LD U 500 CS4 User manual

USER´S MANUAL
BEDIENUNGSANLEITUNG
MANUEL D`UTILISATION
MANUAL DE USUARIO
INSTRUKCJA OBSŁUGI
MANUALE D‘ USO
U 500 CS4
4 CHANNEL WIRELESS CONFERENCE SYSTEM
LDU500CS4 SERIES

CONTENTS / INHALTSVERZEICHNIS / CONTENU / CONTENIDO / TREŚĆ / CONTENUTO
ENGLISH
PREVENTIVE MEASURES 3-4
INTRODUCTION 4-5
CONNECTIONS, CONTROLS AND INDICATORS 5
RECEIVER 5-7
MICROPHONE STATION 7
OPERATION 8-14
ERROR DETECTION 14
TECHNICAL SPECIFICATIONS 15-16
MANUFACTURER INFORMATION 16
DEUTSCH
SICHERHEITSHINWEISE 17-18
EINFÜHRUNG 18-19
ANSCHLÜSSE, BEDIENEN- UND ANZEIGEELEMENTE 19
EMPFÄNGER 19-20
SPRECHSTELLE 21
BEDIENUNG 22-28
FEHLERSUCHE 28
TECHNISCHE DATEN 29-30
HERSTELLERERKLÄRUNGEN 30
FRANCAIS
MESURES PRÉVENTIVES 31-32
INTRODUCTION 32-33
CONNECTEURS, CONTRÔLES ET INDICATEURS 33
RÉCEPTEUR HF 33-34
PUPITRE 35
UTILISATION 36-42
EN CAS DE PROBLÈME 42
CARACTÉRISTIQUES TECHNIQUES 43-44
DÉCLARATIONS FABRICANT 44
ESPAÑOL
MEDIDAS DE SEGURIDAD 45-46
INTRODUCCIÓN 46-47
CONEXIONES, CONTROLES E INDICADORES 47
RECEPTOR 47-48
UNIDAD DE CONFERENCIA 49
OPERACIÓN 50-56
SOLUCIÓN DE PROBLEMAS 56
CARACTERÍSTICAS TÉCNICAS 57-58
DECLARACIÓN DEL FABRICANTE 58
POLSKI
ŚRODKI OSTROŻNOŚCI 59-60
WPROWADZENIE 60-61
ZŁĄCZA, ELEMENTY OBSŁUGI I WSKAŹNIKI 61
ODBIORNIK 61-62
TERMINAL 63
OBSŁUGA 64-70
ROZWIĄZYWANIE PROBLEMÓW 70
DANE TECHNICZNE 71-72
DEKLARACJE PRODUCENTA 72
ITALIANO
MISURE PRECAUZIONALI 73-74
INTRODUZIONE 74-75
CONNESSIONI, ELEMENTI DI COMANDO E DI VISUALIZZAZIONE 75
RICEVITORE 75-76
POSTAZIONE MICROFONICA 77
UTILIZZO 78-84
RICERCA ERRORI 84
DATI TECNICI 85-86
DICHIARAZIONI DEL FABBRICANTE 86

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YOU‘VE MADE THE RIGHT CHOICE!
We have designed this product to operate reliably over many years. LD Systems stands for this with its name and many years of experience
as a manufacturer of high-quality audio products. Please read this User‘s Manual carefully, so that you can begin making optimum use of
your LD Systems product quickly.
You can find more information about LD-SYSTEMS at our Internet site WWW.LD-SYSTEMS.COM
PREVENTIVE MEASURES
1. Please read these instructions carefully.
2. Keep all information and instructions in a safe place.
3. Follow the instructions.
4. Observe all safety warnings. Never remove safety warnings or other information from the equipment.
5. Use the equipment only in the intended manner and for the intended purpose.
6. Use only sufficiently stable and compatible stands and/or mounts (for fixed installations). Make certain that wall mounts are properly installed and
secured. Make certain that the equipment is installed securely and cannot fall down.
7. During installation, observ e the applicable safety regulations for your country.
8. Never install and operate the equipment near radiators, heat registers, ovens or other sources of heat. Make certain that the equipment is always
installed so that is cooled sufficiently and cannot overheat.
9. Never place sources of ignition, e.g., burning candles, on the equipment.
10. Ventilation slits must not be blocked.
11. Do not use this equipment in the immediate vicinity of water (does not apply to special outdoor equipment - in this case, observe the
special instructions noted below. Do not expose this equipment to flammable materials, fluids or gases. Avoid direct sunlight!
12. Make certain that dripping or splashed water cannot enter the equipment. Do not place containers filled with liquids, such as vases or
drinking vessels, on the equipment.
13. Make certain that objects cannot fall into the device.
14. Use this equipment only with the accessories recommended and intended by the manufacturer.
15. Do not open or modify this equipment.
16. After connecting the equipment, check all cables in order to prevent damage or accidents, e.g., due to tripping hazards.
17. During transport, make certain that the equipment cannot fall down and possibly cause property damage and personal injuries.
18. If your equipment is no longer functioning properly, if fluids or objects have gotten inside the equipment or if it has been damaged in anot
her way, switch it off immediately and unplug it from the mains outlet (if it is a powered device). This equipment may only be repaired by
authorized, qualified personnel.
19. Clean the equipment using a dry cloth.
20. Comply with all applicable disposal laws in your country. During disposal of packaging, please separate plastic and paper/cardboard.
21. Plastic bags must be kept out of reach of children.
FOR EQUIPMENT THAT CONNECTS TO THE POWER MAINS
22. CAUTION: If the power cord of the device is equipped with an earthing contact, then it must be connected to an outlet with a protective
ground. Never deactivate the protective ground of a power cord.
23. If the equipment has been exposed to strong fluctuations in temperature (for example, after transport), do not switch it on immediately.
Moisture and condensation could damage the equipment. Do not switch on the equipment until it has reached room temperature.
24. Before connecting the equipment to the power outlet, first verify that the mains voltage and frequency match the values specified on the
equipment. If the equipment has a voltage selection switch, connect the equipment to the power outlet only if the equipment values and the
mains power values match. If the included power cord or power adapter does not fit in your wall outlet, contact your electrician.
25. Do not step on the power cord. Make certain that the power cable does not become kinked, especially at the mains outlet and/or power
adapter and the equipment connector.
26. When connecting the equipment, make certain that the power cord or power adapter is always freely accessible. Always disconnect the
equipment from the power supply if the equipment is not in use or if you want to clean the equipment. Always unplug the power cord and
power adapter from the power outlet at the plug or adapter and not by pulling on the cord. Never touch the power cord and power adapter
with wet hands.
27. Whenever possible, avoid switching the equipment on and off in quick succession because otherwise this can shorten the useful life of
the equipment.
28. IMPORTANT INFORMATION: Replace fuses only with fuses of the same type and rating. If a fuse blows repeatedly, please contact an
authorised service centre.
29. To disconnect the equipment from the power mains completely, unplug the power cord or power adapter from the power outlet.
30. If your device is equipped with a Volex power connector, the mating Volex equipment connector must be unlocked before it can be re-
moved. However, this also means that the equipment can slide and fall down if the power cable is pulled, which can lead to personal injuries
and/or other damage. For this reason, always be careful when laying cables.
31. Unplug the power cord and power adapter from the power outlet if there is a risk of a lightning strike or before extended periods of disuse.

