Comfort audio Comfort Digisystem DH10 User manual

Comfort Digisystem User Manual
Receiver
DH10
English

2Receiver DH10
User manual
Table of contents Page
Introduction to the Comfort Digisystem 3
Functions of the Receiver DH10 4
Getting started 5
First time use 6
Menu and settings 8
More functions 13
Radio range and channels 14
Attached accessories 15
Other original accessories 15
Trouble shooting 16
Service and warranty 17
Technical data 17
Important safety instructions 18

3
Receiver DH10
Introduction to the Comfort Digisystem
Thank you for choosing Comfort Digisystem.
The products are easy to use, whether you use a hearing aid or not.
Before using the product, please read this User manual carefully.
With the Receiver DH10 receiver, the signal is received digitally, resulting in
an excellent clear sound.
Comfort Digisystem is tted with SecureStream Technology – a unique,
patented digital technology allowing eavesdrop-secure radio transfer in real
time.

4Receiver DH10
Functions of the Receiver DH10
Volume button +
Volume button -
Function indicator
Pairing button
Socket for headphones/earphones
Menu control
On / Off
Charging socket
Display indicating
active neckloop
Display indicating connected
headphones/earphones
Socket for neckloop

5
Receiver DH10
Getting started
Charging
The Receiver DH10 is chargeable. Charge the DH10 at least two hours be-
fore you use it for the rst time. An empty battery is fully charged within two
hours.
During charging, the function indicator shows red and a lightning bolt appears
through the battery symbol in the display. Once the battery symbol is lled
with green columns and the functions indicator shows green the unit is fully
charged and switches to automatic oat charging.
A fully charged battery has an operating time of up to ten hours. Battery
lifetime is up to ve years. You must not change the battery yourself; please
contact your point of purchase.
Please note:
Only use the charger
supplied by Comfort Audio AB.
Connecting a charger to
the Receiver DH10

6Receiver DH10
First Time Use
Switch on the Receiver by pressing the On/Off button for around two seconds.
Connect the neckloop or earphones/headphones in combination with the
neckloop. The neckloop is then disconnected and acts as a necklace (it can be
removed if you want).
Connect neck loop carefully.
The contacts have to be pressed in straightly.
Press in the contacts to the end. Check that the neck loop is connected rmly.
When putting on/taking off the receiver connected to the neck loop, be careful
that the contacts do not break off.





7
Receiver DH10
Listen to the microphone in the transmitter.
(Please note: Start listening at low volume). Too loud a sound may damage
your hearing.
Adjust the volume with the volume buttons.
If you listen with a neckloop and a hearing aid, set the hearing aid to the T or
MT position.
Other functions are explained later in this manual.
With neckloop With neckloop and earphones

8Receiver DH10
Scroll up
Press/select
Scroll down
Back
Communication
Channel
Pair
Sound
Balance
Max volume
Fix volume
Settings
PIN-code
Charge
Language
Name
Button sound
Func. indicator
Factory Reset
Key lock
About
Menu and settings
Menu control
Three different selections can be made:
To access the menu, press the menu control, and then scrooll up and down.
Press the menu control to choose.
In the menu
On the following pages the
content will be presented as
well as how to change the
settings.

9
Receiver DH10
Back (relates to both the main menu and submenus)
Here you can choose to return to the menu and to the main display.
Communication
Channel
To use the receiver and the transmitter together, they must be set to the
same channel. The transmitter and receiver are set to the default channel by
the manufacturer.
This does not apply to units with both sender and receiver. In this case the
transmitter/receiver are adjusted as described in chapter Radio range and
Channels .
Change channel:
1. Choose Channel in the menu.
2. Choose transmitter or receiver (this applies only to
units with both transmitter and receiver).
3. Select a new channel using the menu control.
Channel information is also given when the units are paired.
Channels 1, 2 and 3 are free channels in most European countries that do not
require a licence. Under Extended more channels can be selected, but these
usually require a licence – see the section Radio Range and Channels .
FFC (Free Frequency Check) indicates in green the
suitable frequencies for the specic environment.
Pair
To use a receiver and transmitter together, they must be paired. All transmit-
ters and receivers are default paired at the factory and will work together.
NB! To prevent eavesdropping, a new code key must be generated and trans-
mitted between the units by pairing.
Transmitting/receiving of pairing information along with a new code can be
performed from any Comfort Digisystem unit with a display.
To pair units without a display, see section Pairing (via pairing button) for more
information. Pairing information or a new code key can be received by several
activated units.

