Page 1
Wireless TV Listening System
Set 840 S
Instruction manual
Page 2
I
E
II
5
1
2
3
R
4
7
5
6
C
D
8
9
B
0
A
F
G
H
I
Page 3
Contents
Contents
Safety instructions .................................................................... 2
Delivery includes ....................................................................... 4
Product overview ...................................................................... 5
Putting the Set 840 S system into operation ......................... 6
Setting up the transmitter ................................................... 6
Connecting the transmitter to a sound source ................... 7
Connecting the transmitter to the mains .......................... 11
Connecting the induction loop or headphones
for hearing aids to the receiver
Wearing the receiver .......................................................... 13
Using the Set 840 S system .................................................... 15
Switching the transmitter on/off ...................................... 15
Switching the receiver on/off ............................................ 16
Adjusting the volume ......................................................... 16
Searching for a sound source ............................................. 17
Changing the transmission channel .................................. 17
Adjusting the balance ........................................................ 18
Switching between mono and stereo operation ............... 18
Individually enhancing the speech intelligibility .............. 19
Storing and charging the receiver ..................................... 20
Charging a rechargeable battery in the transmitter’s
charging compartment
What if ... .................................................................................. 22
... this indicator lights up? .................................................. 22
... you press this button? .................................................... 23
... you change the position of this control/switch? ........... 23
... you hear acoustic signals or warning signals? .............. 24
Cleaning the Set 840 S system ............................................... 25
Cleaning the transmitter and the receiver ........................ 25
If a problem occurs ... .............................................................. 26
Additional technical information ........................................... 28
Accessories and spare parts ................................................... 30
Specifications ........................................................................... 32
Manufacturer Declarations ..................................................... 34
Index ......................................................................................... 36
....................................................... 21
.......................................... 12
1
Page 4
Safety instructions
Safety instructions
• Please read this instruction manual carefully and completely before
using the products.
• Make this instruction manual easily accessible to all users at all
times. Always include this instruction manual when passing the
products on to third parties.
• Do not use the products in situations which require special attention (e.g. when performing skilled jobs).
• Always keep the products dry and do not expose them to extreme
temperatures.
• Use the products with care and set them up in a clean, dust-free
environment.
•Varnish or furniture polish may degrade the feet of the transmitter,
which could stain your furniture. You should therefore place
the transmitter on a non-slip pad to avoid potential staining of
furniture.
• Always maintain a distance of at least 3.94“ (10 cm) between the
ear cups and the cardiac pacemaker or implanted defibrillator since
the product generates permanent magnetic fields.
• This stethoset receiver allows you to set higher volumes than
conventional headphones. This can cause hearing damage in
persons with healthy hearing and especially in children.
• 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.
• WARNING: To reduce the risk of fire or electric shock, do not expose
the products to rain or moisture.
• Use only the supplied mains unit.
• Disconnect the mains connector from the wall socket
– to completely disconnect the products from the mains,
– during lightning storms or when unused for long periods of time.
• Ensure that the mains unit is
– always readily operable and easily accessible,
– properly plugged into the wall socket,
– not covered or exposed to direct sunlight for longer periods of
time in order to prevent heat accumulation,
– only operated within the permissible temperature range (see
“Specifications” on page 32),
– not operated near heat sources.
2
Page 5
Safety instructions
Intended use
Intended use includes
• having read this instruction manual, especially the chapter “Safety
instructions” on page 2,
• using the products within the operating conditions and limitations
described in this instruction manual.
“Improper use” means using the products other than as described in
this instruction manual, or under operating conditions which differ
from those described herein.
Safety instructions for the Lithium-Polymer rechargeable battery
The BA 300 is a Lithium-Polymer rechargeable battery. If abused or
misused, this rechargeable battery may be damaged. Please understand that Sennheiser does not accept liability for damage arising from
abuse or misuse.
WARNING! In extreme cases, the rechargeable battery may even
present a
•heat hazard,
•fire hazard,
• explosion hazard,
•smoke and gas hazard.
Only charge rechargeable
batteries with the appropriate Sennheiser char-
Do not heat above 70°C/
158°F, e.g. do not expose to
sunlight or throw into a fire.
gers.
Return defective
devices or exhausted
rechargeable batteries to
your specialist dealer.