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CAUTION:
To reduce the risk of electric shock, do not remove cover (or back). There are no user serviceable parts
inside. Maintenance and repairs should be exclusively carried out by qualified service personnel.
The warning triangle with lightning symbol indicates dangerous uninsulated voltage inside the unit, which may cause an
electrical shock.
The warning triangle with exclamation mark indicates important operating and maintenance instructions.
Warning! This symbol indicates a hot surface. Certain parts of the housing can become hot during operation.After use, wait for a
cool-down period of at least 10 minutes before handling or transporting the device.
CAUTION! HIGH VOLUMES IN AUDIO PRODUCTS!
This device is meant for professional use. Therefore, commercial use of this equipment is subject to the respectively applicable national accident
prevention rules and regulations. As a manufacturer,Adam Hall is obligated to notify you formally about the existence of potential health risks.
Hearing damage due to high volume and prolonged exposure: When in use, this product is capable of producing high sound-pressure levels (SPL)
that can lead to irreversible hearing damage in performers, employees, and audience members. For this reason, avoid prolonged exposure to
volumes in excess of 90 dB.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC
Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment
generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
INTRODUCTION
LD Systems U500 CS 4 - 4-channel wireless conference system
The U500®microphone stations feature a gooseneck condenser microphone with a hyper cardioid pattern. The heavy table base has a
button to turn on, off and mute, as well as an attenuation control and a switchable 130 Hz high-pass filter, which effectively reduces the
proximity effect and structure-borne sound in addition to the XLR microphone connector with 28 V phantom power. The high-contrast OLED
display shows the radio frequency, battery status, microphone station number, group and channel. The transmission range is 60 Hz - 16
kHz.
For fast and comfortable setting up of the system, the 4-channel receiver of the U500® conference system boasts an automatic frequency
and channel search, infrared synchronisation, a digital encoder and 4 buttons for direct access to the individual channels.The high-contrast
OLED display provides a complete overview of all functions and settings, such as the strength of the audio and radio signal or priority and
battery status of the microphone stations. To suppress crosstalk, feedback and comb filter effects, the number of microphones used at the
same time can be adjusted. The choice of automatic or manual gate setting and a pilot tone ensures top-notch sound quality and noise im-
munity of the U500® conference system. In addition to individual channel outputs, the receiver has a sum output; an access lock prevents
unauthorised changing of the settings, and the RS-232 interface allows integration into external control systems.
For system expansion, up to five U500® receivers can be daisy-chained and operated in master-slave mode: thus, up to 20 microphone
stations are available. The U500® conference system is available in three versions in the radio frequency ranges of 554 - 586 MHz,
662 - 694 MHz or 823 - 832 MHz + 863 - 865 MHz.
Wireless True Diversity UHF conference system
Automatic channel search
Automatic frequency search
Infrared frequency synchronisation of the receiver and microphone unit
Pilot tone
Priority circuit
Automatic and manual gate modes
Security lock
RS-232 interface for external control

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1POWER
On / Off switch with LED display. The power LED lights up once the system is properly connected to the power mains and is switched on.
2DISPLAY
Multi-functional OLED graphics display for displaying information such as active microphone, radio frequency and audio signal level. Also
indicates the menu items in order to adjust system settings as desired.
3MIC RX1 - RX4
Illuminated switch to select the receiving channels 1 to 4.
4PUSH TO ENTER
Combined pressure rotary encoder to access the Edit menu and to select and edit individual menu items.
5
Infrared interface for synchronising the relevant system settings of the transmitter with the receiver (e.g. transmission frequency).
6Device for attaching the antennae for rack installation. Remove the covers, attach the BNC adapter to the front panel and connect the
BNC antenna connectors on the back to the BNC adapters on the front panel (short antenna cable and BNC adapter included). Now, the
antennae can be attached to the front of the receiver.
7Screw holes for 19" rack mounting.
Overview of the frequency ranges
LDU505CS4 - Wireless Conference System 554 - 586 MHz
LDU506CS4 - Wireless Conference System 662 - 694 MHz
LDU508CS4 - Wireless Conference System 823 - 832 MHz + 863 - 865 MHz
NOTE: The use of wireless microphone systems may require a license (depending on the frequency rage and country).
For more detailed information, please contact the competent authority in your country.
Scope of delivery:
LDU50xCS4: Quad receiver plus 4 x microphone stations with gooseneck microphone, power supply, 2 x BNC antennae, 8 x AA batteries,
rack kit, Mini- DIN cable, data-link cable, instructions.
An extensive selection of suitable LD U500CS4 single components and accessories can be found at WWW.LD-SYSTEMS.COM
CONNECTIONS, CONTROLS AND INDICATORS
RECEIVER
7 6 3
25
4
1
6 7
The pilot tone feature protects a wireless microphone system against interference from unwanted signals, for example from other radio
equipment. The transmitter adds a second inaudible signal, the pilot tone, to the signal to be transmitted. The receiver identifies this as the
matching pilot tone and frees the corresponding signal. Signals without pilot tone remain muted.

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8DC SOCKET
Low-voltage socket for the power supply of the device. (DC 12 V Plus inside, 1000 mA) Please only use the power adapter included.
9Attachment eyelet for the low-voltage power cable (e.g. with a cable tie).
10 ANTENNA A / B
BNC antenna connector A and B. For optimal reception, please connect the supplied antenna to their respective connectors A and B and
point them upward in "V" formation.
11 MIX OUT
Balanced audio output with 3-pin XLR socket (mix of signals from channels 1 to 4).
12 OUTPUT 1 - 4
Balanced individual inputs of channels 1 to 4 with 3-pin XLR sockets.
13 AUDIO LINK IN / OUT
Mini DIN connectors to daisy-chain the audio outputs of up to five U500CS4 receivers (1 mini DIN connection cable per device included). The
microphone channels of all slave units of the receivers in the system will be routed to the audio outputs MIX OUT of the master unit. Connect
the audio link OUT socket of the last slave unit in the device chain to the audio link IN socket of the penultimate slave unit etc.. Use the
audio link IN socket of the master unit at the beginning of the device chain.
14 DATA LINK IN / OUT
Connectors to daisy-chain up to five U500CS4 receivers (1 data cable per device included). Make sure that the receiver is configured as
a master or slave unit BEFORE the wiring is done, and that the wiring of the devices forms a "circle", i.e., both data link sockets of all
receivers must be used (example: left socket master -> right socket slave 1, left socket slave 1 -> right socket slave 2, left socket slave
2 -> right socket master). When daisy-chaining the receivers, the microphone station numbers are assigned automatically (Master = MIC
1 - 4, Slave 1 = MIC 5 - 8, Slave 2 = MIC 9 - 12, etc.). MAIN VOLUME, PRIORITY, MODE, THRESHOLD and HOLD TIME are now centrally set
on the master unit.
15 RS-232
The RS-232 interface allows for controlling the receiver via an external control unit. The command list can be found in the
download area of the product on WWW.LD-SYSTEMS.COM
9
8
12 11 13
15
14 10 10

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MICROPHONE STATION
16 MICROPHONE INPUT
Microphone input with lockable 3-pin XLR socket and 28 V phantom power. A gooseneck microphone is included in the delivery. Insert the
gooseneck microphone and point it at a distance of approximately 10 to 20 cm towards the signal source.
17 DISPLAY
Multi-functional OLED graphics display for displaying the radio frequency, the frequency group and channel, the microphone number
(= microphone station number) and battery status. After switching on the microphone station, "WELCOME" appears as a welcome message
for a short time. As soon as the mute button on the transmitter is activated, the information appears in the display as "MUTE", at the same
time the symbol of a crossed-out microphone appears in the microphone station status display of the receiver. When disabling mute, the
display is switched back to the main screen. As soon as the charge status of the batteries is low, the display shows "LOW BATTERY”; after
switching off the receiver, "POWER OFF” is displayed for a short period of time.
18
Infrared interface for synchronising the relevant system settings of the transmitter with the receiver (e.g. transmission frequency).
19 POWER / MUTE
Dual function switch:
1. To turn the transmitter on, press the switch briefly, to turn it off, press and hold for approx. 3 seconds.
2. When turned on, press the switch briefly to activate or deactivate the mute function. The illuminated
microphone symbol in the switch changes its colour to orange when muted, when deactivating the mute function, it turns green.
20 ATTN (Attenuator)
Attenuation of the microphone level. Turning it to the right increases the attenuation and the microphone volume is lowered. Turning it to the
left decreases the attenuation and the microphone volume is increased. Upon delivery, the potentiometer is set to the default setting in the
latch point (centre position).
21 LOW CUT
Low-cut filter for the microphone signal (frequency 130 Hz, switch in position = low-cut filter is activated).
22 BATTERY COMPARTMENT
To replace the batteries, open the battery compartment by pressing the lock lever of the cover towards the battery compartment and pulling
it upwards. Remove the used batteries and insert new batteries (AA, Mignon) as shown on the illustration inside the battery compartment.
Now, replace the battery compartment cover onto the battery compartment and push it downwards until the lock lever clicks into place. If
the microphone station is not in use for a long period of time, remove the batteries to avoid damage caused by leaking batteries.
20
22
21
16
17
18
19

