Sennheiser HD-E2020-D User manual

Tourguide
Instruction manual
System 2020

1
Contents
Contents
Important safety instructions ........................................................................................... 2
System components ............................................................................................................ 7
Overview of the system ...................................................................................................... 8
The operating controls ..................................................................................................... 10
Indications and displays on the bodypack transmitter ......................................... 15
Indications and displays on the radio microphone ................................................. 17
Indications and displays on the receiver ................................................................... 19
Indications and displays on the charging case ........................................................ 21
The functions of the operating controls of the bodypack
transmitter/radio microphone .................................................................................... 23
The functions of the operating controls of the receivers ...................................... 24
The functions of the operating controls of the charging case ............................. 24
Putting the components into operation ....................................................................... 25
Using the components ..................................................................................................... 29
Switching the devices on/off ...................................................................................... 29
Adjusting the volume ................................................................................................... 31
Charging the rechargeable batteries ......................................................................... 32
Setting a channel ........................................................................................................... 35
Muting the devices ........................................................................................................ 39
Special bodypack transmitter/radio microphone settings ................................... 40
The operating menu of the bodypack transmitter/radio microphone ............... 48
Overview of the bodypack transmitter’s operating menu .................................... 49
Overview of the radio microphone’s operating menu ............................................ 51
Care and maintenance ...................................................................................................... 53
If a problem occurs... ......................................................................................................... 54
Specifications ..................................................................................................................... 55
Accessories ......................................................................................................................... 58
Manufacturer declarations .............................................................................................. 59
Index .................................................................................................................................... 62
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.

2
Important safety instructions
Important safety instructions
• Read these instructions.
• Keep these instructions.
• Heed all warnings.
• Follow all instructions.
• Do not use this apparatus near water.
• Clean only with dry cloth.
• Do not block any ventilation openings. Install in accordance with the manu-
facturer’s instructions.
• Do not install near any heat sources such as radiators, heat registers, stoves, or
other apparatus (including amplifiers) that produce heat.
• Do not defeat the safety purpose of the polarized or grounding-type plug.
A polarized plug has two blades with one wider than the other. A grounding type
plug has two blades and a third grounding prong. The wide blade or the third
prong are provided for your safety. If the provided plug does not fit into your
outlet, consult an electrician for replacement of the obsolete outlet.
• Protect the power cord from being walked on or pinched, particularly at plugs,
convenience receptacles, and the point where they exit from the apparatus.
• Only use attachments/accessories specified by the manufacturer.
• Use only with the cart, stand, tripod, bracket, or table specified
by the manufacturer, or sold with the apparatus. When a cart is
used, use caution when moving the cart/apparatus combination
to avoid injury from tip-over.
• Unplug this apparatus during lightning storms or when unused
for long periods of time.
• Refer all servicing to qualified service personnel.
Servicing is required when the apparatus has been damaged in any way, such
as power supply cord or plug is damaged, liquid has been spilled or objects
have fallen into the apparatus, when the apparatus has been exposed to rain or
moisture, does not operate normally, or has been dropped.
• Use all-pole mains switch to disconnect the apparatus from the mains.
• WARNING: To reduce the risk of fire or electric shock, do not expose this appa-
ratus to rain or moisture.
• Do not expose this equipment to dripping or splashing and ensure that no
objects filled with liquids, such as vases, are placed on the equipment.
• The mains plug of the power supply cord shall remain readily operable.
• WARNING: Do not expose batteries or battery pack to excessive heat such as
sunshine, fire or the like.
• Caution: Danger of explosion if battery is incorrectly replaced. Replace only with
the same or equivalent type.

3
Important safety instructions
Hazard warnings on the EZL 2020-20 L charging case
The label shown on the left is attached to the rear of
the charging case. 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 indicates the presence of important oper-
ating and maintenance instructions in the literature
accompanying this device.
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 uses 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.
Safety check
Upon completion of any service or repairs to this
device, ask the service technician to perform safety
checks to determine that the devices are in a safe
operating condition.

