Dell Latitude 7350 Detachable Owners Manual - Page 87

Installing the MIMO3 WWAN antenna, Removing the MIMO3 WWAN antenna

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Figure 53. Removing the MIMO3 WWAN antenna Steps 1. Open the latch and disconnect HALL-sensor FPC from the connector (Kickstand Detect) on the system board. 2. Carefully peel the HALL-sensor FPC from the battery. 3. Loosen the captive screw (M1.6x2.5) that secures the WWAN-card bracket to the WWAN card. 4. Disconnect the black/grey WWAN auxiliary antenna and orange MIMO3 WWAN antenna cables from the WWAN card. 5. Disconnect the green WWAN P-sensor cable from the system board. 6. Unroute the black/grey WWAN auxiliary antenna cable from the routing channels on the system board. 7. Unroute the orange MIMO3 WWAN antenna cable from the routing channels and metal clip on the system board. 8. Unroute the green WWAN P-sensor and orange MIMO3 WWAN antenna cables from the routing channels at the top and right side of the battery. 9. Peel back the MIMO3 WWAN antenna grounding foil from the computer. 10. Remove the MIMO3 WWAN antenna from the computer. Installing the MIMO3 WWAN antenna CAUTION: The information in this installation section is intended for authorized service technicians only. Removing and installing Field Replaceable Units (FRUs) 87

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Figure 53. Removing the MIMO3 WWAN antenna
Steps
1.
Open the latch and disconnect HALL-sensor FPC from the connector (Kickstand Detect) on the system board.
2.
Carefully peel the HALL-sensor FPC from the battery.
3.
Loosen the captive screw (M1.6x2.5) that secures the WWAN-card bracket to the WWAN card.
4.
Disconnect the black/grey WWAN auxiliary antenna and orange MIMO3 WWAN antenna cables from the WWAN card.
5.
Disconnect the green WWAN P-sensor cable from the system board.
6.
Unroute the black/grey WWAN auxiliary antenna cable from the routing channels on the system board.
7.
Unroute the orange MIMO3 WWAN antenna cable from the routing channels and metal clip on the system board.
8.
Unroute the green WWAN P-sensor and orange MIMO3 WWAN antenna cables from the routing channels at the top and
right side of the battery.
9.
Peel back the MIMO3 WWAN antenna grounding foil from the computer.
10.
Remove the MIMO3 WWAN antenna from the computer.
Installing the MIMO3 WWAN antenna
CAUTION:
The information in this installation section is intended for authorized service technicians only.
Removing and installing Field Replaceable Units (FRUs)
87