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When operating the wireless transmission system, be sure to place the receiver in the direct line of sight of the microphone stations. For
optimal reception, perform the automatic frequency search after switching on the receiver. For the operating steps, see FREQ AUTO RUN.
MAIN DISPLAY
After switching on the receiver, “WELCOME” appears for a short time, then the main screen displays the following information: microphone
station number (MIC), radio signal level (RF), active antenna (A / B), level of the audio signal (AF), frequency channel (CH) and if two or more
units are daisy-chained, also the designation as master (M) or slave (S). After switching off the microphone station, “POWER OFF” appears
for a short time.
Active microphone station
Microphone station number
Frequency channel Active antenna and radio
signal level
Master / Slave
Audio signal level with Peak
display (PK)
MAIN VOLUME
Pressing the pressure rotary encoder PUSH TO ENTER will take you to the selection menu for system settings. To adjust the volume of the
sum output MIX OUT, select the menu item MIX OUT by rotating the encoder (light background). Now press 2x on the encoder to adjust the
volume as desired by rotating the encoder from 00 to 25. Confirm the entry by pressing the encoder. If you press the encoder only 1x, you
can exit this menu item without changes by rotating the encoder and selecting the arrow symbol (light background) and confirm by pressing
the encoder. This setting can only be carried out on a device that is configured as a master unit, if two to five units are daisy-chained. To
return to the main display, select EXIT by rotating the encoder (light background) and confirm by pressing the encoder. After approximately
10 seconds of inactivity, the display will automatically return to the main screen.
GROUP
Pressing the pressure rotary encoder PUSH TO ENTER will take you to the selection menu for system settings. To adjust the frequency group
of the receiver, select the menu item GROUP by rotating the encoder (light background). Now press 2x on the encoder to select one of the
available frequency groups as desired by rotating the encoder. Confirm the entry by pressing the encoder. If you press the encoder only
1x, you can exit this menu item without changes by rotating the encoder and selecting the arrow symbol (light background) and confirm
by pressing the encoder. To return to the main display, select EXIT by rotating the encoder (light background) and confirm by pressing the
encoder. After approximately 10 seconds of inactivity, the display will automatically return to the main screen.
OPERATION

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PRIORITY
Priority can be activated for a total of up to 2 microphone stations (1 - 5 receivers). Microphone stations which have priority are always active
and are transmitted by the connected audio system (unless their signal level exceeds the threshold), regardless of how many microphone
stations are set as maximum number of open positions (Number of Open Microphones - NOM). This setting can only be carried out on a device
that is configured as a master unit, if two to five units are daisy-chained.
Pressing the pressure rotary encoder PUSH TO ENTER will take you to the selection menu for system settings. Now select the PRIORITY
menu item by rotating the encoder (light background) and press the encoder to access the submenu. Now by rotating the encoder, select
the microphone station whose priority you want to change (light background), press the encoder and select the desired priority setting (ON
= on / OFF = off) by rotating the encoder once again. Confirm the entry by pressing the encoder. To exit the submenu, select the arrow
symbol by rotating the encoder (light background) and confirm by pressing the encoder. To return to the main display, select EXIT now by
rotating the encoder (light background) and confirm by pressing the encoder. After approximately 10 seconds of inactivity, the display will
automatically return to the main screen.
If two to five units are daisy-chained, the microphone stations 1 to 4 (MIC 1 - 4) are those of the master unit, the microphone stations 5 to 8
(MIC 5 - 8) are those of the first slave unit, and so on.To access the microphone stations of the slave units, select the arrow symbol pointing
right by rotating the encoder (light background) and confirm by pressing the encoder.
NOM (Number of Open Microphones)
Menu item to set the maximum number of simultaneously open microphone stations (1 - 4 microphone stations). This setting applies to all
devices and can only be carried out on a device that is configured as a master unit, if two to five units are daisy-chained (depending on the
system, one microphone station per unit is always open).
Pressing the pressure rotary encoder PUSH TO ENTER will take you to the selection menu for system settings. Now select the NOM menu
item by rotating the encoder (light background) and press the encoder 2x to set the maximum number of simultaneously open microphone
stations as desired from 1 to 4 by rotating the encoder. Confirm the entry by pressing the encoder. If you press the encoder only 1x, you can
exit this menu item without changes by rotating the encoder and selecting the arrow symbol (light background) and confirm by pressing the
encoder. To return to the main display, select EXIT now by rotating the encoder (light background) and confirm by pressing the encoder. After
approximately 10 seconds of inactivity, the display will automatically return to the main screen.
MODE (AUTO / MANUAL / OFF)
Automatic, manually adjustable and switchable gate function. When the signal levels of microphone stations drop below a certain threshold,
these will be muted by this feature if it is enabled. This means that for the transmission of a microphone station, background noise, feedback
and unwanted comb-filter effects from other open channels are effectively suppressed and the speech intelligibility is thus enhanced. When the
levels of input channels rise above a certain threshold, these will be automatically activated. This setting applies to all devices and can only be
carried out on a device that is configured as a master unit, if two to five units are daisy-chained. Setting the threshold value (THRESHOLD) and
the hold time (HOLD TIME) is disabled during the automatic operation. The threshold value is automatically adapted to the volume of ambient
sounds. The manual adjustment of the threshold and holding time for the activation of the microphone station is done in the menu items
THRESHOLD and HOLD TIME.

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Pressing the pressure rotary encoder PUSH TO ENTER will take you to the selection menu for system settings. Now select the MODE menu
item by rotating the encoder (light background) and press the encoder 2x to set the gate mode as desired by rotating the encoder to AUTO
(automatic), MANUAL (manual) or OFF (disabled). Confirm the entry by pressing the encoder. If you press the encoder only 1x, you can exit
this menu item without changes by rotating the encoder and selecting the arrow symbol (light background) and confirm by pressing the
encoder. To return to the main display, select EXIT now by rotating the encoder (light background) and confirm by pressing the encoder. After
approximately 10 seconds of inactivity, the display will automatically return to the main screen.
THRESHOLD
Manual adjustment of the threshold for the gate function (see menu item MODE). Adjust the threshold so that ambient noise does not
automatically activate a microphone station, and so that the activation of a microphone station by a speaker remains possible. This setting
applies to all devices and can only be carried out on a device that is configured as a master unit, if two to five units are daisy-chained.
Pressing the pressure rotary encoder PUSH TO ENTER will take you to the selection menu for system settings. Now select the THRESHOLD
menu item by rotating the encoder (light background) and press the encoder 2x to set the threshold level as desired from 01 to 10 by
rotating the encoder (1 = lowest threshold, 10 = highest threshold). Confirm the entry by pressing the encoder. If you press the encoder only
1x, you can exit this menu item without changes by rotating the encoder and selecting the arrow symbol (light background) and confirm by
pressing the encoder. To return to the main display, select EXIT now by rotating the encoder (light background) and confirm by pressing the
encoder. After approximately 10 seconds of inactivity, the display will automatically return to the main screen.
HOLD TIME
Manual adjustment of the hold time for the gate function (see menu item MODE). Set the hold time as desired (0.1 - 1s).The microphone
station remains active for the duration of the set hold time, even after muting the audio signal. This setting applies to all devices and can
only be carried out on a device that is configured as a master unit, if two to five units are daisy-chained.
Pressing the pressure rotary encoder PUSH TO ENTER will take you to the selection menu for system settings. Now select the HOLD TIME menu
item by rotating the encoder (light background) and press the encoder 2x to set the hold time as desired from 0.1 to 1s by rotating the encoder.
Confirm the entry by pressing the encoder. If you press the encoder only 1x, you can exit this menu item without changes by rotating the
encoder and selecting the arrow symbol (light background) and confirm by pressing the encoder. To return to the main display, select EXIT now
by rotating the encoder (light background) and confirm by pressing the encoder. After approximately 10 seconds of inactivity, the display will
automatically return to the main screen.

