User manual

Micro Receiver DT20
7
Hearing instrument:
Micro Receiver DT20 push-button
Off R+M mode
DAI input
Off Radio + HI microphone
Programmable DAI input
(DPAI)
DAI + M program
Off Radio + HI microphone
Programmable DAI input
(DPAI)
DAI program only
Off Radio only
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:
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.
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 R+M mode
DAI input
Off Radio only
Radio +
HI microphone
Programmable DAI input
(DPAI)
DAI + M program
Off
Radio +
HI microphone *
Radio +
HI microphone *
Programmable DAI input
(DPAI)
DAI program only
Off Radio only * Radio only *
* When using this setup in combination with Programmable DAI input (DPAI), the level of the two modes (R+M and R)
can be programmed individually to serve as a volume control.
Note! Difference in volume can occur
When using a hearing aid with Programmable DAI input (DPAI) and having both R and R+M modes in the Micro Receiver DT20 ena-
bled there can be a difference in volume between the R and R+M modes even if the Micro Receiver DT20 has been programmed with
identical output levels for the two modes. The reason for this difference is that the output level in the Micro Receiver DT20 is affected
by the input impedance of the hearing instrument.
The difference in output level can vary between different hearing instruments - usually the output level will be slightly higher in the
R+M mode. An adjustment might be done with the Programmer DT20 in order to meet the users requirements.