User Manual

Table Of Contents
RF-Orchestra!™ Transmitter Installation and Operation Maintenance
July 2000 6880493G02-C 6-33
Power Amplifier Removal
Perform the following procedure to remove the power amplifier:
1. Power down all equipment located in the cabinet.
2. Remove the front cabinet door if the door does not open at least 90 degrees (see
paragraph, "Cabinet Doors Removal").
3. From the rear of the cabinet, disconnect the SPI cable from the DB9 connector on the PA
(see Figure 6-11).
Figure 6-11: Power Amplifier—Rear View
4. Use a 5.5-mm hex head driver to remove the two screws holding the interconnect cover
over the power supply connections, and set aside.
5. Disconnect the RED PA-to-PS cable from the +28Vdc connection.
6. Disconnect the BLACK PA-to-PS cable from the GROUND (–) connection.
7. Disconnect the AC fan cable from the AC fan connector.
302SRH-28
GROUND
GROUND
SERIAL PORT
RF-IN
POWER
+
-
AC Fan Power
RF Power Output
7/16 DIN
PowerSupply
Ground
+28Vdc
SPI Port RF Power Input
Cabinet Ground