Harris Maxiva ULX - Page 167

10/6/10 888-2629-200 4-31
WARNING: Disconnect primary power prior to servicing.
Section 4 Theory of Operation
Maxiva ULX COFDM Series
Figure 4-11 Predriver Backplane Diagram
2-Way
Splitter
SP1
RF
Input
AC
Filter
Connector
Interconnect
Board
801-0222-271
J3
J5
J1
Sync
Input
J4
Edge
Con.
JX
JX
RF
Output
J2
Sync
Input
J4
Edge
Con.
JX
RF
Output
AC
GND
AC
RF OUT
NC
RF In
A1A14
C1C14
Blind Mate Connectors, J5, J3, and J1,
Interconnect to Interface Boards,
View From Rear of Predriver Assembly
Interface
Board
801-0222-261
J1
28 Volt
Power
Supply
J2
J4
AC
Predriver Tray B
LED
Assembly
J3
J5
Phase & Gain
Board
801-0222-221
J3, DC and Control
RF
In
RF
Out
J2
J1
CD2007
Amplifier
RF
In
RF
Out
DC
DC and Control
Interface
Board
801-0222-261
J1
28 Volt
Power
Supply
J2
J4
AC
Predriver Tray A
LED
Assembly
J3
J5
Phase & Gain
Board
801-0222-221
J3, DC and Control
RF
In
RF
Out
J2
J1
CD2007
Amplifier
RF
In
RF
Out
DC
DC and Control
RF Input
RF Input
and Switch
FL2
AC
Filter
Connector
and Switch
FL2