Motorola MTR2000 T5544 Instruction / Field Service Manual page 141

Replacing Station Control Module
68P81096E17-E
09/30/05
Replacement Procedure
1. If the Station Control Module (SCM) is capable of communicating
with the RSS, connect the PC to the RSS port, start the RSS program,
and save the codeplug from the station to a file on the PC hard disk.
This will allow the codeplug information to be downloaded to the
codeplug located on the replacement SCM. If the module cannot
communicate with the RSS, an archive file (if present on hard disk) of
the particular codeplug may be downloaded. If no archive codeplug
file exists, you must program the codeplug as described in the RSS
online help facility.
2. Turn off station power by turning off breaker at ac source.
3. Remove the station control cluster:
1. Remove module lock screws (2) from front of station control clus-
ter.
2. Disconnect BNC connectors on RF cables connecting PA Module
to Exciter Module, and Receiver Module to Receive antenna port.
3. By pulling forward on cluster pull tabs, carefully slide station
control cluster out of station.
4. Remove screws (4) securing Exciter Module, and screws (4) securing
Receiver Module to the SCM, and disconnect both modules from the
SCM.
5. Ensure that the correct Station Control Module is being installed.
6. Install replacement Station Control Module by plugging Exciter
Module and Receiver Module into respective connectors on new
SCM, replacing screws, and sliding the cluster back into the station
(along the guide rails) to mate with the connector on the backplane.
(Do not slam the station control cluster against the backplane or push
any harder than necessary to seat the connector.)
7. Install module lock screws (2) to front of station control cluster and
reconnect the RF cables from the PA Module and the Receive antenna
port to their respective modules.
8. Restore power to the station.
Post-Replacement Optimization Procedure
1. Replacement Station Control Modules are shipped with default data
programmed into the codeplug (Flash EPROM located on board).
After replacing a Station Control Module, you must download code-
plug data (unique to the particular station) to the replacement mod-
Troubleshooting
27