Transmitter for
Audio Transmission System
These operating instructions are intended for users
without any specific technical knowledge . Please read
these operating instructions carefully prior to oper-
ation and keep them for later reference . All operating
elements and connections described can be found on
page 2 .
1 Overview
1 POWER switch
2 Volume control MIC for the microphone at the input
MIC IN [(17) or (19)]
3 Button TX (with LED ON) to switch the microphone
signal at the volume adjusted with the control MIC
(2) to the transmitter section and the output LINE
OUT (15)
4 Volume control AUX for the unit at the input LINE
IN (16)
5 Button TX (with LED ON) to switch the signal of the
unit at the input LINE IN (16) at the volume ad justed
with the control AUX (4) to the transmitter section
and the output LINE OUT (15)
6 Display: will indicate the channel adjusted during
operation
7 Transmission LED TX: will light up when the trans-
mitter section is switched on
8 Level LEDs for the input signal at the transmitter
section: yellow = minimum level, red = maximum
level (also see chapter 6, item 6)
9 Button SET to call the adjusting mode for the chan-
nel and to confirm the channel selection
10 Arrow buttons
– to select the channel in the adjusting mode:
= up ward selection of channel,
= downward selection of channel
– to briefly switch over the display (6) to indicate the
radio frequency: keep one of the buttons pressed
11 On-off switch and volume control for the trans-
mitter section
12 Volume control for headphones connected to the
jack
(13)
13 Headphone connection (6 .3 mm jack) to monitor
the input signals of the jacks LINE IN (16)
14 TNC jack to connect the antenna
15 Mono output LINE OUT with line signal level (RCA
jacks) to connect, for example, a sound recorder
or amplifier; at this output, the signal of the audio
source selected with the corresponding button TX
[(3) or (5)] is available
16 Stereo input LINE IN (RCA jacks) to connect a stereo
audio source with line output level, e . g . CD player,
tape deck
17 Balanced microphone input (XLR jack)
18 On-off switch of the +5 V T-power for the unbal-
anced microphone input (19)
OFF: T-power deactivated
when a dynamic microphone is connected
ON: T-power activated
when an electret microphone requiring a +5 V
supply voltage is connected
Observe the "Caution" note in chapter 5 .
19 Unbalanced microphone input (6 .3 mm jack)
20 Jack POWER OUT for power supply of a second
TXA-800ST transmitter: connect the jack to the jack
POWER IN of the second transmitter
21 Jack POWER IN for power supply of the transmitter:
connect the power supply unit to the jack and to a
mains socket (230 V/ 50 Hz)
2 Safety Notes
The units (transmitter and power supply unit) corre-
spond to all relevant directives of the EU and are there-
fore marked with
.
WARNING
The power supply unit uses dangerous
mains voltage . Leave servicing to skilled
personnel only . Inexpert handling may
result in electric shock .
•
The units are suitable for indoor use only . Protect
them against dripping water, splash water and high
air humidity . The admissible ambient temperature
range is 0 – 40 °C .
•
Immediately disconnect the power supply unit from
the mains
1 . if the transmitter or the power supply unit is visibly
damaged,
2 . if a defect might have occurred after the unit was
dropped or suffered a similar accident,
3 . if malfunctions occur .
In any case the unit must be repaired by skilled per-
sonnel .
•
For cleaning only use a dry soft cloth; never use water
or chemicals .
•
No guarantee claims for the units and no liability
for any resulting personal damage or material dam-
age will be accepted if the units are used for other
purposes than originally intended, if they are not
correctly connected or operated, or if they are not
repaired in an expert way .
If the units are to be put out of operation
definitively, take them to a local recycling
plant for a disposal which is not harmful to
the environment
7