Univox TV-200 User manual

UniVox®TV-200
1
UniVox®TV-200
Environmental friendly loop amplier
for at screen TV, with built-in TV-sync
Installation Guide
UniVox®TV-200 (Part No 212011)
Thank you for choosing a UniVox®TV-200 from Bo EDIN AB. We hope that
you will be satised with the product. We recommend reading through the
complete Installation guide before installing and using the product.
UniVox® TV-200 is a whole new generation of loop ampliers for wireless
listening through hearing aids (in T position) with new features necessary
for connection to modern TV’s. Correction of time delay between sound
and picture (TV Sync) and built-in automatic Scart control are some of the
features that enables and facilitates the use together with modern at screen
plasma and LCD TV’s.

UniVox®TV-200
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Content Page
Introduction ....................................................................................3
Overview ....................................................................................3
For the user ....................................................................................4
Description of indicators.............................................................4
Function control..........................................................................4
Error examples............................................................................4
Mounting and placing ......................................................................5
Important! ...................................................................................5
Preparatory connections...................................................................5
Default settings ................................................................................5
Special settings for TV.....................................................................6
Detection system in the loop............................................................6
General advice for planning.............................................................6
Technical description.......................................................................7
Electrical power ..........................................................................7
Coverage area .............................................................................7
Loop output.................................................................................7
Inputs ....................................................................................7
Indication ....................................................................................8
Metal loss correction/treble control ............................................8
Loop current................................................................................8
Indicators ....................................................................................8
Security and warranty ......................................................................8
Maintenance and care ......................................................................8
Trouble shooting guide ....................................................................8
Service ....................................................................................9
Technical data .................................................................................9
Accessories ....................................................................................9
Recycling directives / Environment ................................................9
Measuring and control instruments................................................10
Screw hole distances for wall mounting ........................................11

UniVox®TV-200
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Introduction
UniVox® TV-200 is a professional loop amplier that enhances the speech
intelligibility when listening through the T-coils in your hearing aids.
With new components and a new construction the environmental strain has
been reduced substantially (half the weight, reduced copper by 90% and
lower power consumption).
All UniVox® ampliers produce a very large output current to full and
exceed the requirements according to the international standard IEC 60118-4.
To ensure high quality all products undergo carefully testing procedures.
Overview
12-24V DC
110-240V AC Loop
UniVox TV-200
www.edin.se
(scart) (scart) TV Sync
TV Ext
3. Blue LED
1. Yellow LED
2. Loop wire connection
4. Green LED
Loop
+24V DC
Indication
5-24V AC/DC
Power
In 1
In 2
In 3
In Mic
Loop

UniVox®TV-200
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For the user
UniVox® TV-200 is adjusted by a technician and no maintenance is normally
needed. Don’t try to adjust the amplier yourself as this might make trouble
shooting more difcult.
Description of indicators
Yellow LED (1.) indicates that the amplier is turned on.
Green LED (2.) indicates that the amplier is turned on and is connected to a
signal source (TV, DVD, radio etc.).
Blue LED (3.) indicates that the amplier is transmitting sound to hearing
aids, i.e. is only lit when someone is speaking or other sound is being
transmitted.
Function control
1. Check that the amplier is turned on (yellow LED lit). Carry on to step 2.
If not, check that the power cord is correctly connected to the amplier
and to mains.
2. Input signal has to be properly connected (green LED In shall be lit).
Carry on to step 3.
If not, check that the cables between the amplier and the signal source/s
(TV, DVD, radio etc.) are correctly connected.
3. Blue LED is lit whenever the amplier is transmitting the sound to the
hearing aid. This shows that the system is working correctly.
If you don’t hear anything in your hearing aid, check that the hearing aid
works and is set in T position.
Error examples
You don’t hear anything through your hearing aids:
1. If the blue LED (3.) Loop is lit, the hearing aid is not working right.
Remedy: Check the hearing aid batteries and that the hearing aid is set in
T position.
2. If the blue LED (3.) Loop is not lit, check that the loop wires (4.) Loop
is properly connected.
If the green LED is not lit, there is no contact with any input signal
source (TV, DVD, radio etc.). Perform a function control as described
above.

UniVox®TV-200
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Mounting and placing
UniVox® TV-200 is either wall-mounted, see screw holes on the bottom
(page 10), or placed on a at and stable surface. The wire between the loop
guration and the loop amplier should not exceed 10 meters and the wires
should be paired or twisted.
Important!
The amplier normally runs hot during use and needs free space for cooling
through the top and bottom. To avoid possible re or discolour, the amplier
must be kept at a distance from fragile and easily ammable materials.
Preparatory connections
1. Connect the loop wire to the amplier’s connector terminal marked
Loop.
2. Connect a suitable input signal source.
3. Connect the amplier to mains or a 12-24V DC power source. Yellow
LED is lit.
Default settings
1. Check that there is an input signal (green LED In is lit).
2. Adjust the microphone sensitivity (see drawing) so that the green LED In
is lit during program peaks.
3. Adjust the magnetic eld strength by turning the control knob Loop so
that program peaks occasionally reach 400mA/m. Use only UniVox®
FSM eld strength meter with RMS measurement and 125ms integration
time. Check the sound quality with the loop receiver UniVox® Listener.
In certain cases it might be suitable to increase the treble. The treble
control can be found inside the TV-200 (the only control knob inside).
When increasing the treble there is an increased risk of self-oscillation
and distortion.

