NAD C245BEE Stereo Amplifier User Manual


 
AUTOMATED TURN-ON LOGIC (ATO LOGIC)
The C 245BEE may be turned ON in any one of three discrete ways for
complete system exibility - from the front panel standby button, the 12V-
TRIGGER circuit or by the input signal-sensing circuit. The ON/OFF power
control is managed by the Automated Turn-On logic or ATO Logic circuit
that requires the C 245BEE to be switched back to standby mode in the
same manner by which it was activated. In other words, if the C 245BEE is
switched ON via a +12V-control signal, it cannot be switched to standby
mode via the front panel STANDBY button, it must wait for removal of the
+12V-control signal. In practice, you probably would use only one of the
methods once your C 245BEE is installed.
IDENTIFICATION OF CONTROLS
REAR PANEL
ATO LOGIC CHART
CONDITION
POWER SWITCH STANDBY BUTTON
+12V TRIGGER IN
(using 3.5mm mini-jack plug)
INPUT SENSE
Power
ON
Power
OFF
Standby Mode
(amber)
Switch ON
(blue)
+12V 0V
Mini-jack
unplugged
Input signal
>20mV
Input signal
<20mV
POWER switch : OFF
+12V TRIGGER IN/INPUT SENSE Sense: OFF
-
- - - - - - -
POWER switch : OFF
+12V TRIGGER IN/INPUT SENSE Sense: OFF
-
- -
- - - -
POWER switch : OFF
+12V TRIGGER IN/INPUT SENSE Sense: OFF
-
- - -
- - -
POWER switch : OFF
+12V TRIGGER IN/INPUT SENSE Sense: OFF
-
- - - -
- -
POWER switch : OFF
+12V TRIGGER IN/INPUT SENSE Sense: OFF
-
- - - - -
-
POWER switch : OFF
+12V TRIGGER IN/INPUT SENSE Sense: OFF
-
- - - - - -
POWER switch : ON
+12V TRIGGER IN/INPUT SENSE Sense: OFF
-
- - - - -
POWER switch : ON
+12V TRIGGER IN/INPUT SENSE Sense: OFF
- -
- - - -
POWER switch : ON
+12V TRIGGER IN/INPUT SENSE Sense: OFF
-
- -
- - -
POWER switch : ON
+12V TRIGGER IN/INPUT SENSE Sense: OFF
-
- -
- -
POWER switch : ON
+12V TRIGGER IN/INPUT SENSE Sense: OFF
-
- - -
-
POWER switch : ON
+12V TRIGGER IN/INPUT SENSE Sense: OFF
-
- - - -
POWER switch : ON
+12V TRIGGER IN/INPUT SENSE Sense: AUTO
- -
- - - -
POWER switch : ON
+12V TRIGGER IN/INPUT SENSE Sense: AUTO
-
- -
- - -
POWER switch : ON
+12V TRIGGER IN/INPUT SENSE Sense: AUTO
-
- -
- -
POWER switch : ON
+12V TRIGGER IN/INPUT SENSE Sense: AUTO
- -
- - -
-
POWER switch : ON
+12V TRIGGER IN/INPUT SENSE Sense: AUTO
-
- - - - -
NOTE
If the +12V TRIGGER IN/INPUT SENSE switch is set to OFF, the presence or absence of +12V trigger input or any input signal at the CHANNEL A IN or
CHANNEL B IN sockets will not have any eect on the C 245BEE, eectively defeating both features.
9
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