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Instructions for use
Tourguide
System 2020
Page 2
Page 3
Contents
Safety instructions ............................................................................................................... 4
System components ............................................................................................................ 9
Overview of the system ...................................................................................................... 9
The operating controls ..................................................................................................... 11
Indications and displays on the transmitter ............................................................ 14
Indications and displays on the receiver ................................................................... 16
Indications and displays on the charging case ........................................................ 18
The functions of the transmitter operating controls ............................................. 20
The functions of the receiver operating controls .................................................... 21
The functions of the operating controls of the charging case ............................. 21
Putting the components into operation ....................................................................... 22
Using the components ..................................................................................................... 25
Switching the devices on/off ...................................................................................... 25
Adjusting the volume ................................................................................................... 27
Charging the rechargeable batteries ......................................................................... 28
Setting a channel ........................................................................................................... 30
Special transmitter settings ........................................................................................ 33
The operating menu of the transmitter ....................................................................... 39
Overview of the operating menu ............................................................................... 41
Care and maintenance ...................................................................................................... 43
If problems occur... ............................................................................................................ 44
Specifications ..................................................................................................................... 45
Accessoires ......................................................................................................................... 48
Manufacturer declarations .............................................................................................. 49
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.
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Safety instructions
These instructions for use contain important safety
information. These instructions are valid for all
Tourguide System 2020 versions.
Read these instructions.
Keep these instructions in a safe place. Always include
these instructions when passing the system on to
third parties.
Heed all warnings.
Follow all instructions.
Intended use of the system
“Intended use” means that the system should be used
within the operating conditions and limitations
described in these instructions.
“Improper use” means using the system other than as
described in these instructions, or under operating
conditions which differ from those described herein.
Operating the EZL 2020-20 L charging case
Use the device in dry rooms only. To reduce the risk of
fire or electric shock, do not expose the device to rain
or moisture. Objects filled with liquids, such as vases
or coffee cups, must not be placed on the device. Do
not use the device near water.
Never spill liquids of any kind onto the device. Should
a spillage occur, unplug the device and have it checked
by a technician.
Never push objects of any kind through openings of
this device as they may touch dangerous voltage
points or short-out parts that could result in fire or
electric shock.
Ensure sufficient ventilation. Do not block any
ventilation openings. Install in accordance with the
manufacturer’s instructions.
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Do not install near any heat sources such as central
heating radiators, electric heaters, stoves, or other
devices that produce heat. Keep the device away from
direct sunlight and similar sources of heat.
The EZL 2020-20 L charging case is a Class 1 device. It
must only be connected to properly grounded power
outlets.
This device is supplied complete with an IEC power
cable complete with a moulded mains plug. This is for
your safety – do not tamper with the mains. If the
supplied cable does not fit your mains socket, please
consult a competent electrician for a replacement
cable that matches the power output sockets in your
country, or to replace the obsolete socket with one to
current standards.
This device must be operated only from the type of
power supply indicated on the marking label. lf you
are not sure of the type of power supply to your
building, consult your dealer or local power company.
Do not overload wall outlets and extension cables as
this may result in fire and electric shock.
Protect the mains cable from being walked on or
pinched, particularly at plugs, convenience
receptacles, and the point where they exit from the
device.
Only use attachments/accessories specified by
Sennheiser.
Use only with the cart, stand, tripod, bracket, or table
specified by Sennheiser, or sold with the device. When
a cart is used, use caution when moving the cart/
device combination to avoid injury from tip-over.
Unplug the device during lightning storms or when
unused for long periods of time.
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Servicing
No user serviceable parts inside! Do not attempt to
service devices yourself as opening or removing
covers may expose dangerous voltage or other
hazards. If devices are opened by customers in breach
of this instruction, the warranty becomes null and
void.
Refer all servicing to qualified service personnel.
Servicing is required if a device has been damaged in
any way, such as mains cable or plug damage, 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.
Clean only with a dry cloth.
Symbols on adhesive labels attached to the
EZL 2020-20 L charging case
The label shown on the left is attached to top of the
device. The symbols on this label have the following
meaning:
This symbol is intended to alert the user to the
presence of uninsulated dangerous voltage within the
device’s enclosure that may be of sufficient
magnitude to constitute risk of fire or electric shock.
This symbol is intended to alert the user to the risk of
electric shock if the device is opened. There are no user
serviceable parts inside. Refer servicing to qualified
personnel only.
This symbol is intended to alert the user to the
presence of important operating and maintenance
instructions in the literature accompanying this
device.
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Attention! High Volume!
This is a professional transmission system.
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 system 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:
y You can hear ringing or whistling sounds in your
ears.
y You have the impression (even for a short time
only) that you can no longer hear high notes.
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Safety instructions for Li-poly and NiMH rechargeable batteries and batteries
If abused or misused, rechargeable batteries may leak. In extreme cases, they may
even present:
y a heat hazard,
y a fire hazard,
y a leakage hazard,
y an explosion hazard,
y a smoke or gas hazard.
Sennheiser does not accept any liability for damage arising from abuse or misuse.
Keep away from children. Observe correct polarity.
Do not heat above 70°C/
158°F, e.g. do not expose to
sunlight or throw into a fire.
Do not expose to moisture.
Do not short-circuit.
Do not mutilate or
dismantle.
