Dell D420 Internal Card With BluetoothWireless Technology , Coin-Cell Battery

Internal Card With Bluetooth®Wireless Technology
If you ordered an internal card with Bluetooth wireless technology with your computer, it is already installed.
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1. Follow the procedures in Before You Begin.
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2. Remove the keyboard (see Keyboard).
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3. Remove the M2 x 3-mm screw from the card holder and lay the holder aside.
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4. Lift the card away from the aligning pin.
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5. Disconnect the card cable connector from the card.
Coin-Cell Battery
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1. Follow the procedures in Before You Begin.
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2. Remove the keyboard (see Keyboard).
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3. Disconnect the coin-cell battery cable connector from the system board connector.
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4. Remove the coin-cell battery from the system board.
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metal tabs (2) on SIM card slot
2
SIM card with cut-off corner
NOTE: When you replace the SIM card, ensure that you slide the SIM card under the two metal tabs on the SIM card slot with the cut-off corner of the
card facing toward the back of the computer.
CAUTION: Before performing the following procedures, read the safety instructions in your Product Information Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching a connector on the back panel of
the computer.
NOTICE: To prevent damage to the system board, remove the main battery before you service the computer.
1
internal card with Bluetooth wireless
technology
2
card cable
connector
3
M2 x 3-mm
screw
4
card holder
5
aligning pin
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NOTICE: Be careful when removing the card to avoid damaging the card, card cable, or surrounding components.
CAUTION: Before performing the following procedures, follow the safety instructions in your Product Information Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching a connector on the back panel of
the computer.
NOTICE: To prevent damage to the system board, remove the main battery before you service the computer.