Replacing The Mts Lite / Mts 2 Preselector; Figure 142: Schematic Diagram Of Mts Lite / Mts 2 Preselector - Motorola MTS LiTE Installation, Configuration And Basic Service Manual

Figure 142: Schematic Diagram of MTS LiTE / MTS 2 Preselector

Antenna
NOTICE: Unused RX outputs should be terminated.
7.2.2.1

Replacing the MTS LiTE / MTS 2 Preselector

For a list of available FRUs, see
Prerequisites:
WARNING: RF energy burn hazard. Disconnect power in the cabinet to prevent injury and
equipment damage while disconnecting and connecting antennas.
Process:
1 Remove the Preselector, see
the Preselector – MTS 2 on page
2 Reinstall the Preselector, see
Reinstalling the Preselector – MTS 2 on page
7.2.2.1.1
Removing the Preselector – MTS LiTE
Procedure:
1 Remove the door of the cabinet completely.
2 Unscrew the antenna cable on the Preselector.
3 Remove the two fastening screws behind the antenna.
4 Loosen the two fastening screws at the front enough to free the center tab.
CAUTION: Do not remove the screws entirely because the filter will drop.
Preselector
LNA
Field Replaceable Units (FRUs) on page
Removing the Preselector – MTS LiTE on page 265
266.
Reinstalling the Preselector – MTS LiTE on page 266
266.
Chapter 7: Radio Frequency Distribution System
DC
DC
7v DC supply
446.
6802800U74-AN
RX BR1
RX BR2
or Removing
or
265