888-2408-002 1-5
WARNING: Disconnect primary power prior to servicing.
Introduction/Specifications
boards are plugged into the backplane to fit the transmitter for the configuration
being supplied.
The control system front panel includes an output metering LCD display which can
be used to view power output, VSWR, PA voltage and PA current. A second LCD
window , the Diagnostics Display, permits extensive viewing of internal voltages,
temperatures and a detailed Fault Log to easily pin-point problems. Long-life LED
fault and status indicators and reliable membrane switches provide all needed local
control and selection for the transmitter.
1.3.7 Directional RF Sample Port
Platinum Z FM transmitters provide an RF sample port with 30dB nominal
directivity. A directional RF sample provides more accurate performance
measurements by supplying a nearly reflection free RF sample source for external
monitoring equipment.
1.3.8 Power Supplies
The Z5 can be configured with a 3-Phase or Single Phase power supply. Both of
these supplies are dual units, with each supply powering half of the PA amplifiers.
Most other sections such as the IPA and the control system are powered from both
supplies. The supplies are regulated by reliable tap-switching techniques (non-
switching design). This approach provides high conversion efficiency and excellent
power factor with very low line harmonics, in an easy to service design. The power
supplies are mounted on a roll-out mounting plate for complete accessibility. The
dual-supply concept protects against total loss of service due to loss of a single
supply.
1.3.9 Air System
The Platinum Z uses a 2 speed fan to pull air in the back of the transmitter and
exhausts it out the top. There are air channels up through the PA assembly for
cooling. Upon startup, the transmitter will run at high speed for 1 minute, then will
drop to a lower speed provided there are no active faults. If a fault does occur during
normal operation the fan will automatically switch to high speed. For detailed
airflow information, refer to the Cabinet Outline Drawing in the Schematic
package.
1.4 Performance Specifications
See Sales Brochure at the end of this manual for a listing of the Performance
Specifications for the Platinum Z FM Transmitter.
NOTE:
Specifications subject to change without notice.
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