Do not pack charged
batteries loose – danger of
shorting out / fire hazard.
Do not continue to use
defective rechargeable
batteries.
Only use original Sennheiser
rechargeable batteries.
Switch rechargeable batterypowered devices off after use.
Only charge rechargeable batteries
with the appropriate Sennheiser
chargers.
When not using rechargeable
batteries for extended periods of
time, charge them regularly (about
every three months).
Only charge rechargeable batteries
at ambient temperatures between
10 °C and 40 °C.
Immediately remove rechargeable
batteries from obviously defective
devices.
Dispose of rechargeable batteries
and devices with built-in
rechargeable batteries at special
collection points or return them to
your specialist dealer.
Additional safety instructions for the BA 2015 accupack and for batteries
Immediately remove flat batteries/
Do not solder.
8
rechargeable batteries from the
device.
Page 9
System components
The Tourguide System 2020 D consists of the
following components which are available from your
Sennheiser agent:
y 1 EZL 2020-20 L charging case including
instructions for use of the overall system
y 1 SK 2020 D bodypack transmitter
y HDE 2020 D stethoset receivers
y 1 BA 2015 accupack
y 1 mains cable
y 1 microphone (see next section)
Overview of the system
The Tourguide System 2020 D offers optimum digital
speech transmission for guided tours e.g. in factories
or museums. The use of RF transmission allows
freedom of movement for all members of the group.
Six preset intermodulation-free receiving frequencies
offer high flexibility and adaptability.
The SK 2020 D bodypack transmitter
You can connect one of the following Sennheiser
microphones (not included) to the transmitter:
y Clip-on microphones:
ME 2-N, ME 4-N, MKE 2-EW GOLD
y Headmics:
ME 3-N, HSP 2-EW, HSP 4-EW, HS 2-EW
y Hand-held micoophones with special connecting
cable:
e 815, e 825, e 835, e 840, e 845
In addition, you can connect any audio source (e.g. a
flash / MP3 player) to the transmitter.
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The HDE 2020 D stehoset receivers
The stethoset receivers are easy to use and
comfortable to wear. The built-in LC display shows all
the important information at a glance (receiving
channel, reception quality, charge status of th e built- in
Lithium-polymer rechargeable battery as well as the
currently set volume). The rocker button allows fast
and easy setting of the desired channel.
The system can be expanded at any time by adding
additional stethoset receivers.
The EZL 2020-20 L charging case
The charging case simultaneously recharges up to 20
stethoset receivers with their built-in rechargeable
batteries, as well as the bodypack transmitter with
the BA 2015 accupack inserted plus an additional
spare accupack. The channel copy function lets you set
all receivers to the same channel at the press of a
button.
Additional features of the charging case:
y Quick charge of accupacks.
y Automatic detection of full charge and subsequent
switching to trickle charging so the accupacks can
remain in the charger even when they have been
fully charged.
y Highest possible operational reliability, since
temperature and voltage of the accupacks are
monitored during charging.
y Long accupack service life due to overcharge
protection and recovery of deep-discharged accupacks.
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The operating controls
SK 2020 D bodypack transmitter
Line input
MUTE switch
Microphone input
Battery compartment cover
BA 2015 accupack
ON/OFF button
(under battery compartment cover)
Red LED LOW BATT/MUTE
Yellow LED PEAK
/ rocker button
CH 03
LINE
MIC
SET button
(under battery compartment cover)
Battery compartment
Antenna
Charging contacts
Battery compartment release buttons
LC display
Belt clip
(on the back of the transmitter)
Channel display
Lock mode icon
4-step battery status indication
MIC level display
LINE level display
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HDE 2020 D stethoset receiver
Earbows
Red/green LED for charge status
LC display
Volume control
/ rocker button for
channel selection
Charging contacts
12
Channel display
4-step battery status display
Volume display
RF signal indication
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EZL 2020-20 L charging case
Charging compartments for
accupack/transmitter
Red LED CHARGE
Green LED READY
Storage place for one microphone
Charging compartments for receivers
(slaves)
LED POWER
LED TEMP ERROR
LED COPY AVAILABLE
COPY button
Charging compartment with channel
copy function (master)
Air vents
IEC mains socket
Mains switch
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LINE
MIC
CH 03
Indications and displays on the
transmitter
Operation and battery status indication
The red LED LOW BATT/MUTE provides information
on the current operating state of the transmitter:
Red LED off:
The transmitter is switched on and the capacity of the
batteries/BA 2015 accupack is sufficient.
Red LED flashing:
The batteries are/the BA 2015 accupack is going flat
(LOW BATT). In addition, the 4-step battery status
display on the LC display provides information on
the remaining battery/BA 2015 accupack capacity.
AF peak indication
The yellow LED PEAK lights up when the transmitter’s audio input is overmodulated.
If the transmitter’s audio input level is excessively
high, the sound of the receivers may be distorted. In
order to avoid distortion in the receivers, reduce the
sensitivity of the transmitter’s line and/or microphone input (see “Changing the sensitivity of the line
input” on page 34 and “Changing the sensitivity of
the line input” on page 34).
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MUTE display
LINE
MIC
CH 03
The red LED LOW BATT/MUTE lights up when the
transmitter’s microphone input is muted (see “Muting
the transmitter” on page 25).
Note:
The muting function (MUTE) mutes the microphone
input only, not the line input .