When not using the
rechargeable battery for
extended periods of time,
charge it regularly (every
6 months for about 1 hour).
Do not short-circuit. Only charge rechargeable
batteries at ambient
temperatures between
10°C/50°F and 40°C/104°F.
Do not mutilate or
dismantle.
Do not charge the rechargeable battery if the device is
obviously defective.
Store the devices/
Do not expose to moisture.
rechargeable batteries in
a cool and dry place at
room temperature.
3
Page 6
Delivery includes
Delivery includes
The Set 840 S system is available as an EU and a US version.
The following table shows which items are included with
the respective version.
Components of the Set 840 S system EU US
1 RR 840 S receiver with BA 300
Lithium-Polymer rechargeable battery
1 TR 840 transmitter with integrated
charging compartments
1 NT 9-3AW mains unit with
2 country adapters (EU, UK)
1 country adapter (US)
1 connection cable
with two 3.5 mm stereo jack plugs
for connection to a headphone socket
1 audio adapter
(3.5 mm to ¼” (6.3 mm) jack plug)
1 audio adapter for RCA socket
(e.g. TB/Aux-Out)
1 audio adapter for SCART socket
1 MKE 800 TV-N microphone
1 EZT 3011 induction loop
1 lanyard
1 clip for attaching the receiver
1 instruction manual
1 installation manual
4
Page 7
Product overview
I
II
Product overview
The overview pictures of the receiver and the transmitter
can be found on the inside front cover of this instruction
manual.
Receiver
1 Channel indicator
2 Volume control
3 On/off button
4 Balance control
5 Socket for headphones, induction loop or
connection cable to hearing aid
6 Channel search button
7 Battery compartment
R Induction loop
Transmitter
8 Charging compartment for receiver
9 Charging compartment for optional spare
rechargeable battery
0 Charging indicator for optional spare
rechargeable battery
A Charging indicator for receiver’s rechargeable
battery
B Operation indicator
C “Speech intelligibility” button
D Indicator for the selected speech intelligibility
E Socket (marked blue) for connection of sound
source or external microphone
F ST/MO slide switch (stereo/mono)
G Treble adjustment control
H Channel selector switch
I DC socket (marked yellow) for connection of
mains unit
5
Page 8
Putting the Set 840 S system into operation
Putting the Set 840 S system into
operation
Setting up the transmitter
왘 Choose a suitable place near your sound source (e.g. TV).
왘 Do not place the transmitter close to metal objects such
as shelf bars, reinforced concrete walls, etc. as this can
decrease the transmitter’s range.
It is not necessary that the transmitter and receiver are in
the same room, so you can move around freely in the home
or outside in the garden.
When the receiver leaves the range of the transmitter, it
produces warning signals and then automatically switches
off after 3 minutes.
One transmitter can be used to transmit to several
receivers on the same frequency.
6
Page 9
Putting the Set 840 S system into operation
ABCDC
Connecting the transmitter to a sound source
왘 Switch your sound source (e.g. TV) off before connecting
the transmitter.
E
왘 Plug one end of the connection cable J into the blue
J
socket E of the transmitter.
왘 Check the available connection possibilities of your
sound source (e.g. TV):
Connection possibility Name of connection possibility
A
B
Headphone socket
RCA socket
LR
C
SCART socket
(SCART adapter included with the
EU version)
What if your sound source doesn’t have any of these
connection possibilities?
D
MKE 800 TV-N external
microphone
(included with the US version)
왘 Connect the transmitter as described in the corre-
sponding chapter , , or .
If possible, use the SCART connection .
SCART adapter and microphone are also available as
accessories (see page 30).
7
Page 10
Putting the Set 840 S system into operation
A
B
J
L
Connecting the transmitter to a headphone socket
왘 Plug the other end of the
connection cable J into the
headphone socket on your
sound source.
K
J
Is the plug on the connection
cable too small for the head
-
phone socket?
왘 Plug the adapter to ¼”
(6.3 mm) jack socket
the connection cable
왘 Adjust the volume of the headphone socket on your
K
J.
onto
sound source to a medium level.
This improves the quality of wireless sound transmission. For detailed information, please refer to the
instruction manual of your sound source (e.g. TV).
With most TVs, the headphone socket is located at
the front or sides.
Connecting the transmitter to an RCA socket
왘 Plug the audio adapter for
RCA socket L onto the
connection cable J.
