1) Screw off the screw cap (11) at the lower end of the
microphone.
2) Insert a 9 V battery with the positive and negative
connections as printed in the battery compartment
(12). Tightly screw the screw cap (11) again.
3) With a new battery the microphone can be oper-
ated for approx. 6 – 8 hours.
4) If not used for a longer period of time (e. g. for more
than one week), the battery should be taken out of
microphone. Thus, the microphone will not be
damaged in case the battery should leak.
Dead batteries or defective rechargeable bat-
teries do not belong in the household rub-
bish; always take them to a special waste dis-
posal (e. g. collecting container at your
retailer).
4.2 Receiver
1) Connect the plug-in power supply (included in the
delivery) to the power supply jack SUPPLY 12 V
(5).
2) Connect the plug-in power supply to a mains socket
(230 V~/50 Hz).
3) The receiver can also be supplied with any other
12 V DC power source of at least 300 mA current
rating, e. g. car battery or other power supply. For
the connection a DC power plug 5.0/2.1 mm (out-
side/inside diameters) is required. The positive
pole must be at the centre pin.

5 Operation

1) For connecting the subsequent device (e. g. ampli-
fier, mixer) the receiver has a balanced output via
the XLR connection (10) and an unbalanced, con-
trollable output via the 6.3 mm jack (9). If the sub-
sequent device has a balanced input, the balanced
output should be used for obtaining an optimum
signal transfer.
Connect the output BAL. MIC (10) or AUX (9) to
a microphone input of the subsequent device. Do
not switch on the subsequent device or slide the
fader of the respective mixer upward before the
entire microphone system is switched on.
IMPORTANT!
Never connect the audio output to a phantom-
powered microphone input, otherwise the receiver
will be damaged. If required, prior to connection
always switch off the phantom power on the corre-
sponding unit!
8
2) Place the antennas (6) in a vertical position and
extract them to their full extent. Turn the antennas
outwards approx. 45° away from each other.
3) Switch on the receiver with the POWER switch (4).
The POWER LED (1) lights up.
4) Adjust the muting threshold of the interference sup-
pression. Leave the microphone switched off. None
of the reception LEDs A or B (2) must light up. If one
of them lights up, there are reception interferences.
In order to suppress these interferences, use a
small screwdriver to turn the control SQUELCH (7)
counter-clockwise until neither LED A or B lights up.
Do not turn the control any further, otherwise the
microphone signal may be suppressed as well.
5) Switch on the microphone with the switch (13). The
power LED (14) lights up. If it remains dark, a new
battery must be inserted. For audio transmission
slide the switch (13) to the uppermost position. The
microphone is mute in the medium position, i. e. the
transmitter operates but the audio signal is still
mute.
6) When the microphone is switched on (mute or ON)
one of the reception LEDs A or B (2) on the receiver
must light. If the LEDs remain dark, the reception is
too weak.
a Is the microphone battery exhausted?
b Is the distance microphone – receiver too great
(max. approx. 30 m)?
c Is the reception disturbed e. g. by any objects in
the transmission area?
d Can the reception be improved by turning the
antennas?
e Is a reception possible when turning the control
SQUELCH (7) clockwise?
7) Switch on the subsequent unit or slide the fader of
the respective mixer upwards. If the output AUX (9)
is used, adjust the output volume with the control
AUX VOLUME (8) to the input of the subsequent
unit.
8) When the microphone system is overloaded be-
cause the volume at the microphone is too high, the
red indicator AF PEAK (3) lights up [independent of
the volume control AUX VOLUME (8)]. The volume
of the sound source has to be reduced or the
distance between microphone and sound source
has to be increased.
If the volume at the microphone is low, a poor
S/N ratio is obtained. The volume of the sound
source has to be increased or the distance between
microphone and sound source has to be reduced.
9) After operation the microphone must be switched
off as well, otherwise the batteries will be ex-
hausted the next time the system is used. Dis-
connect the plug-in power supply if the microphone
system is not used for a longer period of time, since
the system has a low power consumption even
when the receiver is switched off.