Lock mode icon
The lock mode icon appears on the LC display when
the lock mode is activated (see “Activating/
deactivating the lock mode” on page 37).
LC display backlighting
After pressing a button, the LC display remains backlit
for approx. 15 seconds.
Display of the energy saving mode
When there is no audio signal for five minutes, the
transmitter automatically switches to energy saving
mode and “CH OFF” appears on the display.
When an audio signal reaches the transmitter, it
switches back to normal operation.
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6
Indications and displays on the receiver
RF signal indication
The RF signal indication (tower with radio waves)
on the LC display provides information on the RF
signal reception:
Tower with radio waves:
The received RF signal is sufficiently strong.
Tower without radio waves:
No RF signal is being received on the selected channel.
No tower, no radio waves:
The receiver is in stand-by mode. You can, however,
change the settings on the receiver.
Charging control LED
During charging, the LED provides information on
the charging status of the receiver’s built-in
rechargeable battery.
LED lights up red:
The built-in rechargeable battery is being charged.
LED lights up green:
The built-in rechargeable battery is fully charged. The
receiver is now ready for operation.
LED slowly flashes red:
The temperature of the built-in rechargeable battery is
outside the permissible range (3 – 40 °C). The charging
process is interrupted until the temperature is again
within the admissible
LED lights up yellow/orange:
The built-in rechargeable battery is defective. Please
contact your Sennheiser agent.
range.
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6
6
6
Volume display
K The volume display on the LC display provides
information on the current volume level.
Channel display
The channel display on the LC display provides
information on the currently selected channel.
Battery status display
The 4-step battery status display on the LC display
provides information on the remaining capacity of the
receiver’s built-in rechargeable battery.
Shortly before the rechargeable battery is completely
discharged, the display backlighting flashes,
indicating that the receiver will soon switch off
automatically.
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Indications and displays on the
charging case
Operation indication
The LED POWER lights up as long as the mains
supply is switched on.
Temperature indication
The LED TEMP ERROR lights up if the temperature in
the charging case gets too high and will remain on
until the temperature drops to a safe leve. All charging
processes are interrupted until the temperature drops
to a safe level.
LED indication for “automatic copying“ function
The LED COPY AVAILABLE lights up green when the
“automatic copying“ function is available. This
happens
y when a switched-on receiver is placed into the
charging compartment with channel copy
function (master)
and
y at least one receiver is placed into one of the other
receiver charging compartments (slaves) .
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The LED COPY AVAILABLE goes off when the
“automatic copying“ function is not available. This
happens
y when the receiver in the charging compartment
with channel copy function (master) is switched
off
or
y when the receiver is removed from the charging
compartment with channel copy function
(master) .
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LED indication for charging compartments for
BA 2015 accupack/transmitter
Each charging compartment for accupack/transmitter has an LED CHARGE and an LED READY
which indicate the following operating states:
No LED lit:
The charging compartment for accupack/transmitter is ready for operation but empty.
Or:
A transmitter without accupack has been placed into
the charging compartment.
Red LED CHARGE lit:
The accupack is being charged.
Green LED READY lit:
The accupack is fully charged and the charging case
has switched to trickle charging.
Green LED READY lights up briefly and then goes
off:
The transmitter is powered by standard batteries
which cannot be recharged.
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The functions of the transmitter operating controls
Operating control Mode* Function
Switched off Pressing the button: Switches the transmitter on
Pressing the button for approx. 3 seconds:
Switches the transmitter off
Cancels the selection and returns to the standard
display
Cancels the entry and returns to the selection
mode without storing the changes made
Changes to the setting mode of the selected
menu
Stores the setting and returns to the selection
mode (“STORED” is displayed briefly)
Changes directly to the “LOCK“ menu where you
can deactivate the lock mode
Changes to the previous menu () or change to
the next menu ()
Increases () or reduces () the setting of the
selected menu or switches the menu on (on) or
off (off)
ON/OFF button
SET button
/ rocker button
Standard display
Selection mode
Setting mode
Standard display Changes to the selection mode
Selection mode
Setting mode
Lock mode
activated
Standard display No function
Selection mode
Setting mode
* For information on the menu areas “standard display“, “selection mode“ and “setting
mode“, please see “Overview of the operating menu” on page 41.
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The functions of the receiver operating controls
Operating control Function
Volume control Turning the volume control: Changes the volume
/ rocker button
for channel selection
Earbows Pulling the earbows apart: Switches the stethoset receiver on
Pressing the rocker button: Changes to the next channel () or
changes to the previous channel ()
The functions of the operating controls of the charging case
Operating control Function
Mains switch Switching the charging case on/off
COPY button
Starting the channel copy function (see page 32)
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Putting the components into
operation
Setting up the charging case
Note:
The charging case as well as the accupacks and the
receivers’ built-in rechargeable batteries will get
hot during charging. Please ensure the following so
that the generated heat can dissipate:
y The air vents of the charging case must not be
covered or blocked.
y The charging case must be kept away from heat
sources and must never be exposed to direct
sunlight.
y During charging, do not put the case cover on the
charging case.
The charging case has four plastic feet to ensure that
it cannot slip on the surface on which it is placed.
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Caution!
Place the charging case on a flat, even surface.
Connect the supplied mains cable to the IEC mains
socket on the charging case.
