Sennheiser SKM 2020-D-US, SK 2020-D-US, HDE 2020-D-II US Users Manual

Tourguide 2020-D

Bedienungsanleitung Instruction manual Notice d‘emploi Istruzioni per l‘uso Instrucciones de manejo Gebruiksaanwijzing

Contents

Important safety instructions �� 2 System components ��5 Overview of the system ��6 The operating controls ��8

Indications and displays on the bodypack transmitter �� 14 Indications and displays on the radio microphone �� 16 Indications and displays on the receiver ��18 Indications and displays on the charging case ��20 Indications and displays on the charger ��22 The functions of the operating controls of the bodypack transmitter/radio

microphone ��24 The functions of the operating controls of the receivers ��25 The functions of the operating controls of the charging case ��25

The functions of the operating controls of the charger ��26 Putting the components into operation ��27 Operation �� 37

Switching the devices on/off��37

Adjusting the volume on the receiver ��41

Charging the rechargeable batteries ��42

Setting a channel ��47

Muting the devices�� 51

Special bodypack transmitter/radio microphone settings ��52

The operating menu of the bodypack transmitter/radio microphone ��59

Overview of the bodypack transmitter’s operating menu �� 60

Overview of the radio microphone’s operating menu ��62 Care and maintenance �� 64 If a problem occurs�� 65 Speciﬁcations �� 66 Accessories �� 69 Manufacturer declarations �� 71 Index ��73

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Important safety instructions

1� Read these safety instructions and the instruction manual of the product� 2� Keep these safety instructions and the instruction manual of the product�

Always include all instructions when passing the product on to third parties� 3� Heed all warnings� 4� Follow all instructions� 5� Do not use this apparatus near water� 6� Only clean the product when it is not connected to the power supply sys-

tem� Clean only with a dry cloth� 7� Do not block any ventilation openings� Install in accordance with the manu-

facturer‘s instructions� 8� Do not install near any heat sources such as radiators, heat registers,

stoves, or other apparatus (including ampliﬁers) that produce heat� 9� 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� 10� Protect the power cord from being walked on or pinched, particularly at

plugs, convenience receptacles, and the point where it exits from the appa-

ratus� 11� Only use attachments/accessories speciﬁed by the manufacturer� 12� 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� 13� Unplug this apparatus during lightning storms or when unused for long

periods of time� 14� 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� 15� Warning: To reduce the risk of ﬁre or electric shock, do not expose this

apparatus to rain or moisture and objects ﬁlled with liquids, such as vases,

should not be placed on this apparatus� 16� To completely disconnect this apparatus from the AC mains, disconnect the

power supply cord plug from the AC receptacle� 17� The mains plug of the power supply cord shall remain readily accessible�

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Important safety instructions

Hazard warnings on the rear of the device (EZL-2020-20 L, L 2021-40)

The label shown opposite is attached to the rear of the product� The symbols on this label have the following meaning:

Presence of uninsulated dangerous voltage within the product‘s enclosure that may be of sufﬁcient magnitude to constitute a risk of electric shock�

Never open the product as there is a risk of electric shock� There are no user serviceable parts inside the product� Always refer repairs to an authorized Sennheiser service partner�

Read and follow the safety and operating instructions contained in the instruction manual�

Risk of ﬁre due to overloading

Do not overload wall outlets and extension cables as this may result in ﬁre and electric shock�

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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�

Note on checking the protective earth connection: The protective earth conductor is only connected to the lower aluminium

strip of the case� For this reason, the protective earth connection can only be checked against the metal angled section at the base of the charging case� Only this part has a low-impedance connection to the protective earth conductor�

Danger due to high volume levels

This product is used for commercial purposes� 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 product is capable of producing sound pressure levels exceeding 85 dB (A)� 85 dB (A) is the sound pressure corresponding to the maximum

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Important safety instructions