4
Important safety instructions
Danger of hearing damage due to high volumes
This is a professional transmission system. Commercial
use is subject to the rules and regulations of the trade
association responsible. Sennheiser, as the manu-
facturer, is therefore obliged to expressly point out
possible health risks arising from use.
The HDE 2020 D and EK 2020 D receivers are 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 devices
Intended use includes:
• using the devices for professional purposes,
• having read this instruction manual, especially the
chapter “Important safety instructions” on page 2,
• using the devices within the operating conditions
and limitations described in this instruction
manual.
“Improper use” means using the devices other than as
described in this instruction manual, or under oper-
ating conditions which differ from those described
herein.
Safety instructions for Li-Polymer and Ni-
MH rechargeable batteries and batteries

5
Important safety instructions
If abused or misused, rechargeable batteries may leak. In extreme cases, they may
even present:
Sennheiser does not accept any liability for damage arising from abuse or misuse.
• a heat hazard,
• a fire hazard,
• an explosion hazard,
• a smoke or gas hazard.
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.
Switch rechargeable battery-
powered devices off after use.
Do not expose to moisture.
Only charge rechargeable batteries
with the appropriate Sennheiser
chargers.
Do not short-circuit.
When not using rechargeable
batteries for extended periods
of time, charge them regularly
(about every three months).
Do not mutilate or
dismantle.
Only charge rechargeable batteries
at ambient temperatures between
10°C/50°F and 40°C/104°F.
Do not pack charged
batteries loose – danger of
shorting out / fire hazard.
Immediately remove rechargeable
batteries from obviously defective
devices.
Do not continue to use
defective rechargeable
batteries.
Dispose of rechargeable batteries
and devices with built-in recharge-
able batteries at special collection
points or return them to your
specialist dealer.
Only use original Sennheiser
rechargeable batteries.
CAUTION!

6
Important safety instructions
Additional safety instructions for the BA 2015 accupack and for batteries
Rechargeable batteries must only be replaced by authorized Sennheiser partners.
If abused or misused, rechargeable batteries may be damaged!
Do not solder.
Immediately remove flat batteries/
rechargeable batteries from the
device.

7
System components
System components
The Tourguide System 2020 D consists of the
following components which are available from your
Sennheiser partner:
• EZL 2020-20 L charging case including
instruction manual of the overall system
• SK 2020 D bodypack transmitter
• SKM 2020 D radio microphone
• HDE 2020 D stethoset receiver
• EK 2020 D receiver
• BA 2015 accupack
•Mainscable
• Microphone (see next section)

8
Overview of the system
Overview of the system
The Tourguide System 2020 D offers optimum digital
speech transmission for conferences and guided tours
e.g. in factories or museums. The use of RF transmis-
sion allows freedom of movement for all members of
the group. Six preset intermodulation-free receiving
frequencies offer high flexibility and adaptability.
The Tourguide System 2020 D operates in the
863 MHz – 865 MHz frequency band, which is license-
free in Europe. For an overview, refer to page 56.
SK 2020 D bodypack transmitter
You can connect one of the following Sennheiser
microphones (to be ordered separately) to the body-
pack transmitter:
• Clip-on microphones:
ME 2-N, ME 4-N, MKE 2-EW GOLD
•Headmics:
ME 3-N, HSP 2-EW, HSP 4-EW, HS 2-EW
• Hand-held microphones with
special connecting cable:
e 815, e 825 S, e 835, e 840, e 845
In addition, you can connect any audio source (e.g. a
flash / MP3 player) to the bodypack transmitter.
SKM 2020 D radio microphone
This extremely rugged radio microphone can be used
in various tour situations. The radio microphone is
easy to configure and use.
For storage and safe transportation, the radio micro-
phone can be placed in the charging case and secured
with Velcro tape.

9
Overview of the system
HDE 2020 D and EK 2020 D receivers
The receivers are easy to use and comfortable to wear.
The built-in LC display shows all the important in-
formation at a glance (receiving channel, reception
quality, charge status of the 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 EK 2020 D allows you to connect any headphones
or an induction loop for wearers of hearing aids.
The system can be expanded at any time by adding
additional receivers.
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 BA 2015 accupack of the
bodypack transmitter/radio microphone. You can also
charge 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:
• Quick charge of accupacks.
• 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.
• Highest possible operational reliability, since
temperature and voltage of the accupacks are
monitored during charging.
• Long accupack service life due to overcharge
protection and recovery of deep-discharged accu-
packs.
• Safe storage and transportation of the system
components.