10 Receiver DH10
Pairing (via menu)
1. Choose Communication - Pair
2. Select Receive info on one unit. Ready to receive
pairing info is shown in the display.
3. Select New code on the other unit; select Yes.
4. Generate new code and send info? is shown in the
display. Select Yes (Now both the channel and the
coding information have been sent, and sound
transfer is eavesdrop-secure).
5. To pair another unit into your coded system, select
Send info instead on one of your paired units.
Pairing (via pairing button)
(The only way of pairing units without a display, with the pairing button)
You can activate the Pairing function via the pairing button.
1. One brief press of the button opens the Pairing menu.
2. Two brief presses activate the Send info function.
3. One long press activates the Receive info function.
Units with both transmitters and receivers built in
Comfort Digisystem units with both transmitters and receivers built-in can be
paired separately.
When opening the pairing menu, choose the concerning unit (transmitter/
receiver). In units with both transmitters and receivers, the pairing button
controls the transmitter.
The transmitter and receiver are paired separately in these units. The code
key is always the same for the transmitter and the receiver when these are
built-in in the same unit.
The easiest way to get the same code key in the whole Digisystem is to gener-
ate a new code key from the combined unit; in that way the built-in receiver
gets the same code as the rest of the system.
Sound
Balance
If you use the Receiver DH10 with head- or earphones, you can adjust the
balance for the right end left ear with the menu control (scroll up or down).
Press the menu control to return to the menu.

11
Receiver DH10
Max. volume
Here you can activate and adjust the maximum volume.
Fixed volume
Here you can activate the xed volume function and set a permanent volume
level.
Settings
PIN-code
Here you can turn the PIN code function on and off (selected functions lock).
Under the menu item Change PIN you can create your own PIN code.
Under the menu item Lock Select, you can select different types of menu
locks:
- Sound: Locks all functions in the “Sound” menu (can be combined with the
“Pairing” menu item)
- Pairing: Locks all pairing functions in the unit, as well as the pairing button
- All menus: Locks all menus
- Hide PIN entry: When the PIN-code is enabled, it is only possible to unlock
the menu within 3 seconds after starting the unit, by pressing the menu
control.
A PIN-code is needed to be able to unlock selected functions when PIN-code
has been activated.
If you forget your PIN-code, please contact your point of purchase to unlock
the unit.
Charge
Here you can activate the Auto Power Off function to shut down the unit
automatically during charging. If Auto restart is activated, the unit will start
automatically when the charger is disconnected or loses power.
Language
Here you can select the menu language.
Name
Here the text to be displayed is selected. Choose symbols with the menu
control. Select  to save and x to close without saving. To move the cursor
during editing, use the symbols > and <.

12 Receiver DH10
Button sound
Here you can activate or deactivate the button sound.
Func. indicator
Here you can enable or disable the function indicator.
This function does not affect charging and pairing status.
Factory Reset
Resets the unit to it´s original settings and erases all pairing information. To
obtain security against eavesdropping, a new code key must be
generated or received from another unit in existing coded system.
Key lock
Here you can activate the key lock and thereby lock all buttons. Once the key
lock has been activated, Unlock keys? appears in the display. Select Yes to
unlock.
About
Here you nd software information.

13
Receiver DH10
More Functions
Function indicator (LED)
The function indicator shows the unit's status.
On normal operation, the indicator ashes once every three seconds.
During charging the indicator shows red.
When the charging is completed, the indicator shows green.
When the battery level gets low, the indicator slowly ashes red (check the
battery status on the display).
Once the unit has been set to receive pairing information, the indicator
ashes green quickly.
When receiving pairing information, the indicator shows green for three
seconds.
When sending pairing information, the indicator ashes red ve times.
If the radio signal is weak, the indicator ashes red.

14 Receiver DH10
Radio Range and Channels
The transmitter and receiver have built-in antennas. The radio range
between the units is around 30 metres. This may however vary depending on
the particular environment you are in. Like all radio systems, Comfort
Digisystem communicates on specic channels. If you use two transmitters
on the same channel or a neighbouring one, there may be interference.
Other electronic equipment can also interfere with radio transmissions.
In most European countries, channels 1-3 (863.250 – 864.750 MHz) may be
used for hearing products. However, you should always check with the
frequency assignment authority in your own country which channels are
free and which require a licence.
In addition to channels 1-3, under Extended there are several channels in
bands A-F, which require a licence in most European countries:
A 768 - 790 MHz
B 854 - 863 MHz
C 790 - 800 MHz
D 800 - 820 MHz
E 820 - 854 MHz
F 865 - 872 MHz

