ANEM Operating Manual
ANEM Operating Manual
Page 10
Power up
DSP button
pressed
2 tone sound
DSP button
pressed
2 tone sound
2 tone sound
Demonstration
2
Demonstration
1
No
Yes
No
Yes
No
Yes
DSP button
pressed
DSP button
pressed
2 tone sound
DSP button
pressed
Change
4 or 8 levels
Normal
operation
No
Yes
beep number
of DSP levels
Yes
No
DSP button
pressed
Yes
No
3.2 Set up.
The following flow chart shows the functions of the DSP
button.
Releasing the DSP button
at this point the module
goes in to demonstration
mode 1
Keep the button down
until the desired level
has been reached, then
release the button. The
module will continously
scroll through 4 and 8
levels until the button is
released.
Figure 7. 4/8 level setting.
Holding down the DSP
button when switching on
causes the module to enter
the set up mode.
This is indicated by a 2
tone beep.
Releasing the DSP button
at this point the module
goes in to demonstration
mode 2
3.
Module Operation.
Page 19
The input to the module is loaded at 22
W
to provide a
dummy load to the preceding circuit. This can be removed
if required, such as using the module in applications
where the audio source is provided by a low level, low
power signal source. More information on this can be
found in section 3.3 in this operating manual.
If V
in
is less than approx. 13.8V ensure the power supply
is well decoupled otherwise the power supply rejection
ratio will deteriorate. Best results are obtained in the
range of 13.8V - 16Vdc.
4.2 Controls.
The level controls provide adjustment for the audio levels
entering and leaving the module. The modules are factory
set to the maximum level.
Turning the potentiometers clock wise will decrease the
levels. These potentiometers do not have end stops, so
it is possible to set them in a position where the audio
will be lost.
Audible indication of operation is provided by an piezo
sounder. The volume of this sounder can be varied by
potentiometer P3. The sounder volume is independent
of the incoming audio volume.
4.
Technical Information.