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SETUP
Menu item to configure a receiver as a master or slave unit if two to five devices are daisy-chained. When daisy-chaining the receivers,
the microphone numbers are assigned automatically (Master = MIC 1 - 4, Slave 1 = MIC 5 - 8, Slave 2 = MIC 9 - 12, etc.). MAIN VOLUME,
PRIORITY, MODE,THRESHOLD and HOLD TIME are now centrally set on the master unit. Pressing the pressure rotary encoder PUSH TO
ENTER will take you to the selection menu for system settings. Now select the SETUP menu item by rotating the encoder (light background)
and press the encoder 2x to set up the receiver as Master or Slave unit as desired by rotating the encoder. Confirm the entry by pressing
the encoder. If you press the encoder only 1x, you can exit this menu item without changes by rotating the encoder and selecting the arrow
symbol (light background) and confirm by pressing the encoder. To return to the main display, select EXIT now by rotating the encoder (light
background) and confirm by pressing the encoder. After approximately 10 seconds of inactivity, the display will automatically return to the
main screen.
BRIGHTNESS
Menu item to adjust the display brightness. Pressing the pressure rotary encoder PUSH TO ENTER will take you to the selection menu for
system settings. Now select the BRIGHTNESS menu item by rotating the encoder (light background) and press the encoder 2x to adjust the
brightness level as desired from 01 to 10 by rotating the encoder. Confirm the entry by pressing the encoder. If you press the encoder only
1x, you can exit this menu item without changes by rotating the encoder and selecting the arrow symbol (light background) and confirm by
pressing the encoder. To return to the main display, select EXIT now by rotating the encoder (light background) and confirm by pressing the
encoder. After approximately 10 seconds of inactivity, the display will automatically return to the main screen.
PANEL LOCK
To protect the system settings against accidental manipulation, the editing functionality of the menu items can be blocked. Pressing the
pressure rotary encoder PUSH TO ENTER will take you to the selection menu for system settings. Now select the PANEL LOCK menu item
by rotating the encoder (light background) and press the encoder 2x to lock (PANEL LOCK ON) or reopen (PANEL LOCK OFF) the editing
function by rotating the encoder. Confirm the entry by pressing the encoder. If you press the encoder only 1x, you can exit this menu item
without changes by rotating the encoder and selecting the arrow symbol (light background) and confirm by pressing the encoder. To return
to the main display, select EXIT now by rotating the encoder (light background) and confirm by pressing the encoder. After approximately 10
seconds of inactivity, the display will automatically return to the main screen. If the editing function is locked,“DISPLAY IS LOCKED” appears
briefly in the display when attempting to make changes in the menu, To enable the editing function, retrieve the PANEL LOCK menu item and
proceed as described above.
EXIT
To return to the main display, select EXIT by rotating the encoder (light background) and confirm by pressing the encoder. After approximately
10 seconds of inactivity, the display will automatically return to the main screen.

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MICROPHONE STATION STATUS DISPLAY
To view the status information of individual microphone stations, adjust the individual volume and in order to make changes in the micro-
phone station menu, press the switch corresponding to the desired microphone station (in this example RX1 = MIC 1). To adjust the volume,
use the pressure rotary encoder PUSH TO ENTER (rotate right = increase volume, rotate left = lower volume). In order to make changes in
the microphone station menu, press on the pressure rotary encoder.
Switch RX 1 - RX 4
Battery status
Frequency channel and frequency group
- Active antenna and radio signal level
- Audio signal level with Peak display (PK)
- Volume adjustment
Microphone station with priority
Mute function activated (mute)
Microphone station number and radio frequency
IR SYNC RUN
To synchronise the microphone station with the radio channel set in the receiver, bring the infrared port of the microphone station in direct visual
contact with the infrared port of the receiver (distance approx. 10 cm) and turn on the microphone station. Press the switch corresponding to
the desired microphone station (in this example RX 1 = MIC 1) and then press the pressure rotary encoder
PUSH TO ENTER. Now select the IR SYNC RUN menu item by rotating the encoder (light background) and press the encoder once more to
launch the synchronisation process. After a few seconds, the process is completed and the display of the microphone station switches for a
short time to “IR SYNC”, confirming successful synchronisation. When daisy-chaining the receivers, the microphone station numbers are
assigned automatically (Master = MIC 1 - 4, Slave 1 = MIC 5 - 8, Slave 2 = MIC 9 - 12, Slave 3 = MIC 13 - 16, Slave 4 = MIC 17 - 20). The
microphone station numbers are automatically transmitted to the microphone station during the synchronisation process and are shown on the
display. To cancel the operation, press the encoder. To return to the main display, select EXIT now by rotating the encoder (light background)
and confirm by pressing the encoder.Then press the switch corresponding to the desired microphone station (RX 1 - 4). After approximately 10
seconds of inactivity, the display will automatically return to the main screen.
FREQ AUTO RUN
Automatic frequency search (frequency scan) to determine an interference-free radio frequency in the current environment and to allow for
optimal reception. For this purpose, leave the corresponding transmitter off, but other radio systems turned on, if necessary. To start the
automatic frequency search, press the switch corresponding to the desired microphone station (in this example RX 1 = MIC 1) and press
the pressure rotary encoder PUSH TO ENTER. Now select the FREQ AUTO RUN menu item by rotating the encoder (light background). To
confirm the operation, press the encoder. Progress is now indicated on the display by an animation and the scanning process is completed
after a few seconds (to cancel, press the encoder). The resulting frequency is automatically enabled and, as in “IR SYNC RUN”, you can now
switch on the transmitter and synchronise it with the receiver. To return to the main display, select EXIT now by rotating the encoder (light
background) and confirm by pressing the encoder. Then press the switch corresponding to the desired microphone station (RX 1 - 4). After
approximately 10 seconds of inactivity, the display will automatically return to the main screen.
CHANNEL
Menu item to manually adjust the frequency channel. Press the switch corresponding to the desired microphone station (in this example RX
1 = MIC 1) and then press the pressure rotary encoder
PUSH TO ENTER. Now select the CHANNEL menu item by rotating the encoder (light background) and press the encoder 2x to adjust the
frequency channel as desired by rotating the encoder. Confirm the entry by pressing the encoder. If you press the encoder only 1x, you can

