Operation; Turning On And Off - Acom 1500 User Manual

User's Manual | ACOM 1500 | HF + 6 m Linear Amplifier

4. OPERATION

Operation of the amplifier is simplified due to the TRI (True Resistance Indicator) tuning aid, AUTO-
OPERATE function, and Automatic Protection System, so you will be able to begin using the amplifier
immediately after the installation.
However, to make full use of the amplifier's potential and to fully configure it to your local conditions, we
recommend that you thoroughly read the following information.
There are 14 ON LINE information screens, which can be selected by pressing repeatedly the NEXT or PREV
buttons (see ). Their purpose and method of use
Figure 3-2 Information screens and control functions structure
are described in the next Sections through .

4.1 Turning ON and OFF

4.7 Auto-Protection System
4.1. Turning ON and OFF
In order to turn on the amplifier, while the Main Power Switch (located on the rear panel and marked
"LINE", see , Pos. (2)) is in On position, press the POWER button (located
Figure 2-1 Rear panel - Connections
on the front panel right-bottom corner, see ) and hold it on for
Figure 3-1 Front panel - Display and Controls
about one second. The LED indicator above the POWER button will change the color from red to green. You
will hear the blower and the optional external fan (if installed) start first at high speed, then slow down.
After successfully passing the initial self-tests, the LED indicator above POWER button begins flashing green
while the following inscription on the display remains lit:
WARMING UP: nnn s
(nnn above is the number of seconds remaining to readiness for operation)
A tube warm-up period of 3 minutes follows. During this time the amplifier remains in STANDBY mode, so
you can continue operating with the transceiver.
Pressing either the PREV or NEXT buttons during this period will result in changing the screen to one of the
14 available information screens described in Section .
4.6 ON LINE Information Screens and Control Functions
This action will not influence the warming-up process, so you may pass through all information screens, for
instance to monitor the High Voltage value or the Exhaust Air Temperature. You can also return to the earlier
screen to see how many seconds are still needed until the tube cathode reaches its operating temperature.
August 2021 S e c t i o n OPERATION | Page 23 of 52