Service Manual

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6802800U74-AN
Chapter 7: Radio Frequency Distribution System
Figure 153: MTS 4 Duplexer
Figure 154: Schematic Diagram of MTS 4 Duplexer
7.3.3.1
Replacing the MTS 4 Duplexer
Process:
1 Remove the Duplexer.
7V DC supply
Duplexer
DC
RX
BR1
DC
RX
BR2
DC
RX
BR3
LNA
RX
DC
RX
BR4
RX
Exp. Cabinet
Antenna
Pwr
meter
Coupler
Detector
TX
To Hybrid ATCC/
MTCC or BR
A/D
CAN Bus
Ctrl
DC
CAN Bus
2xCAN Bus
7v DC supply