왘 Connect the red connector of
the audio adapter L to the
red RCA socket R of your
sound source.
왘 Connect the white connector
of the audio adapter L to the
white or black RCA socket L of
your sound source.
With most TVs, the RCA socket is located at the rear.
If your TV has several RCA sockets, use the socket
RCA output.
8
Page 11
Putting the Set 840 S system into operation
C
D
Connecting the transmitter to a SCART socket
왘 Plug the SCART adapter M
onto the connection cable J.
왘 Connect the SCART adapter M
J
M
to the SCART socket on
your TV.
If your TV has several SCART sockets, use the socket
SCART output.
Using the MKE 800 TV-N external microphone
What if your sound source doesn’t have any of the connections mentioned above? You can then use the optional
MKE 800 TV-N microphone.
What if your sound source mutes the external loudspeakers if you use one of the connections mentioned
above?
왘 Via the operating menu of your TV, check if the muting
can be deactivated.
왘 If the muting persists, use the optional MKE 800 TV-N
microphone instead of the connection cable.
E
9
Page 12
Putting the Set 840 S system into operation
To connect the MKE 800 TV-N microphone:
왘 If possible, adhere the supplied Velcro tape directly in
front of the loudspeaker of your TV.
왘 Press the microphone onto the Velcro tape.
왘 Connect the jack plug of the microphone to the blue
socket E of the transmitter.
You can change the sound by varying the position of
the microphone in front of the loudspeaker.
10
Page 13
Putting the Set 840 S system into operation
EU UK US
N
O
Connecting the transmitter to the mains
The EU and UK country adapters are included with the
EU version of the Set 840 S; the US country adapter is
included with the US version of the Set 840 S.
왘 Slide the supplied country
adapter O onto the mains
unit N.
왘 Connect the yellow connector
of the mains unit to the yellow
socket I of the transmitter.
왘 Plug the mains unit N into a
wall socket.
The operation indicator B
on the transmitter lights up
green.
When connecting the transmitter to the mains for
the first time, charge the rechargeable battery for
3 hours as described in the chapter “Storing and
3h
charging the receiver” on page 20.
If there is no audio signal from the sound source for
about 3 minutes, the transmitter automatically
switches off. The operation indicator B goes off.
To disconnect the transmitter from the mains, pull
out the mains connector from the wall socket.
When not using the transmitter for extended periods
of time (e.g. when you are on holiday), pull out the
mains connector from the wall socket. In this case,
however, the receiver’s rechargeable battery will not
be recharged.
I
N
11
Page 14
Putting the Set 840 S system into operation
E
Z
T
3
0
1
1
5
R
Connecting the induction loop or headphones for hearing aids to the receiver
The socket 5 of the receiver allows you to connect
• the supplied induction loop R,
• headphones or
• a connection cable to your hearing aid or to induction
couplers.
Connecting the induction loop
왘 Carefully remove the clip P from the receiver.
왘 Attach the clip of the induction loop as shown.
왘 Connect the induction loop R to the socket 5 of the
receiver.
왘 Set your hearing aid to position “T”.
If your hearing aid has no position “T”, please contact your
hearing aid acoustician.
For alternative connection possibilities to your
hearing aid as well as the connection to cochlea
implants, please contact your hearing aid acoustician.
12
Page 15
Putting the Set 840 S system into operation
Connecting headphones
5
왘 Connect the 3.5 mm jack plug of the headphones to the
socket 5 of the receiver.
Wearing the receiver
In order to wear the receiver, you can use the supplied
lanyard
The induction loop is suitable for users of hearing aids, the
lanyard and the clip are useful if you are using headphones
Q,
the clip
P
or the supplied induction loop
R.
.
Wearing the receiver around the neck
If you want to wear the receiver around your neck, use
• the supplied lanyard Q or
• the connected induction loop R (where applies).
To attach the lanyard Q:
왘 Connect the fasteners of the
Q
lanyard Q to the metal ring
at the rear of the receiver.
왘 Wear the receiver around your
neck, with the Sennheiser logo
facing away from your body.
13
Page 16
Putting the Set 840 S system into operation
Attaching the receiver to clothing or belt
If you want to attach the receiver to your clothing or belt,
use the attachment clip P.
