Dell Latitude 7220EX, Service Manual

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Steps
1. Place the system board on the tablet chassis.
2. Replace the six (M2x5) screws that secure the system board to the tablet chassis.
3. Place the bracket and replace the three (M2x5) screws and two (M1.6x5) screws that secure the system board to the tablet
chassis.
4. Affix the adhesive tape and replace the three (M2x5) screws that secure the camera MIPI plate to the system board.
Connect the power adapter and rear camera flexible flat cable (FFC) to the system board. Insert to slide the microSD cable
and NFC cable under the grommet.
5. Connect the following cables to their connector on the system board (L-R): microphone board, LTE main + p-sensor, mic,
smartcard, fingerprint reader, microSD card, NFC, mini serial, speaker, right battery, and left battery from the system board.
6. As illustrated, affix the adhesive tapes to the connectors on the system board.
7. Route the GPS cable into the routing channel and connect it to the system board.
8. Slide the antenna cable into the clip and connect the antenna cables to the system board.
9. Connect the radio antenna cables to the system board.
Next steps
1. Install the WWAN .
2. Install the WLAN .
3. Install the solid-state drive .
4. Install the system fan .
5. Install the SSD heat-sink .
6. Install the display assembly .
7. Install the stylus .
8. Install the batteries .
9. Install the system cover .
10. Install the battery cover assembly .
11. Follow the procedure in after working inside the tablet .
Field service information 63