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SR 2020-D | 21

Cleaning the SR 2020-D

Cleaning the SR 2020-D

CAUTION

LIQUIDS CAN DAMAGE THE ELECTRONICS OF THE TRANSMITTER!

Liquids entering the housing of the device can cause a short-circuit and damage the elec-

tronics.

Keep all liquids away from the device.
Do not use any solvents or cleansing agents.

Before cleaning, disconnect the device from the mains.
Only use a soft and dry cloth to clean the device.

If a problem occurs

Problem

Possible cause

Possible remedy

No operation indication 

on the transmitter

No mains connection

Check the mains unit and the con-

nection to the DC IN socket (see 

page 11)

Audio signal is distorted

Transmitter sensitivity is 

adjusted too high

Change the sensitivity of the mi-

crophone input or line input (see 

page  17)
Select the source of the input signal 

(see page 17)

Occasional drop outs in 

the audio signal

Distance to the transmit-

ter is too great

Reduce the distance to the trans-

mitter

Interference of unknown 

origin

Set the transmitter and receiver to a 

different channel (see page 15)

Interference is being 

received from a second 

transmitter

Change the transmitters to different 

channels (see page 15)

No radio waves on the 

receiver display

Antenna is badly posi-

tioned

Improve the position of the transmit-

ting antenna: Mount the antenna to 

the front of the rack or use a remote 

antenna

No RF signal: transmitter 

and receiver are not on 

the same channel

Set the transmitter and receiver to 

the same channel (see page 15)

No RF signal: transmis-

sion range is exceeded

Reduce the distance between re-

ceiver and transmitter
Improve the position of the transmit-

ting antenna

If a problem occurs that is not listed in the above table or if the problem cannot be solved 

with the proposed solutions, please contact your local Sennheiser agent for assistance.

Summary of Contents for SR 2020-D -

Page 1: ...SR 2020 D Instruction manual ...

Page 2: ...he apparatus When a cart is used use caution when moving the cart appara tus combination to avoid injury from tip over 13 Unplug the power supply unit from the wall socket to completely disconnect the product from the power supply system during lightning storms when not using the product for long periods of time 14 Refer all servicing to qualified service personnel Servicing is required when the a...

Page 3: ... is used as a basis according to the specifications of industrial medicine Higher volumes or longer durations can damage your hearing At higher volumes the duration must be shortened in order to prevent hearing damage The following are sure signs that you have been subjected to excessive noise for too long a time You can hear ringing or whistling sounds in your ears You have the impression even fo...

Page 4: ...nking plugs for closing off unused BNC holes 12 recessed head screws M 3x6 2 recessed head screws M 6x10 4 device feet Instruction manual Manufacturer declarations System components The SR 2020 D transmitter allows the stationary use of the Tourguide 2020 D system The transmitter can be combined with the following individual components HDE 2020 D II stethoset receivers EK 2020 D II receivers ...

Page 5: ...onary guided tours Areas of application Simultaneous interpretations during conferences Conference mode The main application of the stationary SR 2020 D transmitter is its use for simultaneous interpretations during conferences Eight fixed transmission frequencies allow for interference free simultaneous interpretations in up to eight languages see Transmitting several languages simultaneously on ...

Page 6: ...r simultaneous transmission in up to six languages see Transmitting several languages simultaneously on page 17 The Tourguide 2020 D system operates in the 863 MHz 865 MHz frequency band which is license free in Europe see Specifications on page 22 Connection possibilities You can connect one of the following phantom powered Sennheiser condenser microphones not included to the SR 2020 D transmitte...

Page 7: ...on backlit 6 ON button backlit serves as the ESC cancel key in the operating menu 7 Cable grip for mains cable 8 Socket for connection of mains unit DC IN 12 V 300 mA 9 Audio input AF IN MIC LINE XLR 3F socket 10 Service interface DATA 11 Type plate 12 Antenna output ANT BNC socket 1 Display for the selected signal source Mic Line 2 Mic Line level display 3 Channel display 4 Lock mode icon lock mo...

Page 8: ...Mic microphone input is selected but no microphone is connected No Mic appears on the display Mic Line level display The Mic Line level display 2 shows the input level When the transmitter s audio input level is excessively high the Mic Line level display 2 shows full deflection In addition the display panel is in backlit in red and the text PEAK flashes in alternation with the channel display see...

Page 9: ...niture surfaces have been treated with varnish polish or synthetics which might cause stains when they come into contact with other synthetics Despite a thorough testing of the synthetics used by us we cannot rule out the possibility of staining Do not place the transmitter on delicate surfaces Ensure that the base of the transmitter is clean and free from grease before mounting the rubber feet Fi...

Page 10: ...ent protection When installing the device in a closed or multi rack assembly please note that intrinsi cally harmless leakage currents of the individual mains units may accumulate thereby exceeding the allowable limit value As a remedy ground the rack via an additional ground connection Mounting the antennas to the front or rear of the rack For the best possible radiation power you should align th...

Page 11: ...ck use the rack mount ears of the optional GA 3030 AM antenna mount Slide the transmitters into the 19 rack Secure the rack mount ears 14 to the rack 14 14 15 Mounting only one SR 2020 D When mounting only one transmitter into the rack use the blanking plate 13 instead of the second transmitter Hook the two rack mount ears 14 to the front panel of the transmitter Secure the rack mount ears 14 to t...