ITALIANOPOLSKIESPAÑOL
FRANCAISDEUTSCHENGLISH
13
MICROPHONE STATION STATUS DISPLAY
To view the status information of individual microphone stations, adjust the individual volume and in order to make changes in the micro-
phone station menu, press the switch corresponding to the desired microphone station (in this example RX1 = MIC 1). To adjust the volume,
use the pressure rotary encoder PUSH TO ENTER (rotate right = increase volume, rotate left = lower volume). In order to make changes in
the microphone station menu, press on the pressure rotary encoder.
Switch RX 1 - RX 4
Battery status
Frequency channel and frequency group
- Active antenna and radio signal level
- Audio signal level with Peak display (PK)
- Volume adjustment
Microphone station with priority
Mute function activated (mute)
Microphone station number and radio frequency
IR SYNC RUN
To synchronise the microphone station with the radio channel set in the receiver, bring the infrared port of the microphone station in direct visual
contact with the infrared port of the receiver (distance approx. 10 cm) and turn on the microphone station. Press the switch corresponding to
the desired microphone station (in this example RX 1 = MIC 1) and then press the pressure rotary encoder
PUSH TO ENTER. Now select the IR SYNC RUN menu item by rotating the encoder (light background) and press the encoder once more to
launch the synchronisation process. After a few seconds, the process is completed and the display of the microphone station switches for a
short time to “IR SYNC”, confirming successful synchronisation. When daisy-chaining the receivers, the microphone station numbers are
assigned automatically (Master = MIC 1 - 4, Slave 1 = MIC 5 - 8, Slave 2 = MIC 9 - 12, Slave 3 = MIC 13 - 16, Slave 4 = MIC 17 - 20). The
microphone station numbers are automatically transmitted to the microphone station during the synchronisation process and are shown on the
display. To cancel the operation, press the encoder. To return to the main display, select EXIT now by rotating the encoder (light background)
and confirm by pressing the encoder.Then press the switch corresponding to the desired microphone station (RX 1 - 4). After approximately 10
seconds of inactivity, the display will automatically return to the main screen.
FREQ AUTO RUN
Automatic frequency search (frequency scan) to determine an interference-free radio frequency in the current environment and to allow for
optimal reception. For this purpose, leave the corresponding transmitter off, but other radio systems turned on, if necessary. To start the
automatic frequency search, press the switch corresponding to the desired microphone station (in this example RX 1 = MIC 1) and press
the pressure rotary encoder PUSH TO ENTER. Now select the FREQ AUTO RUN menu item by rotating the encoder (light background). To
confirm the operation, press the encoder. Progress is now indicated on the display by an animation and the scanning process is completed
after a few seconds (to cancel, press the encoder). The resulting frequency is automatically enabled and, as in “IR SYNC RUN”, you can now
switch on the transmitter and synchronise it with the receiver. To return to the main display, select EXIT now by rotating the encoder (light
background) and confirm by pressing the encoder. Then press the switch corresponding to the desired microphone station (RX 1 - 4). After
approximately 10 seconds of inactivity, the display will automatically return to the main screen.
CHANNEL
Menu item to manually adjust the frequency channel. Press the switch corresponding to the desired microphone station (in this example RX
1 = MIC 1) and then press the pressure rotary encoder
PUSH TO ENTER. Now select the CHANNEL menu item by rotating the encoder (light background) and press the encoder 2x to adjust the
frequency channel as desired by rotating the encoder. Confirm the entry by pressing the encoder. If you press the encoder only 1x, you can
exit this menu item without changes by rotating the encoder and selecting the arrow symbol (light background) and confirm by pressing the
encoder. To return to the main display, select EXIT now by rotating the encoder (light background) and confirm by pressing the encoder. Then
press the switch corresponding to the desired microphone station (RX 1 - 4). After approximately 10 seconds of inactivity, the display will
automatically return to the main screen. Synchronise the microphone station with the radio frequency set in the receiver as described in IR
SYNC RUN.
Note: Only frequency channels which are not already used by another microphone station can be set.
SQUELCH
The squelch control prevents unwanted background noise when the transmitter is turned off. In addition, sudden background noises are suppressed
when the signal transmitted from the transmitter to the receiver is not strong enough (for instance because of excessive distance) Set the squelch
control (with the transmitter switched off) to the lowest setting, which still effectively suppresses background noises.With an increased squelch
level and in unfavourable conditions, the transmission range may decrease. Press the switch corresponding to the desired microphone station (in
this example RX 1 = MIC 1) and then press the pressure rotary encoder
PUSH TO ENTER. Now select the SQUELCH menu item by rotating the encoder (light background) and press the encoder 2x to adjust the squelch
level as desired (00 - 50 dB) by rotating the encoder. Confirm the entry by pressing the encoder. If you press the encoder only 1x, you can exit this
menu item without changes by rotating the encoder and selecting the arrow symbol (light background) and confirm by pressing the encoder. To
return to the main display, select EXIT now by rotating the encoder (light background) and confirm by pressing the encoder.Then press the switch
corresponding to the desired microphone station (RX 1 - 4). After approximately 10 seconds of inactivity, the display will automatically return to the
main screen.
EXIT (in the microphone station menu)
To return to the main display, select EXIT on the encoder by rotating the encoder (light background) and confirm by pressing the encoder.
Then press the switch corresponding to the desired microphone station (RX 1 - 4). After approximately 10 seconds of inactivity, the display
will automatically return to the main screen.
BATTERY STATUS
The battery status of the microphone station will appear in the display and is constantly updated. When the batteries are fully charged, the
symbol ( = approx. 70%, = approx. 30%) will appear. As soon as the charge of the batteries is low, the display on the transmitter
will show “LOW BATTERY” and the display on the receiver “LOW BATTERY” approximately every 4 seconds, and the number of the microphone
station with low batteries will be displayed. Replace the batteries immediately.

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ITALIANO POLSKI
DAISY-CHAINING
The combination of multiple receivers when daisy-chaining is not freely possible for
reasons of intermodulation.
The maximum number of U508CS4 receivers is 1.
The maximum number of U505CS4 receivers is 2.
The maximum number of U506CS4 receivers is 2.
For example: To combine 5 receivers intermodulation-free, you will need 1 x U508CS4,
2 x U505CS4 and 2 x U506CS4.
Make sure that the receiver is configured as a master or slave unit BEFORE the wiring
is done, and that the wiring of the devices forms a "circle", i.e., both data link sockets
of all receivers must be used (example: left socket master -> right socket slave 1, left
socket slave 1 -> right socket slave 2, left socket slave 2 -> right socket master).
WIRING EXAMPLE
Master
Slave 1
Slave 2
PROBLEM DISPLAY SOLUTION
No audio signal or low
level
Receiver: Reception is not displayed on
antenna A or B.
Check if the microphone station is turned on.
Check the batteries in the microphone station.
Receiver: Display light is off Check the power supply in the transmitter.
Receiver: Reception is not displayed on
antenna A or B.
Microphone Station: Device is turned on.
Charge status of the batteries is ok.
Check whether the radio frequency of transmitter and
receiver match.
Reduce the distance between transmitter and receiver.
Make sure that there is a direct line of sight between the
transmitter and receiver.
Make sure that the antennae of the receiver are pointing
upwards and in a V-shape.
Reduce the amount of noise reduction (SQUELCH)
Receiver: Antenna A or antenna B is displayed. Check the ATTN setting on the microphone station.
Distortion and inter-
ference
Receiver: Radio signal is displayed Remove possible sources of interference (digital devices,
other wireless systems).
Increase the level of noise reduction (MUTE level) on the
receiver.
Distorted sound Transmitter and receiver: "LOW BATTERY" is
displayed.
Receiver: AF PK peak indicator is displayed
on the receiver display.
Replace the batteries in the microphone station.
Increase the level attenuation ATTN in the microphone station.
ERROR DETECTION