15
Receiver DH10
Attached Accessories
Neckloop
Carrying bag
Split cable
Power supply
Other original Accessories
Car charger
The car charger is designed for cars with a 12 volt (-) earthed electrical
system. The charger has short-circuit and automatic overload protection.
Disconnect the charger from the socket after use.
Charging stand
Charging stand to connect to the charger supplied.
Desk stand
Desk stand for the Receiver DH10.
Short neckloop
A shorter neckloop for the Receiver DH10 is also available.
Headphones/earphones
For other accessories, please visit our website,
www.comfortaudio.com

16 Receiver DH10
Trouble Shooting
The transmitter and receiver do not start
Charge the transmitter and receiver. Remember to press the On/Off button
down for 2 seconds to switch the unit on. Check that the charger is connected
to the plug socket.
Poor speech intelligibility
The distance between the transmitter and the receiver may be too long. The
range is around 30 metres. The distance between the microphone and the
person who is talking may also be too long; move the microphone nearer to
the person talking. Try to change channel/environment.
Poor range and interference
In some environments involving, e.g., concrete, iron or sheet metal structu-
res, the range may be reduced. There may also be equipment nearby causing
interference. Change channel.
No sound
Check that the transmitter and receiver are set to the same channel.
Loud hissing noise (no sound transfer)
Check that the units are paired.
The unit will not start during charging
Disconnect the charger. Choose Settings - Charge - Auto power off in the
menu.
NB!
When using with a hearing aid, make sure that it works both in the T and the
MT position.

17
Receiver DH10
Service and Warranty
Comfort Audio AB provides a comprehensive warranty for two years as from
the date of delivery. This covers all defects of manufacture and materials.
Defects caused by careless handling or intervention inside the product or its
accessories are not covered by the warranty.
Under normal use, battery lifetime is up to ve years.
Contact your point of purchase once it is time to change the battery.
You are always welcome to contact us at Comfort Audio if you have any
questions.
Technical Data
Type of receiver: SST – SecureStream Technology
Range: Approx. 30 m
Dimensions: 74 x 39 x 13 mm
Weight: 35 g
Frequency range: 768 - 872 MHz
Antenna: Built-in
Operating time: Up to ten hours
Battery: Chargeable Li-Polymer
Charging time: Approx. two hours
Connections: Neckloop, headphones/earphones
!

18 Receiver DH10
Important Safety Instructions -
Read these before using your product
1) Read these instructions.
2) Keep these instructions.
3) Heed all warnings.
4) FolIow all instructions.
5) Do not use this apparatus near water.
6) Clean only with dry cloth.
7) Do not use near any heat sources such as radiators heat registers stoves,
or other apparatus (including ampliers) that produce heat.
8) 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 t into your outlet consult an electrician for replacement of
the obsolete outlet. (Only when using polarized plug)
9) Protect the power cord from being walked on or pinched particularly at
plugs convenience receptacles. and the point where they exit from the
apparatus.
10) Only use attachments/accessories specied by Comfort Audio AB.
11) Unplug this apparatus during Iightning storms or when unused for long
periods of time.
12) Refer all servicing to qualied service personnel. Servicing is required
when the apparatus has been damaged in any way such as power-supply
cord or plug is damaged Iiquid has been spilled or objects have fallen into
the apparatus, the apparatus has been exposed to rain or moisture does
not operate normally or has been dropped.

19
Receiver DH10
13) Start listening at a low volume.
14) Too high a volume can seriously damage your hearing.
15) Don’t dissasemble the product.
16) Should the product break open because of damage, service should only
be done by qualied service personnel.
17) Never use a transmitter or receiver set to a non-permitted frequency.
Check with the frequency authority in the country where the equipment is
to be used.
18) The product contains sensitive electronic equipment and must be handled
carefully.
19) Never charge product in closed, unaired spaces such as handbags, cases
or other closed storage bags.
20) Only use batteries and power supply specied by Comfort Audio AB.
21) You must not change the battery yourself; please contact your point of
purchase.
22) CAUTION! Danger of explosion if battery is incorrectly replaced.
23) The product shall not be exposed to excessive heat such as sunshine, re
or the like.
24) Products include radio transmitters. Do not use products where it is not
allowed to use electronic equipment, e.g. on airplanes.

Manufactured by:
Comfort Audio AB
Box154, SE-301 05 Halmstad, Sweden
Tel. [phone] Fax [phone]
[e-mail] www.comfortaudio.com
MA0133 Ver 1.23 Rev A 101001