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� Inform all users of these risks and ask them to set the volume to a moderate

level if necessary�

Intended use

The product is designed for indoor and outdoor use� The product can be used for commercial purposes� It is considered improper use when the product is used for any application not

named in the corresponding instruction manual� Sennheiser does not accept liability for damage arising from improper use or

misuse of this product and its attachments/accessories� Before putting the products into operation, please observe the respective

country-speciﬁc regulations! Sennheiser is not liable for damages resulting from the loss of connection

due to ﬂat or overaged (rechargeable) batteries or exceeding the transmission range�

Safety instructions for standard/rechargeable batteries

• Caution: Risk of explosion if you use or replace a battery by an incorrect

type�

• Do not short-circuit a cell or battery�

• Do not expose cells or batteries to heat or ﬁre� Avoid storage in sunlight�

• Do not subject cells or batteries to mechanical shock�

• Do not touch leaking/defective batteries unprotected�

• Observe correct polarity�

• Do not use different battery types�

• Charge rechargeable batteries at ambient temperatures between +10 °C

and +40 °C (+50 °F and +104 °F)�

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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

• L 2021-40 charger

• SK 2020-D bodypack transmitter

• SKM 2020-D radio microphone

• HDE 2020-D-II stethoset receiver

• EK 2020-D-II receiver

• BA 2015 accupack

• Mains cable

• Microphone (see „SK 2020-D bodypack transmitter“ on page 6)

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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 transmission 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�

SK 2020-D bodypack transmitter

You can connect one of the following Sennheiser microphones (to be ordered separately) to the bodypack transmitter:

• Clip-on microphones:

ME 2-II, ME 4, MKE 1-ew, MKE 2-EW Gold

• Headmics:

ME 3-II, HS 2-ew BK, HS 2-ew BE, SL Headmic 1 SB, SL Headmic 1 BK,

SL Headmic 1 BE

• Hand-held microphones with special connecting cable:

e 825 S, e 835, 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 microphone can be placed in the charging case and secured with Velcro tape�

HDE 2020-D-II and EK 2020-D-II 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-II 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�

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Overview of the system

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 accupacks�

• Safe storage and transportation of the system components�

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The L 2021-40 charger

The L 2021-40 charger can charge a total of 40 HDE 2020-D-II and/or EK 2020-D-II receivers with their built-in rechargeable batteries� The channel copy function lets you set all receivers to the same channel at the press of a button�

In addition, the charger allows you to directly conﬁgure the receivers via a PC� You can connect up to 125 chargers to a single PC, allowing you to simultaneously conﬁgure up to 5000 receivers�

Additional features of the charger:

• Quick charge of receiver rechargeable batteries�

• Highest possible operational reliability, since temperature and voltage of

the rechargeable batteries are monitored during charging�

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The operating controls

1



The operating controls

SK 2020-D bodypack transmitter

2

3

4

5

6

11

10

9

8

7

1 Line input 2 MUTE switch 3 Microphone input 4 Battery compartment cover 5 BA 2015 accupack 6 ON/OFF button 7 Red LED LOW BATT/MUTE 8 Yellow LED PEAK 9

rocker button

▲/▼



CH 03

LINE

MIC

16 15

13

14

10 SET button 11 Battery compartment 12 Antenna 13 Charging contacts 14 Battery compartment catches 15 LC display 16 Belt clip (on the back of the trans-

mitter)

1 Channel display 2 Lock mode icon 3 4-step battery status indication 4 MIC level display 5 LINE level display

12

13 14

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SKM 2020-D radio microphone

1 2 3 4 5 6

10

12



The operating controls

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1 Sound inlet basket 2 Body of radio microphone 3 Battery compartment (not

visible from outside)

4 Display section 5 LC display



6 Turnable protective cap for operating

controls (shown removed); the following operating controls become accessible in turn by turning the protective cap:

7 SET button 8

▼

9

▲

10 Operation/battery status indicator,

red LED (ON/LOW BATT)