Connect the cable to the mains.
Note:
The case cover can be used as a stand for the
charging case (see diagram on the left).
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
.
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Inserting and replacing the transmitter batteries /
accupack
For powering the transmitter, you can either use the
rechargeable BA 2015 accupack or two 1.5 V AA
size batteries. NB: Do not use any other rechargeable
batteries!
Open the battery compartment by pressing the two
release buttons and open the cover .
Insert the batteries or the BA 2015 accupack as
shown in the diagram on the left. Please observe
correct polarity when inserting the batteries/accupack.
Close the battery compartment cover .
Connecting the microphone
Note:
Suitable Sennheiser microphones are listed on
page 9.
Connect the microphone to the transmitter’s
microphone input .
Lock the microphone plug by screwing down the
coupling ring.
Adjust the sensitivity of the microphone input as
described on page 35.
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Connecting external audio sources
You can connect an external audio source such as a CD
player, MP3 player, tape player, etc. to the transmitter.
(Please note that you cannot connect a second
microphone.) Both signals – the microphone input
signal and the line input signal – are mixed together
equally in the transmitter.
Connect the line output of the external audio
source to the transmitter’s line input .
Lock the plug by screwing down the coupling ring.
Switch the line input on as described on page 33.
Adjust the sensitivity of the line input as described
on page 34.
Attaching the transmitter to clothing
The transmitter is attached to clothing (e.g. belt,
waistband) with the supplied belt clip .
The clip is detachable so that you can also attach the
transmitter with the antenna pointing downwards. To
do so, withdraw the clip from its fixing points and
attach it the other way round.
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Using the components
Switching the devices on/off
Switching the transmitter on/off
To switch the transmitter on:
Briefly press the ON/OFF button .
The LC display indicates the device name and
then switches to the standard display.
To switch the transmitter off:
Press and hold the ON/OFF button until “OFF“
appears on the display.
Note:
Remove the batteries or the accupack when the
transmitter will not be used for extended periods of
time.
Muting the transmitter
To temporarily mute the transmitter’s microphone
input:
Set the MUTE switch to the position “MUTE“.
The red LED LOW BATT/MUTE lights up
permanently. The MIC level display no longer
shows any deflection. The transmitter’s microphone input is muted.
CH 03
LINE
MIC
Note:
The muting function (MUTE) mutes the microphone
input
but not the line input. This function
enables a pre-recorded track to be played through the
line input without being disturbed by the tour guide’s
microphone. When the track has finished, the guide
can un-mute the microphone and continue talking.
To deactivate the muting function:
Set the MUTE switch back to the right.
The red LED LOW BATT/MUTE goes off. The MIC
level display and the LINE level display
indicate the current levels.
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Automatically switching the receiver on/off
The receiver automatically switches on when you pull
the earbows apart. When you release the
earbows , the receiver switches to stand-by mode
(audio deactivated) and then switches off after two
minutes.
Switching the charging case on/off
To switch the charging case on:
Set the mains switch to the position “I”.
The LED POWER lights up.
To switch the charging case off:
Set the mains switch to the position “0”.
The LED POWER goes off.
Note:
When not using the charging case for extended
periods of time, switch it off and disconnect it from
the mains by pulling out the mains connector from
the wall socket.
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Adjusting the volume
Volume up? – NO!
When people use headphones, they tend to choose
a higher volume than with loudspeakers. Listening
at high volume levels for long periods can lead to
permanent hearing defects. Please protect your
hearing, Sennheiser headphones have an excellent
sound quality even at low volumes.
Adjusting the volume on the receiver
Use the volume control to adjust the volume so
that you can hear the speaker’s voice loud and
clear.
Note:
The volume control has no end stop, i.e. you can
turn it endlessly to the left or right.
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Charging the rechargeable batteries
Caution!
Charging the BA 2015 accupack
For charging, the BA 2015 accupack can remain in the
transmitter.
Place the transmitter with the accupack inserted
into the charging compartment for accupack/
transmitter as shown in the diagram on the left.
(Alternatively, you can remove the accupack from
the transmitter and insert it into the charging
compartment on its own – both charging compartments are identical and can charge the occupied
either in or out of the transmitter.)
When placed into a charging compartment, the
transmitter automatically switches off. The red LED
CHARGE of the charging compartment lights up.
Charging a completely discharged accupack takes
approx. 3½ hours at room temperature. It is normal
for the accupacks to get hot during charging.
However, the charging process may take longer if:
y the accupack is deep-discharged and first has to be
reconditioned by a deep discharge recovery charge,
y the ambient temperature is close to or over 40 °C,
since, in order to protect the accupack, the charging
process will be interrupted until the temperature
has dropped to a safe level.
After the accupack has been fully charged, the green
LED READY lights up.
y Only use the charging case for
charging the SK 2020 D transmitter,
the HDE 2020 D stethoset receivers
and the BA 2015 accupack.
y
Never try to charge other rechargeable
batteries or non-rechargeable batteries.
28
Notes:
y For safety reasons, each charging process will be
interrupted after 4 hours.
y When not using the BA 2015 accupack for
extended periods of time, charge it about every
three to six months.
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Charging the receivers’ built-in rechargeable batteries
Place the receiver into one of the charging
compartments for receivers (slaves) .
The LED lights up (see table).
