Rev. 1.0
Operation
3—3
Carrier Switch This switch controls power to the RF amplifiers and supplies a logic
high to the voltage regulator board, which enables the supply for the RF driver. In
addition, the Carrier Switch controls the operating voltage needed by the switching
power regulator.
A “Lock Fault” or a low pin 12 (/Carrier Off) on the Remote I/O connector will hold
the carrier off. (See Section 2.12, Program Input Fault Time-out)
Main Power SwitchThe main on/off power switch controls both the 120/240 VAC
and the DC battery power input.
Control KnobA push-and-turn control to access all settings and parameters. Use in
conjunction with Main Display
Main DisplayThe FMX Main Display is a four line alpha-numeric display. All critical
transmitter parameters, controls and alarm settings are displayed on the Main
Display.
Status Indicator Ring : Critical transmitter status is displayed by the illuminated
Status Indicator ring surrounding the Control Knob. The following colors indicate
transmitter status:
• Orange flashing : Start up
• Green : on the air and transmitting
• Yellow : an active fault is present
• Red : fault, RF power below 2 watts.
Audio monitor : Use the audio monitor jack to test the quality of the program audio
at three different points in the audio path. The monitored point is selected with the
main control and display.
• Receiver board for on-air monitoring
• Input audio
• Output of audio processor
