Motorola MTR3000 Basic Service Manual

14-12 MTR3000 Maintenance and Disassembly/Reassembly: Disassembly and Reassembly – Detailed
14.7.2.6 Receiver Module
1. Make sure the base station/repeater power is turned off at the breaker to the AC or DC
source.
2. Disconnect all the cables, as follows:
- Rx cable from Rx Module
- Exciter-to-PA coaxial cable
3. Remove the two screws holding the transceiver assembly to bottom plate.
4. Pull forward on the cast knobs (above the front panel that projects horizontally from the
Exciter and Receiver module), carefully slide the transceiver assembly (Exciter Module,
Receiver Module, Station Control Module (SCM)) out of the base station/repeater.
5. Remove the four screws securing the Receiver Module to the transceiver assembly and
disconnect Receiver Module from the Station Control Module (SCM).
6. Ensure that the correct Receiver Module is being installed.
7. Install the replacement Receiver Module by plugging the module into the connector on SCM,
replacing four screws, and sliding the transceiver assembly back into the base station/
repeater (along the guide rails) to mate with the connector on the backplane interface board.
8. Reconnect all cables.
9. Fasten the transceiver assembly into the unit with the two screws.
10. Restore power to the base station/repeater.
14.7.2.7 External Preselector Module
1. Make sure the base station/repeater power is turned off at the breaker to the AC or DC
source.
2. Disconnect cable to Receiver antenna connection and cable to Receiver Module.
3. Remove the two screws securing External Preselector to the back of the base station/
repeater.
4. Ensure that the correct External Preselector is being installed.
5. Install the replacement External Preselector by reconnecting the two cables and secure the
External Preselector to the base station/repeater with the two screws.
6. Restore power to the base station/repeater.
14.7.2.8 Backplane Interface Board
1. Make sure the base station/repeater power is turned off at the breaker to the AC or DC
source.
2. Disconnect all cables (Refer to Figure 14-5), as follows:
- Backplane Interface Board Power Cable
- PA Power Cable
- DC Input Cable
3. Pull forward on transceiver assembly pull tabs, carefully slide the transceiver assembly
(Exciter Module, Receiver Module, Station Control Module (SCM)) out of the base station/
repeater.
Note
Do not slam the transceiver assembly against the backplane interface board or push any
harder than necessary to seat the connector.

Motorola MTR3000 Specifications

General

Brand	Motorola
Model	MTR3000
Category	Accessories
Language	English