To attach the receiver:
왘 Attach the clip P to your
clothing or belt.
To remove the receiver:
왘 Pull the clip P with the receiver
away from your clothing or belt.
P
14
Page 17
Using the Set 840 S system
Using the Set 840 S system
To switch the Set 840 S system on, proceed as follows:
Sequence of steps Page
1. Switch your sound source (e.g. TV) on. 15
2. Adjust the volume on the receiver to a low level. 16
3. Switch the receiver on. 16
4. Adjust the desired volume on the receiver. 16
5. If necessary, set a different channel on the
transmitter.
Switching the transmitter on/off
To switch the transmitter on:
왘 Switch your sound source on.
The transmitter automatically switches on. The operation indicator B lights up green.
If the transmitter doesn’t switch on:
왘 Read the corresponding chapter on page 26.
To switch the transmitter off:
왘 Switch your sound source off.
The transmitter automatically switches off after
3 minutes. The operation indicator B goes off.
17
15
Page 18
Using the Set 840 S system
Switching the receiver on/off
CAUTION! Hearing damage due to high volumes!
This receiver allows you to set higher volumes
than conventional devices. This can cause
hearing damage in persons with healthy
hearing and especially in children.
왘 Before using the receiver, set the volume on
the receiver to a low level.
왘 Do not continuously expose yourself to
high volumes.
To switch the receiver on:
왘 Keep the on/off button 3
1
pressed until the channel indicator 1 lights up.
The channel indicator 1 goes off
3
after 30 seconds.
To switch the receiver off:
왘 Keep the on/off button 3 pressed until the channel
indicator 1 goes off.
If you are not within the range of the transmitter, the
receiver automatically switches off after 3 minutes.
Adjusting the volume
왘 Use the volume control
adjust the volume to a sufficient and comfortable level.
2 to
16
Page 19
Using the Set 840 S system
Searching for a sound source
왘 Switch the receiver on.
The receiver automatically searches for one of the
3 channels of the transmitter and starts the channel
search on the last selected channel. If a channel is found,
the channel search stops.
Your hear the sound of the sound source found.
Depending on the channel found, the receiver produces
1, 2 or 3 beeps (see page 24) and the channel
indicator 1 on the receiver lights up as follows:
The channel indicator 1 goes off after 30 seconds so
that the light won’t disturb you in a dark room.
What if you don’t hear the desired sound source?
The channel search has possibly found another sound
source (e.g. from another nearby system).
To continue the channel search:
왘 Press the channel search
6
button 6 on the receiver repeatedly until you have found your
sound source.
If you still cannot find your sound source:
왘 Change the transmission channel as described in the
next chapter.
왘 Read the chapter “If a problem occurs ...” on page 26.
Changing the transmission channel
If several transmitters are operated simultaneously and are
very close to one another, reception can be subject to interference (e.g. hissing noise).
17
Page 20
Using the Set 840 S system
H
F
왘 Change, if necessary several
times, the position of the
channel selector switch H on
the transmitter to change to
an interference-free channel.
You can choose between 3
channels.
왘 Press the channel search button 6 on the receiver to
re-start the channel search.
If reception is still subject to interference:
왘 Read the chapter “If a problem occurs ...” on page 26.
Adjusting the balance
The balance control allows for right/left
4
volume adjustment. Adjust the balance
so that you hear equally well with both
ears.
왘 Turn the balance control 4 to the
left L or right R in order to increase
the volume for the corresponding
ear.
Switching between mono and stereo operation
If, despite a correct balance adjustment, you can hear the
sound only with one ear:
왘 Set the ST/MO switch F
on the transmitter to MO
(mono).
18
Page 21
Using the Set 840 S system
D
C
Meaning of the terms “mono” and “stereo”
Stereo (ST) Mono (MO)
LR
L + R
Example: L: Speech from the left
R: Music from the right
You hear speech from the
left and music from the
You hear speech and music
coming from the front.
right.
Individually enhancing the speech intelligibility
The “speech intelligibility”
button C allows you to adjust
the sound to your individual
needs.
Try out which setting works best
for you.
왘 Press the “speech intelligibility” button C repeatedly
until the sound is optimally adjusted to your needs.
Press the
button 1 x 2 x 3 x 4 x
Indicator D is
lit yellow
Setting 1 2 3 Default setting
If necessary, you can have the speech intelligibility fine
adjusted to your hearing ability (see page 28).
