Dell Latitude 7230 Rugged Extreme Tablet Service Manual - Page 75

board and route the cables through the routing guides., to switch cable

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Steps 1. Align the screw holes on the system board with the screw holes on the tablet. 2. Replace the eight screws (M2x3) to secure the system board to the tablet. 3. Connect the speaker cable, docking FPC, touch panel FPC, display cable, and function daughter-board FPC to the connector on the system board. 4. Adhere the adhesive tape to the display cable connector on the system board. 5. Align the screw holes on the USB Type-C bracket with the screw holes on the system board. 6. Replace the three screws (M2x5) to secure the USB Type-C bracket to the system board. 7. Align the screw hole on the SSD release-latch holder with the screw hole on the system board. 8. Replace the single screw (M2x5) to secure the SSD release-latch holder to the system board. 9. Align the screw holes on the docking FPC bracket with the screw holes on the system board. 10. Replace the two screws (M2x3) to secure the docking FPC bracket to the system board. 11. For models shipped with WWAN antennas with full RF pass-through function, connect the red GPS antenna cable, white WLAN Main antenna to switch cable, white WLAN Main pass-through to switch cable, white/gray WWAN Main antenna to switch cable, white/gray WWAN pass-through to switch cable, green WWAN Main P-sensor cable, green WLAN Aux P-sensor cable, green MIMO 2 P-sensor cable, green WLAN Main P-sensor cable, blue MIMO 2 pass-through to switch cable, blue MIMO 2 antenna to switch cable, and red GPS pass-through to switch cable from the connectors on the system board and route the cables through the routing guides. 12. For models shipped with WWAN antennas, connect the red GPS antenna cable, green WWAN Main P-sensor cable, green WLAN Aux P-sensor cable, green MIMO 2 P-sensor cable, and green WLAN Main P-sensor cable from the connectors on the system board and route the cables through the routing guides. 13. For models shipped with WLAN antennas, connect the red GPS antenna cable, green WLAN Aux P-sensor cable, and green WLAN Main P-sensor cable from the connectors on the system board and unroute the cables through the routing guides. Next steps 1. Install the fan with SSD heat-sink assembly. 2. Install the front camera and microphone assembly. 3. Install the scanner assembly. 4. Install the heat sink. 5. Install the world-facing camera. 6. Install the USB daughter-board, Mini-serial RS232 daughter-board, RJ45 daughter-board, and decoder daughter-board. Removing and installing components 75

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Steps
1.
Align the screw holes on the system board with the screw holes on the tablet.
2.
Replace the eight screws (M2x3) to secure the system board to the tablet.
3.
Connect the speaker cable, docking FPC, touch panel FPC, display cable, and function daughter-board FPC to the connector
on the system board.
4.
Adhere the adhesive tape to the display cable connector on the system board.
5.
Align the screw holes on the USB Type-C bracket with the screw holes on the system board.
6.
Replace the three screws (M2x5) to secure the USB Type-C bracket to the system board.
7.
Align the screw hole on the SSD release-latch holder with the screw hole on the system board.
8.
Replace the single screw (M2x5) to secure the SSD release-latch holder to the system board.
9.
Align the screw holes on the docking FPC bracket with the screw holes on the system board.
10.
Replace the two screws (M2x3) to secure the docking FPC bracket to the system board.
11.
For models shipped with WWAN antennas with full RF pass-through function, connect the red GPS antenna cable, white
WLAN Main antenna to switch cable, white WLAN Main pass-through to switch cable, white/gray WWAN Main antenna
to switch cable, white/gray WWAN pass-through to switch cable, green WWAN Main P-sensor cable, green WLAN Aux
P-sensor cable, green MIMO 2 P-sensor cable, green WLAN Main P-sensor cable, blue MIMO 2 pass-through to switch
cable, blue MIMO 2 antenna to switch cable, and red GPS pass-through to switch cable from the connectors on the system
board and route the cables through the routing guides.
12.
For models shipped with WWAN antennas, connect the red GPS antenna cable, green WWAN Main P-sensor cable, green
WLAN Aux P-sensor cable, green MIMO 2 P-sensor cable, and green WLAN Main P-sensor cable from the connectors on the
system board and route the cables through the routing guides.
13.
For models shipped with WLAN antennas, connect the red GPS antenna cable, green WLAN Aux P-sensor cable, and green
WLAN Main P-sensor cable from the connectors on the system board and unroute the cables through the routing guides.
Next steps
1.
Install the
fan with SSD heat-sink assembly
.
2.
Install the
front camera and microphone assembly
.
3.
Install the
scanner assembly
.
4.
Install the
heat sink
.
5.
Install the
world-facing camera
.
6.
Install the
USB daughter-board
,
Mini-serial RS232 daughter-board
,
RJ45 daughter-board
, and
decoder daughter-board
.
Removing and installing components
75