Medel OPUS 2 User manual

How to fit Micro Receiver DT20 to MED-El OPUS 2 Sound processor
Micro Receiver DT20 can directly be connected to the OPUS 2 FM battery pack cover as shown
in the picture on the right.
Required Parts
1. Micro Receiver DT20
2. The OPUS 2 sound processor
3. OPUS2 FM battery pack cover
4. The FineTuner™ Remote Control
5. Programmer DT20
Before fitting Micro Receiver DT20 to the MED-EL OPUS 2
Please ensure that each step below is carefully followed before making any attempt to connect Micro Receiver DT20 to the sound processor.
1. Preparing the Comfort Digisystem
In this step you will use Programmer DT20 to configure Micro Receiver DT20 for optimal performance when being used with Opus 2.
a. Start Programmer DT20 and attach the Micro Receiver DT20 into its Europlug.
b. Select the Step-by-Step Guide and press .
c. Skip the Scan instruction animation and scroll to
the next step by pressing .
d. Check that Comfort Digisystem Microphone
is turned off.
On Programmer DT20 select and
press .
e. In this step the radio environment will
Automatically be scanned by the DT20
Programmer´s built-in spectrum analyser
and the value of the radio interferences
will be presented on the screen.
Ensure that there are no radio interferences
in your radio environment, before you go to the next step.
Green colour indicates acceptable radio interference level.
If any radio interferences higher than -91 dBm are indicated in your radio environment,
you need to find the interference sources and eliminate them.
f. Scan the CI processor: see the picture.
g. A typical interference level about -90 to -85 dBm will usually be
indicated and the background colour turns orange/ yellow.
Press to go to the next step.
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2
3
4
5

h. The picture shows that a moderate
interference level has been indicated.
Select Press to go to
the next step.
i. In this step a selection of those most
appropriate radio channels is shown.
Use to select one channel and then
press it to go to the next step.
Notice: The greener channel the less interference.
j. Enable Micro Receiver DT20´s Push Button.
k. Turn on your Comfort Digissytem Microphone and
configure it with a channel from the recommended
channel list in step i .
On Programmer DT20 select and press .
l. Press DT20´s Push button and hold it down
for more than 2 sec in order to set Micro Receiver
DT20 in pairing mode. You will then automatically
be guided to the next step.
m. Send the pairing information from
Comfort Digisystem Microphone
to Micro Receiver DT20.
n. Depending on whether the pairing procedure
has been successful ❶ or not ❷, one of
the symbols shown in the pictures to the right
will appear and you will be guided to:
i. The Step o if the pairing has been successful.
ii. The Step l if the pairing has not been successful.
Press to go to the next step.
o. Press to skip the Volume Adjustment Animation.
p. Adjust the volume of R to 0 dB.
Select and press ..
You will now be presented a chequered flag.
Press to go to the next step.
You will then be guided to the Main menu.
q. In the Main menu adjust the volume of
R+M to +2 dB. Enable Auto Sleep .
Choose if “Pairing by push button” may
be enabled or disabled .
Select High sensitivity .
r. The settings can be transferred and
saved in any computer via USB.
Connect Programmer DT20 to the computer.
Select and press .
❶
❷

2. Preparing the OPUS 2
a. Turn off the Speech Processor.
b. Replace the standard battery cover with the OPUS2 FM battery pack cover.
c. Insert Micro Receiver DT20 into the bottom of the FM battery pack cover.
3. Connecting Micro Receiver DT20 to the MED-El OPUS 2 and performing functional listening evaluation
a. Insert Micro Receiver DT20 into the bottom of the FM battery pack cover.
b. Turn on the sound processor
c. The sound processor will automatically detect Micro Receiver DT20 .
d. Perform a functional listening evaluation test as follows:
•Turn off Micro Receiver DT20. Conduct a listening test in quiet, at a Speaker-to-Listener distance of 1 metre.
•Turn on Micro Receiver DT20. It automatically turns on in the R-only mode. Repeat the same listening test in quiet, at a Speaker-to-Listener
distance of several metres this time. The user´s speech recognition performance should be almost the same in the both cases.
•If not, use Programmer DT20 to optimize the output level of Micro Receiver DT20 until almost the same performance is obtained.
•Note: The R+M mode is recommended to be used in quiet. The R-mode provides the user with a good speech recognition performance in
noise.