19
Page 22
Using the Set 840 S system
Storing and charging the receiver
왘 After use, place the receiver
into the transmitter’s charging compartment 8 without
exerting too much pressure.
The receiver automatically
switches off.
B
A
The Sennheiser logo can face the operation indicator B
or away from it.
When the receiver is placed correctly into the charging
compartment, the indicator A lights up:
red: The battery is being charged.
green: The battery is fully charged.
With a fully charged battery, the operating time is up
to 9 hours.
8
The transmitter remains switched on during
charging. If you have a second receiver, it can be used
with the transmitter while the discharged first
receiver is being charged.
Always store the receiver in the transmitter’s
charging compartment 8 to ensure that it is fully
charged. The intelligent battery charging technology
prevents overcharging.
20
Page 23
Using the Set 840 S system
9
0
Charging a rechargeable battery in the transmitter’s charging compartment
You can charge the receiver’s rechargeable battery or a
spare BA 300 rechargeable battery (not included in the
delivery of the Set 840 S) in the charging compartment 9
at the side of the transmitter.
The spare battery offers extended listening time while the
discharged first battery is being recharged.
Before using the spare rechargeable battery for the
first time, charge it for at least 3 hours.
Removing and charging the receiver’s battery
To remove the receiver’s battery:
왘 Pull the battery out of the
receiver’s battery compartment 7.
7
왘 Insert the receiver’s battery
into the charging compartment 9 at the side of the
transmitter as shown.
When the battery is inserted correctly, the indicator 0
lights up:
red: The battery is being charged.
The charging time is approx. 3 hours.
green: The battery is fully charged.
왘 Insert the battery into the
receiver as shown.
왘 Slide the battery into the
battery compartment 7 as
far as it will go.
7
21
Page 24
What if ...
What if ...
... this indicator lights up?
Indicator Status Meaning
Channel
indicator 1
on the receiver
Operation
indicator B
on the transmitter
Charging
indicator A
lit yellow The receiver has just
been switched on or a
button has just been
pressed
flashes The distance between
receiver and transmitter
is too great.
The receiver switches
off after 3 minutes.
off The receiver is switched
on for more than
30 secs. and no button
has been pressed.
The receiver is switched
off.
lit green The transmitter is
switched on.
off The transmitter is
switched off.
lit red The rechargeable
battery is being
charged.
.
Charging
indicator 0
“Speech intelligibility” indicator D on the
transmitter
22
lit green The rechargeable
battery is fully charged.
lit yellow The speech intelligibility
enhancement is
switched on.
off The speech intelligibility
enhancement is
switched off.
Page 25
What if ...
... you press this button?
Button Function Page
Channel search
button 6 on the
Searches for the sound
source or a different channel
17
receiver
“Speech
intelligibility”
button C
on the transmitter
Selects one of the possible
settings in order to individually enhance the speech
intelligibility
19
... you change the position of this control/switch?
Control/switch Function Page
Volume control 2
on the receiver
Balance control 4
on the receiver
Channel selector
switch H on the
transmitter
ST/MO switch F
on the transmitter
Reduces or increases the
volume of the receiver
Increases the volume for the
left or the right ear
Selects a different transmission channel
Sets the transmitter to
mono or stereo operation
16
18
17
18
Treble adjustment
control G on the
transmitter
Treble adjustment is only to
be made by a hearing aid
technician / an expert
28
23
Page 26
What if ...
... you hear acoustic signals or warning signals?
Acoustic signal Meaning
3 ascending beeps
The receiver has just
been switched on.
3
descending beeps
The receiver has just
been switched off.
1 acknowledgement
beep
The channel search
button has been
pressed once briefly
The channel search
button has been
pressed for
5 seconds
1
–3
short beeps
The receiver is set to
channel 1, 2 or 3
Warning signal Meaning
6 short
beeps
The receiver does not
receive any signal
from the transmitter:
.
.
.
24
2 long
beeps
• The distance
between transmitter and receiver
is too great.
The receiver
switches off after
3 minutes.
• The transmitter is
switched off.
The rechargeable
battery is almost flat.
Page 27
Cleaning the Set 840 S system
To switch the acoustic signals on and off:
왘 Press the channel search
6
button 6 on the receiver for
approx. 5 seconds.
