Sennheiser Electronic SR2020D User Manual
Tourguide Wireless Transmitter
SR 2020 D
Instruction manual
Contents
Thank you for choosing Sennheiser!
We have designed this product to give you reliable operation over many years. Over 60 years of
accumulated expertise in the design and manufacture of high-quality electro-acoustic equipment
have made Sennheiser a world-leading company in this field.
Please take a few moments to read these instructions carefully, as we want you to enjoy your new
Sennheiser products quickly and to the fullest.
Contents
Important safety instructions ............................................................................................................ 2
Delivery includes .................................................................................................................................... 4
System components ............................................................................................................................. 4
Tourguide system overview ................................................................................................................ 4
Areas of application ......................................................................................................................... 5
Connection possibilities .................................................................................................................. 6
Product overview ................................................................................................................................... 7
Indications and displays on the transmitter .............................................................................. 8
Putting the SR 2020 D into operation .............................................................................................. 9
Preparing the transmitter for use ................................................................................................ 9
Connecting the transmitter to the mains .................................................................................12
Connecting external devices ........................................................................................................12
Connecting the headphones ........................................................................................................13
Operating the SR 2020 D ...................................................................................................................14
Switching the transmitter on/off ...............................................................................................14
Working with the operating menu .............................................................................................14
Selecting the menus ...................................................................................................................... 16
Overview of the operating menu ................................................................................................22
Cleaning the SR 2020 D .....................................................................................................................24
If a problem occurs....
Accessories and spare parts .............................................................................................................. 25
Specifications .......................................................................................................................................26
Manufacturer Declarations ...............................................................................................................27
Index .......................................................................................................................................................29
.........................................................................................................................24
1
Important safety instructions
Important safety instructions
• Read this instruction manual.
• Keep this instruction manual. Always include this instruction manual when passing the
device on to third parties.
• Clean only with a dry cloth.
• The configuration of the transmitter must only be carried out by professionally trained
personnel.
• Refer all servicing to qualified service personnel.
Servicing is required if the device has been damaged in any way, liquid has been spilled,
objects have fallen inside, the device has been exposed to rain or moisture, does not
operate properly or has been dropped.
• WARNING: To reduce the risk of fire or electric shock, do not expose the device and the
mains unit to rain or moisture.
• Do not place objects filled with liquids, such as vases or coffee cups, on the device.
• Disconnect the mains connector from the wall socket
– to completely disconnect the device from the mains,
– during lightning storms or when unused for long periods of time.
• Use only the supplied mains unit.
• Ensure that the mains unit is:
– always readily operable and easily accessible,
– properly plugged into the wall socket,
– only operated within the permissible temperature range (see “Specifications” on
page 26).
– not covered or exposed to direct sunlight for longer periods of time in order to prevent
heat accumulation.
2
Important safety instructions
Overloading
Do not overload wall outlets and extension cables as this may result in fire and electric shock.
Replacement parts
When replacement parts are required, be sure the service technician has used replacement
parts specified by Sennheiser or those having the same characteristics as the original part.
Unauthorized substitutions may result in fire, electric shock, or other hazards.
Danger due to high volumes
This is a professional device. Commercial use is subject to the rules and regulations of the
trade association responsible. Sennheiser, as the manufacturer, is therefore obliged to
expressly point out possible health risks arising from use.
This device is capable of producing sound pressure exceeding 85 dB(A). 85 dB(A) is the sound
pressure corresponding to the maximum permissible volume which is by law (in some
countries) allowed to affect your hearing for the duration of a working day. It 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 for a short time only) that you can no longer hear high
notes.
Intended use of the device
Intended use of the device includes:
y using the device for professional purposes,
y having read these instructions especially the chapter “Important safety instructions” on
page 2,
y using the device within the operating conditions and limitations described in this
instruction manual.
“Improper use” means using the device other than as described in these instructions, or under
operating conditions which differ from those described herein.
3
Delivery includes
Delivery includes
1 SR 2020 D transmitter
1NT2 mains unit
1telescopic antenna
1 GA 2 rack adapter, consisting of:
2rack mount “ears”
1blanking plate
1jointing plate
2blanking plugs for closing off unused BNC holes
12 recessed head screws M 3x6
2 recessed head screws M 6x10
4 device feet
1instruction manual
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 stethoset receivers
• EZL 2020-20 L charging case including
instruction manual of the overall system
• L 2021-40 charger (incl. “Conference Control” software)
Tourguide system overview
Together with the SR 2020 D transmitter, the Tourguide 2020 D system offers optimum
digital speech transmission for the following applications:
• simultaneous interpretations and
• stationary guided tours
4
Tourguide system overview
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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 17).
Stationary guided tours (“Tourguide“ mode)
With a stationary guided tour, both the group and the transmitters are in a fixed location.
5
Tourguide system overview
Examples for stationary guided tours are multimedia presentations, movie shows as well as
boat and bus tours in several languages.
Six fixed transmission frequencies allow for 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 26).
Connection possibilities
You can connect one of the following phantom-powered Sennheiser condenser microphones
(not included) to the SR 2020 D transmitter:
• ME 34, ME 35, ME 36
In addition, you can connect an audio source to the transmitter:
• Conference/interpretation systems
•MP3 player
•CD /DVD player
6
Product overview
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2
Product overview
Operating controls - front
Headphone output (PHONES),
¼” (6.3 mm) jack socket
Headphone volume control (VOL)
Display, backlit
/ rocker button, backlit
SET button, backlit
ON button, backlit
(serves as the ESC (cancel) key in the
operating menu)
Operating controls - rear
Cable grip for mains cable
Socket for connection of mains unit
(DC IN 12 V/300 mA)
Audio input (AF IN MIC/LINE),
XLR-3F socket
Service interface (DATA)
Type plate
Antenna output (ANT), BNC socket
Indications on the display panel
Display for the selected signal source
(Mic/Line)
Mic/Line level display
Channel display
Lock mode icon
(lock mode is activated)
7
Product overview
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Indications and displays on the transmitter
Display for the selected signal source (Mic/Line)
You can connect either a condenser microphone or an external
audio source to the transmitter.
If you connect a condenser microphone, select “Mic” via the
operating menu. If you connect an external audio source, select
“Line” (see page 19).
“Mic” or “Line” appears on the display .
Note:
If the “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 shows the input level.
When the transmitter’s audio input level is excessively high, the
Mic/Line level display 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 19).
Channel display
The channel display provides information on the currently
selected channel (see page 17).
Lock mode icon
The lock mode icon appears when the lock mode is activated
(see page 20).
8
Putting the SR 2020 D into operation
CAUTION!
Putting the SR 2020 D into operation
Preparing the transmitter for use
You can set up the SR 2020 D transmitter on an even surface or
mount it into a 19“ rack.
Note:
Do not fit the rubber feet when rack mounting the transmitter.
Setting up the transmitter on an even surface
To ensure that the transmitter cannot slip on the surface on
which it is placed, four self-adhesive soft rubber feet are
supplied.
Risk of staining of furniture surfaces!
Some furniture 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.
Fix the rubber feet to the base of the transmitter by peeling
of the safety paper and fitting them as shown in the diagram
on the left.
Connecting the antenna Connect the telescopic antenna to the antenna output at
the rear of the transmitter.
To obtain the best possible radiation power:
Align the antenna vertically.
9
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