ITALIANOPOLSKIESPAÑOL
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15
Receiver
Model name: LDU508CS4 LDU505CS4 LDU506CS4
Receiver type: true diversity true diversity true diversity
Modulation: FM, PLL synthesized FM, PLL synthesized FM, PLL synthesized
Frequency range: 823 - 832 MHz & 863 - 865
MHz
554 - 586 MHz 662 - 694 MHz
Channels: 60 (6 x 10) 150 (10 x 15) 180 (10 x 18)
Groups: 6 10 10
Antenna connectors: 2 x BNC 2 x BNC 2 x BNC
Frequency response: 60 - 16.000 Hz 60 - 16.000 Hz 60 - 16.000 Hz
Noise Reduction: adjustable squelch (10 steps) adjustable squelch (10 steps) adjustable squelch (10 steps)
THD: <0.2% @ 1kHz <0.2% @ 1kHz <0.2% @ 1kHz
Signal-to-noise ratio: >100dB >100dB >100dB
Balanced output: 4 x XLR 4 x XLR 4 x XLR
Balanced mix output: XLR XLR XLR
Audio output level (balanced): +12dBu +12dBu +12dBu
Other outputs: Data link (2x RJ11), Audio link
IN / OUT (MiniDIN4-F), Serial
RS-232 connector (9-Pole D-Sub
Female)
Data link (2x RJ11), Audio link
IN / OUT (MiniDIN4-F), Serial
RS-232 connector (9-Pole D-Sub
Female)
Data link (2x RJ11), Audio link IN
/ OUT (MiniDIN4-F), Serial RS-232
connector (9-Pole D-Sub Female)
Controls: POWER on/off, digital encoder,
RX 1 - 4 quick access buttons
POWER on/off, digital encoder,
RX 1 - 4 quick access buttons
POWER on/off, digital encoder, RX
1 - 4 quick access buttons
Indicators: OLED-graphic display OLED-graphic display OLED-graphic display
Operating voltage: 12V DC, 1000 mA 12V DC, 1000 mA 12V DC, 1000 mA
Operating temperature range: 5°C … 40°C 5°C … 40°C 5°C … 40°C
Relative humidity in operation: 20% … 80% (non condensing) 20% … 80% (non condensing) 20% … 80% (non condensing)
Dimensions (W x H x D): 484 x 44 x 243mm 484 x 44 x 243mm 484 x 44 x 243mm
Weight: 2,45kg 2,45kg 2,45kg
Accessories included: power adapter, 2 x antenna, data
cable, audio link cable
power adapter, 2 x antenna, data
cable, audio link cable
power adapter, 2 x antenna, data
cable, audio link cable
Features: Channel scan function, Infrared
frequency synchronisation,
Pilot tone, Mic priority, Auto /
manual gate mode, Panel control
lock, RS-232 control, Receiver
cascading,
8V phantom powered antenna
output (150mA)
Channel scan function, Infrared
frequency synchronisation,
Pilot tone, Mic priority, Auto /
manual gate mode, Panel control
lock, RS-232 control, Receiver
cascading,
8V phantom powered antenna
output (150mA)
Channel scan function, Infrared
frequency synchronisation, Pilot
tone, Mic priority, Auto / manual
gate mode, Panel control lock, RS-
232 control, Receiver cascading,
8V phantom powered antenna
output (150mA)
Mic Base Transmitter
Model name: LDU508CST LDU505CST LDU506CST
Modulation: FM, PLL Synthesized FM, PLL Synthesized FM, PLL Synthesized
Frequency range: 823 - 832 MHz & 863 - 865
MHz
554 - 586 MHz 662 - 694 MHz
Channels: 60 (6 x 10) 150 (10 x 15) 180 (10 x 18)
Groups: 6 10 10
Microphone connection: XLR Balanced XLR Balanced XLR Balanced
Microphone phantom power: 28V 28V 28V
Frequency response: 60 - 16.000 Hz 60 - 16.000 Hz 60 - 16.000 Hz
Mic Input Sensitivity/max.
Level:
100mV/1V, depending on attenu-
ation potentiometer
100mV/1V, depending on attenu-
ation potentiometer
100mV/1V, depending on attenua-
tion potentiometer
THD: <0.2% @ 1kHz <0.2% @ 1kHz <0.2% @ 1kHz
TECHNICAL SPECIFICATIONS

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ESPAÑOL ENGLISH
ITALIANO POLSKI
Signal-to-noise ratio: >100 dB >100 dB >100 dB
RF output power: 10mW 10mW 10mW
Controls: Power /mute, ATTN (attenuation),
Low cut
Power /mute, ATTN, Low cut Power /mute, ATTN, Low cut
Indicators: OLED-graphic display, LED illu-
minated button (Green/Amber )
OLED-graphic display, LED illu-
minated button (Green/Amber )
OLED-graphic display, LED illumi-
nated button (Green/Amber )
Power supply: 2 x AA battery 2 x AA battery 2 x AA battery
Operating time: up to 8 h (depending on
batteries)
up to 8 h (depending on
batteries)
up to 8 h (depending on batteries)
Operating temperature range: 5°C … 40°C 5°C … 40°C 5°C … 40°C
Relative humidity range in
operation:
20% … 80% (non condensing) 20% … 80% (non condensing) 20% … 80% (non condensing)
Dimensions (W x H x L): 115 x 54 x 135mm 115 x 54 x 135mm 115 x 54 x 135mm
Weight (without batteries): 0,72 kg 0,72 kg 0,72 kg
Features: Infrared frequency synchronisa-
tion, Adjustable attenuation, Low
cut 130 Hz, Rugged enclosure
Infrared frequency synchronisa-
tion, Adjustable attenuation, Low
cut 130 Hz, Rugged enclosure
Infrared frequency synchronisa-
tion, Adjustable attenuation, Low
cut 130 Hz, Rugged enclosure
MANUFACTURER´S DECLARATIONS
MANUFACTURER‘S WARRANTY & LIMITATIONS OF LIABILITY
You can find our current warranty conditions and limitations of liability at: http://www.adamhall.com/media/shop/downloads/documents/
manufacturersdeclarations.pdf. To request warranty service for a product, please contact Adam Hall GmbH, Daimler Straße 9, 61267 Neu
Anspach / Email: [email protected] / +49 (0)6081 / 9419-0.
CORRECT DISPOSAL OF THIS PRODUCT
(valid in the European Union and other European countries with a differentiated waste collection system)
This symbol on the product, or on its documents indicates that the device may not be treated as household waste. This is to avoid
environmental damage or personal injury due to uncontrolled waste disposal. Please dispose of this product separately from other waste
and have it recycled to promote sustainable economic activity. Household users should contact either the retailer where they purchased
this product, or their local government office, for details on where and how they can recycle this item in an environmentally friendly manner.
Business users should contact their supplier and check the terms and conditions of the purchase contract. This product should not be mixed
with other commercial waste for disposal.
FCC STATEMENT
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may cause undesired operation

