Sennheiser Electronic TG2020D Users manual
Instructions for use
Tourguide
System 2020
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.
3
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.
4
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.
5
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.
6
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.
7
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.
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.
9
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
11
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
6
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
13
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.
15
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