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2 replacing a wpan (uwb) card, 6 rf passthru board (optional), 1 removing the rf passthru board – Dell Latitude E6420 XFR (Early 2011) User Manual

Page 15: Eplacing a, Wpan, Uwb), Rf passthru board (optional), Emoving the, Assthru, Oard

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Dell

Latitude™ E6420 XFR Service Manual

Page 15

5.2 Replacing a WPAN (UWB) Card

NOTICE:

The connectors are keyed to ensure correct insertion. If you feel resistance, check the

connectors on the card and on the system board, and realign the card.

NOTICE:

To avoid damage to the WPAN card, ensure the cables are not under the card when

you replace it.

NOTICE:

Insert a WPAN card only into the slot labeled WPAN/UWB/FCM.

1. Slide the card into the connector labeled WPAN/UWB/FCM.
2. Press the card down and hold it in place.
3. Replace the M2 x 3-mm screw.
4. Connect any cables to the WPAN card.
5. Replace the WWAN/FMC Card if present (see Replacing the WWAN/FMC Card).
6. Replace the Bottom Access Panel (see Replacing the Bottom Access Panel).
7. Follow the procedures in After Working on Your Computer.


6 RF Passthru Board (Optional)

6.1 Removing the RF Passthru Board

CAUTION:

Before you begin any of the procedures in this section, follow the safety

instructions that shipped with your computer.

1. Follow the procedures in Before Working on Your Computer.
2. Remove the bottom access panel (see Removing the Bottom Access Panel).
3. Disconnect the 3 antenna connections on the RF Passthru board.

4. Disconnect the antenna connection from the RF Passthru board to the GPS module if present