11 ON/OFF button with ESC function

(cancel) in the operating menu

12 MUTE switch

1 Channel display 2 Lock mode icon

CH 03

3 4-step battery status indication 4 7-step audio level display “AF”

button button

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The operating controls

6

HDE 2020-D-II stethoset receiver

1

2

3

1 Earbows 2 Red/green LED for charge status 3 LC display 4 Volume control 5 Channel selection button 6 Charging contacts

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▲/▼

4

5

1 Channel display 2 4-step battery status display 3 Volume display 4 RF signal indication

6

EK 2020-D-II receiver

The operating controls

6

2

1 Volume control 2 Channel selection button 3 LC display 4 LED for charge status

5 ON/OFF button 6 Headphone socket

3

▲/▼

4

5



1

1 Channel display 2 4-step battery status display 3 Volume display 4 RF signal indication



6



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

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The operating controls

EZL 2020-20 L charging case

12345

13

12

11

6

7

10

1 Charging compartments for accu-

pack/bodypack transmitter

2 Red LED CHARGE/ERROR 3 Green LED READY 4 Storage place for radio micro-

phone

5 19 charging compartments for

receivers (slaves, light blue in the

diagram)

6 LED POWER

8

9

7 LED TEMP ERROR 8 LED COPY AVAILABLE 9 COPY button 10 Charging compartment with

channel copy function (master)

11 Air vents 12 IEC mains socket 13 Mains switch

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L 2021-40 charger

The operating controls

9 10

11

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8

1

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8

2

3

4

5

6

7

1 39 “slave” charging compart-

ments (light blue in the diagram)

2 “Master” charging compartment

(with channel copy function)

3 Green LED COPY AVAILABLE 4 COPY button 5 Yellow LED SELECT

6 Red LED POWER 7 Mains switch 8 Air vents 9 Network socket 10 Mains socket 11 Type plate

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The operating controls



Indications and displays on the bodypack transmitter

Operation and battery status indication

The red LED LOW BATT/MUTE 7 provides information on the current operating state of the bodypack transmitter:

7

Red LED off:

The bodypack 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

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

3 on the display panel provides

CH 03

LINE

MIC

AF peak indication

The yellow LED PEAK 8 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 bodypack transmitter’s line input“ on page 53 and „Changing the sensitivity of the bodypack transmitter’s microphone input“ on page 53)�

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The operating controls

3



8

MUTE display

The red LED LOW BATT/MUTE 7 lights up when the transmitter’s microphone input is muted (see „Muting the devices“ on page 51)�

1

7

Note: The muting function (MUTE) mutes the microphone input 3 only, not the line input 1�

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Lock mode icon

The lock mode icon 2 appears on the display when the lock mode is activated (see „Activating/deactivating the lock mode“ on page 57)�

CH 03

LINE

MIC

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 transmitter, it automatically switches back to normal operation and the display displays the selected channel

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�

The operating controls

10



Indications and displays on the radio microphone

Operation and battery status indication

The red LED LOW BATT/ON 10 provides information on the current operating state of the radio microphone:

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

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

3 on the display panel provides

CH 03

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The operating controls



Lock mode icon

The lock mode icon 2 appears on the display when the lock mode is activated (see „Activating/deactivating the lock mode“ on page 57)�

CH 03

Modulation display

The level display for audio signal “AF” 4 shows the modulation of the radio microphone�

CH 03

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When the radio microphone’s audio input level is excessively high, the level display for audio signal “AF”

overmodulation� You can change modulation by changing the input sensitivity of the radio microphone as described on page 43� (see „Adjusting the radio microphone’s input sensitivity“ on page 54)�

4 shows full deﬂection for the duration of the

MUTE display

When the radio microphone is muted, „MUTE“ 5 appears on the display (see „Muting the radio microphone“ on page 51)�

CH 03

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�

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The operating controls

6

2

Indications and displays on the receiver

RF signal indication

The RF signal indication 4 (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-II 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,

• the LED 4 of the EK 2020-D-II or

• the LED 2 of the HDE 2020-D-II provides information on the charge status of the receiver’s built-in recharge-

able battery�

4

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LED lights up red:

