Motorola MTP850, Service Manual, Page: 75 / 118

MAINTENANCE MTP850 TETRA Handportable Terminal / Basic Service Manual 6 - 15
4. Place the Retainer rotary connector in position over the rotary connector,
aligning its hole with the hole in the stud on the main board.
5. Carefully attach the UCM Board to the Main Board. Verify the connector is
connected correctly.
6. Place and close the UCM fastening screw. Screw to 2.0±0.5 in-lb (0.23±0.058
Nm).
Note: Not available in the UCM-M module which will be supplied with the
UCM-M Upgrade Kit GMLN4561.
.
Figure 10 UCM Board Removal and Installation
Removing and Installing the Internal Assembly
Recommended tools: mini flat-tip screwdriver, UC Flex Holder (07012013001) –
for MTP850 S and MTP850 FuG only.
To remove the Internal Assembly from the unit (for MTP850
terminals)
1. Remove the back housing. Refer to “Removing and Installing the Top Cover
and Back Housing” on page 6-9.
2. Remove the UCM Board and the Retainer Rotary Connector. Refer to
“Removing and installing the UCM Board” on page 6-14.
3. Open the audio jack plug before removal of the Internal Assembly.
4. Disconnect the accessory flex cable from the main board.