Amplifier Operation; Front-Panel Controls; Figure 3.1 - Power Switch; Figure 3.2 - Gain Control - AE Techron 7224 Operator's Manual

7224 OPERATOR'S MANUAL – SECTION 3

3 Amplifier Operation

3.1 Front-Panel Controls

This section provides an overview of Front-Panel
controls and indicators found on the 7224.
3.1.1 Power Switch
The Power Switch controls the AC mains power to
the amplifier. Switch to the ON position (|) to turn
the amplifier on. Switch to the OFF position (O) to
turn the amplifier off. See Figure 3.1.
The Power Switch also serves as a Breaker. When
the Breaker is tripped, the Power Switch moves to
a neutral position between ON and OFF. To reset
the Breaker, turn the amplifier OFF (O) and then
turn it back ON (I).
3.1.2 Gain Control
The Gain Control Knob increases/decreases the
gain from 0 – 100% of the overall Gain (factory
default Gain is 20). See Figure 3.2.
Figure 3.1 – Power Switch
Figure 3.2 – Gain Control
97-7224006_3-31-15
3.1.3 Push Buttons
There are three Push Buttons on the 7224.
Enable – For stand-alone amplifiers, Enable will
release the amplifier from Stop mode and place
the amplifier in Run mode (both Ready and Run
LEDs will be lit). When the amplifier is placed
in Run mode, the amplifier will amplify the input
signal. If an amplifier is disabled using a Remote
Standby application, the amplifier will be placed in
Standby mode (both Ready and Standby LEDs will
be lit). To return the amplifier to Run mode, release
the Standby condition using the remote switch.
See the "Applications" section of this manual for
more information on remote amplifier operation.
In multi-amp systems that have been configured to
start up in Standby mode, when the Enable button
is pressed on one amplifier, the amplifier will be
placed in Standby mode and remain in Standby
mode until all amplifiers in the system have been
Enabled. The system will automatically proceed
to Run mode when all amplifiers in the system
achieve Standby mode.
Stop – For stand-alone amplifiers, Stop will place
the amplifier in Stop mode (both Standby and Stop
LEDs will be lit). When the amplifier is part of a
multi-amp system, pressing the Stop button on any
amplifier in the system will place that amplifier in
Stop mode and all other amplifiers in the system
in Standby mode. When an amplifier is in Stop or
Standby mode, the low-voltage transformer is en-
ergized but the high-voltage transformers are not.
Information subject to change
Figure 3.3 – Push Buttons
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