ASR Audio Systems Friedrich Schaefer, D-35745 Herborn, Germany +49 / 2772 – 42 905
High End Integrated Amplifier ASR Emitter I and II version 2009 on Page 17
In
“Off”
only the green
+11V LED
in the right front and a red
+5V
on the additionally board in
the front is shining. Without battery also the
input
is supplied. That can be seen with
4 red
Leds
In
“Standby”
the control voltages are switched ON. The yellow
-11 V LED
at the right side and
the 4 green
11V Leds
at the protection circuits are shining. Also the Leds at the input relay are
shining. With battery PSU the input stage is supplied with low voltage for preheating.
In
“Position 1, 2”
and the further positions, the amp switches ON the external PSU.
This is shown with the yellow Led
Main Power
, that is located under the additionally board.
After the PSS s have switched, the voltages for the driver and output stages are coming on.
4 green Leds are used to control of the
drive voltage
(+ 75; EM II 96 Volt),
4 yellow ones are showing the
output stage
supply (+ 60; EM II 78 Volt).
In “
Energy mode”
the voltages are half, the 8 Leds are shining low.
In
“Full power mode”
this 8 Leds will shine brighter with the full voltage.
The lock from above onto the main PCB board of Emitter II ( Em I next page ) :