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Wireless TV Listening System
Set840-TV
Instruction manual
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Contents
Contents
Safety instructions ................................................................. |
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Delivery includes ..................................................................... |
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Product overview .................................................................... |
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Putting the Set 840-TV system into operation ............... |
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Setting up the transmitter ............................................... |
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Connecting the transmitter to a sound source ............ |
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Connecting the transmitter to the mains ................... |
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Using the Set 840-TV system ............................................ |
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Switching the transmitter on/off ................................. |
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Switching the receiver on/off ........................................ |
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Adjusting the volume ...................................................... |
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Searching for a sound source ......................................... |
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Changing the transmission channel ............................. |
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Adjusting the balance ..................................................... |
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Switching between mono and stereo operation ........ |
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Individually enhancing the speech intelligibility ....... |
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Storing and charging the receiver ................................ |
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Charging a rechargeable battery in the |
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transmitter’s charging compartment .......................... |
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What if ... ................................................................................ |
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... this indicator lights up? .............................................. |
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... you press this button? ................................................ |
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... you change the position of this control/switch? ... |
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... you hear acoustic signals or warning signals? ....... |
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Cleaning the Set 840-TV system ....................................... |
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Cleaning the transmitter and the receiver .................. |
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Cleaning the ear pads ...................................................... |
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If a problem occurs ... ........................................................... |
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Additional technical information ...................................... |
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Accessories and spare parts ............................................... |
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Specifications ........................................................................ |
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Manufacturer Declarations ................................................. |
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Index ........................................................................................ |
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1
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 29),
–not operated near heat sources.
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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.
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Only charge rechargeable |
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Do not heat above |
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batteries with the |
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70°C/158°F, e.g. do |
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appropriate Sennheiser |
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not expose to sunlight |
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chargers. |
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or throw into a fire. |
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Return defective devices |
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When not using the |
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or exhausted recharge- |
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rechargeable battery for |
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able batteries to your |
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extended periods of time, |
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specialist dealer. |
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charge it regularly (every |
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6 months for about 1 hour). |
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Do not short-circuit. |
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Only charge rechargeable |
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batteries at ambient |
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temperatures between |
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10°C/50°F and 40°C/104°F. |
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Do not mutilate or |
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Do not charge the recharge- |
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dismantle. |
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able battery if the device is |
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obviously defective. |
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Store the devices/ |
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Do not expose to moisture. |
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rechargeable batteries in |
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a cool and dry place at |
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room temperature. |
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3
Delivery includes
Delivery includes
The Set 840-TV 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-TV system |
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1RR 840 stethoset receiver with BA 300 Lithium-Polymer rechargeable battery
1TR 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
1audio adapter
(3.5 mm to ¼” (6.3 mm) jack plug)
1audio adapter for RCA socket (e.g. TB/Aux-Out)
1 audio adapter for SCART socket
1 MKE 800 TV-N microphone
2 pairs of spare ear pads
1 instruction manual
1 installation manual
4
Product overview
Product overview
The overview pictures of the stethoset receiver and the transmitter can be found on the inside front cover of this instruction manual.
I Stethoset receiver
1Channel indicator
2Volume control
3Balance control
4Channel search button
5Battery compartment
IITransmitter
6Charging compartment for receiver
7Charging compartment for optional spare rechargeable battery
8Charging indicator for optional spare rechargeable battery 
9Charging indicator for receiver’s battery 
0 Operation indicator 
A“Speech intelligibility” button 
BIndicator for the selected speech intelligibility
CSocket (marked blue) for connection of sound source or external microphone
DST/MO slide switch (stereo/mono)
ETreble adjustment control
FChannel selector switch
GDC socket (marked yellow) for connection of mains unit
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Putting the Set 840-TV system into operation
Putting the Set 840-TV system into operation
Setting up the transmitter
Choose a suitable place near your sound source (e.g. TV).
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 stethoset receiver are in the same room, so you can move around freely in the home or outside in the garden.
When the stethoset 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 stethoset receivers on the same frequency.
6
Putting the Set 840-TV system into operation
Connecting the transmitter to a sound source
Switch your sound source (e.g. TV) off before connecting the transmitter.
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Plug one end of the connection cable I into the blue socket C of the transmitter.
Check the available connection possibilities of your sound source (e.g. TV):
Connection possibility Name of connection possibility
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Headphone socket |
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RCA socket |
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SCART socket |
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the EU version) |
What if your sound source doesn’t have any of these connection possibilities?
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MKE 800 TV-N external |
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microphone |
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(included with the US version) |
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Connect the transmitter as described in the corresponding chapter A , B , C or D .
If possible, use the SCART connection C .
SCART adapter and microphone are also available as accessories (see page 28).
7
Putting the Set 840-TV system into operation
AConnecting the transmitter to a headphone socket
Plug the other end of the
connection cable I into the |
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headphone |
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sound source. |
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Is the plug on the connection |
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cable too small for the head- |
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phone socket? |
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Plug the |
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(6.3 mm) jack socket J onto the connection cable I.
Adjust the volume of the headphone socket on your 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.
BConnecting the transmitter to an RCA socket
Plug the audio adapter for
RCA socket K onto the con- |
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nection cable I. |
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Connect the red connector of |
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the audio adapter Kto the red |
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RCA socket R of your |
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source. |
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Connect the white connector of the audio adapter K 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
Putting the Set 840-TV system into operation
C Connecting the transmitter to a SCART socket
Plug the SCART adapter L |
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onto the connection cable I. |
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Connect the SCART adapter L to the SCART socket on your TV.
If your TV has several SCART sockets, use the socket SCART output.
D 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?
Via the operating menu of your TV, check if the muting can be deactivated.
If the muting persists, use the optional MKE 800 TV-N microphone instead of the connection cable.
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