Color of LED Meaning
red
green
red (flashing)
yellow/
orange
The built-in rechargeable battery is being
charged.
The built-in rechargeable battery is fully
charged.
The temperature of the built-in
rechargeable battery is over 40 °C
or below 3 °C.
The built-in rechargeable battery is
defective. Interrupt the charging process
and contact your Sennheiser agent.
Charging a completely discharged rechargeable
battery takes approx. 2½ hours at room temperature.
However, the charging process may take longer if:
y the rechargeable battery is deep discharged and
first has to be reconditioned by a deep discharge
recovery charge,
y
the temperature of the built-in rechargeable battery
is over 40 °C or below 3 °C, since, in order to protect
the rechargeable battery, the charging process will
be interrupted until the temperature is again within
the admissible
range (the LED flashes red).
After the built-in rechargeable battery has been fully
charged, the LED lights up green.
Notes:
y An additional temperature protection prevents
overheating inside the charging case. If the
temperature inside the charging case exceeds
safety limits, the charging process will be
interrupted and will only be restarted when the
charging case has cooled down.
y When not using the receivers for extended periods
of time, charge them about every six months in
order to prevent deep discharge damage to the
rechargeable batteries.
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Setting a channel
To set the complete system to a certain channel,
proceed as follows:
1. Set the transmitter to the desired channel (see
“Setting the transmission channel” on page 30).
2. Set one of the receivers to the same channel (see
“Setting the receiver channel” on page 31).
3. Automatically set all other receivers to the same
channel using the channel copy function (see
“Setting the receiver channel(s) using the channel
copy function” on page 32).
Setting the transmission channel
To set the transmitter to the desired channel, use the
transmitter’s operating menu. An overview of the
transmitter’s operating menu is given on page 41.
Make sure that the lock mode is deactivated (see
“Activating/deactivating the lock mode” on
page 37).
Press the SET button .
The operating menu appears and the first menu
“CHAN” flashes on the display.
Press the SET button .
The current channel flashes on the display.
Select a different channel by pressing the /
rocker button .
By pressing the position (UP) of the / rocker
button , the display jumps to the next channel;
by pressing the position (DOWN) of the /
rocker button , the display jumps to the previous
channel.
By pressing and holding the / rocker button ,
the display cycles continuously (repeat function).
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6
Press the SET button to permanently store the
selected channel.
“STORED” briefly appears on the display. The
transmitter now transmits on the selected channel.
The last menu selected is shown on the display.
To exit the operating menu:
Select the “EXIT“ menu by pressing the / rocker
button and press the SET button .
The standard display is shown.
Or:
Repeatedly press the ON/OFF button until the
standard display is shown.
Setting the receiver channel
In order for the receiver to receive the transmitter
signal, both transmitter and receiver have to be set to
the same channel.
To manually set the receiver channel:
Press the / rocker button for channel
selection .
The selected channel is shown on the channel
display .
If the transmitter is transmitting on this channel,
the receiver’s RF signal indication indicates the
field strength of the received RF signal.
Notes:
y By pressing and holding the / rocker button for
channel selection , the display cycles
continuously (repeat function).
y After channel 6, the display will return to channel 1.
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Setting the receiver channel(s) using the channel
copy function
The channel copy function lets you simultaneously set
a maximum of 19 receivers in the charging case to the
same channel. This is achieved by copying the current
channel of the receiver placed into the charging
compartment with channel copy function (master)
to all other receivers in the charging case.
Place all receivers which are to be set to the same
channel into the charging compartments for
receivers (slaves) .
Switch on the receiver whose channel you want to
copy.
Place this receiver into the charging compartment
with channel copy function (master) . The
receiver must be switched on.
The LED COPY AVAILABLE lights up green as long
as the channel copy function is available.
Press the COPY button to start the channel copy
function.
The LC displays of all receivers which are
successfully set to the same channel light up.
Notes:
y If the receivers’ built-in rechargeable batteries are
not discharged, you can use the channel copy
function even when the charging case is not
connected to the mains.
y If you do not press the COPY button , the receiver
placed into the charging compartment with
channel copy function (master) will automatically switch off after approx. two minutes.
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Using several Tourguide systems simultaneously
The Tourguide System 2020 D is supplied preset to six
selectable frequencies that will all work together with
each other. You can therefore have up to six separate
tours operating together in the same area.
All the supplied frequencies are intermodulation-free
and will work together.
However, we cannot guarantee freedom of interference from external sources – if you do experience
interference (and are using less than six systems
together) please try selecting a different preset
frequency.
Special transmitter settings
The following special settings can only be made via
the transmitter’s operating menu. An overview of the
transmitter’s operating menu is given from page 41
onwards.
Switching the line input on/off
You can connect an audio source such as a CD player,
MP3 player, etc. to the transmitter’s line input. If you
have connected an audio source, you then have to
switch on the line input as follows:
Press the SET button .
The operating menu appears and the first menu
“CHAN” flashes on the display.
Repeatedly press the / rocker button until
“LINE“ flashes on the display.
Press the SET button .
If the line input is switched off, “LINE.OFF“ flashes
on the display; if the line input is switched on,
“LINE.ON“ flashes on the display.
Press the / rocker button to change the
setting.
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LINE
MIC
CH 03
Press the SET button to permanently store the
setting.
“STORED” briefly appears on the display.