ITALIANOPOLSKIESPAÑOL
FRANCAISDEUTSCHENGLISH
17
DEUTSCH
SIE HABEN DIE RICHTIGE WAHL GETROFFEN!
Dieses Gerät wurde unter hohen Qualitätsanforderungen entwickelt und gefertigt, um viele Jahre einen reibungslosen Betrieb zu gewährleisten.
Dafür steht LD Systems mit seinem Namen und der langjährigen Erfahrung als Hersteller hochwertiger Audioprodukte. Bitte lesen Sie diese
Bedienungsanleitung sorgfältig, damit Sie Ihr neues Produkt von LD Systems schnell optimal einsetzen können.
Mehr Informationen zu LD SYSTEMS finden Sie auf unserer Internetseite WWW.LD-SYSTEMS.COM
SICHERHEITSHINWEISE
1. Lesen Sie diese Anleitung bitte sorgfältig durch.
2. Bewahren Sie alle Informationen und Anleitungen an einem sicheren Ort auf.
3. Befolgen Sie die Anweisungen.
4. Beachten Sie alle Warnhinweise. Entfernen Sie keine Sicherheitshinweise oder andere Informationen vom Gerät.
5. Verwenden Sie das Gerät nur in der vorgesehenen Art und Weise.
6. Verwenden Sie ausschließlich stabile und passende Stative bzw. Befestigungen (bei Festinstallationen). Stellen Sie sicher, dass Wandhalterungen
ordnungsgemäß installiert und gesichert sind. Stellen Sie sicher, dass das Gerät sicher installiert ist und nicht herunterfallen kann.
7. Beachten Sie bei der Installation die für Ihr Land geltenden Sicherheitsvorschriften.
8. Installieren und betreiben Sie das Gerät nicht in der Nähe von Heizkörpern, Wärmespeichern, Öfen oder sonstigen Wärmequellen. Sorgen
Sie dafür, dass das Gerät immer so installiert ist, dass es ausreichend gekühlt wird und nicht überhitzen kann.
9. Platzieren Sie keine Zündquellen wie z.B. brennende Kerzen auf dem Gerät.
10. Lüftungsschlitze dürfen nicht blockiert werden.
11. Betreiben Sie das Gerät nicht in unmittelbarer Nähe von Wasser. Bringen Sie das Gerät nicht mit brennbaren Materialien, Flüssigkeiten
oder Gasen in Berührung. Direkte Sonneneinstrahlung vermeiden!
12. Sorgen Sie dafür, dass kein Tropf- oder Spritzwasser in das Gerät eindringen kann. Stellen Sie keine mit Flüssigkeit gefüllten Behältnisse
wie Vasen oder Trinkgefäße auf das Gerät.
13. Sorgen Sie dafür, dass keine Gegenstände in das Gerät fallen können.
14. Betreiben Sie das Gerät nur mit dem vom Hersteller empfohlenen und vorgesehenen Zubehör.
15. Öffnen Sie das Gerät nicht und verändern Sie es nicht.
16. Überprüfen Sie nach dem Anschluss des Geräts alle Kabelwege, um Schäden oder Unfälle, z. B. durch Stolperfallen zu vermeiden.
17.Achten Sie beim Transport darauf, dass das Gerät nicht herunterfallen und dabei möglicherweise Sach- und Personenschäden verursachen kann.
18. Wenn Ihr Gerät nicht mehr ordnungsgemäß funktioniert, Flüssigkeiten oder Gegenstände in das Geräteinnere gelangt sind, oder das
Gerät anderweitig beschädigt wurde, schalten Sie es sofort aus und trennen es von der Netzsteckdose (sofern es sich um ein aktives Gerät
handelt). Dieses Gerät darf nur von autorisiertem Fachpersonal repariert werden.
19. Verwenden Sie zur Reinigung des Geräts ein trockenes Tuch.
20. Beachten Sie alle in Ihrem Land geltenden Entsorgungsgesetze. Trennen Sie bei der Entsorgung der Verpackung bitte Kunststoff und
Papier bzw. Kartonagen voneinander.
21. Kunststoffbeutel müssen außer Reichweite von Kindern aufbewahrt werden.
BEI GERÄTEN MIT NETZANSCHLUSS
22. ACHTUNG: Wenn das Netzkabel des Geräts mit einem Schutzkontakt ausgestattet ist, muss es an einer Steckdose mit Schutzleiter
angeschlossen werden. Deaktivieren Sie niemals den Schutzleiter eines Netzkabels.
23. Schalten Sie das Gerät nicht sofort ein, wenn es starken Temperaturschwankungen ausgesetzt war (beispielsweise nach dem Transport).
Feuchtigkeit und Kondensat könnten das Gerät beschädigen. Schalten Sie das Gerät erst ein, wenn es Zimmertemperatur erreicht hat.
24. Bevor Sie das Gerät an die Steckdose anschließen, prüfen Sie zuerst, ob die Spannung und die Frequenz des Stromnetzes mit den auf
dem Gerät angegebenen Werten übereinstimmen. Verfügt das Gerät über einen Spannungswahlschalter, schließen Sie das Gerät nur an die
Steckdose an, wenn die Gerätewerte mit den Werten des Stromnetzes übereinstimmen. Wenn das mitgelieferte Netzkabel bzw. der mitgelie-
ferte Netzadapter nicht in Ihre Netzsteckdose passt, wenden Sie sich an Ihren Elektriker.
25. Treten Sie nicht auf das Netzkabel. Sorgen Sie dafür, dass spannungsführende Kabel speziell an der Netzbuchse bzw. am Netzadapter
und der Gerätebuchse nicht geknickt werden.
26. Achten Sie bei der Verkabelung des Geräts immer darauf, dass das Netzkabel bzw. der Netzadapter stets frei zugänglich ist. Trennen Sie
das Gerät stets von der Stromzuführung, wenn das Gerät nicht benutzt wird, oder Sie das Gerät reinigen möchten. Ziehen Sie Netzkabel und
Netzadapter immer am Stecker bzw. am Adapter und nicht am Kabel aus der Steckdose. Berühren Sie Netzkabel und Netzadapter niemals mit
nassen Händen.
27. Schalten Sie das Gerät möglichst nicht schnell hintereinander ein und aus, da sonst die Lebensdauer des Geräts beeinträchtigt werden könnte.
28. WICHTIGER HINWEIS: Ersetzen Sie Sicherungen ausschließlich durch Sicherungen des gleichen Typs und Wertes. Sollte eine Sicherung
wiederholt auslösen, wenden Sie sich bitte an ein autorisiertes Servicezentrum.
29. Um das Gerät vollständig vom Stromnetz zu trennen, entfernen Sie das Netzkabel bzw. den Netzadapter aus der Steckdose.
30. Wenn Ihr Gerät mit einem verriegelbaren Netzanschluss bestückt ist, muss der passende Gerätestecker entsperrt werden, bevor er entfernt
werden kann. Das bedeutet aber auch, dass das Gerät durch ein Ziehen am Netzkabel verrutschen und herunterfallen kann, wodurch Personen
verletzt werden und/oder andere Schäden auftreten können. Verlegen Sie Ihre Kabel daher immer sorgfältig.
31. Entfernen Sie Netzkabel und Netzadapter aus der Steckdose bei Gefahr eines Blitzschlags oder wenn Sie das Gerät länger nicht verwenden.

18
DEUTSCHFRANCAIS
ESPAÑOL ENGLISH
ITALIANO POLSKI
ACHTUNG
Entfernen Sie niemals die Abdeckung, da sonst das Risiko eines elektrischen Schlages besteht. Im
Inneren des Geräts befinden sich keine Teile, die vom Bediener repariert oder gewartet werden können.
Lassen Sie Wartung und Reparaturen ausschließlich von qualifiziertem Servicepersonal durchführen.
Das gleichseitige Dreieck mit Blitzsymbol warnt vor nichtisolierten, gefährlichen Spannungen im Geräteinneren, die einen elektrischen
Schlag verursachen können.
Das gleichseitige Dreieck mit Ausrufungszeichen kennzeichnet wichtige Bedienungs- und Wartungshinweise.
Warnung! Dieses Symbol kennzeichnet heiße Oberflächen.Während des Betriebs können bestimmte Teile des Gehäuses heiß werden.
Berühren oder transportieren Sie das Gerät nach einem Einsatz erst nach einer Abkühlzeit von mindestens 10 Minuten.
Warnung! Dieses Gerät ist für eine Nutzung bis zu einer Höhe von maximal 2000 Metern über dem Meeresspiegel bestimmt.
Warnung! Dieses Gerät ist nicht für den Einsatz in tropischen Klimazonen bestimmt.
ACHTUNG HOHE LAUTSTÄRKEN BEI AUDIOPRODUKTEN!
Dieses Gerät ist für den professionellen Einsatz vorgesehen. Der kommerzielle Betrieb dieses Geräts unterliegt den jeweils gültigen nationalen
Vorschriften und Richtlinien zur Unfallverhütung.Als Hersteller ist Adam Hall gesetzlich verpflichtet, Sie ausdrücklich auf mögliche Gesundheitsrisik-
en hinzuweisen. Gehörschäden durch hohe Lautstärken und Dauerbelastung: Bei der Verwendung dieses Produkts können hohe Schalldruckpegel
(SPL) erzeugt werden, die bei Künstlern, Mitarbeitern und Zuschauern zu irreparablen Gehörschäden führen können. Vermeiden Sie länger
anhaltende Belastung durch hohe Lautstärken über 90 dB.
EINFÜHRUNG
LD Systems U500 CS 4 - 4-Kanal kabelloses Konferenzsystem
Die U500®-Sprechstellen besitzen ein Schwanenhals-Kondensatormikrofon mit Hypernieren-Charakteristik. Der schwere Tischfuß verfügt neben
dem XLR-Mikrofonanschluss mit 28 V Phantomspeisung über eine Taste zum Ein-, Aus- und Stummschalten, sowie eine Dämpfungs-Regelung und
ein zuschaltbares 130 Hz Hochpassfilter, der den Nahbesprechungseffekt und Körperschall wirksam reduziert. Ein kontrastreiches OLED-Display
zeigt Funkfrequenz, Batteriestatus, die Nummer der Sprechstelle, Gruppe und Kanal an. Der Audio-Übertragungsbereich reicht von 60 Hz - 16 kHz.
Zur schnellen und komfortablen Systemeinstellung besitzt der 4-kanalige Empfänger des U500®-Konferenzsystems eine automatischen
Frequenz- und Kanalsuche, Infrarot-Synchronisation, einen digitalen Encoder und vier Tasten zum direkten Zugriff auf die einzelnen Kanäle.
Dabei bietet das kontraststarke OLED-Display eine vollständige Übersicht aller Funktionen und Einstellungen wie Stärke von Audio- und
Funksignal oder Priorität und Batteriestatus der Sprechstellen. Zur Unterdrückung von Übersprechen, Rückkopplung und Kammfiltereffekten
lässt sich die Anzahl gleichzeitig freigeschalteter Mikrofone festlegen. Die wahlweise automatische oder manuelle Gate-Einstellung und
ein Pilotton sorgen für erstklassige Klangqualität und Störsicherheit des U500®-Konferenzsystems. Neben individuellen Kanalausgängen
verfügt der Empfänger über einen Summenausgang, eine Zugriffssperre verhindert die unbefugte Änderung der Einstellungen, und die RS-232
Schnittstelle ermöglicht das Einbinden in externe Steuersysteme.
Zur Systemerweiterung lassen sich bis zu fünf U500®-Receiver kaskadieren und im Master-Slave-Modus betreiben, damit stehen maximal 20
Sprechstellen zur Verfügung. Das U500®-Konferenzsystem ist in drei Versionen erhältlich, die in den Funkfrequenzbereichen 554 - 586 MHz,
662 - 694 MHz oder 823 - 832 MHz + 863 - 865 MHz arbeiten.
Drahtloses True-Diversity-UHF-Konferenzsystem
Automatische Kanalsuche
Automatische Frequenzsuche
Infrarot-Frequenz-Synchronisation von Empfänger und Mikrofon-Einheit
Pilotton
Priority-Schaltung
Automatische und manuelle Gate-Modi
Sicherheitssperre
RS-232-Schnittstelle für externe Steuerung
Die Pilotton-Einrichtung schützt eine drahtlose Mikrofonanlage vor Einstreuungen unerwünschter Signale, beispielsweise die von anderen Funk-
anlagen. Der Sender fügt dem eigentlich zu übertragenden Signal ein zweites, unhörbares Signal, den Pilotton, hinzu. Der Empfänger identifiziert
diesen als den übereinstimmenden Pilotton und gibt das dazugehörige Signal frei. Signale ohne Pilotton bleiben stummgeschaltet.

