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Fig. 3-1 Front panel
During operation with the amplifier the display is illuminated and the red LED above the ON/OFF button indicates
the button location which can be very useful in case of fast switching off in poor light conditions.
c) Keyboard with 6 buttons for manual (local) control of the amplifier. The function of each button is
prompted on the display above it. Depending on the menu displayed, the buttons may have different
functions.
d) The color display shows all the relevant information about the status of the amplifier.
3-3. Initial turning on – activation of the main power supply
In order to activate the main power supply at starting amplifier operation, press and hold on the ON/OFF button
on the front panel for one or two seconds - аbout three seconds later the display will flash and show the basic
screen showing the amplifier status and operation - Fig. 3-2.
After turning on, the amplifier stands in Stand-by or Operate mode – it depends on whether the AUTO OPERATE
option has been activated – see S. 5-4 USER PREFERENCES.
3-4. Basic screen
There are 9 information areas on the basic screen as follows:
a) Information area for the frequency band – the borders of the currently selected BAND are displayed.
If at start up of the amplifier there is no information about the operating frequency (neither the CAT/AUX nor the
RS232 interface is connected) the last working frequency is taken, which has been stored in the nonvolatile
memory of the amplifier.
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