Adjust the sensitivity of the line input to match the
connected audio source as described in the
following section.
Changing the sensitivity of the line input
To adjust the sensitivity of the line input to match the
connected audio source:
Make sure that the line input is switched on (see
previous section).
Connect the external audio source, switch it on and
start playback.
Press the SET button .
The operating menu appears and the first menu
“CHAN” flashes on the display.
Repeatedly press the / rocker button until
“SENSIT“ flashes on the display and the LINE level
display appears.
Press the SET button .
The current input sensitivity and the LINE level
display appear on the display.
Press the / rocker button to change the
input sensitivity so that the LINE level display
shows full deflection during the loudest passages,
but the yellow LED PEAK never lights up.
Press the SET button to permanently store the
setting.
“STORED” briefly appears on the display, indicating
that the sensitivity of the line input has been
stored.
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LINE
MIC
CH 03
Changing the sensitivity of the microphone input
To adjust the sensitivity of the microphone input to
match the connected microphone:
Connect the microphone, position it correctly (refer
to the microphone’s operating manual) and speak
into the microphone as usual.
Press the SET button .
The operating menu appears and the first menu
“CHAN” flashes on the display.
Repeatedly press the / rocker button until
“SENSIT“ flashes on the display and the MIC level
display appears.
Press the SET button .
The current input sensitivity and the MIC level
display appear on the display.
Press the / rocker button to change the
input sensitivity so that the MIC level display
shows full deflection during the loudest passages,
but the yellow LED PEAK never lights up.
Press the SET button to permanently store the
setting.
“STORED” briefly appears on the display, indicating
that the sensitivity of the microphone input has
been stored.
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Displaying the transmission frequency
To display the transmission frequency assigned to the
current channel:
Press the SET button .
The operating menu appears and the first menu
“CHAN” flashes on the display.
Repeatedly press the / rocker button until
“FREQ“ flashes on the display.
Press the SET button .
The transmission frequency assigned to the current
channel appears on the display. You cannot change
this transmission frequency.
Press the ON/OFF button or the SET button to
return to the operating menu.
Loading the factory-preset default settings
To load the transmitter’s factory-preset default
settings:
Press the SET button .
The operating menu appears and the first menu
“CHAN” flashes on the display.
Repeatedly press the / rocker button until
“RESET” flashes on the display.
Press the SET button .
“RST.OK” flashes on the display.
Press the SET button to load the factory-preset
default settings.
“DONE” briefly appears on the display. The
transmitter is reset to the following factory-preset
default settings:
y Channel: 1
y Line input: switched off
y Input sensitivity
- Line input:
- Microphone input:
–24 dB
–36 dB
y Lock mode: deactivated
y Infra-red service interface: deactivated
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LINE
MIC
LINE
MIC
MIC
CH 03
CH 03
Activating/deactivating the lock mode
The lock mode prevents the transmitter from being
accidentally programmed or switched off during
operation.
To activate the lock mode:
Press the SET button .
The operating menu appears and the first menu
“CHAN” flashes on the display.
Repeatedly press the / rocker button until
“LOCK“ flashes on the display.
Press the SET button .
“LOC.OFF” flashes on the display.
Press the / rocker button .
“LOC.ON” flashes on the display.
Press the SET button to activate the lock mode.
“STORED” briefly appears on the display, indicating
that the lock mode has been activated. The lock
mode icon is displayed on the standard display.
To deactivate the lock mode:
Press the SET button .
“LOC.ON” flashes on the display.
Press the / rocker button .
“LOC.OFF” flashes on the display.
Press the SET button to deactivate the lock
mode.
“STORED” briefly appears on the display, indicating
that the lock mode has been deactivated. The lock
mode icon is no longer displayed on the
standard display.
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V 1.001
Displaying the version number
To display the version number of the operating
system installed:
Press the SET button .
The operating menu appears and the first menu
“CHAN” flashes on the display.
Repeatedly press the / rocker button until
“SERVIC“ flashes on the display.
Press the SET button .
The version number is displayed.
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The operating menu of the
transmitter
Working with the transmitter’s operating menu
To get into the operating menu:
Make sure that the lock mode is deactivated (see
“Activating/deactivating the lock mode” on
page 37).
Press the SET button .
The operating menu appears and the first menu
“CHAN” flashes on the display.
To select a menu:
Repeatedly press the / rocker button until
the desired menu flashes on the display.
Press the SET button .
To change a menu:
Press the / rocker button .
To store a setting:
Press the SET button .
To exit the operating menu:
Note:
If you do not press a button within 30 seconds, the
transmitter automatically returns to the standard
display.
Select the “EXIT“ menu by pressing the / rocker
button and press the SET button .
The standard display is shown.
Or:
Repeatedly press the ON/OFF button until the
standard display is shown.
