User's Manual | ACOM 500S | 160-4
m Linear Power Amplifier
Page 26 of 66 | S e c t i o n FIRST POWER-ON, CONTROL SYSTEM, AND INITIAL CHECK
March 2023
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
Figure 2-3 | Rear panel - Connections
, Pos. (1)). Then insert amplifier's mains plug
into the wall outlet prepared for it.
Figure 3-1 | Front panel - Controls and Readouts
Figure 3-1 | Front panel - Controls and Readouts
3.1.
Low Energy Standby Mode of the Power Supply
Now you can turn on the mains switch marked
ON
/
OFF
Figure 2-3 | Rear panel - Connections
, Pos. (1)).
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
, Pos. (b)), while the main power
supply is still off and the display is dark.
