MAINTENANCE MTH800 TETRA Handportable Terminal / Basic Service Manual 6 - 15
To install the UCM board on the main board
1. Hold the Main Board with the UCM connector facing you.
2. Carefully attach the UCM Board to the Main Board. Verify the connector is
connected correctly.
3. Turn the Main Board over.
4. Close the UCM fastening screw. Screw to 2.5±0.3 in-lb (0.28±0.034 Nm).
Please note that the UCM-M module does not have a fastening screw.
5. Install the Main Board.
Removing and installing the Display
Recommended tools: mini flat-tip screwdriver
Note:Do not touch the display in the active viewing area; fingerprints on this
surface cannot be easily removed.
When servicing the display, work in a clean cell using de-ionised air
pressure.
To remove the display from the unit
(See Figure 11 and Figure 12)
1. Remove the main board from the display & chassis assembly. Refer to
“Removing and Installing the Main Board” on page 11.
2. Remove the display & chassis assembly out from the unit.
3. Place the chassis assembly, with the display facing down, on the clean work
area.
4. Insert the screwdriver into one of the side slots in the upper side of the
chassis assembly, above the display board, and gently push the display
holders out from the chassis assembly.
5. Turn the chassis around so the display is facing you.
6. Disconnect the display flex cable connector from the display board.
7. Carefully remove the display.
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