Axcera Innovator L Series, Инструкция по эксплуатации

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LX Series Digital Chapter 2, Amplifier Assembly Description,
Power Amplifier Assembly Maintenance & Remote Control Connections
Volume 2, Rev. 1 2-9
route these lines as the system's RF
power signals. In systems of output
power greater than 50 Watts digital,
system power is monitored by an
external module that is connected to
TB31 and control board SW1 switches
must be set off.
The Forward Power of the
Transmitter/Exciter Driver Power Amplifier module is routed to the
Upconverter module as AGC #1. A
system over-drive condition is detected
when this value rises above 0.9 VDC.
When an over-drive condition is
detected, the Upconverter module
reduces its RF output level. For values
less than 0.9 VDC, the Upconverter uses
this voltage for automatic gain.
Table 2-3. Power Amplifier Status Indicator
LED FUNCTION
ENABLED
(Green)
When lit Green, it indicates that the PA is in the Operate Mode. If a Mute
occurs, the PA will remain Enabled, until the input signal is returned.
DC OK
(Green)
When lit Green, it indicates that the fuse protected DC inputs to the PA
module are OK.
TEMP
(Green)
When lit Green, it indicates that the temperature of the heatsink
assembly in the module is below 78
û C.
MOD OK
(Green)
When lit Green, it indicates that the PA Module is operating and has no
faults.
MOD OK
(Red)
If the Module OK LED is Red and blinking a fault is present.
1 Blink indicates Amplifier Current Fault.
2 Blinks indicate Temperature Fault.
3 Blinks in32V Power Supply Over Voltage Fault.
4 Blinks in32V Power Supply Under Voltage Fault.
5 Blinks indicate Reflected Power Fault.
6 Blinks in12V or –12V Power Supply Fault.
Table 2-4. Power Amplifier Control Adjustments
POTENTIOMETERS DESCRIPTION
RFL CAL Adjusts the gain of the Reflected Power monitoring circuit
FORWARD CAL
Adjusts the gain of the Dual Peak Detector Board. Forward Power
monitoring circuit
METER ZERO Adjusts the offset of the Forward Power monitoring circuit
Table 2-5. Power Amplifier Sample
DISPLAY FUNCTION
FWD SAMPLE RF sample of the amplified signal being sent out the module on J25.