7 - 10 MAINTENANCE
Transceiver Board Removal
1. Remove six screws from the diecast cover using the T20 TORX™ driver as shown in
Figure 7-4.
2. If existing remove the metal GPS cover from the bottom (5 screws, T10 TORX™).
Remove the internal GPS board (one screw) from the transceiver and disconnect the flex 
cable from the main board.
3. Lift the cover from the chassis.
Figure 7-4   Diecast Cover Removal
4. Pull out the plastic accessory connector housing to the back.
5. Slowly lift the transceiver board on the edge at the front of the terminal (the edge that mates 
with the Enhanced Control Head) and pull gently toward the front of the terminal as shown in 
Figure 7-5. Take care to slide the antenna connector and power connector out of the chassis 
towards the front. 
6. If existing, take extra care of the UCM Board inside the cover plate and disconnect the flex 
CAUTION: Some terminals are equipped with a GPS module at the left side bottom of 
the transceiver and/or an additional UCM Board inside the transceiver cover plate, refer 
to special label at the cover plate (dotted line at the figure below). 
There are flex cables installed connecting these boards to the main board. Take extra 
care not to tear off the flex when dis-assembling or re-assembling the board from/to the 
transceiver or this could damage the GPS/UCM Board and the main board (refer to 
chapter explosion views figure 11, 12 for a detailed view).
!
Diecast
Cover
Screws (6x)
Terminal 
Chassis
ZWG0130212-O
Additional
UCM Board
Optional 
GPS Module
Position of UCM board
Position of GPS Module
UCM
GPS
Module
board
6866539D31.book  Page 10  Tuesday, March 20, 2007  6:32 PM