Niko 10-10X Mode D'emploi page 33

2. Adjusting the volume at the external audio unit
The volume of the microphone (at the internal unit) and the loudspeaker (at the external
audio unit) can be adjusted using the potentiometers on the printed circuit board of the
external audio unit (fig. 2 and 3). Rotate to the left to decrease the volume, and rotate to
the right to increase the volume.
3. Function
potentiometer for loudspeaker (volume at the external audio unit)
potentiometer for microphone (volume at the internal unit)
4. Testing a bell push button
To check whether a bell push button has been properly programmed, proceed as follows:
briefly press the
bell push button to be tested
4. TROUBLESHOOTING
1. Using a multimeter, always first check the voltage between the terminals:
Between terminals ...
b and a
b and P
2. If the problem with the unit is not solved, then go through the following list of possible
problems:
Problem
negative tone when pushing the
bell push button
speech and functions (e.g. door
opener function) OK, but no LED
lighting
If the external audio unit must be replaced, the EEPROM memory of the units can be
EN
10-10X / 10-11X(-01) / 10-12X(-01)
The following voltage must be present
+ 24 V (+ 8%)
+ 24 V (+ 8%)
Cause
programming error or
corresponding internal
unit not installed properly
installation in programming
mode
P is not connected to the
external audio unit
one short tone + light relay
is switched = NOT yet
programmed
ringtone = already
programmed
Solution
delete programming and reprogram the system
exit programming mode
connect P to the external audio unit (three-
wire) or connect terminals a and P (two-wire)
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