Page 12: ...tter Plug the mains connector into the wall socket 2 7 8 Connecting external devices You can connect either a microphone Mic or an external audio source Line e g CD or MP3 player to the transmitter To do so use a suitable audio cable with a length of up to 3 m Connecting an external audio source to the transmitter Connect the line output of the external audio source to the XLR 3F socket 9 of the t...

Page 13: ...age 7 The SR 2020 D transmitter also features a headphone output for monitoring purposes CAUTION DANGER OF HEARING DAMAGE Listening at high volume levels for long periods can lead to permanent hearing defects Use the headphone volume control VOL 2 to set the volume for the connected head phones to the minimum before putting the headphones on To monitor the audio signal via headphones Set the headp...

Page 14: ...an only be switched off when the standard display is shown on the display panel When in the operating menu the ON button 6 serves as the ESC cancel key i e you cancel your entry and return to the standard display Working with the operating menu By way of example of the Chan mode menu Channel mode this section describes how to use the operating menu For an overview of the operating menu please see ...

Page 15: ...g of the menu is displayed Adjusting a setting in the setting mode Use the rocker button 4 to jump between the settings Storing a setting Press the SET button 5 to store the selected setting STORED briefly appears on the display Exiting a menu Press the ON button 6 to return to the operating menu Exiting the operating menu Use the rocker button 4 to select the Exit menu and press the SET button 5 ...

Page 16: ...r and the receivers are set to the same channel mode Tour guide or Conference otherwise no connection can be established see page 16 Set the SR 2020 D transmitter to the desired channel see next section Set one of the receivers to the same channel Automatically set all other receivers to the same channel using the channel copy function for information on the channel copy function please refer to t...

Page 17: ...e You can choose between the two channel modes Conference and Tourguide The two modes have been designed for different applications and differ from each other in the num ber of available channels Channel mode Application Number of channels Conference Simultaneous interpretations 8 Tourguide Tourguide systems 6 To change the channel mode Select the Chan mode menu Use the rocker button 4 to to chang...

Page 18: ...y the transmitter Other audio sources can be amplified if their audio signal is too low see page 17 To adjust the input sensitivity Select the Sensitiv menu Use the rocker button 4 to change the setting The Mic Line level display 2 should show full deflection during the loudest passages Press the SET button SET 5 to store the input sensitivity of the Mic Line input Displaying the phantom power Pha...

Page 19: ...ode icon disappears from the standard display Loading the factory preset default settings Reset Select the Reset menu Reset No appears on the display Press the rocker button 4 until Reset Yes appears on the display Press the SET button 5 to reset the device to the factory preset default settings DONE appears on the display The transmitter is reset to the following factory preset default settings C...

Page 20: ...20 D SET SET ON SET 3 Sec Current setting Frequency 863 124 Channel 1 Frequency 863 124 Displaying the frequency Chan mode Tourguide SET SET Storesthesetting Current setting Chan mode Tourguide Chan mode Conference Setting the channel mode SET SET Storesthesetting Current setting Input Line Selecting the input signal Input Line Input Mic SET SET Mic 0 to 36dB Line 0 to 24dB SET Storesthesetting Cu...

Page 21: ...ast Lock Off Lock On Lock Off Activating deactivating the lock mode SET SET STORED SET SET STORED SET Stores the setting SET Stores the setting Current setting Current setting Current setting Reset No Loading the factory preset default settings Reset No Reset Yes SET SW Version SW Version 1 0 0 0 Displaying the software version Sensitiv SET SET ON SET SET ON SET SET ON SET SET ON Selection mode Se...

Page 22: ...age 17 Occasional drop outs in the audio signal Distance to the transmit ter is too great Reduce the distance to the trans mitter Interference of unknown origin Set the transmitter and receiver to a different channel see page 15 Interference is being received from a second transmitter Change the transmitters to different channels see page 15 No radio waves on the receiver display Antenna is badly ...

Page 23: ...100 7 000 Hz Signal to noise ration 70 dB A THD 1 1kHz Input voltage range 160 mV 2 5 V Mic 2 mV 125 mV Line Phantom Powering 48 V Power supply 12 V 10 5 V 16 V Current consumption max 300 mA Temperature 0 50 C Range Indoor up to 50 m Range Outdoor up to 100 m Dimensions 212 x 145 x 38 mm Weight 1100 g NT 2 3 CW mains unit Input voltage 100 240 V 50 60 Hz Current consumption max 120 mA Output volt...

Page 24: ...eceiver 504794 EK 2020 D II US Receiver US 504795 GA 3030 AM Antenna mount 2 transmitters 004368 AM 2 Antenna mount for GA 2 rack adapter 1 transmitter 009912 AC 3 Active transmitter combiner for 4 transmitters 503166 AC 3200 II Active transmitter combiner for 8 transmitters 505497 A 2003 UHF Remote antenna 003658 A 1031 U Remote antenna 004645 NT 2 3 EU Mains unit EU 503157 NT 2 3 US Mains unit U...

Page 25: ...Sennheiser electronic GmbH Co KG Am Labor 1 30900 Wedemark Germany www sennheiser com Printed in Germany Publ 05 19 583933 A01 ...

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