Comfort Digisystem DT20 User manual
English
User manual
English
Comfort Digisystem
Micro Receiver DT20
2
Micro Receiver DT20
User Manual
Table of Contents Page
Introduction Comfort Digisystem 3
Presentation of the Micro Receiver DT20 3
Overview - Micro Receiver DT20 4
Check the hearing instrument’s input 5
Getting started 7
Acoustic indication, sound signals 8
Modes in the Micro Receiver DT20 8
Output for user with different input types and 9
programs in the hearing instrument
Pairing 12
Trouble shooting 14
Service and warranty 15
Technical data 15
Important safety instructions 16
3
Micro Receiver DT20
Introduction to the Comfort Digisystem
Thank you for choosing Comfort Digisystem. Our products are easy to use and
give you crystal clear sound.
Before using the product, please read this manual carefully.
The Comfort Digisystem products feature SecureStream Technology – a
unique, patented digital technology allowing eavesdrop-secure radio transfer
in real time.
Comfort Digisystem Micro Receiver DT20
— the world’s smallest digital mini receiver
The Comfort Digisystem Micro Receiver DT20 is a digital mini receiver that
you
can easily connect to any hearing aid with a standard three-pin Europlug
audio shoe.
The receiver weighs 1,1 gram and is powered by the hearing instrument’s
battery. To minimize energy consumption, the mini receiver is equipped with
an optional auto-sleep feature.
Together with existing microphones and receivers in the Comfort Digisystem
assortment, the Micro Receiver DT20 provides clear speech perception.
The optional professional tool Programmer DT20 can be used to configure the
Micro Receiver DT20.
The Programmer DT20 also makes it easy to test the Micro Receiver DT20
with or without a hearing instrument.
4
Micro Receiver DT20
Overview - Micro Receiver DT20
Push-button
For toggling between
different listening
modes and activating
pairing mode.
Europlug
For connecting to the
audio shoe on a hearing
instrument or to
the socket on the
Programmer DT20.
5
Micro Receiver DT20
Check the hearing instrument’s input
To be able to use the Micro Receiver DT20, check if — and how — the hearing
instrument supports the use of a mini receiver:
1. The hearing instrument must be equipped with an audio shoe with a
powered Europlug socket made for mini receiver use. This connects the
Micro Receiver DT20 to the hearing instrument and also supplies the DT20
with power from the hearing instrument’s battery. The received audio signal
will then be transferred from the Micro Receiver DT20 to the hearing instru-
ment through the audio shoe.
2a. If the hearing instrument is equipped with a Programmable DAI input
(DPAI), programming of the hearing instrument might be necessary (check
with audiologist or hearing instrument manufacturer). In this case the push-
button on the Micro Receiver DT20 cannot switch between the R and R+M
modes. This is instead done by using different listening programs in the hear-
ing instrument.
TIP! The volume of the Micro Receiver DT20’s R and R+M mode can be set individu-
ally by using the Programmer DT20.
This makes it possible to use the push-button as a simple volume control in
combination with a hearing instrument with Programmable DAI input (DPAI).
EuroplugDT20
6
Micro Receiver DT20
2b. If the hearing instrument is equipped with a DAI input (check with
audiologist or hearing instrument manufacturer), no programming of the
hearing instrument is necessary. The Micro Receiver DT20 works with the Mi-
crophone (M) listening program on your hearing instrument. By setting up the
Micro Receiver DT20 with the Programmer DT20, the push-button on the
Micro Receiver DT20 can be used to select the listening mode: Radio only (R
mode) or Radio + Hearing instrument microphone (R+M mode).
EuroplugDT20
7
Micro Receiver DT20
Getting started
Connect the Micro Receiver DT20 to the audio shoe on the hearing instru-
ment. Check that the audio shoe is connected to the hearing instrument ac-
cording to the manufacturer’s instructions.
Make sure that the Micro Receiver DT20 is fitted in the correct manner and
push the Euro-plug completely into the socket of the audio shoe.
The Micro Receiver DT20 is powered by the hearing instrument’s battery.
Make sure that the battery is fresh. If you are unsure, replace the battery.
The Micro Receiver DT20 will start automatically when it’s connected to the
hearing instrument. Briefly press the push-button on the Micro Receiver DT20
to turn it on or off again.
OK!
NOT OK!
8
Micro Receiver DT20
Acoustic indication, sound signals
The following is a description of the acoustic indications (sound signals). The
sound signals consist of various combinations of two different tones: one high
pitch tone (1000 Hz) and one low pitch tone (500 Hz), and two different tone
lengths.
Action: Sound signal: Indicate this:
Button pressed Short high pitch • Selecting mode
briefly or turning on
Button pressed Short high pitch x 2 ••—Turning off
briefly + long low pitch
Button pressed Short low pitch ••Pairing mode
2 sec. + short high pitch
Pairing Short high pitch x 2 •• Successful pairing
Pairing Long high pitch —— Pairing failed
+ long low pitch
Listening modes in the Micro Receiver DT20
The available listening modes in the Micro Receiver DT20 can be setup in
different configurations:
RDefault setting
R+M Setup with Programmer DT20 is necessary
Rand R+M Setup with Programmer DT20 is necessary
The Programmer DT20 is used to configure and enable or disable different
listening modes in the Micro Receiver DT20. The push-button on the Micro
Receiver DT20 is used to toggle between the activated listening modes.
It is also possible to disable the push-button completely.
9
Micro Receiver DT20
Output for user with different input types and programs in the
hearing instrument
Different hearing instrument electrical input types and available programs in
the hearing instrument will result in different output for the user. Output for
the user is shown in the white sections of the charts below.
Micro Receiver DT20 with R mode enabled (default setting)
The chart below shows the output (what the user can hear) when Micro Re-
ceiver DT20 listening mode R is enabled in combination with different input
types and programs in the HI.
When pressing the push button on the Micro Receiver DT20, the listening
mode is shifted in the following sequence:
Hearing instrument:
Micro Receiver DT20 push-button
Off
R mode
DAI input Off Radio only
Programmable DAI input
DAI + M program Off Radio + HI microphone
Programmable DAI input
DAI program only Off Radio only
10
Micro Receiver DT20
Micro Receiver DT20 with R+M mode enabled and R mode disabled
The chart below shows the output (what the user can hear) when Micro
Receiver DT20 listening mode R+M is enabled, in combination with different
input types and programs in the HI.
When pressing the push-button on the Micro Receiver DT20, the listening
mode is shifted in the following sequence:
Hearing instrument:
Micro Receiver DT20 push-button
Off
R+M mode
DAI input Off Radio + HI microphone
Programmable DAI input
DAI + M program Off Radio + HI microphone
Programmable DAI input
DAI program only Off Radio only
Table of contents
Other Comfort Digisystem Receiver manuals