You hear a short acoustic
signal.
Warning signals cannot be switched off.
Cleaning the Set 840 S system
Cleaning the transmitter and the receiver
CAUTION! Danger of electric shock and damage to the
device electronics!
Liquids entering the housing of the devices
can cause a short-circuit and damage the
electronics.
왘 Keep all liquids far away from the devices.
왘 Do not use any cleansing agents or
solvents.
왘 Before cleaning, disconnect the transmitter from the
mains.
왘 Use only a slightly damp cloth to clean the devices.
25
Page 28
If a problem occurs ...
If a problem occurs ...
The transmitter does not switch on
Possible cause Solution
Is the mains unit
connected correctly?
Is the sound source
switched on?
Is the volume of
the sound source
sufficient?
You cannot hear anything
Possible cause Solution
Is the transmitter
placed close to
metal objects?
Are all connectors
connected correctly?
Is the operation
indicator B lit?
Check the connection of the mains
unit to the transmitter and to the
mains (see page 11).
Switch your sound source on.
Set the volume on your sound
source to a medium level.
Choose a different place for the
transmitter.
Make sure that the transmitter is
not placed close to metal objects.
Check the connection between the
transmitter and your sound source
(see page 7).
Check if the transmitter is switched
on (see page 15).
Is the volume of
the sound source
sufficient?
Is the volume of the
receiver sufficient?
Is the rechargeable
battery inserted
properly into the
receiver and fully
charged?
26
Set the volume on your sound
source to a medium level.
Increase the volume by turning the
volume control 2 (see page 16).
Remove the rechargeable battery
and reinsert it into the receiver.
If this doesn’t help: recharge
the rechargeable battery
(see page 20).
Page 29
You hear the sound only with one ear
Possible cause Solution
If a problem occurs ...
Is the balance
adjusted correctly?
Is the transmitter
set to mono?
Turn the balance control 4 to the
left or right (see page 18).
Set the ST/MO switch F on the
transmitter to mono (MO)
(see page 18).
The sound of your sound source is hardly intelligible
Possible cause Solution
Is the speech intelligibility enhancement out of adjustment?
Press the “speech intelligibility”
button C on the transmitter
repeatedly until the sound is
optimally adjusted to your needs
(see page 19).
Is there another
transmitter oper-
Change the transmission channel
(see page 17).
ating in the proximity?
Is the receiver still
within the trans-
Move the receiver closer to the
transmitter.
mitter’s range?
The loudspeakers of your TV are muted
Possible cause Solution
Some TVs have a
function that mutes
the loudspeakers
when you connect a
transmitter
Via the operating menu of your TV,
check if and how the muting can be
deactivated.
Use a different audio socket on
your TV or use the MKE 800 TV-N
external microphone.
If a problem occurs that is not listed in the above tables or if
the problem cannot be solved with the proposed solutions,
please contact your Sennheiser partner for assistance.
27
Page 30
Additional technical information
Additional technical information
Fine adjusting the speech intelligibility
The speech intelligibility can be enhanced individually on the transmitter (see page 19).
There are the following settings:
Setting
Default
setting
1 Compression
2 Treble boost
3 Compression and treble boost
Compression (settings 1 and 3)
Deterioration of the ability to hear quiet sounds as well as loud ones is
a typical symptom of old age. Compression compensates for these
volume differences by boosting the volume of quiet sounds and
reducing the volume of loud sounds if necessary.
Compression seems to put the speech in the foreground, making it
easier to understand.
Compression is self-regulating; once it has been activated, it is not
necessary to make any other settings.
Indicator D lit
yellow
Fine adjustment
No fine adjustment made
Treble boost (settings 2 and 3)
Another typical age-related phenomenon is the deterioration of the
hearing with regard to high frequencies. However, high frequencies are
important for the intelligibility of speech.
The treble boost makes the speech clearer and easier to understand.
With the treble boost (settings 2 and 3), additional fine adjustment is
possible using the treble boost control
28
G at the rear of the transmitter.
Page 31
Additional technical information
G
왘 Use a screwdriver to turn the treble
boost control
G to the left or right
until the sound can be heard very
well.
The position “0” corresponds to a
minimum boost, the position “MAX”
corresponds to a maximum boost, and
the control is factory-preset to the
medium position.
