User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier
Page 20 of 52 | S e c t i o n FIRST POWER-ON, CONTROL SYSTEM, AND INITIAL CHECK
May 2021
3.
FIRST POWER-ON, CONTROL SYSTEM, AND INITIAL CHECK
NOTICE
Do not turn the amplifier on for at least 2 hours after unpacking it in the room where it
will be used. Pay particular attention when you move it from a very cold into a warm
place - condensation is likely and this could result in damage to the high voltage circuits.
In such a case, wait at least 4 hours. A similar effect can occur after a rapid warming of
the operating room (for instance after switching on a powerful heater in a cold shack).
After following all instructions in Section
, check whether the rear panel mains switch
(marked "ON/OFF") is turned off (see
Figure 2-1 Rear panel - Connections (1)
). Then insert amplifier's mains
plug into the wall outlet prepared for it.
3.1.
Low Energy Standby Mode of the Power Supply
Now you can turn on the mains switch (marked "ON/OFF") on the rear panel. This will activate only the
low-energy stand-by mode of the amplifier power supply and the red LED above POWER button will light up
(see
Figure 3-1 Front panel - Controls and Readouts (b)
), while the main power supply is still off and the display
is dark.
3.2.
Front Panel
Figure 3-1 Front panel - Controls and Readouts
a)
POWER button
When the rear panel mains switch is turned on, push and hold for 1-2 seconds to start the amplifier up.
When the amplifier is turned on, push to turn it off (back to Low Energy standby mode).
b)
LED indicator above the POWER button
When lit red and the screen is dark, the amplifier is in Low Energy standby mode and may be turned on by
pushing the POWER button.
c)
Functional buttons
Six functional buttons keypad for manual (local) control of the amplifier. The function of each button is
indicated on the display above it. Depending on the displayed menu, the buttons may have different
functions (soft key).
d)
A high resolution, 24-bit color display showing the operating information.