ITALIANOPOLSKIESPAÑOL
FRANCAISDEUTSCHENGLISH
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1POWER
Ein- bzw. Ausschalter mit Anzeige-LED. Sobald das Gerät korrekt am Stromnetz angeschlossen und eingeschaltet ist, leuchtet die Power-LED.
2DISPLAY
Multifunktionales OLED-Grafikdisplay für die Anzeige von Informationen wie z.B. aktives Mikrofon, Funksignal-Pegel und Audiosignal-Pegel.
Zeigt weiterhin die Menüpunkte an, um Systemeinstellungen nach Wunsch vorzunehmen.
3MIC RX1 - RX4
Beleuchtete Taster zum Anwählen der Empfangskanäle 1 bis 4.
4PUSH TO ENTER
Kombinierter Drück-Dreh-Geber, um in das Bearbeitungsmenü zu gelangen und die einzelnen Menüpunkte auszuwählen und zu editieren.
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Infrarot-Schnittstelle zum Synchronisieren der relevanten Systemeinstellungen des Senders mit dem Empfänger (z.B. Funkfrequenz).
6Vorrichtung zum Anbringen der Antennen beim Rackeinbau. Entfernen Sie die Abdeckkappen, befestigen die BNC-Adapter an der
Frontblende und verbinden die BNC-Antennenanschlüsse auf der Rückseite mit den BNC-Adaptern in der Frontblende (kurze Antennenkabel
und BNC-Adapter im Lieferumfang). Montieren Sie nun die Antennen an der Vorderseite des Empfängers.
7Schraublöcher für den 19" Rackeinbau.
Übersicht Frequenzbereiche
LDU505CS4 - Wireless Conference System 554 - 586 MHz
LDU506CS4 - Wireless Conference System 662 - 694 MHz
LDU508CS4 - Wireless Conference System 823 - 832 MHz + 863 - 865 MHz
HINWEIS: Der Einsatz des Funkmikrofon-Systems kann je nach Frequenzband und Einsatzland eine Lizenz erfordern.
Für ausführliche Informationen wenden Sie sich bitte an die zuständige Behörde Ihres Landes.
Lieferumfang:
LDU50xCS4: Vierfachempfänger plus 4x Sprechstelle mit Schwanenhalsmikrofon, Netzteil, 2x BNC-Antennen, 8x AA Batterien, Rack-Kit, Mini-DIN
Kabel, Data-Link Kabel, Anleitung.
Eine umfangreiche Auswahl an LD U500CS4 Einzelkomponenten und Zubehör finden Sie auf WWW.LD-SYSTEMS.COM
ANSCHLÜSSE, BEDIEN- UND ANZEIGEELEMENTE
EMPFÄNGER
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DEUTSCHFRANCAIS
ESPAÑOL ENGLISH
ITALIANO POLSKI
8DC BUCHSE
Kleinspannungsbuchse für die Spannungsversorgung des Geräts (DC 12V Plus innen, 1000mA).Verwenden Sie bitte ausschließlich den
mitgelieferten Netzadapter.
9Befestigungsöse für das Kleinspannungskabel (z.B. mit Kabelbinder).
10 ANTENNA A / B
BNC-Antennenanschluß A und B. Für einen optimalen Empfang schließen Sie bitte jeweils eine mitgelieferte Antenne an den Anschlüssen A
und B an und richten sie nach oben in “V” Anordnung.
11 MIX OUT
Symmetrischer Audio-Ausgang mit 3-poliger XLR-Buchse (Mix aus Signalen der Kanäle 1 bis 4).
12 OUTPUT 1 - 4
Symmetrische Einzelausgänge der Kanäle 1 bis 4 mit 3-poligen XLR-Buchsen.
13 AUDIO LINK IN / OUT
Mini-DIN Anschlüsse zum Kaskadieren der Audio-Ausgänge von bis zu fünf U500CS4 Empfängern (1 Mini-DIN Verbindungskabel pro Gerät im
Lieferumfang). Die Mikrofonkanäle aller Slave-Einheiten der Empfänger im System werden hierbei auf den Audio-Ausgang MIX OUT der Mas-
ter-Einheit geroutet. Verbinden Sie den Audio Link-Anschluss OUT der letzten Slave-Einheit in der Gerätekette mit dem Audio Link-Anschluss IN
der vorletzten Slave-Einheit usw..Verwenden Sie den Audio Link-Anschluss IN der Master-Einheit am Anfang der Gerätekette.
14 DATA LINK IN / OUT
Anschlüsse zum Kaskadieren von bis zu fünf U500CS4 Empfängern (1 Datenkabel pro Gerät im Lieferumfang). Achten Sie darauf, dass die
Konfiguration der Empfänger als Master-, oder Slave-Einheit VOR der Verkabelung durchgeführt wird und bei der Verkabelung der Geräte ein
“Ring” entsteht, d.h., beide Data Link Buchsen aller Empfänger müssen belegt sein (Beispiel: linke Buchse Master -> rechte Buchse Slave
1, linke Buchse Slave 1 -> rechte Buchse Slave 2, linke Buchse Slave 2 -> rechte Buchse Master). Beim Kaskadieren von Empfängern
werden die Sprechstellennummern automatisch vergeben (Master = MIC 1 - 4, Slave 1 = MIC 5 - 8, Slave 2 = MIC 9 - 12 usw.). MAIN
VOLUME, PRIORITY, MODE,THRESHOLD und HOLD TIME werden nun zentral über die Master-Einheit eingestellt.
15 RS-232
Die RS-232 Schnittstelle ermöglicht die Steuerung des Empfängers über eine externe Steuereinheit. Die Befehl-Liste finden Sie im
Download-Bereich des Produkts auf WWW.LD-SYSTEMS.COM
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