Function of the treble boost control
By means of the transmitter’s steplessly adjustable treble boost
control
The treble boost control
G, the audio signal is boosted as shown in the diagram.
G allows you to select one of the curves
shown in the diagram below.
dB
20
10
0.1 1 10
“MAX”
Factory preset
“0”
kHz
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Accessories and spare parts
Accessories and spare parts
CAUTION! Danger of damage to the device!
Components from other manufacturers (e.g.
for power supply or rechargeable battery)
may cause damage to the device and will
invalidate the warranty.
왘 Use only original Sennheiser accessories
and spare parts.
For the Set 840 S, the following receivers and stethoset
receivers are available from your specialist dealer:
Cat. No. Accessory/spare part
EU version
502026 RR 840 S receiver
502025 RR 840 stethoset receiver
US version
502014 RR 840 S receiver
502027 RR 840 stethoset receiver
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Accessories and spare parts
The following Set 840 S accessories are available from your
specialist dealer:
Cat. No. Accessory/spare part
500898 BA 300 spare rechargeable battery
502566 EZT 3011 induction loop
504061 EZT 3012 induction loop
003448 EZI 120 induction couplers
528185 Lanyard
528184 Clip for attaching the receiver
517627 Extension cable, 3 m (3.5 stereo jack plug)
500974 MKE 800 TV-N external microphone (mono)
502710 L 300 10-10 charger
HZL connection cables
001676 HZL 30-6
(3.5 mm jack plug to 1 mini-plug, 40 cm)
004658 HZL 30-600
(3.5 mm jack plug to 1 mini-plug, 60 cm)
001678 HZL 32-6
(3.5 mm jack plug to 2 mini-plugs, 40 cm)
004657 HZL 32-600
(3.5 mm jack plug to 2 mini-plugs, 60 cm)
002408 HZL 34-6E
(3.5 mm jack plug to 1 Euro plug, 40 cm)
004652 HZL 34-600E
(3.5 mm jack plug to 1 Euro plug, 60 cm)
002409 HZL 36-6E
(3.5 mm jack plug to 2 Euro plugs, 40 cm)
004653 HZL 36-600E
(3.5 mm jack plug to 2 Euro plugs, 60 cm)
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Specifications
Specifications
System
Modulation FM, stereo
Carrier frequencies
EU version
US version
Frequency response 50 Hz–16,000 Hz
THD < 1%
Charging time for
rechargeable battery approx. 3 hours
Signal-to-noise ratio
(1 mV, peak deviation) typ. 70 dB (A)
Operating temperature 10°C to 40°C
Transmitter
RF radiated power
EU version
US version
Range
EU version
US version
Audio/microphone
connection
Power supply 9 V
Max. power consump-
tion (transmitter in
conjunction with the
NT 9-3AW mains unit)
Max. current
consumption
EU version
US version
Standby consumption approx. 0.5 W
Weight approx. 260 g
Dimensions approx. 112 x 146 x 58 mm
863.3/864.0/864.7 MHz
925.95/926.8/927.5 MHz
max. 10 mW (EIRP)
max. 50 mV/m
(at a distance of 3 m)
up to 100 m
up to 100 ft
3.5 mm stereo jack socket
2.4 W (incl. battery and receiver
charging and with switched-on
transmitter)
80 mA (w/o battery charging)
70 mA (w/o battery charging)
(w/o battery charging)
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Specifications
Receiver
Audio connection 3.5 mm stereo jack socket
Power supply via BA 300 rechargeable Li-Pol
battery (3.7 V / 150 mAh)
Operating time up to 9 hours
Weight approx. 50 g (with BA 300)
Dimensions approx. 70 x 60 x 26 mm
NT 9-3AW mains unit
Nominal input voltage 100 V~ to 240 V~
Mains frequency 50–60 Hz
Nominal output voltage 9 V DC
Nominal output current 300 mA
Ambient temperature +5°C to +40°C
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Specifications
In compliance with
Europe: EMC EN 301489-1/-9
Radio EN 301357-1/-2
Safety EN 60065
The devices can be operated license-free in most countries
of the European Union.
Approved by
Canada: Industry Canada RSS 210
IC: 2099A-840
USA: FCC 47 CFR Part 15C
FCC-ID: DMOSET840
Transmitters that operate in the 863 – 865 MHz frequency
range can be used licence-free in the following countries:
AT, BA, BE, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS,
IT, LI, LT, LU, LV, ME, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK,
TR, UA.
