MTR3000 Maintenance and Disassembly/Reassembly: Disassembly and Reassembly – Detailed 14-11
14.7.2.5 Station Control Module
1. Make sure the base station/repeater power is turned off at the breaker to the AC or DC
source.
2. Disconnect the cables, as follows:
- Rx cable from Receiver Module
- Exciter-to-PA coaxial Cable
3. Remove the two screws holding the transceiver assembly to the 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 (Refer to
Figure 14-7).
5. Remove four screws securing Exciter Module, and four screws securing Receiver Module to
the SCM, and disconnect both modules from the SCM (Refer to Figure 14-8).
Figure 14-8 Removing screws securing Exciter Module, Receiver Module and SCM
6. Ensure that the correct Station Control Module is being installed.
7. Install the replacement Station Control Module by plugging the Exciter Module and the
Receiver Module into the respective connectors on the new SCM. Tighten the screws and
slide 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 the cables.
9. Fasten the transceiver assembly into the unit using the two screws.
10. Restore power to the base station/repeater.
Note
If the Station Control Module is replaced, please contact the Motorola System Support
Center to obtain the updated License Key if any premium features were purchased and
refer to the “Purchasing Radio Features” section in the Online Help of the Customer
Programming Software (CPS) for further details.
Note
Do not slam the transceiver assembly against the backplane interface board or push any
harder than necessary to seat the connector.
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