Dell Precision 3520 - Installing the Smartcard Reader; LED Board; Removing the LED Board

Installing the SmartCard reader
1. Place the SmartCard reader on the .
2. Tighten the M2x3 screws to secure the SmartCard reader to the .
3. Affix the SmartCard reader cable and connect the cable to the connector on the system board.
4. Install the:
a. chassis frame
b. SSD card
c. battery
d. base cover
5. Follow the procedure in After working inside your computer.
LED board
Removing the LED board
1. Follow the procedure in Before working inside your computer.
2. Remove the:
a. base cover
b. battery
c. WLAN card
d. SSD card
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Disassembly and reassembly