LX Series Digital
Chapter 2, Amplifier Assembly Description,
Power Amplifier Assembly
Maintenance & Remote Control Connections
Volume 2, Rev. 1
2-2
connects to the (A2) cabinet at J3 of (A2-
A5) a 4 way splitter. Three of the outputs
of the (A2-A5) splitter at J1, J2 and J4
connect to the (A1-A3), (A1-A6) and (A1-
A13) power amplifier chassis assemblies
at J200. The other output of the (A2-A5)
splitter at J4 is terminated.
In a 3 kW digital system there are two
cabinet assemblies (A1 and A2). The (A1)
cabinet assembly contains the (A1-A27)
exciter/driver assembly and the (A1-A6,
A1-A3, and A1-A13) Power Amplifiers.
The (A2) cabinet assembly contains the
(A2-A6, A2-A3, and A2-A13) Power
Amplifiers. The RF output of the
exciter/driver at J25 connects to (A1-A5-
A1) a 2 Way Splitter Assembly. One
output of the splitter connects to (A2-A5)
a 4 way splitter in the (A2) cabinet and
the other output connects to (A1-A5-A2) a
4 way splitter in the (A1) cabinet. Three
of the outputs of the (A1-A5-A2) splitter
at J1, J2 and J4 connect to the (A1-A3),
(A1-A6) and (A1-A13) power amplifier
chassis assemblies at J200. The fourth
output of the (A1-A5-A2) splitter at J5 is
terminated. The other output of the (A1-
A5-A1) splitter at J2 connects to the (A2)
cabinet at J3 of (A2-A5) a 4 way splitter.
Three of the outputs of the (A2-A5)
splitter at J1, J2, and J4 connect to the
(A2-A3), (A2-A6), and (A2-A13) power
amplifier chassis assemblies at J200. The
other output of the (A2-A5) splitter at J5
is terminated.
Data and control information for the
system is fed through the system serial
cable. In a 125W, 250W or 500W digital
system, the system serial cable connects
from J34 on the exciter/driver assembly to
J232 on the (A3) Power Amplifier
Assembly.
In a 1 kW digital system, the system
serial cable connects from J34 on the
exciter/driver assembly to J232 on the
(A3) Power Amplifier Assembly. The serial
cable then connects from J233 on the
(A3) power amplifier to J232 on the (A6)
power amplifier.
In a 1.5 kW digital system, the system
serial cable connects from J34 on the
exciter/driver assembly to J232 on the
(A3) Power Amplifier Assembly. The
serial cable then connects from J233 on
the (A3) power amplifier to J232 on the
(A6) power amplifier and from J233 on
the (A6) power amplifier to J232 on the
(A13) power amplifier.
In a 2 kW digital system, the system
serial cable connects from J34 on the
exciter/driver assembly to J232 on the
(A1-A3) Power Amplifier Assembly. The
serial cable then connects from J233 on
the (A1-A3) power amplifier to J232 on
the (A1-A6) power amplifier. The serial
cable next connects from J233 on (A1-
A6) to J233 on the (A2-A3) power
amplifier and then from J233 on the (A2-
A3) power amplifier to J232 on the (A2-
A6) power amplifier.
In a 2.5 kW digital system, the system
serial cable connects from J34 on the
exciter/driver assembly to J232 on the
(A1-A3) Power Amplifier Assembly. The
serial cable then connects from J233 on
the (A1-A3) power amplifier to J232 on
the (A1-A6) power amplifier. The serial
cable next connects from J233 on (A1-
A6) to J232 on the (A2-A3) power
amplifier. The serial cable next connects
from J233 on (A2-A3) to J232 on the
(A2-A6) power amplifier and then from
J233 on the (A2-A6) power amplifier to
J232 on the (A2-A13) power amplifier.
In a 3 kW digital system, the system
serial cable connects from J34 on the
exciter/driver assembly to J232 on the
(A1-A3) Power Amplifier Assembly. The
serial cable then connects from J233 on
the (A1-A3) power amplifier to J232 on
the (A1-A6) power amplifier. The serial
cable next connects from J233 on (A1-
A6) to J232 on the (A1-A13) power
amplifier. The serial cable next connects
from J233 on (A1-A13) to J232 on the
(A2-A3) power amplifier and then from
J233 on the (A2-A3) power amplifier to
J232 on the (A2-A6) power amplifier.
Finally the serial cable connects from