6

The built-in rechargeable battery is being charged�

The operating controls

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°C to 40°C)� The charging process is interrupted until the temperature is again within the admissible range�

LED lights up yellow/orange:

The built-in rechargeable battery is defective� Please contact your Sennheiser partner�

Volume display

The volume display 3 provides information on the current volume level�

Channel display

The channel display 1 provides information on the currently selected channel�

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Battery status display

The 4-step battery status display 2 provides information on the 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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The operating controls

8

Indications and displays on the charging case

Operation indication

The LED POWER 6 lights up as long as the mains supply is switched on�

6

7

Temperature indication

The LED TEMP ERROR 7 lights up if the temperature in the charging case gets too high and will remain on until the temperature drops to a safe level� All charging processes are interrupted until the temperature drops to a safe level�

LED indication for “automatic copying” function

The LED COPY AVAILABLE 8 lights up green when the “automatic copying” function is available� This happens

• when a switched-on receiver is placed into the charging compartment with

channel copy function (master) 10

• and at least one receiver is placed into one of the other receiver charging

compartments (slaves, light blue in the diagram) 5�

5

10

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The operating controls

1

The LED COPY AVAILABLE 8 goes off when the “automatic copying” function is not available� This happens

• when the receiver in the charging compartment with channel copy function

(master) 10 is switched off,

• or when the receiver is removed from the charging compartment with chan-

nel copy function (master) 10,

• or when all 19 charging compartments (slaves) 5 are empty�

LED indication for charging compartments for BA 2015 accupack/bodypack transmitter

3

2

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Each charging compartment for accupack/bodypack transmitter 1 as an LED

CHARGE/ERROR 2 and an LED READY 3, which indicate the following operat-

ing states:

No LED lit:

• The charging compartment for accupack/bodypack transmitter 1 is ready

for operation but empty�

• OR: A bodypack transmitter without accupack has been placed into the charging compartment�

Red LED CHARGE/ERROR 2 lit:

The accupack is being charged� A red ﬂashing LED for error indication, as with the L 2015 charger, is not available on the EZL 2020-20 L charging case�

Green LED READY 3 lit:

The accupack is fully charged and the charging case has switched to trickle charging�

Green LED READY 3 lights up brieﬂy and then goes off:

The bodypack transmitter is powered by standard batteries which cannot be recharged�

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The operating controls

7

Indications and displays on the charger

Operation indication

6

LED POWER 6 Meaning lights up red The mains switch 7 is in position „I“, the mains supply is

switched on�

is off The mains switch 7 is in position „0“, the mains supply is

switched off�

Status indication

5

LED SELECT 5 Meaning ﬂashes yellow You have just switched on the device (LED ﬂashes for a

maximum of 2 seconds) or an error has occurred�

lights up yellow

is off Neither the charger nor a receiver have been selected via

The charger is connected to a PC and the “Conference Control” software is running and has es-

tablished a network connection with the charger and you have selected the charger or at least one receiver

placed into the charger via the “Conference Control” software�

the “Conference Control” software�

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The operating controls

3

LED indication for “automatic copying” function

1

2

LED COPY

AVAILABLE 3

lights up green The “automatic copying” function is available (see below)� if off The “automatic copying” function is not available

When the “automatic copying” function is available, the green LED COPY

AVAILABLE 3 lights up� This is the case when:

• at switch-on of the charger, a receiver is already placed into the “master” charging compartment 2 or you place a receiver into the “master” charging compartment 2 or you switch on a receiver that is already placed into the “master” charging compartment 2 and

• at least one receiver is placed into one of the “slave” charging compartments 1 and

• no network connection exists�

When the “automatic copying” function is not available, the green LED COPY

AVAILABLE 3 goes off� This is the case when:

• you remove the receiver from the “master” charging compartment 2 or

• all “slave” charging compartments 1 are empty or

• the “Conference Control” software accesses the charger or

• you do not press the COPY button 4 within two minutes�

Meaning

(see below)�

4

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