Dell Latitude 7230 Rugged Extreme Tablet Service Manual - Page 37

Table 3. Antenna-cable color scheme, Steps, Color, Cable Color, Next steps

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Steps 1. Align the notch on the WWAN card with the tab on the WWAN-card slot. 2. Slide the WWAN card at an angle into the WWAN-card slot. 3. Connect the antenna cables to the WWAN card. Table 3. Antenna-cable color scheme Color WWAN Main * WWAN Main Bridge ** Cable Color A (white/grey) WWAN MIMO3 B (orange) WWAN MIMO2 * WWAN MIMO2 Bridge ** C (blue) WWAN Auxiliary D (black/grey) ● * For models shipped without pass-through cables ● ** For models shipped with pass-through cables 4. Align and place the WWAN shielding cover on the WWAN card. 5. Align the screw hole on the WWAN thermal plate with the screw hole on the system board. 6. Replace the single screw (M2x3) to secure the WWAN thermal plate to the system board. 7. Align the screw hole on the WWAN bracket with the screw hole on the system board. 8. Replace the two screws (M2x3) to secure the WWAN bracket to the system board. 9. Adhere the conductive tape to the WWAN thermal plate. 10. Align and place the system-board shielding cover on the WWAN card. Press along the sides until it clicks in place. 11. Adhere the gasket to the top-left side of the system-board shielding cover. 12. Route the fan cable through the routing guides along the right side of the system-board shielding cover. 13. Connect the fan cable to the connector on the system board. NOTE: For instructions on how to find your computer's IMEI (International Mobile Station Equipment Identity) number, see the knowledge base article 000143678 at https://www.dell.com/support/. Next steps 1. Install the back-cover assembly. 2. Install the batteries. 3. Install the handle (for models shipped with handle). Removing and installing components 37

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Steps
1.
Align the notch on the WWAN card with the tab on the WWAN-card slot.
2.
Slide the WWAN card at an angle into the WWAN-card slot.
3.
Connect the antenna cables to the WWAN card.
Table 3. Antenna-cable color scheme
Color
Cable Color
WWAN Main *
WWAN Main Bridge **
A (white/grey)
WWAN MIMO3
B (orange)
WWAN MIMO2 *
WWAN MIMO2 Bridge **
C (blue)
WWAN Auxiliary
D (black/grey)
●
* For models shipped without pass-through cables
●
** For models shipped with pass-through cables
4.
Align and place the WWAN shielding cover on the WWAN card.
5.
Align the screw hole on the WWAN thermal plate with the screw hole on the system board.
6.
Replace the single screw (M2x3) to secure the WWAN thermal plate to the system board.
7.
Align the screw hole on the WWAN bracket with the screw hole on the system board.
8.
Replace the two screws (M2x3) to secure the WWAN bracket to the system board.
9.
Adhere the conductive tape to the WWAN thermal plate.
10.
Align and place the system-board shielding cover on the WWAN card. Press along the sides until it clicks in place.
11.
Adhere the gasket to the top-left side of the system-board shielding cover.
12.
Route the fan cable through the routing guides along the right side of the system-board shielding cover.
13.
Connect the fan cable to the connector on the system board.
NOTE:
For instructions on how to find your computer's IMEI (International Mobile Station Equipment Identity) number,
see the knowledge base article
000143678
at
.
Next steps
1.
Install the
back-cover assembly
.
2.
Install the
batteries
.
3.
Install the
handle
(for models shipped with handle).
Removing and installing components
37