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The transmitter’s operating menu contains the
following menus:
Menu Function of the menu
CHAN Selecting a channel (see page 30)
LINE
SENSIT (LINE)
SENSIT (MIC)
FREQ
RESET
LOCK
SERVIC
EXIT Exiting the operating menu (see page 39)
Switching the line input on/off
(see page 33)
Changing the sensitivity of the line input
(see page 34)
Changing the sensitivity of the microphone
input (see page 35)
Displaying the frequency of the current
channel (see page 36)
Loading the factory-preset default settings
(see page 36)
Activating/deactivating the lock mode
(see page 37)
Displaying the version number
(see page 38)
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Overview of the operating menu
EXIT
3 Sek
CH 01
SET
CHAN CH 01 CH 04
SET
ON/OFF
cancels your entry
in all levels of the
operating menu
Selecting the
channel
Current channel
STORED
LINE LIN. OFF LIN. ON
Switching the
line input on/off
SET
Current setting
STORED
SENSIT -24. dB -06. dB
Changing the
sensitivity of the
line input
SET
Current
sensitivity
setting
STORED
SENSIT -36. dB -06. dB
Changing the
sensitivity of the
microphone input
SET
Current
sensitivity
setting
STORED
FREQ
SET
863.124
/ :
01...06
SET: Stores the
setting
SET
/ :
OFF, ON
SET:
Stores the
setting
SET
/ :
0...-24
Stores the
SET:
setting
SET
/ :
0...-36
Stores the
SET:
setting
SET
LOCKED
Displaying the
transmission
frequency
RESET
ON/OFF
SET
ESC
Current
transmission
frequency
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FREQ
RESET RST.OK DONE
Loading the
factory-preset
default settings
LOCK
Activating/
deactivating the
lock mode
SET SET
Security check
SET
LOC.OFF LOC.ON
Activating the
lock mode
CH 01
Deactivating the
lock mode
SET
SET: Standard
display appears
SET: Stores the
setting, lock mode
is activated,
standard display
appears
LOC.ON
Current setting
STORED
SERVIC
Displaying the
version number
SET
SET
ESC
V 1.001 LOCKED
Current version
number
LOC.OFF
SET: Stores the
setting
SET
EXIT
Exiting the
operating menu
CHAN
42
SET
CH 01
Standard display
appears
Page 43
Care and maintenance
Only clean the Tourguide System 2020 D when it is
switched off and unplugged. Use a soft and dry cloth.
Do not use any cleansing agents or solvents as these
can damage the surfaces of the Tourguide System
2020 D.
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If a problem occurs...
Problem Possible cause Possible solution
No operation
indication on the
transmitter
No radio waves
on the receiver display
RF signal available,
no audio signal, the
red LED LOW BATT/
lights up
MUTE
Audio signal is
distorted
Operating time of the
transmitter is
drastically reduced
Operating time of the
receivers is drastically
reduced
Occasional drop outs
in the audio signal
Batteries are flat or
accupack is flat
No RF signal, transmitter
and receiver are not on the
same channel
No RF signal, transmitter is
out of range
Transmitter is in
energy saving mode
(see page 15)
Transmitter is muted
(MUTE)
Transmitter sensitivity is
adjusted too high
Normal ageing or damage
of BA 2015 accupack
Normal ageing or damage
of rechargeable batteries
Distance to the
transmitter is too great
Interference is being
received from an external
source
Interference is being
received from a second
transmitter
Replace the batteries or recharge the
accupack (see page 28)
Set transmitter and receiver to the
same channel (see page 31)
Reduce the distance between receiver
and transmitter
Check the signal source
Deactivate the muting function
(see page 25)
Change the sensitivity of the
microphone input (see page 35) or
line input (see page 34)
Replace the BA 2015 accupack
Have the rechargeable batteries
replaced by a Sennheiser Service
Department
Reduce the distance to
the transmitter
Change the system to a different
channel
Change the transmitters to different
channels
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.
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Specifications
SK 2020 D bodypack transmitter (Cat. No. 500548)
SK 2020 D-US bodypack transmitter (Cat. No. 500549)
Modulation 2 FSK (46K0F1D)
Frequency range 863 – 865 MHz
Frequency range (US) 926 – 928 MHz
Channels 6
RF output power 10 mW
RF output power (US) max. 50 mV/m (distance 3m)
Frequency response 100 – 7,000 Hz
Max. input voltage at
mic/line input
Operating time typ. 8 hrs
Power supply
Ambient temperature 0 – 50 °C
Dimensions approx. 82 x 64 x 24 mm
Weight (incl. BA 2015 accupack) approx. 160 g
Microphone: 650 mV
Line: 2 V
BA 2015 accupack, 2.4 V
or 2 AA size batteries, 1.5 V
(sensitivity –24 dB)
rms
HDE 2020 D stethoset receiver (Cat. No. 500543)
HDE 2020 D-US stethoset receiver (Cat. No. 500544)
(sensitivity –36 dB)
rms
Modulation 2 FSK
Frequency range 863 – 865 MHz
Frequency range (US) 926 – 928 MHz
Channels 6
Frequency response 100 – 7,000 Hz
Sound pressure level at 1 kHz max. 120 dB SPL
THD at 1 kHz < 1 %
Operating time typ. 8 hrs
Power supply Lithium-polymer rechargeable battery, 830 mAh
Ambient temperature 0 – 50 °C
Dimensions approx. 245 x 125 x 20 mm
Weight approx. 70 g
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EZL 2020-20 L charging case (Cat. No. 500542)
Ambient temperature during charging 0 – 40 °C
Mains voltage 100 – 240 VAC (50/60 Hz)
Primary power consumption max. 70 W
Charging voltage for HDE 2020 typ. 5 V
Charging current per
charging compartment for HDE 2020
Charging time HDE 2020 approx. 2.5 hrs
Charging voltage for SK 2020 / BA 2015 max. 3.4 V
Charging current per
charging compartment for
SK 2020 / BA 2015
Charging time SK 2020 / BA 2015 approx. 3.5 hrs
Dimensions approx. 600 x 270 x 380 mm
Weight (empty) approx. 8.3 kg
The Tourguide System 2020 D complies with the following European standards:
Radio: ETSI EN 301357-1/-2, class 1
EMC: ETSI EN 301489-1/-9, EN 55103-1/-2
Safety: EN 60065
VDE Az 580000-3330-0001/74605
Type Approval
(EU):
ETSI EN 300 442-1/-2
CE 0682
typ. 400 mA
typ. 500 mA
Frequency range 863 – 865 MHz, approved in:
A, B, BG, CH, CY, CZ, D, DK, E, EST, F, FIN, FL, GB, GR, H, HR, I, IRL, IS, L, LT, LV, M, N, NL, P, PL, S,
SK, SLO, TR.