10
The operating controls
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
SET button
(under battery compartment cover)
Battery compartment
Antenna
Charging contacts
Battery compartment catches
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














LINE
CH 03
MIC



11
The operating controls
SKM 2020 D radio microphone
Sound inlet basket
Body of radio microphone
Battery compartment
(not visible from outside)
Display section
LC display
Turnable protective cap for operating controls
(shown removed);
the following operating controls become acces-
sible in turn by turning the protective cap:
SET button
button
button
Operation / battery status indicator,
red LED (ON/LOW BATT)
ON/OFF button
with ESC function (cancel) in
the operating menu
MUTE switch
Channel display
Lock mode icon
4-step battery status indication
7-step audio level display “AF”
     






CH 03



12
The operating controls
HDE 2020 D stethoset receiver
Earbows
Red/green LED for charge status
LC display
Volume control
Channel selection button /
Charging contacts
Channel display
4-step battery status display
Volume display
RF signal indication






6

13
The operating controls
EK 2020 D receiver
6









Volume control
Channel selection button /
LC display
LED for charge status
ON/OFF button
Headphone socket
Channel display
4-step battery status display
Volume display
RF signal indication

14
The operating controls
EZL 2020-20 L charging case
Charging compartments for
accupack/bodypack transmitter
Red LED CHARGE/ERROR
Green LED READY
Storage place for radio microphone
19 charging compartments for
receivers (slaves, light blue in
the diagram)
LED POWER
LED TEMP ERROR
LED COPY AVAILABLE
COPY button
Charging compartment with
channel copy function (master)
Air vents
IEC mains socket
Mains switch

15
The operating controls
Indications and displays on the
bodypack transmitter
Operation and battery status indication
The red LED LOW BATT/MUTE provides information
on the current operating state of the bodypack trans-
mitter:
Red LED off:
The bodypack transmitter is switched on and the capa-
city 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
display panel provides information on the remaining
battery/BA 2015 accupack capacity:
3 segments capacity approx. 100%
2 segments capacity approx. 70%
1 segments capacity approx. 30%
Battery icon flashing LOW BATT
AF peak indication
The yellow LED PEAK lights up when the trans-
mitter’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 micro-
phone input (see “Changing the sensitivity of the
bodypack transmitter’s line input” on page 41 and
“Changing the sensitivity of the bodypack transmit-
ter’s microphone input” on page 42).
LINE
CH 03
MIC



16
The operating controls
MUTE display
The red LED LOW BATT/MUTE lights up when the
transmitter's microphone input is muted (see “Muting
the devices” on page 39).
Note:
The muting function (MUTE) mutes the microphone
input  only, not the line input .
Lock mode icon
The lock mode icon appears on the display when
the lock mode is activated (see “Activating/deactivat-
ing the lock mode” on page 45).
Display backlighting
After pressing a button, the display remains backlit
for approx. 30 seconds.
Display of the energy saving mode
When there is no audio signal for 5 minutes or when
the bodypack transmitter is muted, it automatically
switches to energy saving mode. “CH OFF” appears on
the display and the transmission signal is deactivated.
When an audio signal reaches the bodypack trans-
mitter, it automatically switches back to normal oper-
ation and the display displays the selected channel.

LINE
CH 03
MIC


17
The operating controls
Indications and displays on the radio
microphone
Operation and battery status indication
The red LED (LOW BATT/ON)provides information
on the current operating state of the radio micro-
phone:
Red LED off:
The radio microphone 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
display panel provides information on the remaining
battery/BA 2015 accupack capacity:
3 segments capacity approx. 100%
2 segments capacity approx. 70%
1 segments capacity approx. 30%
Battery icon flashing LOW BATT
Lock mode icon
The lock mode icon appears on the display when
the lock mode is activated (see “Activating/deactivat-
ing the lock mode” on page 45).

CH 03

CH 03


18
The operating controls
Modulation display
The level display for audio signal “AF” shows the
modulation of the radio microphone.
When the radio microphone’s audio input level is
excessively high, the level display for audio signal
“AF”  shows full deflection for the duration of
the overmodulation. You can change modulation by
changing the input sensitivity of the radio micro-
phone as described on page 43.
MUTE display
When the radio microphone is muted, “MUTE” 
appears on the display (see “Muting the radio micro-
phone” on page 39).
Display backlighting
After pressing a button, the display remains backlit
for approx. 15 seconds.
Display of the energy saving mode
When there is no audio signal for 5 minutes or when
the radio microphone is muted, it automatically
switches to energy saving mode. “CH OFF” appears on
the display and the transmission signal is deactivated.
When an audio signal reaches the radio microphone,
it automatically switches back to normal operation
and the display displays the selected channel.
CH 03

CH 03


19
The operating controls
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:
An RF signal is being received on the selected channel.
Tower without radio waves:
No RF signal is being received on the selected channel
or the received signal level is too low.
No tower, no radio waves
HDE 2020 D only: The receiver is in standby mode. You
can, however, change the settings on the receiver.
Signal strength
The received signal strength may be reduced due to
body absorption of the RF signal.
Charge status LED
During charging,
•theLEDof the EK 2020 D or
•theLEDof the HDE 2020 D
provides information on the charge status of the
receiver’s built-in rechargeable battery.
6
