User manual English Comfort Digisystem Micro Receiver DT20 English
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 programs in the hearing instrument 9 Pairing 12 Trouble shooting 14 Service and warranty 15 Technical data 15 Important safety in
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.
Overview - Micro Receiver DT20 Europlug For connecting to the audio shoe on a hearing instrument or to the socket on the Programmer DT20. 4 Push-button For toggling between different listening modes and activating pairing mode.
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.
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 Microphone (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).
Getting started Connect the Micro Receiver DT20 to the audio shoe on the hearing instrument. Check that the audio shoe is connected to the hearing instrument according 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. OK! NOT OK! 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.
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.
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+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.
Micro Receiver DT20 with both R and R+M modes enabled The chart below shows the output (what the user can hear) when Micro Receiver DT20 listening modes R and R+M both are enabled, in combination with different input types and programs in the HI.
Pairing The Micro Receiver DT20 can receive but not transmit pairing information. To pair the Micro Receiver DT20 with your Comfort Digisystem transmitter the Micro Receiver DT20 must be connected either to your hearing instrument or to the Programmer DT20. Press the push-button on the Micro Receiver DT20 for 2 seconds to activate pairing mode. When pairing mode is activated, you receive an acoustic indication: • • Send the pairing information within 15 seconds.
Example 3: Make a new eavesdrop secure configuration with one Microphone DM90 and two Micro Receiver DT20s using the Programmer DT20: 1. 2. 3. 4. 5. 6. 7. 8. 9. Put one of the Micro Receiver DT20s into the Programmer DT20. Start the Programmer DT20 and connect headphones or a neck loop to be able to listen. Activate pairing mode for the DT20 by pressing the push-button for 2 seconds. In the headphones/neckloop you receive an acoustic indication: • • Start the Microphone DM90 and open the menu.
Trouble shooting The receiver does not start 1. Check that the correct listening program is selected on the hearing instrument. 2. Make sure the Micro Receiver DT20 is correctly connected to the hearing instrument’s audio shoe. Also check the connection between the audio shoe and the hearing instrument. 3. Make sure all connecting surfaces are clean. 4. Check/replace the hearing instrument’s battery. 5. Remember to press the push-button briefly to switch the DT20 on.
Service and warranty Comfort Audio AB accords a limited warranty for two years as of the date of delivery. This covers all defects of manufacture and materials. For accessories the warranty period is 90 days as of the date of delivery. Local agreements or regulations may exist. Defects caused by careless handling or intervention inside the product or its accessories are not covered by the warranty.
Important safety instructions — read 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 amplifiers) that produce heat. 8) Do not defeat the safety purpose of the polarized or grounding plug.
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 qualified service personnel. 17) Never use a transmitter or receiver set to a non-permitted frequency. Check with the frequency regulatory agency in the country where the equipment is to be used. 18) The product contains sensitive electronic equipment and must be handled carefully.
Micro Receiver DT20
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© Comfort Audio AB. All rights reserved. All content is subject to change without notice. MA0460 1303 Comfort Audio AB Box154, SE-301 05 Halmstad, Sweden Tfn +46 35 260 16 00 Fax +46 35 260 16 50 info@comfortaudio.com www.comfortaudio.