The Tourguide System 2020 D-US complies with the following US and Canadian standards
USA: FCC-Part 15C
FCC-ID: DMOTG2020D
Canada: RSS-210 Issue 5
IC: 2099A-TG2020D
:
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FCC Rules
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:
1. Reorient or relocate the receiving antenna.
2. Increase the separation between the equipment and receiver.
3. Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
4. Consult the dealer or an experienced radio/TV technician for help.
The users manual or instruction manual for an intentional or unintentional radiator shall
caution the user that changes or modifications not expressly approved by the party
responsible for compliance could void the user's authority to operate the equipment.
Warning: Changes or modifications made to this equipment not expressly approved by
Sennheiser electronic Corp. may void the FCC authorization to operate this equipment.
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Accessories
Product name Product description Cat. No.
HDE 2020 D Stethoset receiver 500543
HDE 2020 D-US Stethoset receiver (US) 500544
-
-
SK 2020 D Transmitter 500548
SK 2020 D-US Transmitter (US) 500549
EZL 2020-20 L Charging case 500542
BA 2015 Accupack 009950
CL 2 Microphone cable, 1.5 m 004840
CL 1
ME 2-N Clip-on microphone 005018
ME 4-N Clip-on microphone 005020
MKE 2-EW GOLD Clip-on microphone 009831
ME 3-N Headmic 005019
HSP 2-EW Headmic 009866
HSP 4-EW Headmic 009867
HS 2-EW Headmic -
e 815 Hand-held microphone with connecting cable 009425
e 825 Hand-held microphone with connecting cable 004511
e 835 Hand-held microphone with connecting cable 004513
e 840 Hand-held microphone with connecting cable 009894
e 845 Hand-held microphone with connecting cable 004515
EU mains cable Mains cable with EU plug, 2.5 m, black 054324
US mains cable Mains cable with US plug, 2.5 m, black 057256 054325
UK mains cable Mains cable with UK plug, 2.5 m, black 054325 057256
Earbuds for HDE 2020 D and HDE 2020 D-US
stethoset receiver (black)
Earbuds for HDE 2020 D and HDE 2020 D-US
stethoset receiver (transparent)
Connecting cable for external audio devices
(line input), 52 cm
451623 37080
40949
005022
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Manufacturer declarations
Warranty regulations
The guarantee period for this Sennheiser product is 24 months from the date of purchase. Excluded are
accessory items, rechargeable or disposable batteries that are delivered with the product; due to their
characteristics these products have a shorter service life that is principally dependent on the individual
frequency of use.
The guarantee period starts from the date of original purchase. For this reason, we recommend that the
sales receipt be retained as proof of purchase. Without this proof (which is checked by the responsible
Sennheiser service partner) you will not be reimbursed for any repairs that are carried out.
Depending on our choice, guarantee service comprises, free of charge, the removal of material and
manufacturing defects through repair or replacement of either individual parts or the entire device.
Inappropriate usage (e.g. operating faults, mechanical damages, incorrect operating voltage), wear and
tear, force majeure and defects which were known at the time of purchase are excluded from guarantee
claims. The guarantee is void if the product is manipulated by non-authorised persons or repair stations.
In the case of a claim under the terms of this guarantee, send the device, including accessories and sales
receipt, to the responsible service partner. To minimise the risk of transport damage, we recommend
that the original packaging is used. Your legal rights against the seller, resulting from the contract of
sale, are not affected by this guarantee.
The guarantee can be claimed in all countries outside the U.S. provided that no national law limits our
terms of guarantee.
CE Declaration of Conformity
This equipment is in compliance with the essential requirements and other relevant provisions of
Directives 1999/5/EC, 89/336/EC or 73/23/EC. The declaration is available on the internet site at
www.sennheiser.com.
Before putting the device into operation, please observe the respective country-specific regulations!
Batteries or rechargeable batteries
The supplied batteries or rechargeable batteries can be recycled. Please dispose of them as
special waste or return them to your specialist dealer. In order to protect the environment,
only dispose of exhausted batteries.
WEEE Declaration
Your Sennheiser product was developed and manufactured with highquality materials and
components which can be recycled and/or reused. This symbol indicates that electrical and
electronic equipment must be disposed of separately from normal waste at the end of its
operational lifetime.
Please dispose of this product by bringing it to your local collection point or recycling centre
for such equipment. This will help to protect the environment in which we all live.
49
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