The NT 9-3AW mains unit is certified in accordance with the
legal safety requirements of Europe, the United States,
Canada, China and Russia.
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Page 37
Manufacturer Declarations
Manufacturer Declarations
Warranty
Sennheiser electronic GmbH & Co. KG gives a warranty of
24 months on this product.
For the current warranty conditions, please visit our
website at www.sennheiser.com or contact your Sennheiser partner.
FOR AUSTRALIA ONLY
Sennheiser’s goods come with guarantees that cannot be
excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and
compensation for any other reasonably foreseeable loss or
damage. You are also entitled to have the goods repaired or
replaced if the goods fail to be of acceptable quality and the
failure does not amount to a major failure.
This warranty is in addition to other rights or remedies
under law. Nothing in this warranty excludes, limits or
modifies any liability of Sennheiser which is imposed by
law, or limits or modifies any remedy available to the
consumer which is granted by law.
To make a claim under this warranty, contact Sennheiser
Australia Pty Ltd, Unit 3, 31 Gibbes Street, Chatswood NSW
2067, Australia; Phone: (02) 9910 6700,
email: [email protected].
All expenses of claiming the warranty will be borne by the
person making the claim.
The Sennheiser International Warranty is provided by
Sennheiser Australia Pty Ltd (ABN 68 165 388 312), Unit 3,
31 Gibbes Street, Chatswood NSW 2067, Australia.
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Page 38
Manufacturer Declarations
In compliance with the following requirements
• WEEE Directive (2012/19/EU)
Please dispose of the devices at the end of their
operational lifetime by taking them to your local
collection point or recycling center for such
equipment.
• Battery Directive (2006/66/EC)
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.
CE Declaration of Conformity
•
0682
• R&TTE Directive (1999/5/EC)
• EMC Directive (2004/108/EC)
• Low Voltage Directive (2006/95/EC)
• RoHS Directive (2011/65/EU)
The declaration is available at www.sennheiser.com.
Before putting the devices into operation, please observe
the respective country-specific regulations.
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Page 39
Manufacturer Declarations
Statements regarding FCC and Industry Canada
This equipment complies with Part 15 of the FCC Rules and
with RSS-210 of Industry Canada. Operation is subject to
the following two conditions: (1) this equipment may not
cause harmful interference, and (2) this equipment must
accept any interference received, including interference
that may cause undesired operation.
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:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and
receiver.
• Connect the equipment into an outlet on a circuit
different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician
for help.
This class B digital equipment complies with the Canadian
ICES-003.
Changes or modifications made to this equipment not
expressly approved by Sennheiser electronic Corp. may
void the FCC authorization to operate this equipment.
Before putting the equipment into operation, please
observe the respective country-specific regulations!
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Index
Index
Receiver
Adjusting the balance 18
Adjusting the volume 16
Attaching the receiver to clothing 14
Automatic channel search 17
Channel indicator (meaning) 22
Cleaning 25
No sound signal 26
Operating elements 5
Operating time 20
Reception is subject to interference 17
Searching for a sound source 17
Sound is hardly intelligible 27
Sound is only audible with one ear 27
Storing and charging the receiver 20
Switching the acoustic signals off 25
Switching the receiver on/off 16
Rechargeable battery
Replacing and charging the rechargeable battery 21
Special functions
Fine adjusting the speech intelligibility 28
Treble boost control 29
Terms
Compression/treble boost 28
Mono/stereo 19
Transmitter
Changing the channel 17
Cleaning 25
Connection to a headphone socket 8
Connection to a SCART socket 9
Connection to a sound source 7
Connection to an RCA socket 8
Connection to the mains 11
Enhancing the speech intelligibility 19
Installation 6
Operating elements 5
Operation indicator (meaning) 22
Switching between mono and stereo operation 18
Switching the transmitter on/off 15
Troubleshooting 26
Using the MKE 800 TV-N external microphone 9
Versions
EU version 4
US version 4
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Page 41
Sennheiser electronic GmbH & Co. KG Printed in China
Am Labor 1, 30900 Wedemark, Germany Publ. 09/13
www.sennheiser.com 528281/A03
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