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3–2
FM1000A User’s Manual
These steps summarize the operating procedures you should use for the initial
operation of the power amplifier and power supply. More detailed information
follows.
1. Ensure that the external remote control unit is properly connected (See the
Pin Out Description Table, Section 2.6, page 2–8 for proper pin configura-
tion). If not using a remote control unit, pin 7 must be tied to ground pin 6.
2. Connect Antenna.
3. If using an external remote control, enable the power supply via the remote
I/O connector.
4. Turn on (flip up) the AC input circuit breaker located on the rear panel of the
power supply (do not turn on the front panel power switch yet).
3.1 Initial Power-up Procedures
5. Turn on the exciter (a Crown FM30 or equivalent) and adjust its RF power
output level until the In Reference (In Ref) voltage, as indicated on the
PA1000 front panel Digital Multimeter, is between 0.4 and 0.8volts. This is
not a drive dependent amplifier; therefore drive must be at a constant level
regardless of main output power.
Note: The unit will not operate until the exciter is active.
Illustration 3–1 PS1000 Back Panel Functions
240 VAC IN
AC Input
Circuit Breaker
Outputs to
PA1000
Air Exhaust Vents
+ DC Output
DC Output
PS1000
Fans
Power
Control
OFF
OFF
Fan
Circuit Breaker