UniVox®TV-200
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Detection system in the loop
The acoustical detection system can be connected in two ways:
1. Door bell with power switch
2. External triggering voltage 5-24V AC/DC
The acoustical indication mufes the sound in the loop and starts a wide
banded harmonic sound that cover most of the frequency non-linear hearing
impairments. See the installation guide on the amplier.
General advice for planning
● Plan for a 2x1.5mm² paired wire. First try to connect as a 2-turn loop. If
the desired eld strength is not reached, parallel the two wires thereby
creating a 1-turn loop. As an alternative a at copper foil can be used if
the room to install a standard round wire is limited.
● Normally reinforced rooms can reduce the coverage area by about 50%.
● Never put analogue input cables close/parallel to the loop wire.
● Avoid dynamic microphones to reduce the risk of magnetically feedback.
● Avoid putting the loop wire close to/on metal constructions or
reinforcing structures. This might reduce the eld strength substantially.
Special settings for TV
● LCD/Plasma TV’s usually have well working RCA/phono connectors.
Connect to In 3.
● SCART: First always check that the present SCART system works,
i.e. the TV changes picture automatically when an external unit (DVD
etc.) is turned on. Remove the existing SCART cable from the TV and
connect it to the output Ext on the TV-200. Connect a new SCART cable
between the SCART output on the TV and the SCART input TV on the
TV-200.
● Sound adjustment/TV sync: Modern at screen TV’s often have a time
difference (sound delay) between the sound from external units and
the sound from the TV. Use the TV sync adjustment potentiometer to
achieve the best sound (no echo effects).

UniVox®TV-200
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● If the smallest side of the looped area is larger than 10 metres, another
loop guration should be used, for example a gure eight or SLS
solution.
● Is the overspill outside of the loop acceptable? If not, plan for a
UniVox® SLS system with heavily reduced overspill.
● Plan all other electrical equipment in order not to create disturbing
magnetic elds.
● Do not put the loop wire close to a stage area to avoid feedback from
electric instruments and dynamic microphones.
● Always measure and certify the loop installation with UniVox® FSM
eld strength meter according to the IEC 60118-4 standard.
You can ll out a UniVox® Certicate for induction loops (pdf) by
downloading the form at www.edin.se, see Measuring/Control, Standard for
measurement of induction loops – IEC 60118-4.
Technical description
Electrical power
Built-in switched power supply 110-240V AC.
12-24V DC as primary power supply or backup. Connection to 12V DC will
reduce the effect.
Coverage area
170m2 room loop according to IEC 60118-4:2006.
Loop output
Screw terminal
Inputs
Mic 3.5mm, 2-250mV/5kΩ (built-in phantom power)
TV/Ext SCART, 35mV-10V/5kΩ
In 1 screw terminal, 35mV-10V/5kΩ
In 2 screw terminal, 35mV-10V/5kΩ
In 3 RCA, 35mV/5kΩ

UniVox®TV-200
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Indication
External door bell/telephone signal or trigger voltage can activate the built-in
indication system with tone generator in the loop.
Metal loss correction/treble control
0 - +18dB for correction of high frequency drop due to metal, screw driver
control.
Loop current
Loop Screw driver control on the side.
Indicators
Power connection Yellow LED
Loop current Blue LED
Input signal Green LED
Security and warranty
Basic knowledge in audio and video installation techniques is required to
achieve existing regulations.
The installer/planner is responsible for the installation hereby avoiding any
risk or cause of re.
Please also note that warranty is not valid for any damage or defects on the
product due to incorrect or incautious installation.
Maintenance and care
Under normal circumstances UniVox® loop ampliers do not need any
special maintenance. Should the unit become dirty, wipe the unit with a
slightly damp cloth. Do not use solvent or heavy cleaning agents.
Trouble shooting guide
Verify the control LED’s following the instructions in this installation guide.
Use UniVox® Listener to check the sound quality and basic level of the loop.

UniVox®TV-200
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Service
Should the system not work after having made the product test as described
above, please contact the local distributor of the product for further
instructions. If the product should be sent to Bo EDIN AB, please enclose a
lled Service Form, see www.edin.se, Support.
Technical data
For additional information, please refer to product data sheet/brochure and
CE certicate which can be downloaded from “Product databank” at
www.edin.se. If required, spare part lists or other technical documents can be
ordered through [email protected].
Recycling directives / Environment
When this product is nished with, please follow existing disposal
regulations. Thus if you respect these instructions you ensure human health
and environmental protection.
Accessories
Part No Description
281015 Audio cable, 3.5mm male to 2 RCA male, 1.5m wire
242401 13A, Electret microphone with velcro, 3.5mm male, 1.8m wire
Loop signs, boundary and wireless microphones are available as accessories.

UniVox®TV-200
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Measuring and control instruments
UniVox®Listener
Loop receiver for quick and
easy sound quality test and
check of the level in the loop.
UniVox® FSM 2.0, eld strength meter
Professional instrument for measurement
and control of induction loop systems
according to IEC 60118-4.